ieee/pes transformers committeegrouper.ieee.org/groups/transformers/meetings/s2016...atlanta,...
TRANSCRIPT
Transformers Committee
Chair: Stephen Antosz Vice Chair: Sue McNelly Secretary: Bruce Forsyth
Treasurer: Greg Anderson Awards Chair/Past Chair: Don Platts Standards Coordinator: Jim Graham
IEEE/PES
Transformers
Committee
Spring 2016 Meeting Minutes
Atlanta, Georgia, USA
March 21, 2016
Unapproved (These minutes are on the agenda to be approved at the next meeting in Fall 2016)
Page 2 of 57
UTABLE OF CONTENTS
UOPENING SESSION – MONDAY MARCH 21, 2016
1.0 Agenda
2.0 Attendance
3.0 Approval of Agenda and Previous Minutes – Stephen Antosz
4.0 Meeting Schedule
5.0 Chair’s Remarks & Report – Stephen Antosz
6.0 Vice Chair’s Report – Susan McNelly
7.0 Secretary’s Report – Bruce Forsyth
8.0 Treasurer’s Report – Gregory Anderson
9.0 Awards Report – Don Platts
10.0 Administrative SC Meeting Report – Stephen Antosz
11.0 Standards Report – Jim Graham
12.0 Editor’s Report – Sanjib Som
13.0 Liaison Reports
13.1. IEC TC14 Technical Advisor to USNC – Phil Hopkinson
13.2. Standards Coordinating Committee No. 18 (NFPA/NEC) – Ned Brush
13.3. Standards Coordinating Committee No. 4 (Electrical Insulation) – Paulette Payne
reported by Don Platts
14.0 Unfinished (Old) Business
15.0 New Business
16.0 Monday Opening Session Adjournment
UCLOSING SESSION – THURSDAY MARCH 24, 2016
17.0 Chair’s Remarks and Announcements – Stephen Antosz
18.0 Meetings Planning SC Minutes & Report – Gregory Anderson
19.0 Reports from Technical Subcommittees (decisions made during the week)
20.0 Report from Standards Subcommittee (issues from the week)
20.1.
21.0 New Business (Continued from Monday General Session)
22.0 Thursday General Session Adjournment
UANNEXES – MINUTES OF TECHNICAL SUBCOMMITTEES
Annex A. Bushings SC – Peter Zhao
Annex B. Dielectric Tests SC – Michael Franchek
Annex C. Distribution Transformers SC – Steve Shull
Annex D. Dry Type Transformers SC – Charles Johnson
Annex E. HVDC Converter Transformers & Reactors – Mike Sharp
Annex F. Instrument Transformers SC – Ross McTaggart
Page 3 of 57
Annex G. Insulating Fluids SC – David Wallach
Annex H. Insulation Life SC – Sheldon Kennedy
Annex I. Meetings SC – Greg Anderson
Annex J. Performance Characteristics SC – Ed teNyenhuis
Annex K. Power Transformers SC – Joe Watson
Annex L. Standards SC – Jerry Murphy
Annex M. Underground Trans & Network Protectors SC – Dan Mulkey
Page 4 of 57
MONDAY OPENING SESSION
1.0 AGENDA
Opening Session
UMonday, March 21; 8:00 am - 9:15 am
(rosters circulated and attendance recorded as eligibility for Committee membership)
1. Welcome and Announcements ..................................................................... Stephen Antosz
2. Approval of Agenda ...................................................................................... Stephen Antosz
3. Approval of Minutes from Fall 2015 Meeting .............................................. Stephen Antosz
4. Chair’s Report ............................................................................................... Stephen Antosz
5. Vice Chair’s Report ...................................................................................... Sue McNelly
6. Secretary's Report ......................................................................................... Bruce Forsyth
7. Treasurer's Report ......................................................................................... Greg Anderson
8. Administrative Subcommittee Meeting Report ............................................ Stephen Antosz
9. Standards Report ........................................................................................... Jim Graham
10. Editor’s Report .............................................................................................. Sanjib Som
11. Liaison Representative Reports
11.1. IEC TC-14 Technical Advisor to USNC ......................................... Phil Hopkinson
11.2. Standards Coordinating Committee, SCC No. 18 (NFPA/NEC) ..... Ned Brush
11.3. Stds Coordinating Committee, SCC No. 4 (Elect. Insulation) .......... Paulette Payne Powell
12. Hot Topics for the Upcoming Week ............................................................. Subcommittee Chairs
13. New Business & Wrap-up ............................................................................ Stephen Antosz
Closing Session
UThursday, March 24, 11:00 am - 12:00 pm
1. Chair's Remarks and Announcements .......................................................... Stephen Antosz
2. Meetings Planning Subcommittee ................................................................ Greg Anderson
3. Reports from Technical Subcommittees (decisions made during the week)
3.1 Standards .............................................................................................. Jerry Murphy
3.2 Underground Transformers & Network Protectors ............................. Dan Mulkey
3.3 Bushings .............................................................................................. Peter Zhao
3.4 Dielectric Tests ................................................................................... Mike Franchek
3.5 Distribution Transformers ................................................................... Steve Shull
3.6 Dry Type Transformers ....................................................................... Chuck Johnson
Page 5 of 57
3.7 HVDC Converter Transformers & Reactors ....................................... Mike Sharp
3.8 Instrument Transformers ..................................................................... Ross McTaggart
3.9 Insulating Fluids .................................................................................. David Wallach
3.10 Insulation Life ..................................................................................... Sheldon Kennedy
3.11 Performance Characteristics ................................................................ Ed teNyenhuis
3.12 Power Transformers ............................................................................ Joe Watson
4. Additional Report from Standards Subcommittee (issues from the week) ... Jim Graham
5. New Business (continued from Monday) and Wrap-up ............................... Stephen Antosz
Page 6 of 57
2.0 ATTENDANCE
2.1 COMMITTEE MEMBER ATTENDANCE
Legend:
CM Committee Member
CM-LM Committee Member-IEEE Life Member
CM-EM Committee Member-Emeritus
Committee Member Attendance (Red designates CM added at present meeting)
Member
Type Name Company Mon Thu
CM-LM Amos, Richard Retired X X
CM Anderson, Gregory GW Anderson & Associates, Inc. X X
CM Ansari, Tauhid Haque ABB Inc. X X
CM Antosz, Stephen Stephen Antosz & Associates, Inc X X
CM Arteaga, Javier ABB Inc. X X
CM-LM Ayers, Donald Ayers Transformer Consulting X X
CM Ballard, Robert Schaffner X X
CM Balma, Peter Retired X
CM Beaster, Barry H-J Enterprises, Inc. X X
CM Beauchemin, Claude TJH2b Analytical Services X
CM Betancourt, Enrique Prolec GE X
CM-LM Binder, Wallace WBBinder Consultant X X
CM Blackburn, Thomas Gene Blackburn Engineering X X
CM Blaydon, Daniel Baltimore Gas & Electric X
CM-LM Boettger, William Boettger Transformer Consulting LLC X X
CM Boman, Paul Hartford Steam Boiler
CM Brender, David Copper Development Assn. X X
CM Bromley, Adam Fort Collins Utilities X X
CM Brush, Edwin BBF & Associates X X
CM-LM Bush, Carl Pemco Corporation X X
CM Callsen, Thomas Weldy-Lamont Associates X X
CM Castellanos, Juan Prolec GE X X
CM Chu, Donald Consolidated Edison Co. of NY X
CM Claiborne, C. Clair ABB Inc. X X
CM Colopy, Craig EATON Corporation X
CM Crotty, John Ameren X
CM-LM Crouse, John Crouse Consulting Company X X
CM Damico, Frank TAMINI Transformers USA X
CM Davis, Eric Burns & McDonnell X X
CM Del Rio, J. Arturo Trench Limited X X
CM Denzer, Stephanie General Electric
CM Dix, Larry Quality Switch, Inc. X X
CM Dohnal, Dieter Maschinenfabrik Reinhausen X
CM Dorris, Don Nashville Electric Service X X
CM Ellis, Keith Elect Connection, Inc (RHM International) X
CM Faulkenberry, Michael Georgia Power Co. X
CM Feghali, Pierre N. American Substation Services
CM-LM Foldi, Joseph Foldi & Associates, Inc. X
CM Forsyth, Bruce Southwest Electric Co. X X
Page 7 of 57
Committee Member Attendance (Red designates CM added at present meeting)
Member
Type Name Company Mon Thu
CM Foster, Derek Magnetics Design, LLC X
CM Franchek, Michael Weidmann Electrical Technology X X
CM Garcia, Eduardo Siemens X X
CM Gardner, James -- X X
CM Gaytan, Carlos Prolec GE X X
CM Ghafourian, Ali H-J Enterprises, Inc, X
CM-LM Girgis, Ramsis ABB Inc.
CM Golarz, Jeffrey LumaSense Technologies X X
CM Graham, James Mott MacDonald, Inc. X X
CM Graham, John Consultant X X
CM Griesacker, Bill Doble Engineering Co.
CM Gromlovits, Mark EMC OEM Products Division
CM Haas, Michael Instrument Transformers, LLC X
CM Hachichi, Said Hydro-Quebec X X
CM Hakim, Shamaun CG Power Systems USA Inc. X
CM Hardin, Michael H-J Enterprises, Inc. X
CM Harley, John FirstPower Group LLC X X
CM-LM Harlow, James Harlow Engineering Associates X
CM Hayes, Roger ALSTOM Grid X X
CM Heinzig, Peter Weidmann Electrical Technology X X
CM Hernandez, Ronald Doble Engineering Co. X
CM Herz, Josh Qualitrol X X
CM Hochanh, Thang Consultant X X
CM Hoffman, Gary Advanced Power Technologies X
CM Holifield, Thomas Howard Industries X X
CM-LM Hopkinson, Philip HVOLT Inc. X X
CM Iman, Mohammad MGM Tansformer Company X
CM Johnson, Charles ABB Inc. X X
CM Jordan, Stephen Tennessee Valley Authority X X
CM Kennedy, Gael GR Kennedy & Associates LLC X
CM Kennedy, Sheldon Niagara Transformer X X
CM Khalin, Vladimir KV Consulting X
CM King, Gary Howard Industries X X
CM Kinner, Robert FirstPower Group LLC X X
CM Kiparizoski, Zan Howard Industries X
CM Klaponski, Brian Carte International Inc. X X
CM Kraemer, Axel Maschinenfabrik Reinhausen X X
CM Kulasek, Krzysztof ABB Inc. X
CM Lau, Michael Weidmann Diagnostic Solutions X X
CM Levin, Aleksandr Weidmann Electrical Technology X X
CM-LM Lowdermilk, Larry LAL International, LLC X
CM-LM Marek, Richard DuPont X X
CM Matthews, Lee Howard Industries X X
CM McClure, Phillip Weschler Instruments X
CM McNelly, Susan Xcel Energy X X
CM McShane, Charles Patrick Cargill, Inc. X X
CM McTaggart, Ross Trench Limited X X
CM Mehrotra, Vinay SPX Transformer Solutions, Inc. X X
Page 8 of 57
Committee Member Attendance (Red designates CM added at present meeting)
Member
Type Name Company Mon Thu
CM Melanson, Joseph J. Melanson, Inc. X
CM Melle, Thomas HIGHVOLT X
CM-LM Miller, Kent T&R Electric Supply Co. X X
CM Millward, Paul Instrument Transformer Equip Corp
CM Molden, Arthur AMEESCO X
CM Moleski, Hali S.D. Myers Inc. X
CM Mulkey, Daniel Mulkey Engineering Inc X X
CM Murphy, Jerry Reedy Creek Energy Services X X
CM Murray, David Tennessee Valley Authority X X
CM Parkinson, Dwight EATON Corporation X X
CM Patel, Poorvi ABB Inc. X X
CM Patel, Sanjay Smit Transformer Sales, Inc.
CM Payerle, George Carte International Inc. X X
CM Penny, Brian American Transmission Co. X X
CM Perkins, Mark ABB Inc. X
CM Pezzin, Justin IFD Corporation X
CM Platts, Donald OMICRON electronics Corp USA X X
CM Pointner, Klaus Trench Austria GmbH X X
CM Poulin, Bertrand ABB Inc. X X
CM Prevost, Thomas OMICRON electronics Corp USA X X
CM Radbrandt, Ulf ABB AB X X
CM Rasco, Jimmy Ergon, Inc. X
CM Rasor, Robert S.D. Myers Inc. X
CM Rave, Martin ComEd X
CM Reed, Scott MVA Diagnostics, Inc.
CM Riffon, Pierre Pierre Riffon Consultant Inc. X
CM Robalino, Diego Megger X X
CM Robbins, Kirk Exelon Generation X X
CM Roussell, Marnie Entergy X X
CM Sarkar, Amitabh CG Power Systems USA Inc. X
CM Sarkar, Subhas Virginia Transformer Corp. X
CM Sauer, Daniel EATON Corporation X X
CM Schappell, Steven SPX Transformer Solutions, Inc. X
CM Schweiger, Ewald Siemens AG X X
CM Sewell, Adam Quality Switch, Inc. X X
CM Sewell, Jeremy Quality Switch, Inc. X X
CM-LM Sharma, Devki Entergy X
CM Sharp, Michael Trench Limited X X
CM Shertukde, Hemchandra University of Hartford X X
CM Shull, Stephen The Empire District Electric Co. X X
CM Sizemore, Thomas ABB Inc. X X
CM Skinger, Kenneth WEC TEC X X
CM Smith, Edward H-J Enterprises, Inc.
CM Snyder, Steven ABB Inc. X X
CM Solano, William Siemens X X
CM Som, Sanjib Siemens - Process & Drives X X
CM Spitzer, Thomas City Transformer Service Co. X
CM-LM Stahara, Ronald Stahara Consulting X X
Page 9 of 57
Committee Member Attendance (Red designates CM added at present meeting)
Member
Type Name Company Mon Thu
CM Stiegemeier, Craig ABB Inc. X X
CM Sweetser, Charles OMICRON electronics Corp USA X X
CM Swinderman, Craig Mitsubishi Electric Power Products X
CM Tanaka, Troy Burns & McDonnell X
CM-LM Tendulkar, Vijay ONYX, a Division of Smiths Power X
CM teNyenhuis, Ed ABB Inc. X X
CM Termini, Giuseppe PECO Energy Company X X
CM Thompson, James T&R Service Company
CM Thompson, Robert RST Consulting, P.C. X X
CM Thompson, Ryan Burns & McDonnell X
CM Tostrud, Mark Dynamic Ratings, Inc. X X
CM Traut, Alan Power Partners
CM Trummer, Edgar Transatlantic Transformer Consulting X X
CM Varghese, Ajith SPX Transformer Solutions, Inc. X X
CM Vedante, Kiran Meramec Instrument Transformer Co. X X
CM Verdolin, Rogerio Verdolin Solutions Inc. X X
CM Verner, Jane Ann Pepco Holdings Inc.
CM Vir, Dharam SPX Transformer Solutions, Inc. X
CM-LM Walia, Sukhdev New Energy Power Company X
CM Wallace, David ABB Inc. X X
CM Wallach, David Duke Energy X
CM Watson, Joe JD Watson and Associates Inc. X X
CM Wicks, Roger DuPont X X
CM-LM Wilks, Alan Consultant X X
CM Wimmer, William Dominion X
CM Woods, Deanna Alliant Energy X
CM Yang, Baitun Pennsylvania Transformer X X
CM Yule, Kipp Bechtel X X
CM Zhang, Shibao PCORE Electric
CM Ziomek, Waldemar PTI Manitoba Inc. X
Total Members present: 148 102
% of Members Present of U215 U members: 68.8 47.4
Based upon the above attendance totals:
Quorum was achieved at Monday Opening Session.
Quorum not achieved at Thursday Closing Session.
Page 10 of 57
2.2 GENERAL ATTENDANCE
Legend:
AP Active Participant
AP-LM Active Participant-IEEE Life Member
II Interested Individual
II-LM Interested Individual-IEEE Life Member
PCM Past Committee Member
General Attendance
Member
Type Name Company Mon Thu
II Abbott, Scott PPG Industries
II Abdelkamel, Hamid Ameren X
AP Ahmed, Omar Transformer Protector Corp X X
II Aikens, Thomas Virginia Transformer Corp.
AP Allen, Jerry Metglas Inc.
II Altoe, Renato Meramec Instrument Transformer Co. X
AP Antweiler, James Schneider Electric X
II Armstrong, Rodney Mitsubishi Electric Power Products
II Ayers, Roy Nashville Electric Service X X
AP Baranowski, Derek Baron USA, Inc. X
AP Barnes, Abbey X
AP Barnes, Michael Retired (Qualitrol) X X
AP Bartek, Allan C-K Composites X
II Basel, Cheryl CG Power Systems USA Inc. X X
AP Baumgartner, Christopher We Energies X X
II Beaudoin, Jason Weidmann X
AP Behrens, Tammy SPX Transformer Solutions, Inc.
II Bell, Myron Delta Star Inc. X X
II Bennett, Jay Southern Company Services X X
AP Bernesjo, Mats ABB Inc. X
AP-LM Bertolini, Edward Richards Manufacturing Co.
AP Berube, Jean-Noel Neoptix Canada LP X X
II Bigham, Lee Instrument Transformer Equip Corp
AP Blackmon, Jr., James Georgia Power Co. X
II Blackwell, Zack TCI Sales, Inc.
II Blake, Dennis Pennsylvania Transformer
II Blankenbeckler, Nicole DuPont X
II Blaszczyk, Piotr The Specialty Switch Co LLC X
II Blew, David PSE&G X X
AP Boege, Alan Orto de Mexico X
II Bolar, Sanket Megger X X
AP Bolliger, Alain HV Technologies
II Boyce, Christina IEEE
II Bradford, Eric General Electric Company
II Bradford, Ira Pennsylvania Transformer
II Bradshaw, Jeremiah Bureau of Reclamation X X
II Brauer, Stephan Morgan Schaffer X X
II Bray, Elizabeth Southern Company Services X
II Brinkman, Steve Cindus Corp. X
Page 11 of 57
General Attendance
Member
Type Name Company Mon Thu
AP Britton, Jeffrey Phenix Technologies, Inc. X
II Brown, Darren Howard Industries X
II Brusetti, Robert Doble Engineering Co. X
II Bryant, Ray Raytech USA X X
AP Burde, Jagdish PDI X
II Bush, Travis PPG Industries
AP Caskey, John NEMA
AP Castillo, Alonso M&I Materials, Inc.
II Caverly, David Trench Limited X
II Ceglia, Matthew IEEE X
II Chakraborty, Arup Delta Star Inc. X X
II Chapa, Raymundo WEG Electric Corp. X
AP Cheatham, Jonathan General Electric
AP Cheim, Luiz ABB Inc. X
AP Chiang, Solomon The Gund Company X X
II Childs, Scott Power Partners
AP Chisholm, John IFD Corporation X X
II Christodoulou, Larry Electric Power Systems X X
AP Chrysler, Rhett ERMCO X X
AP Clonts, Jermaine Power Partners X
II Collin, Jean-Francois Nomos Systems X
II Cooper, Jeffrey Unifin International X
II Corsi, Domenico Doble Engineering Co. X
AP Costa, Florian Corimpex USA, Inc.
II Cox, Paul GE Grid Solutions X
AP Craven, Michael Phoenix Engineering Services X X
II Cross, James Weidmann Electrical Technology X
II Cruz Cienfuegos, Jorge Partner Technologies Inc.
II Cumella, Arthur NWL Transformers
AP Cunningham, Kelcie Delta Star Inc.
II Dahlke, Michael Central Moloney, Inc. X X
AP Daniels, Timothy Weidmann Electrical Technology
II Dauzat, Thomas General Electric
AP Dave, Nikita Georgia Transformer
II Davis, Dustin Norplex-Micarta X
II del Valle, Yamille NEETRAC X X
II DeRouen, Craig ERMCO X X
AP Dhawan, Anil ComEd X X
II Di Biase, Antonio Tempel X
AP Diaby, Mohamed ABB Inc. X X
AP Digby, Scott Duke Energy X X
AP Dorpmanns, Luc SMIT Transformatoren, BV X X
II Dorsten, James Alabama Power X X
AP Drees, Terry Cindus Corp. X
II Drobnick, Jason Jordan Transformer X X
AP-LM Dukarm, James Delta-X Research X
AP-LM Duval, Michel Hydro-Quebec IREQ
AP Ebbert, Alexander HICO America
Page 12 of 57
General Attendance
Member
Type Name Company Mon Thu
II Ehmcke, Benjamin Ehmcke Consulting LLC
II Elder, Penny Utility Agency & Import (UAI)
II Eldringhoff, Catherine Nuclear Service Organization X X
II Elliott, Will General Electric X
II Ember Baciu, Daniela Hydro-Quebec, IREQ X
II Emry, Greg IFD Corporation X
II Emry, Greg IFD Corporation X
II Epperson, Hazel ME Consultants, LLC X X
II Euvrard, Eric RHM International X
II Evans, Aaron HICO America X
II Faherty, Joseph OTC Services
II Fattal, Feras Manitoba Hydro X
AP Faulkner, Mark EATON Corporation
II Faur, Florin ABB Inc.
AP Fausch, Reto RF Solutions X X
II Fawbush, William TVA X
AP Fedor, Ken Smit Transformer Sales, Inc.
II Fennell, Howard Nashville Electric Service X
AP Fernandes, Tania Efacec Energia, SA
PCM Ferreira, Marcos Los Angeles Dept Water & Power X
AP Field, Norman Teshmont Consultants LP X X
AP Flores, Hugo CG Power Systems USA Inc.
II Fong, Sanford Georgia Power X
II Foster, Nanette Foster Conner Recruiting
II Franchitti, Anthony PECO Energy Company X X
II Friend, Fredric American Electric Power X
AP Frimpong, George ABB Inc. X
AP Frotscher, Rainer Maschinenfabrik Reinhausen
II Fulmer, Mark JMX Services, Inc. X X
AP Gagnon, Jean-Francois Siemens Transformers Canada
AP Galbraith, Shawn Nuclear Service Organization X X
II Gamboa, Jose Siemens Energy X X
AP Gara, Lorne Orbis Engineering X
II Garcia, Benjamin Southern California Edison X
II Garcia, David EATON Corporation X
II Garcia, Victor Siemens X X
II Geibel, David ABB Inc. X X
II Giang, Rebecca Sherwin-Wiiliams Co.
II Gilmer, David TCI Sales, Inc.
AP Golner, Thomas SPX Transformer Solutions, Inc. X X
II Golubev, Alexander Dynamic Ratings, Inc. X
AP Gonzalez de la Vega, Jorge Orto de Mexico X
II Goydich, Shane Roechling X
II Gragert, Jeffrey Xcel Energy X X
AP Gross, Detlev Power Diagnostix X
AP Guilbault, Frank Cogent Power Inc. X
II Guner, Ismail Hydro-Quebec X X
II Gyore, Attila M&I Materials Ltd X X
Page 13 of 57
General Attendance
Member
Type Name Company Mon Thu
AP Hamilton, Kendrick Power Partners
AP Hammer, Mark GE Grid Solutions X
II Han, Suh Joon Dow Chemical Company X X
AP Harden, Kenneth Schneider Electric X X
AP Harder, Steven Siemens Energy
AP Harrison, Ken N. American Substation Services
AP Hartmann, Thomas Delta Star Inc. X
AP Herron, John Raytech USA X X
II Hirayama, Jun Vicksmetal Company
II Hoff III, Henry JEA X X
AP Holmes, Jill Bureau of Reclamation
II Hsu, Tingwei Shihlin Electric
II Huang, Chengjun PMDT X
II Huang, Yao Te Hitachi Fortune Transformer, Inc. X
II Hummel, Carl HICO America X
II Jackson, Jerry 3M X
AP Jakob, Fredi Consultant
AP Jaroszewski, Marion Delta Star Inc. X
II Jensen, Brad Burns & McDonnell X X
AP John, John Virginia Transformer Corp. X X
AP Johnson, Derek Reinhausen Mfg. X
II Johnson, Sidney Rimkus Consulting Group, Inc. X
AP Johnson, Wayne EPRI X
II Johnstone, Ted Cogent Power Inc. X
AP Joshi, Arvin General Electric X
AP Kaineder, Kurt Siemens AG X X
II Kampshoff, Ken Equisales X X
AP Kang, Jinho Hyundai Heavy Industries X X
II Kang, Junsuk Hyundai Heavy Industries X X
II Kelley, Robert N. American Substation Services
II Kelly, Joe TCI Sales, Inc.
II Kilgore, James Southern Nuclear Operating Co. X X
II Kim, Dong Southern California Edison X X
AP Kirchenmayer, Egon Siemens AG
AP Kirchner, Lawrence Siemens Energy
AP Kornowski, Marek Polycast International X X
II Koshel, Anton Delta Star Inc. X
AP Kranich, Neil Jordan Transformer X X
II Kuby, Kyle PTI Manitoba Inc. X
AP Kurth, Bernhard Reinhausen Mfg.
AP Kyle, Randall Southern Company X
AP Lachman, Mark Doble Engineering Co. X
II Lamorey, Maria PPG Industries X
II Laoye, Michael New York Power Authority X
II Laoye, Michael NYDA X
AP Larochelle, David NDB Technologies X
II Larzelere, William Evergreen High Voltage X
AP Lawless, Andrew ASTA Americas, Inc. X
Page 14 of 57
General Attendance
Member
Type Name Company Mon Thu
II Leal, Fernando Prolec GE X
AP Leal, Gustavo Dominion Virginia Power X X
II Lee, Alex HICO America X
II Lee, Chung-Ming Shihlin Electric & Engineering Corp. X
II Lee, So-young Hyundai Heavy Industries X X
II Leishman, Gary American Electric Power X X
II Levi, Raka AMforum X
AP Li, Weijun Braintree Electric Light Dept. X
II Lin, Pin Baoding Tianwei Baobian (BTW)
II Lively, Parry Tempel X
AP Livingston, Kerry Great River Energy X
AP Locarno, Mario Doble Engineering Co. X
II Lowman, Don S. Carolina Electric & Gas Co. X
II Lugge, Andrew Mitsubishi Electric Power Products X
AP Luksich, John Cargill, Inc. X X
II Luo, Shawn Seattle City Light X X
II Macdonald, Nigel Trench Limited X
AP Macias, Alejandro CenterPoint Energy X X
II Mahmoodianfard, Forough Teshmont Consultants LP X
II Mai, Tim-Felix Siemens AG X X
II Malde, Jinesh Weidmann Electrical Technology X X
AP Mango, Joseph NextEra Energy Resources
II Mani, Kumar Duke Energy X
II Mansuy, Bruno Trench France SAS
II Mao, Libin Consolidated Edison Co. of NY
II Marchini, Gregory IEEE
AP Marquardt, Bryan AK Steel
II Martig, Arnaud Trench Limited
AP Martin, Terence Doble Engineering Co. X
II Martin, Zach Delta Star Inc.
II Mattson, Trevor Schweitzer Engineering Labs X
AP McBride, James JMX Services, Inc. X X
AP McCullough, Douglas Maxima / Hyundai X
AP McIver, James Siemens Energy
II McKinney, Kenneth UL LLC X
AP McNeish, Kenneth TXTS X
II Medina, Juan Pablo Olsun Electrics Corporation X
II Middleton, Robert RHM International X
AP Miller, Michael Siemens Industry, Inc.
II Mills, Kerry JMX Services, Inc. X X
II Minhaz, Rashed Transformer Consulting Services Inc. X X
II Misur, Slobodan Trench Limited X
II Mitchell, Glenn Acense LLC X
II Moak, Mike Power Partners
II Momme, Thomas American Electric Power X
II Montanha, Juliano Siemens Ltda X X
II Montpool, Rhea Schneider Electric X
II Morakinyo, Paul PSE&G
Page 15 of 57
General Attendance
Member
Type Name Company Mon Thu
AP Morales-Cruz, Emilio Qualitrol X
AP Morgan, Charles Eversource Energy X
II Morrison, Richard Utility Agency & Import (UAI)
II Mullikin, John WEG Electric Corp.
II Musgrove, Ryan Oklahoma Gas & Electric X X
AP Mushill, Paul Ameren X
II Nambi, Shankar Bechtel X
II Natale, Anthony HICO America X
AP Navarro, Martin Siemens Ltda X X
II Neild, Kristopher Megger X X
II Neiman, Jeffrey SPX Transformer Solutions, Inc. X
II Nemec, Louis PMDT X
II Nguyen, HoangMinh PG&E X
II Niccum, Daniel N. American Substation Services
II Nie, Michael PMDT X
AP Nikoley, Ingo Electrical Cosultants, Inc
AP Nims, Joe Allen & Hoshall, Inc. X
II Nunes, Jr, Jayme Nynas AB X
II Nunez, Arturo Mistras Group, Inc.
II Nunn, Kraig ShockWatch
AP Oakes, Stephen Instrument Transformer Equip Corp X
AP Ogajanov, Rudolf ABB Inc. X
II Ojeda, Sam LumaSense Technologies X
II Ortiz, Jow NextEra Energy
AP Ostrander, David Ameren X
II Osuna, Miguel ABB Inc. X
II Owen, John Powertech Labs, Inc.
II Palakandy, Rahul Rajendran Black & Veatch X
AP Patel, Dhiru Hammond Power Solutions Inc. X X
AP Patoine, Barbara Weidmann Electrical Technology X X
II Pattou, Arnaud JST Transformateurs
II Pavlatos, Kerry Vicksmetal Company
II Pepe, Harry Phenix Technologies, Inc. X
II Pereira, Paulo Efacec Power Transformers
II Pesnel, Pierre JST Transformateurs
AP Peterson, Alan Utility Service Corporation
AP Petosic, Branimir Boiler Inspection & Insurance of Canada X X
AP Pinon, Oscar WEG-Voltran X X
II Prince, Jarrod ERMCO X X
AP Pruente, John SPX Transformer Solutions, Inc. X
II Ramesh, Gopalan ETEL Transformers Ltd
AP Rashid, Adnan Measurement Canada/Industry Canada X
II Ratcliffe, Robert Georgia Transformer
II Rathi, Rakesh Virginia Transformer Corp. X
AP Ray, Jeffrey JLR Consulting, Inc. X X
II Raymond, Mark UL LLC X
AP Razuvayev, Sergiy Delta Star Inc. X
II Reagan, Ashley ELTEK International Labs
Page 16 of 57
General Attendance
Member
Type Name Company Mon Thu
II Reese, Caren Power Partners, Inc.
AP Reiss IV, Clemens Custom Materials, Inc. X
II Riopel, Sebastien Electro Composites (2008) ULC
II Riordan, Kevin CG Power Systems USA Inc. X X
AP Roberts, Mark N. American Substation Services
II Robey, Dennis RL Components X
II Robles, Eduardo EATON Corporation X
AP Rock, Patrick American Transmission Co. X X
II Roizman, Oleg IntellPower Pty Ltd X X
AP Roman, Zoltan General Electric X
AP Ronchi, Rodrigo WEG-Voltran X X
II Rottenbacher, Andre Ritz Insrument Transformers
II Rowe, Ryan TCI Sales Inc. X
AP Sahin, Hakan ABB Inc. X
AP Saldivar, Juan Prolec GE X
II Sanchez, Eduardo Pacific Gas & Electric X
AP Sauls, Roderick Southern Company Services X X
AP Sauzay, Mathieu JST Transformateurs X X
II Sawant, Anil Virginia Transformer Corp. X
II Sbravati, Alan Cargill X X
AP Scarborough, Mark DuPont X
AP Scardazzi, Alaor Siemens Ltda X X
II Schiessl, Markus Starkstrom-Geraetebau GmbH X
AP Schleismann, Eric Southern Company X X
II Schneider, Jeffrey EATON Corporation X
AP Schrammel, Alfons Siemens AG X
II Schrom, Wesley Carolina Dielectric Maint & Testing Co. X X
II Schubert, Juergen Starkstrom Geraetebau GmbH
II Selvaraj, Pugazhenthi Virginia Transformer Corp. X
II Sestito, John Hitachi HVB, Inc.
AP Sewell, Russell Quality Switch, Inc. X X
AP Shannon, Michael Rea Magnet Wire X
II Sharifnia, Hamid HDR, Inc. X X
II Sharpless, Samuel Rimkus Consulting Group X X
II Sheehan, David HICO America X
AP Shem-Tov, Mark Von Roll Transformers X
II Sheridan, Peter SGB USA, Inc. X
AP Shertok, Yitzhak Duke Energy X
AP Shirasaka, Yukiyasu Hitachi Ltd. X X
II Shor, Andre Von Roll Transformers X
II Shorts, Geoffrey Central Moloney, Inc. X X
II Sibucao, Guillerno Con Edison X
AP Simonelli, Richard SPX Transformer Solutions, Inc.
II Simons, Andre Cogent Power Inc. X
II Singh, Kushal ComEd X
II Slattery, Christopher FirstEnergy Corp. X X
II Smith, Shane Delta Star Inc. X
II So, Eddy National Research Council of Canada
Page 17 of 57
General Attendance
Member
Type Name Company Mon Thu
AP Sohn, Yong Tae Hyosung X X
II Song, HeeSuck HICO America X
AP Sordo, Salvador WEG Electric Corp. X
AP Sparling, Brian Dynamic Ratings, Inc. X
AP Spurlock, Michael American Electric Power X
II Stacy, Fabian ABB Inc. X X
AP Stank, Markus Maschinenfabrik Reinhausen X
AP Stankes, David 3M X X
AP Steineman, Andrew Delta Star Inc. X X
AP Steineman, Christopher Meramec Instrument Transformer Co. X X
AP Stem, Gregory Cardinal Pumps & Exchangers X X
II Stevens, Charles Petro-Canada America
II Stinson, Robert General Electric X X
II Stockton, David H-J Family of Companies
AP Stranko, Jennifer HPN Global
II Su, Roy Fortune Electric X
II Subramanian, Raman Georgia Transformer X
II Subramany, Shankar KEMA Laboratories, DNV GL X
II Suddarth, Wes Nashville Electric Service X
AP Sullivan, Christopher Westmark Partners
II Sullivan, Liz ABB Inc.
II Summers, Carol Power Partners
AP Sundin, David Ambit Technical Consulting X
II Tabakovic, Dragan Hitachi HVB, Inc. X
II Tang, Cheng Baoding Tianwei Baobian (BTW)
AP Taousakis, Anastasios Pepco Holdings Inc.
II Thibault, Michael Pacific Gas & Electric X X
II Tillery, Timothy Howard Industries X X
II Tong, Lin SYET X
AP Trivitt, Donnie Oklahoma Gas & Electric X
II Turner, Justin GE Energy Management X
II Vailoor, Vasanth Trantech X X
II Valentin, Reinaldo Duke Energy X
II Van Horn, Jeremy IFD Corporation X X
AP VanderWalt, Alwyn Public Service Co. of New Mexico X X
II Varnell, Jason SPX Transformer Solutions, Inc. X
II Veillette, Michel Morgan Schaffer X
AP Verdell, Joshua ERMCO X X
II Vermette, Yves Electro Composites ULC
II Villagran, Deniss GE Grid Solutions
II Viswasam, Anselm Hyperion
II Vlach, Danijela Sherwin-Wiiliams Co.
AP vonGemmingen, Richard Dominion X X
II Voss, Stephan Siemens AG X X
II Walker, David ABB Inc. X
AP Walters, Shelby Howard Industries X
II Wang, Evanne DuPont X X
II Warren, Robert DNVGL KEMA Laboratories X
Page 18 of 57
General Attendance
Member
Type Name Company Mon Thu
AP Weatherbee, Eric PCORE Electric
AP Weathington, Larry N. American Substation Services
AP Weisensee, Matthew PacifiCorp X X
II Welch, Lee Georgia Power Co. X
AP Werelius, Peter Megger X
AP Williams, Michael Seminole Electric Cooperative X X
AP Williams, Randy ABB Inc.
II Williams, Trenton Advanced Power Technologies X X
II Wilson, Barnes Avista Utilities X
AP Wimberly, Barrett ALSTOM Grid X X
II Winstanley, Gerard NEMA X X
II Winter, Dr. Alexander HIGHVOLT Pruftechnik Dresden X X
II Wu, Shawn Shihlin Electric X
II Wyatt, Hayes ABB Inc. X
AP Yalla, Murty Beckwith Electric Co.
II Yeboah, Kwasi GE Energy Management X X
II Younes, Hassan Kinectrics
AP Young, Samuel Reinhausen Mfg. X
II Yu, Chun-Sheng Shihlin Electric X X
II Yun, Jiyoung Hyundai Heavy Industries X X
II Zhang, Pengyuan Baoding Tianwei Baobian (BTW)
II Zhu, Hanxin BC Hydro
II Zibert, Leo Allgeier, Martin and Associates X X
II Ziger, Igor KONCAR - Instrument Transformers X X
II Zouaghi, Abderrahmane ABB Inc.
Mon Thu
Total Non-Committee Member Attendance: 287 126
Total Committee Member Attendance: 148 102
Total Attendance: 435 228
In addition to the above totals, there were 219 of the total attendees that attended both the Monday and
Thursday Sessions and 443 that attended either the Monday or the Thursday Session.
3.0 APPROVAL OF AGENDA AND PREVIOUS MINUTES – STEPHEN ANTOSZ
The Chair presented the Agenda and asked if there was any opposition to unanimous approval of the Agenda.
Hearing none, the Agenda was approved.
The Chair asked if there was any opposition to unanimous approval of the minutes of the Fall 2015 meeting
that have been posted on the website. Hearing none, the minutes of the Fall 2015 meeting were approved as
written.
4.0 MEETING SCHEDULE
The meeting schedule is provided as Attachment 1
Page 19 of 57
5.0 CHAIR’S REMARKS & REPORT – STEPHEN ANTOSZ
5.1 CHAIR’S REPORT – PRESENTED AT THE MONDAY GENERAL SESSION
5.1.1 IEEE PES Technical Council
The Technical Council of the IEEE Power Energy Society (PES) is presently composed of the Chairpersons
of the PES Technical Committees, plus the Chairpersons of Standing Committees reporting to it. For
operating functions it is responsible to the IEEE Technical Advisory Board and for technical activities to the
IEEE Technical Activities Board.
The PES Technical Committees report to the Technical Council on matters concerning membership,
technical publications, recognition, scope and the coordination of the Power Energy Society generated
standards. For standards relating to their technical scope, the Technical Committees work directly with the
IEEE Standards Board and the Power Energy Society Standards Coordinating Committee.
For further details on the Statement of Purpose and Scope of Activities for the PES Technical Council Please
see; 28TUhttp://www.ieee-pes.org/statement-of-purpose-and-scope-of-activities-for-the-pes-technical-councilU28T.
5.1.2 Technical Council Officers & Members
The officers and members of the Technical Council are listed below for your reference. Each individual
listed here is the chair of that respective committee.
TECHNICAL COUNCIL OFFICERS 2015-2017
Miriam Sanders, Chair (SEL University)
Farnoosh Rahmatian, Vice Chair (Quanta Technology)
Secretary, Vijay Vittal (Arizona State University)
Past-Chair, Jeffrey Nelson (TVA)
STANDING COMMITTEES CHAIR
Awards Jeffrey H. Nelson
Technical Sessions Farnoosh Rahmatian
Organization & Procedures Vijay Vittal
Standards Coordination Ted Burse
COORDINATING COMMITTEES CHAIR
Emerging Technologies Nouredine Hadjsaid
Intelligent Grid Steve Pullins
Marine Systems Dwight Alexander
Wind and Solar Power Richard J. Piwko
TECHNICAL COMMITTEES CHAIR
Electric Machinery Kiruba Haran
Energy Development and Power Generation Michael J Basler
Insulated Conductors Frank Frentzas
Nuclear Power Engineering Stephen Fleger
Power System Analysis, Computing, & Economics Joydeep Mitra
Power System Communications Dan Nordell
Power System Dynamic Performance Pouyan Pourbeik
Power System Instrumentation & Measurements Jim McBride
Page 20 of 57
Power System Operations Hong Chen
Power System Planning and Implementation M. L. Chan
Power System Relaying Mike McDonald
Stationary Battery Rick Tressler
Substations Markus Etter
Surge Protective Devices Ronald W. Hotchkiss
Switchgear Paul Sullivan
Transformers Stephen Antosz
Transmission and Distribution John McDaniel
5.1.3 PES Technical Council Activities
The Tech Council is undertaking a project to ensure that the activities of each technical committee fits within
their scope, and that each has an updated O&P manual, and those that write standards also have a current
P&P.
A program to reorganize the committees has completed. The former list of 21 Technical Committees and
Coordinating Committees will be reduced to 20.
1. Intelligent Grid & Emerging Technologies (Coordinating Committee)
2. Marine Systems (Coordinating Committee)
3. Wind and Solar Power (Coordinating Committee)
4. Analytical Methods for Power Systems
5. Electric Machinery
6. Energy Development & Power Generation
7. Energy Storage & Stationary Battery
8. Insulated Conductors
9. Nuclear Power Engineering
10. Power System Communications & Cyber Security
11. Power System Dynamic Performance
12. Power Systems Instrumentation and Measurement
13. Power System Operations, Planning & Economics
14. Power Systems Relaying & Control
15. Smart Buildings, Loads & Customer Systems
16. Substations
17. Surge Protective Devices
18. Switchgear
19. Transformers
20. Transmission & Distribution
5.1.4 Templates for Technical Reports and Paper Compendiums
Jeff Nelson gave an update on the two products. The template will be available soon on the technical
committee activities web site. A motion was approved to make it mandatory that any new technical report be
put in the new PES format and be posted in the resource center, technical committees creating the technical
reports are allowed and encouraged to post the technical reports to their websites as well in a password
protected format.
5.1.5 Transformers Committee Activities
Officers Progression for the 2016-2017 Period
Page 21 of 57
In accordance with the rules set forth in the Transformers Committee Policies and Procedures Manual, the
Committee Officers (the Chair, the Vice Chair, and the Secretary) are recommended by the incumbent Chair
of the Committee with the concurrence of the immediate Past Chair and are approved by the Chair of the
Technical Council. Each is expected to serve a two-year term, and to follow the established progression
cycle for the next two-year period. The table below shows the progression of officer's assignment for the
two years beginning January 1, 2016.
Officer Role 2016-2017 Term
Committee Chair Stephen Antosz
Committee Vice-Chair Susan McNelly
Committee Secretary Bruce Forsyth
Past Chair / Awards Chair Donald Platts
Committee Treasurer* Gregory Anderson
Standards Coordinator* James Graham
* Treasurer and Standards Coordinator are excluded from the progression cycle.
Subcommittee Chairpersons & Technical Editor
Our current roster of the Subcommittee Chairs and Editor are:
Bushings Subcommittee Peter Zhao
Dielectric Test Subcommittee Michael Franchek
Distribution Transformers Subcommittee Stephen Shull
Dry-Type Transformers Subcommittee Charles Johnson
HVDC Converter Transformers & Smoothing Reactors Subcommittee Michael Sharp
Instrument Transformers Ross McTaggart
Insulating Fluids Subcommittee David Wallach
Insulation Life Subcommittee Sheldon Kennedy
Meetings Subcommittee Gregory Anderson
Performance Characteristics Subcommittee Ed teNyenhuis
Power Transformers Subcommittee Joe Watson
Standards Subcommittee Jerry Murphy
Underground Transformers & Network Protectors Subcommittee Dan Mulkey
Technical Editor Sanjib Som
5.1.6 New CD with compilation of C57 documents
We used to have the printed large book of C57 documents, but this was discontinued around 1998. Instead
of the printed edition, IEEE put out a CD in 2002, 2008, and 2011. We are planning to launch another one
this year in 2016. Typically, this has been done when the new main Standards C57.12.00 and C57.12.90 are
published, and they were both approved in December 2015. C57.12.90 was published this month (March
2016). C57.12.00 should be done in the coming weeks. IEEE-SA usually offers these to us at reduced price,
especially if we sell them at one of our Spring or Fall meetings.
Page 22 of 57
Peter Balma is leading this effort again. He has already developed a new list of the documents to go on the
CD, and has circulated this among the Administrative Subcommittee for review and comments. The
intention is to have the CD ready late this Summer for sale at the Fall meeting in Vancouver. We are
working out the details with IEEE-SA for pricing and mailing. Stay tuned.
5.1.7 IEEE Membership Status Elevation
All membership issues will be covered in detail by our esteemed Committee Secretary Bruce Forsyth, but I
just want to take a moment to have everyone stop and think a few moments about your membership level and
encourage you to keep it up and consider the options to step it up to the next level.
If you are a regular Member, then consider becoming a Senior Member. See Bruce for how to do this.
If you are an Interested Individual, then step up and get involved in some activity and become an Active
Participant. If you are an Active Participant, then apply to be a Committee Member. Observers are
welcome, but after a few meetings more active participation is encouraged.
There are over 500 people here today; many are IEEE Members and many are not. I want to encourage
everyone to become an IEEE Member, and to renew that membership every year. Furthermore, many of us
are PES and IEEE-SA Members as well. These membership categories are necessary to do much of the work
of developing IEEE Standards, so please consider adding the PES and IEEE-SA memberships to your
profile.
5.1.8 RFID
This issue will be covered in detail by our esteemed Meeting Planner, Greg Anderson. Bear with us as we
implement this new technology, which is intended to make our meetings better.
5.1.9 Tutorials.
We always continue to look for new and exciting topics. Tom Prevost is the leader of this activity for
coordination efforts. If interested, see me or Tom or any of the officers. Any feedback by attendees is
welcome.
5.1.10 Association Management System.
Everyone should be using AMS. All WG’s shall be using this to track their membership and meeting
attendance. If unable to so, then please assign it to someone who can do it.
5.1.11 Website Password Usage
It is not for public dissemination. It is for use by our meeting attendees (CM, AP, II) and associated work of
the Transformers Committee. One can think of it as a benefit of attendance and participation. Use it for
yourself and within your immediate workplace, but not beyond that.
Respectfully submitted,
Stephen Antosz
6.0 VICE CHAIR’S REPORT – SUSAN MCNELLY
The Vice Chair’s Report was presented at the Monday General Session.
Page 23 of 57
6.1 IEEE PES CALENDAR OF UPCOMING EVENTS
The following are upcoming PES sponsored conferences and committee meetings. Please check the PES
website at www.ieee-pes.org for further details, and additional events.
2016 IEEE/PES T&D Conference and Expo
May 2-5, 2016, Dallas, TX
2016 IEEE/PES General Meeting
July 17-21, 2016, Boston, MA
6.2 CONFERENCE PAPERS SUBMITTED IN 2015
A special thank you is extended to all of the Transformer Committee Members and participants who helped
with paper reviews. This help is greatly appreciated and is a wonderful representation of our Committee to
IEEE and the industry. Special thanks also goes to Steve Antosz who was responsible for organizing and
processing the papers for both the IEEE/PES T&D Conference and the IEEE/PES General Meeting for this
year.
6.2.1 IEEE/PES T&D Conference and Expo - May 2-5, 2016, Dallas, TX
The paper submission website opened July 13, 2015 and closed August 17, 2015. A total of 16 conference
papers were submitted. After peer review, 3 papers were rejected and 13 papers were accepted. They
will be presented at the Poster Session in May in Dallas. In addition, 2 Transactions Papers were accepted as
conference papers.
The papers that were accepted are:
ID TITLE
TD0011 Transactions Paper Thermodynamic Estimation of Transformer Fault Severity
TD0122 Transactions Paper Cold Start of a 240 MVA Generator Step-up Transformer Filled with
Natural Ester Fluid
TD0033 A Topology–Based Model for Two-Winding, Shell- Type, Single-Phase Transformer Inter-
Turn Faults
TD0143 Investigation on Frequency Response Analysis Measurement Method for Power Transformer
Impedance
TD0155 Mitigation of Adverse Effects of GICs on Transformers Using Look-Up Table Controlled
Ground Resistance
TD0158 Understanding DGA Techniques and Interpretations
TD0160 Vibration Response Analysis of Transformer Winding by Finite Element Method
TD0234 HiDry72: Short-Circuit Withstand Test upon the biggest ever Dry-type Power Transformer
TD0261 Acoustic tap-changer analyses using continuous wavelet transformation
TD0300 Minimizing Dielectric Frequency Response Measurement Time by using Multiple Frequency
Signals
TD0325 Noise Recognition of Transformers Based on Improved MFCC and VQ
TD0359 Transformer Oil DGA Monitoring Technology Study 2015
TD0423 A Comprehensive Diagnostic Evaluation of Power Transformers via Dissolved Gas Analysis
TD0453 Life Time Analysis of Distribution Transformer Using Experimental Design
TD0456 Impact of Smart Home Management Strategies on Expected Lifetime of Transformer
Page 24 of 57
PES has brought forward an initiative for promoting the work of the technical committees under PESs (AKA
PES’ “best kept secret”). Working Groups are encouraged to produce a poster on the activity of their WG
starting at the upcoming IEEE/PES T&D Conference and Expo in Dallas.
Interested WGs are requested to provide the following information to Maria ([email protected]) and
Farnoosh Rahmatian ([email protected]) by April 1st, 2016. Email subject line should read: “Poster
session for WGs - IEEE PES T&D Conference”.
Technical Committee Name: Transformers Committee
Working Group name
Project title (if different from WG name)
PAR number (if relevant)
Who from the WG will be presenting the poster at the IEEE PES T&D Conference and Expo
The following information is suggested to be included on each poster:
Technical Committee Name
Working Group name
Project title
PAR number (if relevant)
Project Scope
Target completion date
Project status
Key technical points being addressed in the work
6.2.2 IEEE/PES General Meeting - July 17-21, 2016, Boston, MA
The paper submission website opened October 14, 2015 and closed November 11, 2015. A total of 12 conference
papers were submitted. After peer review, 5 papers were rejected and 7 papers were accepted. They will be
presented at the Poster Session in July in Boston. In addition, 4 Transactions Papers were accepted as conference
papers.
The papers that were accepted are:
ID Title
16PESGM0262 TRANSACTIONS: Impact of second generation plug-in battery electric
vehicles on the aging of distribution transformers considering TOU prices
16PESGM0460 TRANSACTIONS: On the Effects of Solar Panels on Distribution Transformers
16PESGM0658 TRANSACTIONS: Impulse Generator Optimum Setup for Transient
Testing of Transformers Using Frequency-Response Analysis and
Genetic Algorithm 16PESGM0881 TRANSACTIONS: Analysis of Switching Effects of Vacuum Circuit Breaker
on Dry- Type Foil-Winding Transformers Validated by Experiments
16PESGM0142 Multi-Source Information Fusion for Power Transformer Condition Assessment
16PESGM0215 Refining IEC Code and Rogers Four Ratios DGA Methods for
Transformer Fault Diagnosis
S16PESGM0281 SAnti-interference of Rogowski Coil Current Transformers in Smart Substations
16PESGM0677 Simple and Accurate Time-Domain Method for Internal Fault Location in
Layer-type Transformer Windings
16PESGM0959 Comparison of Operational Characteristics between the Sen Transformer and
a Phase Angle Regulator
16PESGM0961 Unique Capabilities of Sen Transformer: A Power Regulating Transformer
Page 25 of 57
16PESGM1567 Optimization-Enabled EMT Modeling for Transformer Impulse Test
16PESGM1579 Oil Flow Surge Test for 110 kV Power Transformer During External Short Circuit
faults Respectfully,
Susan McNelly
Vice Chair
March 13, 2016
7.0 SECRETARY’S REPORT – BRUCE FORSYTH
7.1 MEMBERSHIP REVIEW
Voting Committee Members – At the Fall 2015 Administrative Subcommittee meeting in Memphis,
seventeen new Committee Member applications were reviewed and approved and one reinstatement request
from a Past Member (Scott Reed) was approved. The new members are listed in the following table.
Name Affiliation Sponsor #1 Sponsor #2 Sponsor #3 Membership
Category
Tauhid Ansari ABB Inc.
Ed teNyenhuis
Performance Char.
SC
(3 yrs.)
Ramsis Girgis
Audible Sound
(3 yrs.)
Pierre Riffon
Rev to Impulse
Tests
(3 yrs.)
Producer
Don Dorris
Nashville
Electric
Service
Jane Ann Verner
WG Field Tests
C57.152
(2 yrs.)
David Wallach
IFSC
(2 yrs.)
Tom Prevost
IFSC Consolidation
of oil guides
(1 yr.)
User
Jeff Golarz LumaSense
Technologies
Tom Prevost
Moisture in Insul.
C57.162
(1.5 yrs.)
David Wallach
DGA in LTC
C57.139
(2+ yrs.)
Joe Watson
Power TR SC
(2 yrs.)
Producer
Robert Kinner First Power
Group
Giuseppe Termini
C57.12.24
(2 yrs.)
Paul Boman
C57.155
(3 yrs.)
David Wallach
IFSC / DGA in
LTC
C57.139
(2 yrs.)
General
Interest
Krzysztof
Kulasek ABB Inc.
Ed teNyenhuis
Performance Char.
SC
(4 yrs.)
Peter Zhao
WG PC57.156
(6 yrs.)
Enrique Betancourt
WG PC57.158
(4 yrs.)
Producer
David B. Murray TN Valley
Authority
Mark Perkins
WG Rev to Test
Code
C57.12.90
(4 yrs.)
Peter Zhao
Bushing SC
(5 yrs.)
Jane Ann Verner
WG Field Tests
C57.152
(4 yrs.)
User
Aniruddha
Narawane ABB Inc.
Hemchandra
Shertukde
DPV Grid TR
PC57.159
(3 yrs.)
Phil Hopkinson
DETC Funct. Life
PC57.157
(3 yrs.)
Ed teNyenhuis
Performance Char.
SC
(3 yrs.)
Producer
Dwight
Parkinson
Cooper
Power
Systems by
Eaton
Ron Stahara
C57.12.34
(4 yrs.)
Jerry Murphy
C57.12.36
(4 yrs.)
Stephen Shull
Distribution SC
(4 yrs.)
Producer
Page 26 of 57
Name Affiliation Sponsor #1 Sponsor #2 Sponsor #3 Membership
Category
Sanjay Patel SMIT TRs
Hemchandra
Shertukde
DPV Grid TR
PC57.159
(3 yrs.)
Raj Ahuja
60076-57-1202
(3 yrs.)
Ed teNyenhuis
Performance Char.
SC
(3 yrs.)
Producer
Jimmy Rasco Ergon, Inc.
Bob Rasor
Oil Guide
C57.106
(4 yrs.)
C Patrick McShane
C57.147
(4 yrs.)
David Wallach
IFSC
(4 yrs.)
Producer
Amitabh Sarkar CG Power
Systems
Hemchandra
Shertukde
DPV Grid TR
PC57.159
(2+ yrs.)
Phil Hopkinson
DETC Funct. Life
PC57.157
(2+ yrs.)
Joe Watson
Power TR SC
(3 yrs.)
Producer
Vijay B.
Tendulkar
Onyx Power
Inc.
Hemchandra
Shertukde
DPV Grid TR
PC57.159
(3 yrs.)
Tim Holdway
C57.12.01
(3 yrs.)
Phil Hopkinson
60076-16
(3 yrs.)
Producer
Mark Tostrud Dynamic
Ratings
Tom Jauch
TR Paralleling
Guide
C57.153
(6 yrs.)
Hemchandra
Shertukde
DPV Grid TR
PC57.159
(4+ yrs.)
Joe Watson
Power TR SC
(6 yrs.)
Producer
Kiran Vedante ABB Inc.
Hemchandra
Shertukde
DPV Grid TR
PC57.159
(2+ yrs.)
Jane Ann Verner
WG GMD
C57.163
(6) mo.
Ed teNyenhuis
Performance Char.
SC
(2 yrs.)
Producer
Krishnamurthy
Vijayan
CG Power
Systems
Richard Marek
C57.154
(4 yrs.)
Ramsis Girgis
Audible Noise Test
Code
(3 yrs.)
Peter Zhao
Bushings SC
(8 yrs.)
Producer
Sukhdev S.
Walia
Brookfield
Power
Hemchandra
Shertukde
DPV Grid TR
PC57.159
(2+ yrs.)
Phil Hopkinson
DETC Funct. Life
PC57.157
(10 yrs.)
David Buckmaster
60076-16
(5+ yrs.)
User
Deanna Woods Alliant
Energy
Tom Prevost
Moisture in Insul.
C57.162
(2 yrs.)
Mike Lau
Installation Guide
C57.93
(2+ yrs.)
David Wallach
IFSC
(2+ yrs.)
User
Scott Reed MVA
Diagnostics - - - -
The Transformers Committee AMS database of people currently has three general categories of participation
in our activities. These are: Interested Individual, Active Participant, and Committee Member. Anyone
can join the AMS 123 system as the system is designed for self-registration. A new participant will
automatically be assigned the role of Interested Individual when they first sign up. Based on the level of
participation, the committee administrative staff will upgrade the participation status to “Active Participant”
when appropriate. The Committee Member status however, can only be attained through a formal
application with the sponsorship of a minimum of three WG or SC chairmanships. Details of the application
requirements and approval process by the Administrative Subcommittee are outlined in our O&P manual.
Page 27 of 57
The following table contains a count of the participants grouped by the three general categories (CM totals
do not include those requesting membership at this meeting).
Membership Status Mar-13 Oct-13 Mar-14 Oct-14 Apr-15 Nov-15 Mar-16*
Interested Individual 1277 1376 1381 1386 1362 1462 1471
Interested Individual - IEEE Life Member 8 16 12 10 9 11 11
Total Interested Individuals 1285 1392 1393 1396 1371 1473 1482
Active Participant 173 178 192 201 205 240 242
Active Participant - IEEE Life Member 5 5 5 6 6 7 5
Total Active Participants 178 183 197 207 211 247 247
Committee Member 186 170 166 170 173 161 172
Committee Member – Emeritus 6 3 09 10 10 10 9
Committee Member - IEEE Life Member 31 25 21 20 22 23 25
Total Committee Members 223 198 196 200 205 194 206
Past Committee Member 15 18 19 28 32
Past Committee Member - IEEE Life Member 6 6 7 6 5
Total Past Committee Members 21 24 26 34 37
TOTAL IN AMS DATABASE 1686 1773 1810 1827 1813 1948 1972
*Mar-16 data is as of 3/15/2016
It is the responsibility of each individual to keep his/her profile updated (except for the category).
7.2 NEW MEMBER APPLICATIONS
Five new applications for Committee Membership have been received for consideration since the Fall 2015
meeting in Memphis. One membership application (Hakim) was rolled over from the Fall 2015 meeting for
consideration pending receipt of additional information.
Name Affiliation Sponsor #1 Sponsor #2 Sponsor #3 Membership
Category
Stephanie Denzer
IEEE/PES/SA
status confirmed
GE
Mike Lau
C57.93
(2 yr.)
Charles Patrick
McShane
C57.147
(2 yr.)
David Wallach
Insulating Fluids
SC
(2 yr.)
General
Interest
Shamaun Hakim
IEEE/PES/SA
status NOT
confirmed
CG Power
Systems
Michael Franchek
Dielectric Test SC
(3 yr.)
Bertrand Poulin
WG Rev. of Low
Frequency Tests
(3 yr.)
Pierre Riffon
WG Ext Dielectric
Clearances
(3 yr.)
Producer
Ronald
Hernandez
IEEE/PES/SA
status confirmed
Doble
Engineering
Company
Ali Naderian
WG Dielectric
Frequency
Response
(2 yr.)
Thomas Prevost
WG PC57.162
(2 yr.)
Sheldon Kennedy
Insulation Life SC
(2 yr.)
Producer
Ryan Thompson
IEEE/PES/SA
status confirmed
Burns &
McDonnell
David Wallach
Insulating Fluid SC
(3 yr.)
James Thompson
C57.130
(3 yr.)
James Thompson
C57.637
(2 yr.)
User
Page 28 of 57
Name Affiliation Sponsor #1 Sponsor #2 Sponsor #3 Membership
Category
Ajith M.
Varghese
IEEE/PES/SA
status confirmed
SPX
Transformers
Solutions
Michael Franchek
Dielectric Test SC
(5 yr.)
Bertrand Poulin
WG Rev. of Low
Frequency Tests
(5 yr.)
Mark Perkins
WG PCS Rev. to
C57.12.90
(5 yr.)
Producer
Zan Kiparizoski
IEEE/PES/SA
status confirmed
Howard
Industries
Robert Rasor
WG C57.106
(2 yr.)
Thomas Prevost
WG PC57.162
(2 yr.)
David Wallach
Insulating Fluids
SC
(2 yr.)
Producer
The Committee welcomes and encourages active participants to become Members of the Committee.
Requirements and application forms can be found in the Organization and Procedures (O&P) Manual,
accessible on the Committee website. A link to the Membership Application form can be found on the
TransformersCommittee.org homepage in the Committee Information Box. Subcommittee Chairs are
encouraged to recommend new members and to communicate the process of attaining membership through
active participation and contribution at the WG and SC level. WG and SC Chairs are reminded also that
signing an application sponsoring a new member signifies their sponsorship that the applicant has met the
requirement of membership and active participation for at least one year in the WG or SC they Chair. New
member applications may be submitted to the Committee Secretary’s attention at any time. Applications will
be collected for review and approval in batches at each Administrative Subcommittee meeting.
7.3 COMMITTEE, SUBCOMMITTEES, AND WORKING GROUP ROSTERS
In order to provide indemnification to working group and subcommittee members it is crucial that
membership lists be maintained. The AM system has these functions built-in to ease these administration
tasks. It is important that each subcommittee and working group chair keep the rosters updated so that this
information can be provided to the IEEE SA.
A similar main committee roster has also been developed to track attendance for the Main Committee
General Session meeting on Monday & Thursday. The data will be used to update participant’s membership
profile.
7.4 IEEE/PES AND IEEE/SA MEMBERSHIP REQUIREMENTS
As a reminder, all members of the Transformers Committee must also be members in good standing of the
Power & Energy Society (IEEE/PES) and the Standards Association (IEEE/SA).
WG Chairs must also be a member of the SC, IEEE, PES, and SA.
7.5 COMMITTEE MEMBERSHIP MAINTENANCE
The following two members were revised to the status of Past Committee Member: Don Cherry and Wes
Patterson. Carlo Arpino was removed at his request. There are several other members who have not
attended for several meetings. Notices have been sent and their status will be changed unless they respond
with intentions of attending/participating in the Committee.
7.6 ESSENTIAL PATENT CLAIMS
The Transformers Committee asks each participant at the time of meeting registration if they are aware of an
essential patent claim, and if so to provide details. An Essential Patent Claim is any Patent Claim the use of
Page 29 of 57
which was necessary to create a compliant implementation of the IEEE Standard when there was no
commercially and technically feasible non-infringing alternative. In other words, if an IEEE Standard
REQUIRES the use of a product or process that is already patented, then this could be an essential patent
claim. If they did, they would be instructed to have the patent holder’s legal team file a Letter of Assurance
(LOA) with the IEEE-SA Standards Board Patent Committee. There is a link to this information on the
transformerscommittee.org website under Patent Disclosure Requirements.
For the Spring 2016 meeting in Atlanta, most people answered “NO” to the Patent question. There were 8
people who answered “YES” that they were aware of an essential patent claim. Of these 5 provided no
details and were therefore not considered any further. The remaining 3 were reviewed:
1. Referred to C57.139 – Letter of Assurance sent to IEEE Jan 2013.
2. Referred to PC57.147 and C57.155 – No LOA has been filed for patents related to Natural Ester
fluids. The SEP holder Cooper Industries, now part of Eaton Corporation has U.S. patent 7524440
issued in 2007 for the formulation of Natural Ester Fluid described in C57.147-2008 and C57.155-
2014, and it is needed for the implementation of these IEEE Guides. There may be other relevant
patents including 7815821, 8081054, 8097187 and 8361357 that may allow the SEP holder to claim
as relevant to this IEEE Guide. I support the position of the Officers of the TRC because they have
gone as far as they can without appearing to coerce of the SEP holder. The TRC Officers should be
duly advised that should PC57.147 be submitted to IEEE-SA RevCom that the RevCom Chair will
take this issue to the PatCom Chair and potentially the IEEE SASB to make the ultimate decision to
approve or disapprove the revision to PC57.147. I recommend a gentle reminder be provided to the
WG Chair and the SEP holder regarding this issue.
3. Referred to PC57.147 and C57.155 – Work continues on C57.147 and C57.155 despite the lack of an
LOA by Eaton Industries for claims under US Patent 6613250 (McShane, et. al.) As this patent
contains claims that cover all applications of natural ester fluids in transformers, are IEEE members
infringing on these patents by working on these guides?
7.7 AFFILIATION
According to the IEEE Standards Board Bylaws, there is a requirement that participants of an IEEE meeting
disclose their employer and affiliation. Consultants must state if they are sponsored or not. It is not
sufficient to simply announce "My name is John Smith, and I'm a consultant." If a consultant is sponsored
by a client, it must be disclosed. If the consultant does not have a sponsor, the proper introduction is
something such as “My name is John Smith, I am a consultant, and I represent myself at this meeting.”
7.8 MEETING MINUTES
The minutes of the Fall 2015 meeting in Memphis were posted to the committee website in February of
2016.
Subcommittee Chairs are asked to submit their respective subcommittee meeting minutes for the Atlanta
meeting to the Committee Secretary no later than May 20, 2016. It is strongly recommended that meeting
minutes be prepared soon after the meeting while the activities are still fresh in member’s minds. This helps
ensure the minutes accurately reflect the activities and decisions made during the meeting.
Subcommittee meeting minutes should be submitted via e-mail to the Committee Secretary, Bruce Forsyth
[[email protected]], who will also make sure that they are posted on the Committee website.
Page 30 of 57
The submittal file should be saved as a Word document formatted similar to this document. Attendance,
indication of quorum, names of members making any motion, seconding any motion, and the result of any
votes (affirmative and negative count) for each SC, WG, and TF meeting shall be included in all minutes.
Respectfully submitted,
Bruce Forsyth
Secretary
IEEE/PES Transformers Committee
March 16, 2016
8.0 TREASURER’S REPORT – GREGORY ANDERSON
Greg reported that the finances of the Committee are in good condition. As of 31st of January 2016 (end of
this reporting period), the balance was $59,683.51.
FYI: January 31st is essentially a "snap-shot" in time after all income & expenses are resolved from the
previous Fall 2015 Memphis Meeting, and before we start spending significant funds for the Spring 2016
Atlanta Meeting.
No significant assets (PC projectors, etc.) were purchased during this reporting period.
See attached summary of the balance of this reporting period, and the previous periods.
IEEE/PES TRANSFORMERS COMMITTEE
Treasurer’s Report – Spring 2016
(for reporting period 09/01/2015 to 01/31/2016)
AAAAA Balance before Spring 2014 Meeting, as of 01/31/2014 $72,586.57
AAAA Balance before Fall 2014 Meeting , as of 08/31/2014 $68,054.50
AAA Balance before Spring 2015 Meeting , as of 02/28/2015 $93,166.09
AA Balance before Fall 2015 Meeting , as of 08/01/2015 $53,501.80
Misc Income, not related to a specific meeting
-- interest, approx. 6 months $98.43
-- misc. income (loss); shirt sales, CD-ROM sales, book sales, etc. ($2,118.12)
B Total Misc Income (Loss), not meeting related ($2,019.69)
Misc Expenses, not related to a specific meeting
-- 123Signup subscription fee, for approx 6 months $879.00
-- awards $142.49
-- equipment purchases, major assets (projectors & cases, etc.) $0.00
-- technology (RFID tech, meeting app, WiFi equip, printers & ink, cables, etc.) $12,711.75
-- conferences, remote meetings, etc. $330.00
-- other misc. expenses (shirts, CD-ROMs, books, office supplies, name badges, etc.) $961.20
C Total Misc. Expenses, not meeting related $15,024.44
Spring 2015 Meeting
-- late income, meeting registrations (rolling reserve paybacks) $0.00
-- misc. late income (incentives, late sponsor contributions, etc.) $0.00
-- late meeting expenses $0.00
D Total Late Income/(expenses), Spring 2015 Meeting $0.00
-- reported prelim. gain/(loss), as of 09/01/2015, from previous Treasurer’s Report ($29,681.69)
Actual Gain/(Loss), Spring 2015 Meeting (between 08/31/2014 and 02/28/2015) ($29,681.69)
Page 31 of 57
Fall 2015 Meeting
-- income, meeting registration $209,585.53
-- income (coffee break sponsors) $7,525.00
-- meeting expenses $193,884.69
E Income minus expenses, Fall 2015 Meeting (between 09/01/2015 and 01/31/2016) $23,225.84
-- meeting expenses, before 08/31/2015, from previous Treasurer's Report $1,667.50
Preliminary Total Gain/(Loss), Fall 2015 Meeting $21,558.34
Expenses, Future Meetings (deposits paid, etc.)
-- meeting expenses, Spring 2016 Meeting $9,605.07
-- meeting expenses, other future meetings $3,748.97
F Total Expenses, future meetings, paid between 08/31/2015 to 01/31/2016 $13,354.04
G Net Income (loss), between Fall 2015 and Spring 2016 meetings (B - C + D + E) $6,181.71
A Balance before Spring 2016 Meeting, as of 01/31/2016 (AA + G) $59,683.51
9.0 RECOGNITION AND AWARDS REPORT – DON PLATTS
9.1 SPECIAL TRIBUTES
During the past several months since our previous meeting in October 2015 in Memphis TN, the
Transformers Committee and the industry lost two of our long time contributors. At our Awards luncheon
on Tuesday, the meeting attendees gathered to pay special tribute to these two friends who passed away in
November.
Carl G. Niemann (1939 – 2015)
Carl passed away suddenly in his home, on Nov. 14, 2015, at age 75.
Carl was a veteran of the US Army serving from 1960 to 1962. He married his wife Janet in 1963, and they
and their 2 sons resided in the Chicago area. He was active in his community where he served on the Village
Board, the Zoning Board and had been a member of St. Peter Lutheran Church.
Carl was an electrical engineer with ComEd (Commonwealth Edison) for 24 yrs., retiring in 2003. He was
an active participant in the IEEE Transformers Committee, where he served as the Chair of the Underground
Transformers and Network Protectors Subcommittee from 2000 to 2014.
As one of Carl's many friends said, "He was the kind of guy who you could talk to without pulling any
punches. He was always fun to be around and dedicated to his work." His sense of humor and honest laugh
will be deeply missed.
Arthur Conway "Sam" Hall
Sam passed away November 20, 2015 after a short stay in the hospital.
Sam was a Past Member of the Committee. The last time Sam attended our meetings was at the Porto
Meeting in 2008. He was also involved with CIGRE and IEC.
From his family: “It is with great sadness that we write to inform you of the death of Arthur Conway Hall,
known as Sam, who passed away on 20th November after a short stay in hospital.
Page 32 of 57
Sam had been unwell with respiratory problems for some time, and the past few months had seen a downturn
in his condition. Despite his admittance to hospital, you will be cheered to hear that he retained his sense of
humor and we, his family, were able to be with him, talking, laughing and remembering happy times.”
Paul Jarman “In memory of Sam, an exceptional friend, colleague and mentor who made a lasting
contribution to a vital industry.”
9.2 COMMITTEE MEMBERSHIP CERTIFICATES
The Transformers Committee welcomes eight new full committee members. Each of the following new
members was presented with a membership certificate:
New Member Affiliation
Ajith M. Varghese SPX Transformers Solutions
Ryan Thompson Burns & McDonnell
Stephanie Denzer GE
Ronald Hernandez Doble Engineering Company
Zan Kiparizoski Howard Industries
Shamaun Hakim CG Power Systems
George Payerle Carte International Inc.
Shibao Zhang Pcore Electric
9.3 IEEE FELLOW – CLASS OF 2015
IEEE Fellow is a distinction reserved for select IEEE members whose extraordinary accomplishments in any
of the IEEE fields of interest are deemed fitting of this prestigious grade elevation. The Fellow’s
Nomination involves a lengthy nomination process with documents describing the accomplishments and
contributions in details. It requires a number of three references, and also a number of endorsers, who each
also have to write a separate endorsement that describes why the candidate is deserving of this prestigious
recognition.
At this meeting, the Transformers Committee is honored to have a very active member and contributor of our
team, Mr. Sheldon Kennedy, to be selected to the 2016 class of IEEE Fellow for leadership in the technology
and standards for rectifier, inverter and harmonic-mitigating transformers.
Sheldon is currently employed by Niagara Transformer Corporation as their Vice President of Engineering.
He is the United States industrial convertor transformers representative to IEC from the ANSI National
Committee Technical Advisory Group.
He was the NEMA Transformer Section Chairman from 2000 to 2003. He is the past Chairman of the
Accredited Standards Committee C57 – Transformers, Regulators, and Reactors, 2002 - 2005.
Page 33 of 57
In addition, he is also a member of the Industry Applications Society and Chairman of the Electrochemical
Subcommittee of the PCIC - Petroleum and Chemical Industry Committee. He is the author of the Rectifier
Transformer chapter in the CRC book, “Electric Power Transformer Engineering”.
He also served as a part time Electrical Engineering Instructor at the Pennsylvania State University.
He has a Bachelor of Science degree in Electrical Engineering from the Pennsylvania State University and is
a licensed professional engineer.
Now bringing it a little closer to home here at Transformers Committee, this individual is not only a long
time attendee, but most importantly – a steadfast contributor and a technical leader to many of our specialty
product standards such as the semiconductor power rectifier transformers, arc furnace transformers, neutral
grounding devices, and also the non-ventilated dry type transformers. He most recently completed the project
for C57.12.32. And now he serves as our Insulation Life Subcommittee Chair.
The Transformers Committee presented a heartfelt congratulatory certificate of merit to recognize and
celebrate Mr. Kennedy’s achievement.
The list of IEEE Fellows from the Transformers Committee as included below for reference (in alphabetical
order the last name).
Name of IEEE Fellow Year Citation
Dennis J. Allan
(Life Fellow)
1992 for contributions to the design and development of power
transformers
Peter M. Balma 2013 for leadership in developing technical guides for electric power
equipment
Ray Bartnikas
(Life Fellow)
1977 for contributions to the field of dielectric and corona loss
mechanisms in electrical insulating systems.
William H. Bartley
(Life Fellow)
2014 for contributions to the development of generator and transformer
standards for life cycle planning and risk assessment
Robert C. Degeneff
(Life Fellow)
1993 for contributions to the modeling and computation of transient
voltages in transformer windings
Ramsis S Girgis
(Life Fellow)
1993 for contributions to reductions in the losses of large power
transformers
James H. Harlow
(Life Fellow)
2013 for leadership in IEEE technical and standardization committees
on transformer technology
Philip J Hopkinson
(Life Fellow)
2002 for contributions to the reliability of distribution transformers and
the development of related standards for testing and application
Gary R Hoffman 2015 for leadership in the advancement of monitoring systems for
power transformers and power line protection
Page 34 of 57
Name of IEEE Fellow Year Citation
Sheldon P Kennedy 2016 for leadership in the technology and standards for rectifier,
inverter and harmonic-mitigating transformers.
William J McNutt
(Life Fellow)
1976 for contributions to the design of power transformers ad
standardization of test procedures
Harold R. Moore
(Life Fellow)
1997 for leadership in the development, design, and application of
power transformers and associated equipment
Linden W. Pierce
(Life Fellow)
2000 for contributions to the understanding of heat transfer and loading
of liquid-immersed and dry type power and distribution
transformers
Robert A. Veitch
(Life Fellow)
1998 for leadership in the development and design of very large and
extra high voltage transformers, shunt reactors and associated
equipment
Loren B. Wagenaar
(Life Fellow)
1996 for contributions to transformer and bushing test standards and
specifications
Dean A. Yannucci
(Life Fellow)
1990 for leadership in the development and manufacture of large power
transformers
Committee members are encouraged to nominate our fellow contributors for this distinguished recognition of
Fellow. Nominations for the next year’s Class of Fellows must be completed and submitted by March 1 of
each year, including references by at least five active IEEE Fellows and optional additional endorsements.
9.4 RECOGNITION OF IEEE STANDARDS ASSOCIATION AWARDS
In any successful organization, there are always a handful of hard working individuals behind the scene that
put in the sweat and tears year after year in contributing to our success at each one of our meetings. The
Transformers Committee is proud to acknowledge that Mr. Peter Balma has received the IEEE
STANDARDS ASSOCIATION 2015 DISTINGUISHED SERVICE AWARD. We would like to take
this occasion to also take a pause and recognize Peter for his many years of service to our committee and also
to the industry.
Peter has been recognized for his leadership in the IEEE-SA Standards Board and his work towards
Standards development within our IEEE PES Transformers Committee.
Peter has been a tireless member of the Board, member of NesCom, Chair and member of AudCom and Ad-
Hoc Chair of numerous IEEE-SASB Ad-Hoc’s, that by his leadership, resulted in important and needed
revisions of the IEEE-SA Standards Board Operations Manual.
Peter continues to be a dedicated and tireless leader and admired and respected contributor to the
development of IEEE PES Transformer Committee Standards.
The Distinguished Service Award is made annually to current member(s) or past member(s) of the IEEE-SA
Standards Board to recognize distinguished service to the IEEE-SA based on major contributions to the
Page 35 of 57
standards development process.
Name of Award
Recipients
Affiliation Contributions
Peter Balma Peter Balma
leadership in the IEEE-SA Standards Board and his work
towards Standards development within our IEEE PES
Transformers Committee
9.5 GENERAL SERVICE AWARDS
Certificate of Appreciations were presented to the following list of recipients for their contributions to the
Transformers committee:
Name of Award Recipients Affiliation Contributions
Alan Traut Power
Partners, Inc. Meeting Host – Spring 2016
Power Partners, Inc. Power
Partners, Inc. Host Company– Spring 2016
Bruce Forsyth Southwest
Electric
Chair of Insulation Life Subcommittee
(2010–2015)
9.6 IEEE SA STANDARDS BOARD AWARDS
In addition to the Committee Awards above, the IEEE SA SB presents its own Award to the WG Chair upon
publication of a new or revised document, and offers the WG Chair the opportunity to nominate significant
contributors to the project for an IEEE SA SB Certificate of Appreciation.
IEEE SA Award Recipients:
Since our last meeting, we had one document that was recognized after being approved by RevCom, and
subsequently the SA Board. The members have received their recognition through the mail, but we have
acknowledged them here at the Awards Lunch.
Revision to C57.12.59 - Guide for Dry-Type Transformer Through-Fault Current Duration
Paulette Payne Powell - Working Group Chair
Bipin Patel - Vice Chair
Other Significant Contributors
Charles Johnson
Rick Marek
Timothy Holdway
We have a number of working groups that have completed their projects, their standards documents have
been published, but IEEE SA has failed to recognize them by awarding the SA plaques and Certificates of
Page 36 of 57
Appreciation. The Awards Chair will be working with IEEE SA to get these logistical and administrative
problems resolved.
The 9 Working Groups were again recognized as a group, at our Tuesday luncheon, with the understanding
that they may still request that the official plaque award ceremony be at a future Transformers Committee
meeting.
NEW Transformer Standards Approved
C57.130 2015- Guide for the Use of Dissolved Gas Analysis Applied to Factory Temperature Rise Tests for
the Evaluation of Mineral Oil-Immersed Transformers and Reactors
C57.157 2015- Guide for Conducting Functional Life Tests on Switch Contacts Used in Insulating Liquid
Transformers
C57.163 2015- Guide for Establishing Power Transformer Capability while under Geomagnetic
Disturbances
REVISIONS to Transformer Standards approved
C57.12.34 2015- Standard for Requirements for Pad-Mounted, Compartmental Type, Self-Cooled, Three
Phase Distribution Transformers, 10 MVA and Smaller;
C57.12.37 2015- Standard for the Electronic Reporting of Distribution Transformer Test Data
C57.12.59 2015- Guide for Dry-Type Transformer Through-Fault Current Duration
C57.125 2015- Guide for Failure Investigation, Documentation, Analysis, and Reporting for Power
Transformers and Shunt Reactors
C57.637 2015- Guide for the Reclamation of Mineral Insulating Oil and Criteria for Its Use
NEW Amendments Approved
1538a 2015- Guide for Determination of Max Winding Temp Rise in Liquid Transformers - Amendment#1
9.7 BEST SUBCOMMITTEE AWARD
One of the key contributing factors to our success is how well the meetings are being conducted. A good
meeting starts with planning ahead of the meeting. Prior to the meeting, the officers in charge will have to
decide on a list of meaningful agenda topics, plan ahead on the amount the time it takes for each of the
discussion items and getting the relevant information out to the meeting attendees so everyone can come
prepared for a meaningful discussion. During the meeting, lots of things could easily go off on a tangent.
Keeping the attendees aligned and on track with the agenda takes not only planning, but also on the spot
leadership to facilitate the discussion during the meeting. Then there is the documentation of the discussion
after the meeting in the meeting minutes. For these reasons, the award subcommittee will be recognizing our
hard working activity leaders that are doing a great job of conducting the subcommittee meetings on a going
forward basis.
The informal judging criteria consist of:
Well established agenda ahead of time, with relevant and meaningful topics
Good control of the meeting, following the established agenda
Page 37 of 57
Balanced discussions from the meeting participants, guided by the facilitation from the meeting chair
Keeping track of time so the meeting ends on time, etc.
Based on these criteria, the Best Subcommittee Meeting Award from the Memphis meeting was evaluated by
Bill Chiu. As recognition for their team work in conducting a well-run meeting we presented the award to
the Distribution Transformer Subcommittee, with Steve Shull as the Chair, Jerry Murphy as the Vice
Chair, and Secretary.
9.8 OTHER IEEE PES AWARDS
The IEEE PES recognizes important technical, educational and service contributions through the conferral of
numerous awards. The listing below highlights the various other awards that are available through the IEEE
PES organization.
28TIEEE PES Award for Excellence in Power Distribution Engineering 28T
28TIEEE PES IAS A.P. Seethapathy Rural Electrification Excellence Award 28T
Nominations due by February 1st
28TIEEE PES Charles Concordia Power Systems Engineering Award 28T
Nominations due by January 31st
28TIEEE PES Cyril Veinott Electromechanical Energy Conversion Award28T
Nominations due by February 1st
28TIEEE PES Douglas M. Staszesky Distribution Automation Award 28T
Nominations due by January 1st
28TIEEE PES Lifetime Achievement Award28T
Nominations due by February 1st
28TIEEE PES Leadership in Power Award28T
Nominations due by February 1st
28TIEEE PES Meritorious Service Award 28T
28TIEEE PES Nari Hingorani Custom Power Award28T
Nominations due by January 31st
28TIEEE PES Nari Hingorani FACTS Award28T
Nominations due by January 31st
28TIEEE PES Outstanding Chapter Award28T
28TIEEE PES Outstanding Power Engineering Educator Award 28T
Nominations due by January 31st
28TIEEE PES Outstanding Young Engineer Award28T
Nominations due by February 1st
28TIEEE PES Prabha S. Kundur Power System Dynamics and Control Award 28T
Nominations due by January 31st - 28TCall for Nominations
28TIEEE PES Prize Paper Award28T
28TIEEE Power & Energy Society Ramakumar Family Renewable Energy Excellence Award 28T
28TIEEE PES Robert P. Noberini Distinguished Contributions to Engineering Professionalism Award 28T
Nominations due by February 1st
28TIEEE PES G. Ray Ekenstam Memorial Scholarship 28T
15TNominations due by June 30th
Page 38 of 57
28TIEEE PES Scholarship Plus Initiative 28T
15TApplications due by June 30th
28TIEEE PES Roy Billinton Power System Reliability Award28T
Nominations due by February 1st
28TIEEE PES Student Prize Paper Award in Honor of T. Burke Hayes 28T
Nominations due by December 15th
28TIEEE PES Uno Lamm High Voltage Direct Current Award28T
Nominations due by November 30th
28TIEEE PES Wanda Reder Pioneer in Power Award28T
Nominations due by January 15th
28TIEEE PES Working Group Recognition Awards
28TThe PES Working Group Recognition Awards recognize “the most outstanding and timely
publications” by a PES Working Group (or Committee or Subcommittee) from among the
nominations. The PES Recognition Award is divided into two categories: 1) for technical reports; 2)
standards and guides. Each Technical Council Committee may nominate one report from each
category, published by IEEE, during the previous three year period.” This award consists of a plaque
which will be presented to the Working Group Chair at the PES Summer Meeting Awards
Luncheon. A framed certificate will be presented to each Working Group member at a designated
meeting of the parent Technical Committee.
28TIEEE PES CSEE Yu-Hsiu Ku Electrical Engineering Award
9.9 PRESENTATION SLIDES FROM THE AWARDS LUNCHEON
The slides from the presentation used at the Tuesday’s Awards Luncheon are included below for reference.
Page 39 of 57
Page 40 of 57
Page 41 of 57
Page 43 of 57
Respectfully submitted,
Donald W Platts
Chair, Recognitions and Awards Subcommittee
10.0 ADMINISTRATIVE SUBCOMMITTEE MEETING REPORT
10.1 INTRODUCTION OF MEMBERS AND GUESTS
The Chair called the meeting to order and asked attendees to introduce themselves and their affiliation.
Consultants were asked to identify the company they were representing if they were not representing their
own consulting interest. Introductions were made by members and guests.
Members Present:
Chair .................................................................................................................. Stephen Antosz
Vice Chair.......................................................................................................... Susan McNelly
Secretary ............................................................................................................ Bruce Forsyth
Treasurer/ Meetings Planning SC ..................................................................... Gregory Anderson
Standards Coordinator ....................................................................................... Jim Graham
Awards/Past Chair ............................................................................................. Donald Platts
Bushings ........................................................................................................... David Wallach for
Peter Zhao
Page 44 of 57
Dielectric Tests ................................................................................................. Michael Franchek
Distribution Transformers ................................................................................ Stephen Shull
Dry Type Transformers .................................................................................... Chuck Johnson
HVDC Converter Transformers & Reactors .................................................... Michael Sharp
Instrument Transformers .................................................................................. Ross McTaggart
Insulating Fluids ............................................................................................... David Wallach
Insulation Life .................................................................................................. Sheldon Kennedy
Performance Characteristics ............................................................................. Ed teNyenhuis
Power Transformers ......................................................................................... Joe Watson
Standards ........................................................................................................... Jerry Murphy
Underground Transformers & Network Protectors .......................................... Dan Mulkey
Guests ................................................................................................................ Peter Balma
Matthew Ceglia, IEEE
Christina Boyce, IEEE
Greg Marchini, IEEE
10.2 APPROVAL OF PREVIOUS MEETING MINUTES
The Chair asked for comments of the minutes from the Fall 2015 Administrative Subcommittee meeting in
Memphis. There were no objections to unanimous approval, therefore the minutes were approved.
10.3 ADDITIONS TO AND/OR APPROVAL OF THE AGENDA
The Chair reviewed the draft agenda and announced the addition of a new item under New Business – WG
Chair Removal Criterion. There were no other agenda changes requested. There were no objections to
unanimous approval of the agenda with the Chair’s addition therefore the agenda was approved.
Approved Agenda:
1. Introduction of Members and Guests (:05) ..................................................... All
2. Approval of Fall 2015 Minutes from Memphis (:03) ..................................... Stephen Antosz
3. Additions to and/or Approval of the Agenda (:02) ......................................... Stephen Antosz
4. Chair’s Report (:05) ........................................................................................ Stephen Antosz
5. Vice Chair’s Report (:05) ............................................................................... Sue McNelly
6. Secretary’s Report & New Committee Membership Approval (:10) ............. Bruce Forsyth
7. Treasurer’s Report (:05) ................................................................................. Greg Anderson
8. Recognition & Awards Report (:05) ............................................................... Don Platts
9. Standards Report (:30) .................................................................................... Jim Graham
10. IEEE Staff Update (:10).................................................................................. Erin Spiewak
11. Meeting Planning (:10) ................................................................................... Greg Anderson
11.1. Atlanta Meeting Update
11.2. Future Meetings
Time Check (3:30 pm) & Break (20 min max)
12. Old Business
12.1. WG Data – Confidentiality, Storage, Access, & Use (:10) ............... Erin Spiewak
Page 45 of 57
12.2. Draft Transformers Committee O&P Manual (:10) .......................... S. Antosz/P. Balma
13. New Business
13.1. IEEE Fellows Nominations (:05)....................................................... Peter Balma
13.2. New C57 Compilation CD (:05) ........................................................ E. Spiewak/P. Balma
13.3. WG Chair Removal Criterion ............................................................ Stephan Antosz
Time Check – 4:20 PM
14. Subcommittee Reports – Roundtable (not intended to indicate order of reporting)
Bushings (:03) ....................................................................................... Peter Zhao
Dielectric Test (:03) .............................................................................. Mike Franchek
Distribution Transformers (:03) ............................................................ Steve Shull
Dry Type Transformers (:03) ................................................................ Chuck Johnson
HVDC (:03) .......................................................................................... Mike Sharp
Instrument Transformers (:03) .............................................................. Ross McTaggart
Insulating Fluids (:03) ........................................................................... David Wallach
Insulation Life (:03) .............................................................................. Sheldon Kennedy
Performance Characteristics (:03) ......................................................... Ed teNyenhuis
Power Transformers (:03) ..................................................................... Joe Watson
Standards (:03) ...................................................................................... Jerry Murphy
Underground Transformers & Network Protector (:03) ....................... Dan Mulkey
15. Adjourn
10.4 CHAIR’S REPORT – STEPHEN ANTOSZ
Refer to Section 5.0 of the Main Minutes for a complete “Chair’s Report.”
Highlights:
Technical reports shall conform to the latest templates.
The officer progression resulted in a change for this meeting. The two new officers are Bruce Forsyth
(Secretary) and Jim Graham (Standards Coordinator). Two new Subcommittee Chairs have also been
appointed – Sheldon Kennedy (Insulation Life) and Jerry Murphy (Standards).
A new compilation CD will be available soon. Peter Balma will provide more details in his report.
The suggestion has been made to use major published documents as topics for tutorials.
The use of the AMS is not optional. It is required to comply with our record keeping obligations.
Subcommittee Chairs are asked to reinforce this with their respective activity leaders.
The website password is not for public dissemination, but it is appropriate to share it with people who are
directly involved with standard development. It is a benefit for use by attendees and their sponsoring
organizations.
10.5 VICE CHAIR’S REPORT – SUE MCNELLY
Refer to Section 6.0 of the Main Minutes for a complete “Vice Chair’s Report.”
Highlights:
Page 46 of 57
There are two upcoming IEEE/PES calendar events – the T&D Conference in May in Dallas and the General
Meeting in July in Boston.
PES encourages WGs to produce posters on their current activities in an effort to promote the work of our
technical committees.
10.6 SECRETARY’S REPORT – BRUCE FORSYTH
Refer to Section 7.0 of the Main Minutes for a complete “Secretary’s Report.”
Highlights:
There were six applications for Committee Membership to review. Five were submitted since the last
meeting and one had been rolled over from the last meeting. IEEE membership for the rolled-over
application (Shamaun Hakim) has not been verified, although Mr. Hakim has indicated to the Secretary by
email that the memberships have recently been attained. All applications were approved, subject to
verification of Mr. Hakim’s membership status.
There were eight positive responses to the essential patent claim question on the registration form. Of those,
only three provided any further detail and were noted in the full report.
10.7 TREASURER’S REPORT – GREGORY ANDERSON
Refer to Section 8.0 of the Main Minutes for a complete “Treasurer’s Report.”
Highlights:
Cash flow results in increases and decreases in account balance during the meeting planning and preparation
process as reservation fees are received and deposits and expenses are paid.
Overall our funds are in good shape.
10.8 RECOGNITION & AWARDS REPORT – DON PLATTS
Refer to Section 9.0 of the Main Minutes for a complete “Recognition & Award’s Report.”
Highlights:
During the Tuesday luncheon the host award will be presented, a new IEEE-SA Fellow will be recognized,
and an IEEE-SA Distinguished Service Award recipient will be recognized.
A recipient of the Transformers Committee Outstanding Contributor has not been selected at this time. Any
recommendations should be forwarded to the Don Platts for consideration.
Recommendations for the young engineering award sponsored by IEEE are requested.
Effective communication regarding awards is needed after the completion of a document to ensure awards
are prepared and proper recognition takes place in a timely manner.
10.9 STANDARD’S REPORT – JIM GRAHAM
Refer to Section 11.0 of the Main Minutes for a complete “Standards Report.”
Highlights:
Page 47 of 57
Since November 2015 the following approvals were received:
7 revisions were approved (C57.12.00, C57.12.90, C57.13, C57.32, C57.94, C57.106, C57.139)
4 PAR extensions were approved (PC57.12.24, PC57.12.36, PC57.19.04, PC57.156)
4 PAR modifications were approved (PC57.12.39, PC57.12.70-2011/Cor 1, PC57.15, PC57.147).
1 PAR for a new project was approved (PC57.19.02)
1 PAR for a corrigendum was approved (PC57.12.38-2014/Cor 1)
1 PAR request for revision of a standard was approved (PC57.16)
The deadline for submittal to REVCOM for Standards expiring in 2016 will be October 17, 2016.
10.10 IEEE STAFF UPDATE – MATTHEW CEGLIA
A presentation on the new MyProject system will be made during the Monday luncheon.
10.11 MEETING PLANNING REPORT – GREGORY ANDERSON
No written report provided.
Highlights:
Future meeting locations are shown on the main page of the Transformers Committee website.
Alan Traut from Power Partners, Inc. and host for the Atlanta meeting gave a brief update regarding the
meeting so far.
Tour sign-up procedures were slightly different for the Atlanta meeting compared to previous meetings.
Registrants were asked to express their desire to participate in certain activities, and this process seemed to
work well.
The Fall 2016 meeting will be held in Vancouver, Canada on October 23-27, 2016. The meeting will be
hosted by Paul Chisolm and IFD Corporation. Paul gave a brief presentation on the plans for the meetings
and activities.
It was noted that the Vancouver meeting is an international meeting, so proper planning with respect to
passports and travel visas will be required. US travelers who do not normally need to make special travel
arrangements may need to do so for the Vancouver meeting.
10.12 OLD BUSINESS
10.12.1 WG Data Confidentiality – Don Platts
Erin Spiewak is waiting for the Transformers Committee to tell the IEEE what is required with regard to data
confidentiality.
There was some discussion regarding the need to be able to keep confidential data and information
appropriately protected.
Mike Franchek noted resolution of this issue would be beneficial to several groups, including companies that
have information of value to the Transformer Committee documents.
Page 48 of 57
10.12.2 Draft Transformers Committee O&P Manual – Stephen Antosz & Peter Balma
A brief update on the background related to the documents governing our actions was presented by Peter
Balma. The discussion included information on the Transformers Committee Policies and Procedures
Manual (TC P&P) which is approved by IEEE, the Working Group Policies and Procedures Manual (WG
P&P) which is developed by Transformers Committee but approved by IEEE, and the Transformers
Committee Organization and Procedures Manual (TC O&P) which is developed by and approved by
Transformers Committee. It was noted that the TC O&P Manual deals with day-to-day operations as
opposed to the TC P&P Manual that deals with the standards writing processes. A few changes to the TC
O&P Manual have been proposed and will be circulated for review.
Don Platts is gathering information related to Standards Subcommittee scopes and will provide that
information to Peter Balma.
Tech Council will want to review any proposed changes before they are approved and put in place.
10.13 NEW BUSINESS
10.13.1 IEEE Fellows Nominations – Peter Balma
An overview of the IEEE Fellow nomination and evaluation process was presented. PES needs a Fellow
Representative for 2016 to participate in reviewing the nominees and helping to identify those falling under
the Transformers Committee, then ranking them based upon their accomplishments and endorsements.
Stephen Antosz will review the list of current Fellows and follow up later.
10.13.2 New C57 Compilation CD – Peter Balma
A new compilation CD should be ready for sale by mid-summer.
There was some discussion related to the sale and distribution for the CD at the Vancouver meeting.
International issues could complicate sales and distribution outside of the USA. Stephen Antosz stated we do
not want to distribute CDs in Vancouver.
There was further discussion related to the logistics involved in taking advance orders for the CD. Peter
Balma will discuss with Erin Spiewak and Matt Ceglia in an effort to find an acceptable process.
10.13.3 WG Chair Removal Criterion – Stephen Antosz
The need for WG Chairs to be actively involved in the activities of their respective groups to be effective was
discussed. The question regarding the best process to follow if a WG Chair has been ineffective was raised.
The Subcommittee Chair is responsible for appointing WG Chairs, but it is unclear if the SC Chair can
remove a WG Chair. It was noted that a procedure is described within the WG P&P Manual that allows the
WG members to remove a sitting Chair by a 2/3 majority vote. Stephen Antosz suggested that what may be
needed is a process that allows a Subcommittee Chair a way to handle such issues in a more confidential, but
open and professional manner before the issue gets to the point that the WG would feel the need to publicly
vote a sitting Chair out of office.
After a long discussion, a motion was made by Jim Graham (seconded by Steve Schull) to form a Task Force
to propose language for the WG P&P (Clause 3.3) to remove a WG Chair. The motion was passed
unanimously.
Page 49 of 57
Stephen Antosz appointed the following people to be on the Task Force: Jim Graham, Steve Schull, Chuck
Johnson, Stephen Antosz, Sue McNelly, Erin Spiewak, Peter Balma, Don Platts. He asked that a proposal be
presented not less than 30 days before the next AdCom meeting.
10.14 SUBCOMMITTEE REPORTS
Subcommittee Report/Hot Topic
Bushings – P. Zhao (reported by D. Wallach) No pressing issues to report.
Dielectric Test – M. Franchek C57.138 document has been balloted. The Ballot
Resolution Group will be meeting to discuss issues.
Distribution Transformers – S. Shull Some concern regarding DOE issues. First is a concern
about loading levels, and second is the plan to expand to
10 MVA.
Dry Type Transformers – R. Ballard for C.
Johnson
Casey Ballard has been appointed Chair of C57.12.01 and
Roger Wicks has been appointed Chair of C57.12.60.
There will be one off-schedule meeting for C57.16 on
Monday at 1:45 PM.
HVDC – M. Sharp The recent progress made regarding dual logo standards
will be discussed during the SC meeting.
Instrument Transformers – R. McTaggart The first meeting of the TF for CCVTs will take place
during this week.
Insulating Fluids – D. Wallach Focusing on activities that expire soon.
Insulation Life – S. Kennedy Three activity groups will be meeting during this week
(C57.162, IEEE 1276, C57.119 BRG).
Performance Characteristics – E. teNyenhuis There are 15 active groups of which 4 have PARs expiring
this year.
Power Transformers – J. Watson All projects are on schedule and moving along well.
C57.148 is starting up again during this week.
Standards SC – J. Murphy A corrigendum is planned for C57.12.80 to address the
definition of distribution transformers.
Underground Transformers & Network
Protectors – D. Mulkey
There are 4 active WGs, one in ballot and one going to
ballot soon.
Matt Ceglia asked SC Chairs to consider the total number of people actively working on a project during
submission of a PAR or an extension of a PAR. He suggested considering the broader community who may
contribute to the document.
Greg Anderson gave a brief update regarding the RFID system that will be used during this week’s meetings.
10.15 ADJOURNMENT
The meeting was adjourned at 5:25 PM.
Submitted by:
Bruce Forsyth,
Secretary, Transformers Committee
Page 50 of 57
May 15, 2016
11.0 STANDARDS REPORT – JIM GRAHAM
Jim reported that the full Standards Report is available on the website.
The final day to have activities considered for approval in 2016 is October 17, 2016.
Jim reviewed the list of active documents and PARS.
The topic for the Monday luncheon will be the new MyProject application.
The semi-annual Standards Report is included as Attachment 2.
12.0 EDITOR’S REPORT
Between Fall 2015 meeting and this meeting a total of 47 papers were in editorial review in the transformer
area of IEEE Transactions on Power Delivery for possible publication. For all of these papers the
recommendations were as follows:
Accept: 10
Revise and Resubmit: 16
Reject: 10
Under review 11
The above numbers include reviews managed by all editors.
The papers which were accepted for publication are shown below:
Number Paper ID Title
1 TPWRD-00353-2015.R2
Increased Efficiency of Thermal
Calculations via the Development
of a Full Thermo-Hydraulic
Radiator Model
2 TPWRD-00914-2015.R1
Duality Derived Transformer
Models for Low-Frequency
Electromagnetic Transients Part I:
Topological Models
3 TPWRD-00603-2015.R2
Measuring the Pressboard Water
Content of Transformers Using
Cellulose Isotherms and the
Frequency Components of Water
Migration
4 TPWRD-00702-2015.R1
Analysis of Three-Phase
Transformer Response due to GIC
using an Advanced Duality-Based
Page 51 of 57
Model
5 TPWRD-00302-2015.R3
Transactions Gyrator-Capacitor
Approach to Modeling a
Continuously Variable Series
Reactor
6 TPWRD-00743-2015.R2
Transactions Nonlinear Magnetic
Equivalent Circuit Based Real-
time Sen Transformer
Electromagnetic Transient Model
on FPGA for HIL Emulation
7 TPWRD-00966-2015.R2
Transactions Influence of the
MV/LV transformer impedance
on the propagation of the PLC
signal in the power grid
8 TPWRD-00390-2015.R3
Transactions Transient Modelling
of Saturated Core Fault Current
Limiters
9 TPWRD-01065-2015
Localization of Radial
Displacement in an Actual
Isolated Transformer Winding-
Analytical Formulation
10 TPWRD-01371-2015
A Joint Vibration and Arcing
Measurement System for Online
Condition Monitoring of On-Load
Tap Changer of Power
Transformer
Two significant changes favoring authors of papers continue to be in practice.
Firstly, on first submission three reviewers are required compared to earlier practice of four.
Secondly, IEEE overall has changed its policy to allow for up to 40% commonality in comparison to earlier
publication.
The first step has made the process faster while the second step allows authors to convert their ideas faster
into papers.
It is important for all interested individuals to follow the norm for writing papers as provided in IEEE; the
link is 28Thttp://www.ieee.org/publications_standards/publications/authors/authors_journals.html 28T and
the link to upload the paper is 28Thttp://mchelp.manuscriptcentral.com/gethelpnow/training/author 28T.
I would like to thank all of the reviewers who volunteered for this effort and donated their time, and would
like to encourage everyone associated with IEEE Transformers Committee activities to consider becoming a
Reviewer. I would like to encourage those Reviewers that already have an account on IEEE Manuscript
Central to keep their profile information updated and complete the areas for key words and areas of interest.
Page 52 of 57
We need more reviewers and I encourage any of you that have not signed up as reviewers to sign up per the
instructions at the end of this document.
Please inform me at [email protected] as soon as you do sign up so that we are able to utilize your
efforts as reviewer.
I would also like to take this opportunity to personally acknowledge the reviewers involved in the
transformer committee who have been regularly and consistently reviewing papers. This is an
important contribution since it maintains the high standards for our papers and it gives back to the
industry their expert knowledge.
Special mention must also go out to the editors who have worked hard to make this possible; they are Dr. S.
V. Kulkarni, Dr. Francisco De Leon, and Dr. Wilsun Xu.
Respectfully Submitted,
Sanjib Som
Editor, IEEE Transactions on Power Delivery from Transformer Committee
All members and attendees of the IEEE Transformer Committee are invited to review technical papers.
Please sign up at: 28Thttps://mc.manuscriptcentral.com/tpwrd-pes28T
INSTRUCTIONS FOR SIGNING UP TO REVIEW IEEE TRANSACTIONS PAPERS
1. Before you create a new account, please check for an existing account by clicking on: "Check for
Existing Account"
2. Assuming that you do not get an existing account notification email, click on "Create New Account" and
enter in your information.
3. Please specify any “Specialty / Area of Expertise” according to the 5 numerical codes below:
13a: Power and Instrument Transformers
13b: Insulating fluids category
13c: Dielectric Testing
13d: Audible Noise and Vibration
13e: Transformer Modeling Techniques
4. Please specify any “Key Words” such as: distribution transformers, core losses, oil DGA, or thermal, for
example.
5. Submit your information.
6. Click on "Request Reviewer Status" to be enabled as a reviewer.
13.0 LIAISON REPORTS
13.1 IEC TC14 TECHNICAL ADVISOR TO USNC – PHIL HOPKINSON
Phil Hopkinson discussed similarities and differences between IEC and IEEE. His presentation touched on
the scope and voting relationships of each group.
Page 53 of 57
13.2 STANDARDS COORDINATING COMMITTEE NO. 18 (NFPA/NEC) – NED BRUSH (REPORTED BY
STEPHEN ANTOZS)
SCC 18 provides one voting member to each Panel (there are 19 Panels) for consideration of changes to
NEC, which is issued every 3 years.
The 2017 National Electric Code (NEC) is planned for issue in Fall, 2016.
I am "principal" on Panel 6, that considers section NEC 310.15. Meetings were November and December,
2015.
Proposals have all been reviewed and voted; all but one unanimous.
The "rooftop adder" "proposal" (to adjust wire and cable ambient temperatures to reflect actual application
situations), was controversial and passed committee. However, the last meeting, June, 2016, finalizes the
2017 Code and has public comments, voting and may modify (add, delete, etc.) proposals.
I will report progress and status in Vancouver.
13.3 STANDARDS COORDINATING COMMITTEE NO. 4 (ELECTRICAL INSULATION) – PAULETTE
PAYNE (REPORTED BY DON PLATTS)
13.3.1 Scope:
To formulate guiding principles for the evaluation of insulation materials and systems for electrical
and electronic applications.
To formulate principles for the identification of insulation materials and systems based on functional
tests and/or experience.
To coordinate the preparation of standards for functional test programs and diagnostic methods for
the evaluation of insulation materials and systems.
13.3.2 Standards:
IEEE 1-2000 (R2011) Recommended Practice – General Temperature Limits in the Rating of
Electrical Equipment and for the Evaluation of Electrical Insulation
IEEE 98-2016 Standard for the Preparation of Test Procedures for the Thermal Evaluation of Solid
Electrical Insulating Materials
IEEE 99-2008 Recommended Practice for the Preparation of Test Procedures for the Thermal
Evaluation of Insulation Systems for Electrical Equipment
13.3.3 Current Activities:
IEEE 99 –PAR expires Dec 2020. Initial draft has been prepared but some details still need
development. Anyone interested in joining the P99 WG can contact the chairperson, Evanne Wang:
For those interested in joining the SC contact Paulette Payne Powell, Chairperson SCC 04:
Respectfully submitted,
Paulette Payne Powell
Page 54 of 57
14.0 NEW BUSINESS
14.1 IEEE NESCOM/REVCOM
Peter Balma noted that IEEE is constantly trying to improve the standards development process. He noted
that at this time a PAR must be completed within 4 years or the project may get cancelled. Peter urged
activity leaders to keep the process moving to ensure projects are completed within the 4-year time frame.
14.2 TUTORIAL PROPOSAL
A member of the audience (name not recorded) recommended a tutorial for diagnostic testing of on-load tap
changers. The Chair referred the member to Tom Prevost.
14.3 PATENT POLICY
Gary Hoffman commented on the new patent policy that was recently approved. He noted that any project
referred to SA will be referred to PatCom and may be rejected if proper procedures regarding Patent Letters
of Assurance (LOA) have not been followed. Gary urged holders of an essential patent to file the appropriate
LOA to help ensure the IEEE documents can be approved.
14.4 VACUUM TECHNOLOGY
Phil Hopkinson commented on current vacuum technology and its use in transformer industry. He suggested
some sort of coordination between the different technical councils is in order.
15.0 UNFINISHED (OLD) BUSINESS
No old business was discussed.
16.0 MONDAY GENERAL SESSION ADJOURNMENT
The meeting adjourned at 9:15am.
Page 55 of 57
THURSDAY GENERAL SESSION
17.0 CHAIR’S REMARKS AND ANNOUNCEMENTS
The Chair called the meeting to order at 8:00 AM.
18.0 MEETINGS PLANNING SC MINUTES & REPORT – GREGORY ANDERSON
Greg welcomed everyone and introduced Alan Traut (Power Partners, Inc.) who hosted the Atlanta Meeting.
Alan thanked everyone for attending and indicated it was a pleasure to host the meeting. He introduced his
team members who helped plan and coordinate the meeting.
Greg introduced Paul Chisolm (IFD Corporation) who will host the next meeting in Vancouver, British
Columbia, Canada on October 23-27, 2016. Paul gave a brief update on the meeting plans available at this
point.
Greg noted that the next meeting page is currently available on the website and presented preliminary
attendance numbers.
Future meeting locations for spring 2017 and beyond have not been confirmed at this time, but the
information will be posted on the website when dates and locations have been confirmed.
Greg gave a brief update on our use of RFID badges to track meeting attendance. There were a few technical
issues that were resolved during the current meeting and we will use the same basic process in Vancouver.
Regarding hotel reservations, Greg asked attendees no avoid cancelling hotel reservations at the last minute
since that may result in costs to the Transformers Committee due to the agreement(s) made with the host
hotel. Greg asked for cancellations to be made early, or to call him to discuss the cancellation.
Tom Prevost announced two presentation topics for the next meeting:
i. Changes and Additions Made to C57.12.00 and C57.12.90 in the 2015 Revision (Steve Antozs, Steve
Schneider)
ii. Passive Knowledge Capture and Brain Drain in Electric Utilities – An IEEE Perspective (Nick
Perjanek)
Greg reminded attendees that all participants are required to wear a name badge to attend the Transformer
Committee meeting activities.
19.0 REPORTS FROM TECHNICAL SUBCOMMITTEES (DECISIONS MADE DURING THE WEEK)
Reports from each Technical SC were presented. Their minutes are included in full in the attached Annexes.
19.1 STANDARDS SC (JERRY MURPHY)
There was good attendance and reports from all activity groups and the SC had a quorum at its meeting.
Moving forward with preparation of a few corrigenda. Proposals for corrigenda for C57.12.00 and
C27.12.90 were approved. A corrigendum for C57.12.70 was started during this meeting.
Page 56 of 57
19.2 UNDERGROUND TRANS & NETWORK PROTECTORS SC (DAN MULKEY)
C57.12.24 is currently out for ballot. C57.12.44 has a new WG leader. C57.12.23 work continues with a
few modifications made during this meeting. C57.12.40 is close to going out for ballot.
19.3 BUSHINGS SC (SCOTT DIGBY FOR PETER ZHAO)
A PAR has been approved for C57.12.102. A TF reviewing composite bushings has completed its work and
will present a summary at the next meeting. An issue related to partial discharge in bushing has been
referred to the Dielectric Test SC. Contradictions between certain clauses in C57.12.00 and C57.12.100 will
be reviewed in upcoming meetings.
19.4 DIELECTRIC TEST SC (MIKE FRANCHEK)
The WG on external clearances is ready to have its recommendations reviewed by the SC. A motion to have
the SC surveyed was passed. The WG on revision of low frequency tests updated results of recent surveys.
A proposal to revise the SC scope was approved. A new item related to the effects of high frequency
transients from breaker operation on transformers was raised and a motion to create a TF to study the issue
was approved.
19.5 DISTRIBUTION TRANSFORMERS SC (STEVE SCHULL)
The WG on C57.12.20 is continuing to work on the current ballot. C57.12.34 has been published and a new
revision is being discussed. C57.12.36 has been balloted and work on addressing ballot issues is ongoing.
An error was discovered in C57.12.38 and a group has been working on a correction. IEC 60076-15-15 has
generated a lot of comments. The TF on DOE efficiency has been reactivated.
19.6 DRY TYPE TRANSFORMERS SC (CHARLES JOHNSON)
The SC reviewed the scope and a motion was passed to retain the scope as is. A motion to proceed with a
PAR for C57.124 was approved.
19.7 HVDC CONVERTER TRANSFORMERS SC (MIKE SHARP)
A proposal to modify the SC scope to include converter reactors was approved. Activity group details are
included in the full SC meeting minutes.
19.8 INSTRUMENT TRANSFORMERS SC (ROSS MCTAGGART)
C57.13 has been approved by RevCom and should be published soon. The TF on CCVTs has agreed upon a
title and scope and there should be a PAR before the next meeting. There should be a ballot invitation for the
milliamp CT standard soon.
19.9 INSULATING FLUIDS SC (JERRY MURPHY FOR DAVIS WALLACH)
The WG on C57.104 has subgroups meeting on several issues. There was significant discussion related to
work that will result in the consolidation of certain guides.
Page 57 of 57
19.10 INSULATION LIFE SC (SHELDON KENNEDY)
A minor change to the SC scope was approved. A proposal to develop a PAR for a guide related to
temperature measurement was approved. Detailed updates on the progress of activities are contained in the
SC minutes.
19.11 PERFORMANCE CHARACTERISTICS SC (ED TNYENHUIS)
The SC approved a motion to produce a PAR for guide related to short-circuit design criterion. Other details
are contained within the full meeting minutes.
19.12 POWER TRANSFORMERS SC (JOE WATSON)
A TF to review the relationship between V/Hz and excitation was formed. A proposal to proceed with the
development of a joint IEC/IEEE application guide for LTCs. The C57.140 revision is ready for ballot and
the SC approved doing so. A proposal to proceed with a PAR for C57.148 was approved. The SC approved
proceeding with the formation of a TF to investigate revisions to the transportation guide.
20.0 REPORTS FROM STANDARDS SUBCOMMITTEE AND STANDARDS (ISSUES FROM THE WEEK)
Some people have reported problems working with the MyBallot tools and those concerns will be addressed.
Members are encouraged to contact Jim Graham if they have problems.
21.0 NEW BUSINESS
21.1 INTERNATIONAL TRAVEL REQUIREMENTS
A member shared his experience related to travelling internationally to attend IEEE meetings. Greg
Anderson reported that he frequently provides a welcome letter for attendees from certain countries. He
reminded US citizens that a passport will be required to travel to the next meeting in Vancouver. Greg also
advised that passports generally need to be valid for 6-months beyond the arrival date.
22.0 THURSDAY GENERAL SESSION ADJOURNMENT
The meeting was adjourned at 12:00 PM.
ANNEX A Bushings Subcommittee March 23, 2016 Atlanta, Georgia USA
Chair: Peter Zhao was unable to attend, therefore Eric Weatherbee filled in as Chair for this meeting Secretary: Eric Weatherbee, Keith Ellis filled in as Secretary for this meeting
A.1 Opening of the Meeting A.1.1 Introductions
The Chair opened the meeting with group introduction.
A.1.2 Attendance
Membership count was taken with the following results: 27 of 42 members were present with 82 guests, for a total of 109 attendees. There were 8 new membership requests. There was a quorum.
A.1.3 Chairman’s Remarks
The Chair asked for a motion to approve the meeting agenda that was distributed prior to the meeting, a motion was made and seconded with no objections.
The Chair asked for a motion to approve the S15 Memphis minutes that was distributed prior to the meeting, a motion was made and seconded with no objections.
The Chair asked that guest’s take careful consideration before asking for membership in the groups. There were a couple bushings meetings that did not have membership in attendance to have a quorum. Before asking for membership they should be confident in their ability to attend meetings regularly, as their absence can stymie progression of the entire group if a quorum cannot be formed.
The Chair also reminded people to make sure their AM System information is up to date as there were a couple bounced back emails when trying to distribute information to the members.
Six new members were added to the roster and introduced to the SC.
The Chair presented the Standards Status Report for bushings, see Appendix A. It was noted that an extension was granted for PC57.19.04 and that a new PAR was granted for Distribution Bushings, PC57.19.02.
A.2 Working Group and Taskforce reports
A.2.1 C57.19.00-2004 – Keith Ellis, Chair
No Meeting was held. Mr. Ellis informed SC that the review group that was form at the last meeting had only supplied one suggested change for consideration. The Chair asked if there were any further comments or if any of the review group would like more time to complete the task. No comments were received and therefore he asked if there were any objections to setting this task as closed. No objections were made.
A.2.2 WG PC57.19.01-2000 – Dr. Shibao Zhang, Chair; David Wallach, Secretary
See complete minutes in Appendix B of this report.
A.2.3 C57.19.100-2012 – Tommy Spitzer, Chair (not present)
Prior to this meeting Mr. Anthony Natale brought forth an issue he is confronted with quite frequently. There is a contradiction between the Application Guide, C57.19.100-2012 and the General Requirements and Test Standard, C57.19.00-2004. The Guide states that bushings tested per 19.00 are only rated for 55K rise transformer and therefore bushings used in 65K rise transformer need to be derated to account for the difference. However, the Standard 19.00 states that bushings tested per the standard are rated for 65K rise transformers. This causes confusion among the OEMs and their end users. The Chair of the Guide, Mr. Spitzer, provided a statement that was shown to the SC, see Appendix C. In short, Mr. Spitzer stated that the Guide needs to be revised to correlate with the Standard and he will begin working on the next revision to the Guide next year.
Annex A
Page 2 of 18
A.2.4 WG PC57.19.04 – Scott Digby, Chair; JD Brafa, Vice Chair; Secretary, Jim Campbell
See complete minutes in Appendix D of this report.
A.2.5 IEC/IEEE 65700.19.03 – Les Rechsiedler (IEEE) and John Graham (IEC), Co-Chairs
The first dual logo standard was approved June of 2014, as such no meeting was held.
A.2.6 WG PC57.19.02 Distribution Transformer Bushings – Steven Shull, Chair; Ed Smith, Vice Chair
See complete minutes in Appendix E of this report.
A.2.7 TF Composite Bushings – John Graham, Chair; Secretary, Robert Middleton
See complete minutes in Appendix F of this report.
A.3 External Liaison Reports A.3.1 IEC Bushing Standards Activity – John Graham, IEEE Liaison
See complete minutes in Appendix G of this report.
A.3.2 IEEE 693 – Eric Weatherbee, IEEE Liaison
There have been no new meetings or WG correspondence in regards to IEEE 693 as the Recommended Practice is being prepared for Ballot. Mr. Weatherbee had contacted The Chair of 693, Mr. Fujisaki, for any updates to be provided to the SC. Mr. Fujisaki stated that the Ballot is still on schedule for this year and was recently received back from word processing.
A.3.3 WG PC57.160 Guide for PD Meas. in Bushings and Inst. Trans. – Thang Hochanh, Chair
See complete minutes in Appendix H of this report.
A.4 Unfinished Business
A.4.1 Partial discharge in bushings
This issue was raised at the last meeting by a Transformer OEM in regards to PD that can develop during testing at OEM factories which lead to a lengthy discussion amongst the SC. The acting Chair informed the group that upon discussion with The Chair, Mr. Zhao, it was decided that the proper steps would be to pass the issue on to the Dielectrics Test group first which was done prior to this meeting. The Chair also noted that this area of coverage (OEM testing of bushings) is lacking, and this may be a good opportunity to start forming a document. If the Dielectrics and Test group does not wish to handle the issue the Bushing SC will make a decision on how to proceed.
A.5 New Business
There was no new business
A.6 Adjournment 10:10 am
Annex A
Page 3 of 18
Annex A
Page 4 of 18
Annex A
Page 5 of 18
Annex A
Page 6 of 18
Annex A
Page 7 of 18
Annex A, Appendix C
Annex A
Page 8 of 18
Annex A
Page 9 of 18
Annex A
Page 10 of 18
Annex A
Page 11 of 18
Annex A
Page 12 of 18
Annex A
Page 13 of 18
Annex A
Page 14 of 18
Annex A
Page 15 of 18
Annex A
Page 16 of 18
Annex A
Page 17 of 18
Annex A
Page 18 of 18
Page 1 of 15
Annex B Dielectric Tests Subcommittee
March 23, 2016 Atlanta, GA.
Dielectric Tests Subcommittee
Chair: Michael Franchek Vice-Chair: Thang Hochanh Secretary: Ajith M. Varghese
Room : Capitol Ball Room Date : March 23, 2016 Time: 11:00 am to 12:15 pm
Members : 116 Present at time of checking : 77 Present per attendance roster & recorded to AM System: 83
Guests present : 142 Membership requested : 19 Membership accepted: 11
B.1 Chair’s Remarks
The Chair briefly highlighted the requirement that while introducing one need to state their employer/ company and sponsor if difference from company. Chair also reminded that IEEE and transformer committee are non-commercial organizations and standards shall focus only in developing performance and functional requirement and not design and construction details.
The Chair reminded the WG on attendance requirement for new membership and for continuation and the requirement to have attendance updated in AM system. Chair welcomed 15 new member during the meeting. It was also noted that SC roster currently have close to 500 guests and guest list will be reviewed before next meeting and will remove guests from roster who have not been attending the meetings.
The Chair shared details of upcoming PES sponsored meeting as well as details of next transformer committee. PES T&D Expo will be at Dallas from 2016 May 2nd to 5th and next transformer committee will be from October 23-27, 2016 at Vancouver, Canada.
Current Status of PARs was presented.
Chair announced that he will be stepping down from Chairmanship after Atlanta meeting and current secretary, Ajith Varghese has volunteered to take over the chairmanship. Thang Hochanh will remain the vice chair and new secretary will be announced later.
B.2 Quorum, Approval of Minutes and Agenda
The membership list was shown and a show of hands of committee members present showed that a quorum of members were in attendance at the start of the meeting. 77 out of 116 members were present at time of checking, so there was a quorum.
All attendance is recorded in AM System. Per verification of roster 83 members and 142 guests attended the SC at Atlanta.
The minutes of the Fall 2015 meeting at Memphis meeting was approved unanimously. Motion for approval of meeting minutes was made by Kenneth Skinger and seconded by Daniel Sauer.
Annex B
Page 2 of 15
Chair presented agenda for the meeting. A motion to approve agenda for the meeting was made by Daniel Sauer and was seconded by Jack Harley.
B.3 Working Group Reports B.3.1 Working Group on External Dielectric Clearances
Eric Davis, Chair; Troy Tanaka, Secretary The Working Group on External Dielectric Clearances met on Monday March 21, 2016 at 9:30 AM in the Sheraton Atlanta. There were 64 people in attendance; 15 of 18 members, and 49 guests. One guest requested membership, but will not be granted membership based on requirements stated in the Policies and Procedures Manual for Working Groups. A quorum was achieved. The full attendance record is available in the AM System. David Wallace moved that the meeting agenda be approved. Dan Sauer seconded the motion. The agenda was unanimously approved. David Wallace moved that the spring 2015 meeting minutes be approved as written. Dan Sauer seconded the motion. There were no revisions or additions to the minutes. The motion passed unanimously. The discussion began with the description stated in the 6th column of the Table 10. The group agreed to clarify the column by renaming it to state “Minimum Clearance between live parts of different phases of the same voltage”. A majority of the discussion focused on the informative notes in Table 10 and the normative notes beneath it. With regards to informative notes, the WG modified Note 1 to state, “The external clearances given are for transformers intended for operation at altitudes of 1000 m (3300 ft) or less. For operation in excess of 1000 m, please refer to Paragraph 4.3.2.” Note 2 was modified to state, “The above clearances are the minimum required to ensure satisfactory operation considering only the effects of electrical stress.” In addition, Peter Balma moved to relocate the normative note “Transformers at nominal system voltage of 735kV, 765kV, and 110kV are normally single phase so that clearances between live parts of different phases is not an issue” to become informative Note 3. Dan Sauer seconded the motion and the WG unanimously agreed. With regards to Normative notes, the WG modified normative “note a” to start as “Note that…” rather than “It should be noted that...” After some discussion, the WG agreed to keep normative notes “b” and “c” as normative notes. The WG made some editorial comments to the text including modifying the description of Article 1.1 and Table 10 to read “Minimum external clearances of transformer live parts” in order to be consistent with the data in Table 10.
Annex B
Page 3 of 15
After completing discussions about modifications to the text and table, Dave Wallace made a motion to send the revised text and table to the Dielectric Test Subcommittee for approval. Dan Sauer seconded the motion. The WG voted to send the revised text and table to Subcommittee by a vote of twelve (12) to one (1). The chair agreed to make the appropriate changes before sending the document to the subcommittee. The chair thanked the WG for their efforts and asked for a motion to adjourn. Dan Sauer moved to adjourn the meeting. David Wallace seconded and the meeting was adjourned.
B.3.2 WG on Dielectric Frequency Response Analysis (DFR) Ali Naderian, WG Chair; Peter Werelius, Vice Chair, Poorvi Patel, Secretary Monday, March 21st, 2016 – (3:15 -4:30PM) The meeting was called to order by the WG Vice chair Peter Werelius at 3:15 PM. This is the sixth Working group meeting. There were a total of 71 attendees; 19 members and 51 guests and 8 requested to become members. 6 memberships were granted.
1. With 19 members attending the meeting we had a quorum (out of 32 members)
2. Agenda was approved- motion for approval from Subramanian Raman and Diego Robalino
3. The minutes of meeting from the WG Fall 2015 meeting in Memphis, TN, was approved- motion for approval from Daniel Sauer and Michael Franchek.
4. To complete a second version of the draft DFR guide 3 conference calls and one face to face meeting was held to go through all the 160 comments that were received after the first circulation.
5. The PAR is expiring on 31st of December 2017. To reach this deadline the following timeline is targeted.
a) Draft second revision of the DFR guide to be circulated to members and guests for review by April 7th.
b) Members and Guests to submit their review by the 12th of May- (6 weeks)
c) TF chairs to resolve new comments by 30th of June.
d) Ready for voting to submit to ballot by Vancouver in Fall 2016
6. Review of the chapter in the DFR guide by the task force leaders
a) Diego presented the chapter 4- DFR Measurements Overview
b) Chuck presented chapter 5 and 6. Reviewed the changes in tables 3-6 and test record section 6. Comment by Mark to add what to do if you have a core ground shield between the winding. This should be added in the next revision. We may also want to include the influence of windings not measured but in placed in between to other windings under test
c) Peter presented chapter 7- showed cases where higher voltage would be beneficial and also cases that should the influence of stop frequency. Summary and stated in the MEMO is
o DFR test voltage is typical 140 RMS. Higher voltage may be used.
o Stop Frequency range 0.01 Hz to 0.0001 Hz
Annex B
Page 4 of 15
d) George presented Annex A
e) Poorvi presented non-moisture related cases that are presented in Annex B
f) Mario had a presentation on measuring challenges
7. Comments were made if
a) DFR from winding to core ground (UST) may be included - this way the influence of bushings will be taken off
b) DFR in a non-oil filled unit should be mentioned. Doing the DFR on a dry unit (not oil filled) may give better estimation of the moisture.
8. Meeting was adjourned 4.15 pm- motion to adjourn by David Sauer and Mario Locarno.
9. Attendance was recorded in AM system after the meeting.
Ali Naderian, WG Chair- Not present at this meeting Peter Werelius, Vice WG Chair Poorvi Patel, Secretary
B.3.2 Working Group for Revision of the Distribution Impulse Test Guide C57.138 Recommended Practice for Routine Impulse Test of Distribution Transformers; Arthur Molden, Chair; Susmitha Tarlapally, Vice-Chair
Atlanta GA, March 23rd, 2016 Our working group did not meet this time. We have balloted the Draft 3 document and the ballot closed on March 11th. There were 95 balloters signed up, of which 78 responded; a 95% response rate. Of those responses there were 68 affirmatives, 3 negatives and 7 abstentions; a 95% approval rate. We received 75 comments in all and we are currently working on resolution of those comments. Art Molden WG Chair. 3/23/2016 B.3.4 Working Group on Revision of Impulse Tests
Pierre Riffon, Chair; Daniel Sauer, Vice-Chair
The WG met on March 22, 2016, from 4:45 pm to 6:00 pm. Twenty-two (22) members and fifty (51) guests attended the meeting. Five (5) guests requested membership. The meeting was chaired by Pierre Riffon, chair of the WG. Mr. Daniel Sauer was the vice-chair.
Annex B
Page 5 of 15
Attendance has been recorded in the AM system.
Required quorum was not met, presence of at least 23 members was required. The working group membership has been reviewed after the Memphis meeting and members who did not attend the last two meetings were moved as guests.
The WG chair will also clean the guest roster since several of them do not attend anymore WG meetings.
Since the quorum was not met, approval of the Memphis meeting minutes will be postponed to the upcoming meeting in Vancouver, BC, Canada.
The first item of business was related to a survey on the impulse front time test parameters and tolerances. This survey was sent on December, 29, 2015 to the WG membership. Out of 287 individuals who were asked to participate, 70 provided a reply (return rate of 24.4%). Out of these 70, 66 were approved or approved with comments (94.3% approval rate), 3 disapproved and 1 abstained. The negatives were discussed and one was rejected. The two other negatives were excellent comments and were accepted. The reference to the test voltage function described in IEEE Std. 4 will be moved in the main text under clause 10.3.1 "General". A fourth survey with the modified proposal will be sent to the WG and Dielectric test Subcommittee prior to next meeting.
The second item of business was related to a survey on the way that the chopping time during chopped-wave tests is defined and measured. This survey was sent on December, 29, 2015 to the WG membership. Out of 287 individuals who were asked to participate, 63 provided a reply (return rate of 22%). Out of these 63, 58 were approved or approved with comments (92.1% approval rate), 2 disapproved and 3 abstained. The negatives were discussed and were rejected. A second survey with the same wording as surveyed will be sent to the WG and Dielectric Tests Subcommittee membership prior to next meeting.
The third item of business was related to a survey on the instantaneous voltage level at instant of chopping. This survey was sent on December, 29, 2015 to the WG membership. Out of 287 individuals who were asked to participate, 50 provided a reply (return rate of 17.4%). Out of these 50, 37 were approved or approved with comments (74.0% approval rate), 8 disapproved and 5 abstained. The negatives together with the initial proposal and a new modified proposal were discussed. No decisions were taken because of the lack of quorum. The Chair will prepared a modified proposal that will be sent to the WG membership prior to the next meeting.
The meeting adjourned at 6:00 pm on March 22, 2012.
The next meeting is planned to be held in Vancouver, BC, Canada, on October 25, 2016.
Pierre Riffon P. Eng. WG Chair March 22, 2016 .
Annex B
Page 6 of 15
B.3.5 Working Group on Revision of Low Frequency Tests Bertrand Poulin, Chairman; Bill Griesacker, Secretary
Atlanta, GA – March 22, 2016, 1:45 p.m.
1. There were 110 attendees, 25 members and 85 guests present at the meeting; 21 guests requested membership. More than 50 % of the working group members were in attendance at the meeting, therefore a quorum was present.
2. The agenda for the meeting was presented and unanimously approved.
3. A motion was made to approve the minutes from the Fall 2016 meeting in Memphis, TN. The minutes were unanimously approved with no objections or comments voiced.
4. Bertrand Poulan resigned as Chairman of the working group and Bill Griesacker accepted the position of Chairman. Bertrand intends to follow through with the old business items that he started to provide continuity in bringing resolution to these items. The attendees of the working group were offered to volunteer for the positions of Vice-Chair and Secretary; the intent is to have these positions filled by the next meeting.
5. Old business
a. Applying pressure inside a transformer tank during induced test.
Bertrand Poulan reviewed modified text that he prepared as suggested wording to address this issue. A limit of 0.5 psi (3.5 kPa) was offered as a limit based on previous comments requesting a specific limit. It was questioned if it would be better to not allow any artificial adjustment to the pressure, i.e. test at a normal tank pressure. However, based on prior negatives asking for a specific pressure limit, one has now been added.
The recent modifications to the offered text will be surveyed.
b. Tap Changer Position During Induced Test
Bertrand Poulan modified the draft proposal based on the feedback from the survey comments. The new text has several examples for guides. It was debated if the examples should be placed in an annex or left in the text. The examples will be left in the main text based on comments from several European reviewers that were not as familiar with the North American tap changer practice.
The new modified text will be surveyed.
c. Wound core gassing issue on distribution and class 1 transformers: proposed design test.
Phil Hopkinson was not present at the meeting to give a status or present material on this topic.
6. New Business
Annex B
Page 7 of 15
a. Applied test for transformers with high voltage delta windings.
The topic was discussed, including the proposed test circuit. A motion was made to strike the comments referencing the benefit the test lends to partial discharge measurement during the applied voltage test. Note that there was no recommendation or requirement in the text to measure PD. The working group voted to reject this motion. A second motion was made to move the comment on PD during applied voltage test to a note. The working group voted to accept this motion.
b. Dielectric tests in the field. No activity. Mark Perkins will write the details of a motion to generally require field tests on transformers with new insulation to be tested in accordance with C57.12.00 test voltage levels and transformers with other than new insulation to be tested in accordance with C57.12.90 test voltage levels. Background levels for PD can be a problem in the field and will need to be addressed.
c. Induced Voltage Test - Partial Discharge Level is too high.
A request was made by Edgar Trummer to review the partial discharge acceptance level since some of his customers view the IEC 300 pC limit and the IEEE 500 pC limit as unacceptably too high. They strongly suspect that transformers with several hundred pC measured during factory test, but within the standard limit, are more susceptible to premature failures in service.
7. This working Group plans to meet next in October of 2016 at the Fall Transformer Committee meeting to be held in Vancouver, BC.
8. The meeting adjourned at 3:00 p.m.
Annex B
Page 8 of 15
B.3.6 WG - IEEE Guide for the Detection of and Location of Acoustic Emissions from Partial Discharges in Oil-Immersed Power Transformers and Reactors (C57.127) Chair: Detlev Gross Chairs Vice Chair: Jack Harley Secretary: David Larochelle Atlanta, March 21st 2016 Room: Georgia 2,3
Meeting Attendance
The working group met at 11:00 AM. 34 persons were in the room and 14 members were present. Quorum requirement was met. Complete attendance record is available in the AM System.
Discussions
The meeting started with a presentation by Arturo Nunez on the all acoustic system. He mentioned two distinctive methods of covering a power transformer for acoustics. The first method involves a 1 channel detector that is used to periodically map the acoustic activity on the transformer. This method can be used for general surveillance.
The second method uses 12, 24 or more acoustic sensors in order to localize the partial discharge source when having stronger indications of partial discharge. Arturo then presented field test results. Some cases allowed to repair the transformer on site and avoided an unplanned outage. Another case used monitoring over a long period and shown a sharp rise of acoustic activity that lead to a planned outage for inspection that revealed an issue that had to be repaired.
We then proceeded with the assistance count and quorum was obtained. We could approve the current agenda (motion by Michael Franchek, seconded by Aaron Sexton) and the minutes from Memphis (motion by Hemchandra Shertukde seconded by Michael Franchek).
Alexander Golubev made a presentation on acoustic and electrical signal characteristics in the localization process. In the list was the fact that pulse count is not available using acoustic sensors because the ringing of the signal might hide repetition of PD events.
The main topic of the presentation was on the use of coupling capacitor and the effective bandwidth available for the measuring device. A simple R-C circuit cannot be used to calculate the bandwidth provided by the sensors. Parasitic effects will affect the impedance at different frequencies and will make the real bandwidth difficult to predict. The choice of the bandwidth is a compromise between the noise (decreases at higher frequencies) and the coverage of the sensor (low frequencies will be less attenuated over the distance).
After the presentations, we discussed the chapter 5 of the current revision. A comment was made regarding a statement saying that the all-acoustic system does not need voltage or current measurements.
Annex B
Page 9 of 15
While it is true for acquiring acoustic signal, voltage correlation can be of great value for establishing a diagnostic. It was agreed in the group to clarify this sentence and to detail the relation between voltage, current and partial discharge in section 7.4 of the current revision of the guide.
The group will meet again in Vancouver for the fall 2016 meeting.
Adjournment
The meeting was adjourned at 12:15 PM.
David Larochelle
B 3.7 Working Group for PD in bushings, PTs and CTs – PC57.160 WG Secretary: Thomas Sizemore; WG Chair: Thang Hochanh March 21, 2015 at 4:45 – Atlanta, GA Attendees: 50
Members attending: 15/28
Agenda: An agenda was presented for the meeting.
Minutes: Motion approved David Wallace (1st) & Vladimir Khalin (2nd)
1. Items discussed based upon comments received:
• 6.4 Discussed moving the key from this section to earlier in this document. Decided to move it appropriately after reorganization of the document. Likely just before balloting.
• Comment (Shibao Zhang) regarding addition of figure number to resolve comments in 6.4 and 6.5.1 figure 4.a and 4.b. Explanation was provided to clarify text and drawings. Updated version of the draft contained resolution.
• 6.5. 1st paragraph - Clarification on comment regarding calibration. No change was required to resolve the question.
• 7.1 “Casing connection”. New text was accepted to clarify the connection to the primary and ground.
• 7.1 b2 – Comment (Pierre Riffon) regarding the second test object was discussed and proposed text accepted.
Figure 5a and 5b – New test circuit to be provided by Vladimir.
• Incorrect connection fig. 5a and fig. 5b (Pierre Riffon), due to copy and paste action, will be corrected.
• Incorrect connection fig. 7a and fig. 9 (Pierre Riffon), due to copy and paste action, has been updated in draft 5.4 .
Annex B
Page 10 of 15
2. Presentation by Detlev Gross:
Detlev presented several PD patterns and the physical explanation for the partials discharges. Several questions were answered as this presentation was made. The first portion of his presentation was made speaking very generically. The second portion of his presentation was providing a number of specific examples. Numerous comments were made from Thang and Bertrand.
Detlev has agreed to make his presentation available to the attendees and the patterns may be used as part of the guide.
3. Additional discussion after the presentation:
Mario Lucano asked about the value of C2 in section 6.3.1. A short discussion was initiated. The chair will propose a new text to the group at the next meeting.
Fall meeting 2016: This WG plans to continue working at the Vancouver meeting.
Next version of draft: A new draft is being prepared to incorporate all of the recent comments and also to modify the format to match the IEEE style guide.
Date: 2016-03-22
Secretary: Thomas Sizemore
Chairman: Thang Hochanh
B 3.8 Task Force Winding Insulation Power Factor & Winding Insulation Resistance Limits WG Secretary: Diego Robalino; WG Chair: Susmitha Tarlapally March 22nd at 8:00 am – Atlanta, GA Meeting called to order at 8am on Tuesday, March 22nd, 2016 Susmitha Tarlapally (ABB) chair (absent) Diego Robalino (Megger) Secretary – chairing the session Kris Neild and Mario Locarno – acting secretaries Introductions of audience Attendance:
• Total attendees: 62 o From previous meeting 42 attendees
4 requests to become members: Membership granted • Yang, Baitun • Yeboah, Kwasi • DeRouen, Craig • Prince, Jarod
o New attendees 20
Annex B
Page 11 of 15
3 requests to become members: names recorded and will be added after two consecutive meetings attendance
• 26 members out of 44 attended this meeting; quorum has been established • Reviewed agenda, approved motion by Ajith Varghese, second by Subhas Sarkar, passed by vote. • Reviewed minutes from fall 2015 – First TF meeting in Memphis.
o Charles Sweetser gave a description of the proposed database used in C57.104 o Discussion by Baitun Yang (Pennsylvania transformer), and Diego Robalino about when
testing should be done. Just on bushing or on fully assembled transformers. o Minutes from fall 2015 were approved, motion by Subhas Sarkar, second by Mark
Perkins, motion passed.
• Michael Franchek, Dielectrics SC chair talked about the CDA process efforts that should provide
a secure framework for collecting and sharing sensitive data. Confidentiality is a priority.
• Reviewed TF scope
o Scope was modified based on comments from the participants. Diego updated the scope in his presentation. Update to include factory test (acceptance) and field commissioning.
o Title was discussed to determine if it was appropriate for the testing limits being proposed. No changes were made to the title.
o Approved scope, motion by Mark Perkins, second by Ajith Varghese, motion passed by majority vote.
o Updated scope to go to SC meeting for final approval.
o Reviewed table 100.3 from NETA2013 o Reviewed table 100.5 from NETA2013 o More discussion about what is to be measured, just windings or both winding and bushing.
Field commissioning would include the bushing by default. Do we measure CH, CL, CHL? o Question (from Mark Perkins ABB) as to what power factor measurements will be collected,
overall or just individual components at this time such CH, CHL, CL? o Suggestion from Charles Sweetser that perhaps different types of data could be collected,
such as with or without bushings. o Consensus was to see what the data presents should this group go forward.
Annex B
Page 12 of 15
• Proposal – TF Purpose • This was reviewed and the same changes that were made to the scope were also made to the
purpose. Reactors were added to the purpose. • Diego updated the purpose in his presentation. • Approved the changes to the purpose – motion by Mark Perkins, second by Subhas Sarkar,
approved by majority vote.
• Lively debate over the intended use of the term limits, decided that it was premature to discuss
before the task force accomplishes its goal. • Data collection chart to be sent out for comments. • Made changes to the scope based on the changes that were made to the purpose. These changes
included adding reactors and adding power and distribution transformers. • Re-approve the scope - Motion by Mark Perkins, second by Kirk Robbins, passed by majority
vote. • Discussion on what data is to be collected in the database. Template was reviewed and will be
sent to all members. • Presentation from Member Mr. Subhas Sarkar regarding PF/IR was shown. Material deemed info
only, and the meeting came to end without enough time to discuss the presentation.
Review of volunteers. Lorne Gara added his name to the list of volunteers Motion to adjourn by M. Locarno, second by P. Patel, approved by majority vote Meeting adjourned at 9:19 am. NEW SCOPE APPROVED BY SC DIELECTRICS @11:32 WEDNESDAY 23TH, 2016
Annex B
Page 13 of 15
B.4 Liaison Reports
B.4.1 Voltage Test Techniques (HVTT), IEEE Standard 4 - Arthur Molden
The Working Group of High Voltage Test Techniques (HVTT) Subcommittee met in conjunction with the IEEE PES, Joint Technical Committee Meeting at Memphis, TN on January 13th, 2016. There were 5 members and 2 guests present.
New and exciting projects discussed were:
Revision of IEEE 1122 Standard for Digital Recorders for Measurements in High-Voltage Impulse Tests. The PAR for this project has been approved
Revision of the 1983 edition of IEEE 510, IEEE Recommended Practices for Safety in High-Voltage and High-Power Testing. In preliminary stages of discussion. Par not yet applied for.
Application guide (tutorials) for IEEE Standard 4.
i. Practical examples on impulse waveform evaluation
ii. Practical examples on uncertainty analysis
iii. Practical examples for creating / maintaining a Record of Performance
This work will necessitate formation of Task Force teams to focus on the various aspects of the revision and tutorial work.
Standard 4 Advisory Group. It was moved and approved at the last meeting of Dielectric tests, that a Standard 4 Advisory Group be formed and hold regular meetings during the Transformers Committee Meetings. The meetings would be used to make tutorial presentations on such subjects as are listed in the aforementioned Application guides.
The Standard 4 Working Group are actively soliciting members. Should anyone be interested in joining the Working Group or Task Force members, please contact Jim McBride or myself for details.
The next HVTT WG meeting will be at the Fall Switchgear Meeting at Pittsburg PA, October 9th to 14th, 2016.
END
A. Molden 3/23/2016
Annex B
Page 14 of 15
B.5 Discussions
• WG on external clearance reported that their work is ready to survey. Modified section will include phase to ground clearance in-addition to phase to phase clearance. A motion to survey modified text and table in subcommittee was moved by Eric and seconded by Phil Hopkinson. Motion was passed unanimously.
• As a follow up of motion passed in Task force meeting on Insulation Power factor and insulation resistances, scope of Task force presented the defined scope to sub-committee. Motion was moved by Diego Robalino and was seconded by Peter Werelius. The motion was approved unanimously. The approved scope of Task Force will be.
Review and determine if factory acceptance and/or field commissioning limits can be established for winding insulation power factor and insulation resistance for power and distribution transformers and reactors that includes both mineral oil and alternate liquids
B.6 Old Business
Chair presented the results of survey on revised text of subcommittee scope for transformer committee O& P manual which was surveyed.
Survey results Returned – 30 (25.4%) Affirmative – 27 (90.0%) Negative – 3 (10%)
Chair presented the revised text which incorporated editorial comments from survey. Below is the revised text as presented.
The Dielectric Tests Subcommittee shall be responsible for the following:
a. Studying, reviewing and establishing the test requirements necessary to determine that dielectric withstand capabilities are met for liquid immersed transformers and reactors, under normal and transient conditions.
b. Developing and maintaining related standards, recommended practices, and guides for such criteria
c. Coordinating with other technical committees, groups, societies, and associations as required
Annex B
Page 15 of 15
Motion to approve revised text as presented was moved by Bertrand Paulin and seconded by Kenneth Stinger.
Joe Watson commented to include the wording “service requirement”. Jeff Britton wanted to know if dry type transformer was included which was clarified as out of scope.
Motion was passed as presented with all supporting except 1 voting against.
B.7 New Business Phil Hopkinson brought a new item for discussion regarding effect of High frequency transient from breaker operation on transformer. Per Phil, Circuit Breaker size/capacity has increased over the year and effect of transients under these conditions are not fully understood and wanted to re-introduce Steep Wave (Front- of – Wave) testing during final acceptance test as way to mitigate transformer failures due to these transients. Discussion the followed questioned Front of wave as effective test to transient seen under these condition. Detlev noted that waveform under circuit breaker operation is different and have high frequency transients which is different from Front of wave. Dave Geibel pointed out that issues should be addressed to prevent fast transients from reaching the transformer than protecting the transformer under these condition. Bertrand Paulin noted that there is already a task force led by Jim McBride dealing with switching transient and suggested to expand the scope of TF to include this topic. Jim Graham clarified that, it is okay for DTSC to request Performance Characteristics SC to expand the scope of TF to include this topic. After discussions a motion was passed to request Performance characteristic subcommittee to expand the scope of “ TF of Switching transients induced by transformer-Breaker interaction PC57.142 chaired by Jim McBride” to expand the scope to include “ Investigate effect of high frequency transient on transformer and identify mitigation which may including additional factory testing or prevent transients from reaching unit “ . Motion was moved by Phil Hopkinson and seconded by Craig Stiegemeier. Motion was approved unanimously.
B.8 Adjournment
Meeting adjourned 12.05 PM.
Minutes respectfully submitted by: Ajith M. Varghese Secretary DTSC.
Page 1 of 11
Annex C Distribution Subcommittee – Chair: Stephen Shull
March 4, 2015 Atlanta, GA
Chair: Stephen Shull Vice-Chair: Jerry Murphy
C.1 General Opening
Steve opened the meeting welcoming everyone to the meeting. Jerry circulated the rosters. To establish a quorum, a list of members were displayed and a count of was made. We did have a quorum with 35 of the 42 members in attendance by count of those identified on a slide presented in the meeting. Recorded attendance gave 135 in attendance, 36 members and 23 requesting membership.
The agenda was reviewed and motion made by Dan Sauer, seconded by Ron Stahara and approved by unanimous acclamation of the members in attendance.
The Spring 2015 meeting minutes were reviewed and motion made by Dan Sauer, seconded by Sanjib Som and approved by unanimous acclamation of the members in attendance.
C.2 Working Group and Task Force Reports
C.2.1 C57.15/IEC 60076-21 – Step-Voltage Regulators – Craig Colopy
Craig presented the following minutes from the working group meeting on March 21, 2016 at 4:45 p.m. with 48 people in attendance. 1. Meeting was called to order at 4:45 pm, 21 March 2016. 2. Check for Quorum made first: 35 Members listed on the roster, meaning 18 needed for
quorum. There were 27 Members were available for the meeting. 3. Agenda of this meeting was accepted and passed. Dan Sauer made the Motion and
Second by Steve Shull. Motion carried. 4. Minutes of the last meetings the two day work session and the scheduled summary at the
Fall IEEE Transformer Meeting in Memphis were accepted and approved. Dan Sauer made the motion and Martin Rave seconded. Motion carried.
5. The Chairman advised the group on the reasons behind having drafts 1.2 through 1.5 dating back to the work session in Memphis, relating to the interactions between creating duplicate drafts using different formats from the IEEE and IEC processes.
6. Draft 1.5 was submitted as a CD to the IEC community for a 3 – month review. Comments will be made available after April 8th.
7. A balanced IEEE ballot pool was established and a MEC review completed on Draft 1.5. 8. Due to the number of technical comments received in March from the Working Group it
was decided to delay submitting draft 1.5 to the IEEE ballot pool. 9. Some of the technical comments were discussed with decisions. The following is a
synopsis of those discussions: Clause 10.3.2. discussion on the interface connector using the MIL 5015 shell and pin design included a proposed change reducing the size and number of pins from 20 to 19. Suggestion was noted and accepted by the WG.
Annex C
Page 2 of 11
Clause 10.3.2. Figure 24 – during the discussion it was noted the drawing can be made more clear on the location of the universal interface which is only provided when specified by Purchaser. Location of the interface is at the bottom of a junction box located on the cover or at the bottom of an auxiliary box located between the cover and the control enclosure. The Working group agreed with this response. Clause 8.6.5 and 8.6.6 – The WG Agreed with that the recommendation for the induced voltage test to be performed at the 15 Raise position. For the High Pot, Megger, and Power Factor Tests, the Working Group agreed specifying a specific tap for the test to be performed was not required. A Note will be added to clarify this so users are made aware. Clause 5.3 – the WG agreed to leave the maximum value of Add Amp at 668 Amps. Note to be added: in the add amp ( ) section will allow but has to be worked out between the manufacturer and the users. Working group agreed to place at the end of Annex E a Figure indicating stages of life regarding the moveable and stationary contacts. Clause 5.4, Page 19 Line 18 – the WG agreed to leave the paragraph as is stating the minimum amount of regulation in the extreme Raise position is 10%. Clause 10.5.1.7.3 Page 117 Line 2 & 3 – WG agreed to resolve minimum value of bandwith and time delay range discrepancy between 10.5.1.7.3 and 10.2.1. WG agreed to change Bandwidth range in 10.2.1 to 1 – 6 and changing Time Delay range in 10.2.1 to 5 – 120. The WG agreed to add a note indicating if a minimum value of 5 sec is not available, the minimum value of a specific control is acceptable. Clause 3 Page 7 Line 4 – the comment was to delete definition “reactor”. And add a definition for “bridging reactor” Reject proposal: Reactor does not have to be in a bridging position to be preventive when equalizer windings are used. The term reactor and Preventive autotransformer are referred to together in the load tap changer standards, C57.131 and 60214-1 and preference is to be consistent with them. The WG agrees with the comment rejection. Clause 5.2 Table 4 – The comment suggested that for 33kV rated to meet a maximum system voltage of 36kV, BIL should be 200kV see Table 3 for example. The discussion noted that From IEC 60076-3: Highest Voltage for equipment winding Um 36 kV, The Full Wave Lightning Impulse 170 kV 200a - - a These values are not given in IEC 60071-1:2011 for the particular value of Um but are included either because they represent common practice in some parts of the world or for some switching impulse levels, because they represent a coordinated value for a particular value of lightning impulse level. The WG Agreed to leave BIL as is t=for 33 kV 50 Hz ratings Table 2 footnote a - the comment was to remove the “experience and general acceptance, or an accepted test”. The WG agreed that the sentence be changed to: “Apparatus with specified temperature rise shall have an insulation system proven to possess minimum aging characteristics, by an accepted test.” Clause 6.2.2 – the comment was to change the term “Sudden Pressure Relay” to something else. The WG agrees with verbiage as currently written.
Annex C
Page 3 of 11
Clause 6.2.1 – The comment noted the sudden pressure relay pressure change was incorrectly stated and this will be corrected to 0.5 psi/s to 3.0psi/s. this was incorrectly stated in draft 1.5. WG Agrees to correction. Clause 8.8.3.2 – Comment was made to limit the maximum value of symmetrical current as the value of symmetrical current is raised to reach the required asymmetrical peak to offset difficulty in obtaining the asymmetrical peak due to the X/R ratio of the tested voltage regulator. The WG disagreed: As long as the asymmetrical requirement is not exceeded, the value of the symmetrical current is moot. WG agrees leave it as is. 10. Draft 2.0 will be created to include resolved technical and editorial comments from the
WG. Resolved IEC CD comments will be included in this draft. 11. Next IEEE Transformer Committee WG meeting— Oct 23-27, 2016 in Vancouver BC.
Meeting schedule to include a full day pre-session and the normal Monday afternoon session.
12 Comments not fully discussed will be addressed with WG by way of emails and Web conferences.
13. IEEE Ballot process will be delayed until an acceptable draft is completed. This Draft 2.0 will be used to create a new CD to be reviewed by IEC community. A total of 6-months is allowed from completion of ballot pool creation and ballot submission.
12. Said Hachichi moved for adjournment - second by Fred Friend – motion was unanimous. Submitted by: Gael R Kennedy/Craig A Colopy Date: 03/21/2016
C.2.2 C57.12.20 – Overhead Distribution Transformers – Al Traut
Al presented the following minutes from the working group meeting on March 21, 2016 at 11:00 a.m. with 68 in attendance.
Quorum established with 26 of 33 members present.
Motion to approve agenda as submitted (Ron Stahara made /Said Hachichi seconded) and it was unanimously approved.
Motion to approve F15 Memphis meeting minutes (Ron Stahara made /Marty Rave seconded) and it was unanimously approved.
Al reminded that the ballot of the standard closes on 4/8/2016 and currently has 50% response rate. Al reminded that a 75% response rated is needed to be considered for approval.
The Working Group proceeded to review ballot comments received to date.
The first was the footnote “a” on Table 12. Since this was just informative a suggestion by Steve Shull was to make “footnote a” to just “note” to be included in the table which would indeed be informative. As well, for consistency of the table, Rhett Chrysler suggested to the removal the “%” symbol from the column entries but leave it in the column heading.
The second was on Clause 7.5.3. It was suggested by Al Traut to reject this comment regarding C57.12.31 as it is ambiguous. D. Mulkey suggested re-wording clause 7.5.3 to make it clearer as to the meaning as it applied in this standard. Dan suggested the following change.
7.5.3 Tank and finish
Annex C
Page 4 of 11
Tank and finish shall conform to C57.12.31. Unless otherwise specified, the tank finish shall conform to Light Gray Number 70, Munsell Notation 5BG 7.0/0.4.
Motion was made by Steve Shull and seconded by Ron Stahara to accept the re-wording of this clause. This motion passed unanimously.
The third concerned the labeling of delta connected transformers shown in Table 4. The comment stated that the note on delta connected units was not clear as to which ratings are delta connected. Rhett Chrysler mentions that other standards use the delta symbol. Steve Shull recommended using the delta symbol where appropriate. A motion was made by Rhet Chrysler and Saidi Hachichi to drop the note in Table 4 and insert the delta symbol on the applicable ratings. Motion carried unanimously.
The third concerned Article 4.1. R. Marek submitted a negative ballot because he request the change of Article 4.1 and include as a normative reference C57.154. The current wording was as follows:
4. Ratings 4.1 Kilovolt-ampere ratings Kilovolt-ampere ratings are continuous and are based on not exceeding either a 65°C average winding temperature rise or an 80°C hottest-spot temperature rise. The temperature rise of the insulating liquid shall not exceed 65°C when measured near the top of the tank. Kilovolt-ampere ratings for single-phase and three-phase transformers shall be as shown in Table1. These ratings are based on the usual temperature and altitude service conditions specified in IEEE Std C57.12.00.
And the proposed wording change and addition to the normative references as follows:
4. Ratings 4.1 Kilovolt-ampere ratings Kilovolt-ampere ratings are continuous for an insulation system thermal class of 120 as defined in IEEE Std C57.154 and are based on not exceeding either a 65°C average winding temperature rise or an 80°C hottest-spot temperature rise. The temperature rise of the insulating liquid shall not exceed 65°C when measured near the top of the tank. Kilovolt-ampere ratings for single-phase and three-phase transformers shall be as shown in Table1. These ratings are based on the usual temperature and altitude service conditions specified in IEEE Std C57.12.00.
With the addition the Normative references: IEEE Std C57.154, IEEE Standard for the Design, Testing, and Application of Liquid-Immersed Distribution, Power, and Regulating Transformers Using High-Temperature Insulation Systems and Operating at Elevated Temperature
Alan Wilkes mentions that the conductor materials (magnet wire) are rated at 105°C. The 120 class is for a 110°C hot spot. Carlos mentions that the 120 class is not mentioned in C57.12.80. Steve Shull motioned to reject the comment until all the references align on the insulation level as stated in C57.154. Ron Stahara seconded this motion and it passed with one rejection.
Rhett Chrysler comments that Article 7.2.6 would be more appropriate in 7.5.3. Dan Mulkey stated that those clauses are discussing two different types of integrity. No motion was made and based on the discussion Al Traut stated the article would be left as written.
Josh Verdin suggests a note referencing the main breaker size used in the calculation in the Table 12 so that it would be more clear in understanding the method that was used to determine the minimum percent impedance. His concern stemmed from end-user safety concerns. After some discussion by the group, no real conclusion was reached. Al Traut stated that this would
Annex C
Page 5 of 11
be left as it is currently shown because of the complexity of the issue and the time crunch we are currently under to publish this standard. He suggested that this might be considered in the next revision.
Next meeting will be held October 23-27 in Vancouver, British Columbia, Canada.
The meeting was adjourned at 12:00pm, Kendrick Hamilton recording.
C.2.3 C57.12.28, C57.12.29, C57.12.30, C57.12.31, C57.12.32 – Enclosure Integrity – Dan Mulkey
Dan Mulkey presented the following minutes from the working group meeting on March 22, 2016 at 8:00 a.m. in with 47 in attendance. Introductions were made and a call for quorum showed 25 of the 38 WG members were in attendance giving quorum. Note that the full attendance list is recorded and available in the Association Management System.
The Fall 2015 meeting minutes were reviewed by the WG and with no further discussion the minutes of the was unanimously approved.
C57.12.32 IEEE Standard for Submersible Equipment – Enclosure Integrity is active, last published in 2003, and reaffirmed in 2008, and due for revision by 2018.
Reports from the assignments given at the Fall 2015 meeting were presented.
1. Carlos Gaytan looked for IEC and other standards for testing of submersible transformers. Carlos reported the RODE documents referred to other standards and he found two covering the subject.
a. NEMA 205-2003 b. IEC 60529
Carlos’ presentation will be posted to the website.
2. Jeremy Van Horn gave a presentation on the proposed definition of “submersible” for this standard. Already defined in C57.12.80, but not defined by RODE and there are no normative definitions like IEC 60529. Jeremy provided a listing of the standards relating to submersible with definitions including standards relating to service conditions and design tests.
Discussion followed concerning design leak tests with a motion by Giuseppe Termini, seconded by Said Hachichi to set submersion of 3 meters (9’-10”) to the top of the tank with a footnote that connections are only tested at 6’. Motion carried by unanimous acclamation.
Further discussion followed to set criteria for design leak testing with a motion to include the following:
a. Talc or chalk dust to be applied to provide ready identification of leaks b. Minimum of 24 hours submersed c. Tank pressurized to 10 psig d. Then reverse the components and test again.
Question was asked if the production test didn’t already provide this evidence. There was a preference to test the fully assembled unit. Giuseppe Termini seconded the motion and a call of the question passed the motion with 15 in favor, 3 opposed and 4 abstaining.
3. Rebecca Giang with Sherwin-Williams presented information regarding the FS-40 bulb used for ultraviolet testing per ASTM D4587-01.
Annex C
Page 6 of 11
a. Rebecca’s report will be posted on the website.
Next meeting will be held October 23-27 in Vancouver, British Columbia, Canada.
Time was expiring and Dan adjourned the meeting at 9:15am, Jerry Murphy recording.
C57.12.34 – Three Phase Padmount Transformers – Ron Stahara
Ron Stahara presented the following minutes from the working group meeting on March 21, 2016 at 3:15 p.m. with 75 in attendance.
Ron Stahara called the meeting to order and introductions were made. The rosters were circulated. The complete detail of attendance is recorded in the AM system. To establish a quorum, a members list was displayed on the screen and those who saw their names were asked to hold up their hand. From this count of hands, it was determined that a quorum was established. A motion was made by Ali Ghafourian and seconded by Alan Wilks to accept the agenda as shown. The motion was passed unanimously. The minutes of the Fall 2015 meeting were accepted as written by acclamation.
A quick review was conducted of the questions that were raised after the ballot or had been suggested in the balloting process. These were discussed as follows:
1 All standard references will be updated in the new document.
2 There were some concerns on the drawings on whether the low voltage bushing dimensions were carried forward from the earlier documents. Steve Shull showed that these were actually contained in the document and in particular on the specific dimensions drawings. Gary King asked that we verify that these were carried forward on the minimum dimension drawings as well.
3 There was a concern about accessing items on the transformer such as sight gauges, sampling valves, etc. in a compartment where an arc fault hazard exists. It was also mentioned that there were some instances where non-qualified individuals were asked to check a function or obtain an oil sample. Because of this a different compartment or area was requested to house these items. To reaffirm this thought, Adam Bromley stated that his company had considered requiring that the primary compartment contain these items because the fault current in his company’s system was lower in this area than on the secondary side. There was some thought on the placement of a guide on the Arc Fault issue in an annex but it was abandoned due the complexity as well it pointed out that this subject was covered in NFPA 70E. Mike Thibault commented that this was really an operational issue and didn’t really belong in this standard. The conclusion was that we should address the concern about accessing items such as sight gauges, sampling valves, etc. in a compartment or protected access area.
4 Dwight Parkinson asked that we review Figure 9 since there was a grayed out area for bushing height. Since the revision of IEEE 386 he felt that these could be filled out. Carlos Gaytan agreed in that he felt we needed to address any additions in the recently published IEEE 386. He also would like us to careful review the figures in this standard which could include a 200kV BIL dead-front interface and any new figures that had been added to clarify 600A and 900A interfaces statements in our standard.
5 Ron Stahara asked that this group address balanced lifting using the lifting lugs on the transformer. Jerry Murphy agreed since he is required to provide a lifting plan
Annex C
Page 7 of 11
when moving these units and this would help in its preparation. Alex Macias agreed with Jerry on this point.
After this discussed, the working group agreed that we need to proceed forward with a new PAR to address these issues. A motion was made to do this by Jerry Murphy and seconded by Marty Rave. The motion was passed unanimously. Steve Shull committed to getting this accomplished by the next meeting.
Next meeting will be held October 23-27 in Vancouver, British Columbia, Canada.
With this, the meeting was adjourned, Stephen Shull recording.
C.2.4 C57.12.36 – Distribution Substation Transformers – Jerry Murphy
Jerry reported the working group met Tuesday, March 22, 2016 at 1:45pm with 38 people in attendance.
Jerry Murphy called the meeting to order at 1:45 PM. Introductions were made. The names of the members were projected on the screen. By a show of hands the quorum was reached by having 14 out of the 17 members present. Gael Kennedy made a motion approve the minutes of the last meeting in Memphis; Steve Shull seconded, and the motion was approved.
Jerry mentioned that there were 3 comments that were pending to be resolved from the ballot of draft 4, and proceeded to review them. The first comment resolved was related with section 5.10.4, Tank base. Comment was about use or terms pad or foundation. After some discussion Gary Hoffman moved to reject the comment, since the proposed change was not of substantive nature. Steve Shull seconded and the motion was approved. Next comment was related to section 3.2, Liquid definition. Several definitions were reviewed such as liquid-immersed, insulating liquid and others. The group considered that the proposed change did not add significant additional information to the current definition. Gary Hoffman moved to reject the comment, Steve Shull seconded and the motion was approved.
The last comment was related with section 5.1.7, Pressure relief. After a long discussion, a motion was made by Wally Binder, seconded by Steve Shull, to eliminate the text below the line of venting and sealing characteristics, and substitute with making reference to PC57.12.39. Gary Hoffman made a friendly amendment to modify the text to include a proper reference. Wally and Steve accepted the amendment. Gael Kennedy made a 2nd friendly amendment to eliminate the first part of the text below the first line of 5.1.7. Wally and Steve accepted the 2nd amendment. Steve Shull called for the question, and the motion was approved.
Next meeting will be held October 23-27 in Vancouver, British Columbia, Canada.
Jerry informed that with all the comments resolved, he would next go for a recirculation ballot.
The meeting adjourned at 2:50 pm., Carlos Gaytan recording.
C.2.5 C57.12.37 – Test Data Reporting – Tom Callsen
This working group did not meet as planned.
C.2.6 C57.12.38 – Single Phase Padmount Transformers – Alan Wilks
Mike Faulkenberry presented the following minutes from the working group meeting on March 21, 2016 at 1:45 p.m. with 52 in attendance. The meeting was called to order by Ali Ghafourian at 1:45 p.m.
Annex C
Page 8 of 11
Twenty-four of thirty-one working group members were present which met the requirements for having a quorum.
The working group members were asked if there were any changes or corrections to the minutes from the Fall of 2015 meeting, and none were offered. Ron Stahara motioned for the minutes to be approved, and it was seconded by Justin Pezzin. The vote was unanimous in favor of the motion.
The status of the PAR was discussed. A ballot pool is currently being formed for vote on Corrigenda 1 which corrects an error in Figure 1. Until that corrigenda has been approved for publication, a request for a new PAR will not be submitted. But we still can and will be working on the document until then.
Comments from the ballot that were not included in the currently published document were presented for consideration in the next revision. The first topic was for a definition of “small interface.” Mike Faulkenberry is on the working group for the next revision of IEEE 386 and stated that the “small interface” and “large interface” terminology is not in the upcoming revision. Instead, the interfaces are given numbers. Once 386 is published, we will reference the appropriate interface numbers.
The other ballot comment that will be included is the change from “oil” to “liquid” throughout the document. There was no further discussion on that addition.
Ali then presented items from the previous meeting mentioned as possible items to be addressed in the next revision:
• Definition of “Permanent Deformation” – A good bit of discussion about this took place. Ali mentioned that you cannot get zero deformation and asked, so what is acceptable? Do we not want to say something more than “no permanent deformation?” Ron Stahara suggested that if it passes, even with permanent deformation, but has no safety issues or leaking, is that a problem? After some discussion, Ali stated that we do not have to change it but instructed the working group members to think about it for further discussions.
• Dual Voltage Ratings – These were in the standard previously, and Ali asked if the working group wanted to add them back to the standard. After some discussion, no one knows for sure why it was removed from the standard. It was suggested that it may have been because of the difficulty in knowing for which voltage to fuse it for shipping. Ali suggested that we write something for inclusion in the next draft that we will discuss. It was also suggested that this might best be put in an informative annex.
• Add Minimum Impedances – Ali stated that we would wait for Al Traut to finish this addition in C57.12.20, and then we could use those minimum impedances in our document. No further discussion took place.
• Clarifying Note 2 on the figures to define the distance between the front plate and the closest sill projection – Ali asked for members to provide comments for further discussion as to why that is there.
• Add Commonly Used Components – This includes bayonet fuses, oil gauges, arresters, etc. It was mentioned that we have previously said we do not want to include such items in the document. There was a lot of discussion on the oil gauge for determining there was enough oil to operate bayonet fuses or switches and where exactly that should be located. Do we need to specify that? Steve Shull suggested that if we wanted to address the components, it may best be done in an informative annex. Further discussion will be held on this topic.
Annex C
Page 9 of 11
• Increasing Tilt Angle for HV Bushings in Type 2 Configurations for Ease of Operation – After discussion, it was determined that there were too many variables to correctly select the proper angle. No changes are suggested at this time.
• LV Bushing Cantilever Strength – Steve Shull says this will be covered by new C57.19.02 and invited participation in the upcoming meeting for this working group.
Next meeting will be held October 23-27 in Vancouver, British Columbia, Canada.
A motion to adjourn was made by Ron Stahara and seconded by Kent Miller.
Submitted by Mike Faulkenberry.
C.2.7 C57.12.39 – Tank Pressure Coordination – Carlos Gaytan
Carlos reported the working group met Tuesday afternoon at 4:45 p.m. with 43 in attendance. The meeting was called to order at 4:45 PM. Introductions were made; the names of the members were projected on the screen. By a show of hands the quorum was reached by having 19 of the 32 members present. By the end of the meeting the member count was 22. The agenda was presented. A motion for approval was made by Alan Wilks, seconded by Ron Stahara. The motion was approved. A motion to approve the minutes of the fall 2015 meeting was made by Stahara, seconded by Steve Shull. The motion was approved.
On the chair report, Carlos informed that the PAR would expire in Dec. 2016, and the plan to request a 1 year extension at the June 2016 Standards Board Meeting.
On old business, a review of comments from MEC was presented. A few changes resulted, based on style manual, adding of abstract and keywords; changes in use of words such as “Minimize” to “Reduce”, “should, shall, may, must”¸ use of absolute language: damage, safe, shock; all per MEC recommendations. Flow chart on Annex A was updated correcting references to document. There were no comments from the working group. Steve Shull indicated that a vote is not required for these edits.
Then the ballot status was reviewed. The Invitation started 07-Mar-2016; will close on 06-Apr-2016. Carlos mentioned that the Ballot Comment Resolution Committee that was formed in the fall 2015 meeting would be engaged as soon as the comments from the ballot were completed by June. This was with the intent of completing the comment resolution process prior to the Vancouver meeting, where the results would be presented.
The next WG meeting will be in Vancouver, BC, Canada, in October 23-27.
Ron Stahara made a motion to adjourn; Said Hachichi seconded. The meeting adjourned at 5:10 pm, Justin Pezzin recording.
Carlos concluded his report saying he would be requesting a one year PAR extension.
C.3 Old Business
• None
Annex C
Page 10 of 11
C.4 New Business
• Steve Shull informed the subcommittee an update on DOE activity.
1. DOE Transformer "minimum efficiency standards" (MES) are up for the "5-year" visit.
2. Hearings to review the residential and smaller transformer data are planned.
3. It is be supportive or at variance with data from some that indicated 39% was the "average loading" over 1 year which is lower than the current standard.
4. DOE indicates that hearings are planned to be completed by "2019, to be effective January 1, 2022".
5. Also, there are efforts to expand Distribution Transformer MES from current 2,500 kVA to 10,000 kVA sizes.
6. It would be extremely helpful to have loading data on some higher kVA's, as several sources indicate they tend to be more highly loaded.
Currently we have an inactive task force that is focused on DOE Rule Making which is targeted toward Distribution Transformers. We are reactivating this task force. Phillip Hopkinson is the Chair of this group and Ned Brush is now named as Vice Chair. Since this has been inactive for a while, we will open up the task force membership.
Objective: Determine RMS-Equivalent loading and patterns of loading for Distribution Transformers Purposes:
a. Optimization of Energy efficiency considerations b. Improved thermal life considerations and realistic life extrapolation
Variables for consideration:
a. Power ratings from 10 kVA single phase to 10 MVA 3 phase b. Voltage classes c. Customer applications including general purpose, residential, industrial,
commercial, & renewable power d. Geographical locations
Interested Parties: Manufacturers, users, DOE, and consultants and other dependent standards Mechanics:
a. Establish compatible EXCEL file format for data reporting b. Establish test years for proper data comparison c. Using load profile data to develop the data d. Use the neutral clearing house of EEI for collection of the data
Milestones: a. The task force will be organized at this meeting by the signup sheets which are
located at the front. b. The Task Force will establish the final data format by Task Force meeting via
Web/Conference call.
Annex C
Page 11 of 11
c. Data collection by Fall ,2016 d. First report by Spring, 2017 e. First pass at documentation by Fall, 2017
The following example data set was presented.
• Phil Hopkinson presented a need to reinstitute the steep front wave test on as vacuum breakers are increasing in interrupting rating that he believes is causing increased failures due to the interaction of transformers and vacuum breakers. Phil asked the members to consider specifying a shield to increase the transformer capacitance to mitigate these failures.
C.5 Chairman’s Closing Remarks and Announcements
Steve had no closing comments to the SC except to see them in Vancouver in the fall.
C.6 Adjournment
Steve adjourned the meeting as provided in the meeting agenda at 10:28am.
Page 1 of 13
Annex D Dry Type Transformers Subcommittee
March 23, 2016 Atlanta Georgia
Chair: Charles Johnson Secretary: Casey Ballard
D.1 Introductions and Approval of Agenda and Minutes The Subcommittee met on March 23, 2016 at 1:32 PM in the Atlanta 4,5 Room of the Sheraton Atlanta Hotel. There were 18 of 26 members present (therefore we had a quorum of 69%), and 18 guests present, 6 guests requested membership. The attendance roster will be kept in the AMS. The agenda was approved unanimously after a motion from Sanjib Som and a second from Martin Navarro. The minutes of the Memphis, Tennessee meeting were approved unanimously after a motion from Roger Wicks and a second from Mike Sharp.
D.2 Working Group/Task Force Reports The next order of business was the presentation of the reports of the various working groups and task forces. See the following sections for the individual reports:
D.2.1 IEEE PC57.12.01 - Dry Type General Requirements Chair Casey Ballard
The working group met in the Georgia 4,5 Rooms of the Sheraton Atlanta Hotel The meeting was called to order at 1:17 PM by Chairman Casey Ballard The meeting was convened with 19 members (out of 28 – therefore a quorum was reached with 68% attending) and 30 guests present with 5 guests requesting membership. The attendance was reported in the AMS. Introductions were made by all participants The agenda was approved unanimously being no negative votes. The minutes of the Memphis, TN, November 2, 2015 meeting were approved unanimously being no negative votes Old business
- The chair talked through a list of suggested topics from TF members and agreed to provide both the presentation and a red lined version of 12.01 before the next meeting.
o Definitions Section on no load losses – standard requires no load loss tests to be performed on cores with top yoke temperatures under 40°C but does not give method to correct core losses if above 40°C Does correction belong in 12.01 or 12.91- will be decided by subcommittee Proposal is to use equation from 12.00 using top yoke instead of top oil Concerns were voiced that core may still be hot when tested and how this would
impact the stabilization of cold resistance measurements for the windings
Annex D
Page 2 of 13
o Maximum altitude Sections 4.2.4 and 4.2.5– no comments to the proposal o Service Conditions Section 4.2.6i– Rick Marek to provide wording for first revision
document o Rated Power Wording Section 5.4.1– no comments to the proposal o Rated Voltage Wording Section 5.5.2– no comments to the proposal o Thermal Protection Section 5.11.3 from Phil Hopkinson
Suggested we needed a method that would be equivalent to IEC 60076-11 F0/F1 rating
Rick Marek pointed out that test was to determine how much energy a transformer would add to a fire – not if the transformer would catch on fire due to an internal fault
Phil conceded that they were different and removed the proposal o Standard BIL Ratings Table 5
Discussion focused on moving 15kV from 60 to 95 BIL, but grew to include 8.7kV class, 601V class and eventually the entire table
Chuck Johnson proposed to make 95kV BIL the standard for 15kV while still allowing a customer to specify 60 or 75kV BIL. This was proposed to match the standard levels for distribution liquid immersed transformers.
Phil Hopkinson added that increasing BIL may help with fast transients but coordination studies are still required
• Sanjib Som did not support increasing BIL to address transient issues since these should be prevented to reach the transformer by using suitable suppressors.
The proposal was tabled and the chair will send out an email ballot as to whether the members would like to address this issue or not
o Extended Sound Measurement – proposal to add sound measurements after 6 hours on no load and for multiple windings stacked vertically Chair commented that this belongs in 12.91 for definition before adding it to 12.01
and Sanjib agreed o Ambient Temperature Section 4.1.2 – Sasha Levin proposed to use the 30 day average
method from IEC instead of the 24 hour average used by IEEE Comments from the group were that a customer can specify a higher temperature
ambient and that changing just in 12.01 may cause issues since 12.00 would not change
No further discussion was held and issue was tabled o Minimum Voltage Rating Scope – change to 208 from 601 – no support from the group o Applications Section 7.5.d – Inclusion of furnace and traction transformers – no support from
the group
New business
- The chair asked for a Secretary and Sasha Levin agreed to volunteer. The chair expressed his gratitude.
Next meeting: Fall 2016, Vancouver, British Columbia, Canada, October 23-17, 2016 With no further business, the meeting was adjourned at 2:29 PM by the chair.
Annex D
Page 3 of 13
Chairman: Casey Ballard Secretary: Sasha Levin
D.2.2 IEEE PC57.12.60 - Dry Type Thermal Aging Chair Roger Wicks
The working group met in the Georgia 4-5 Room in Atlanta Georgia Hotel. The meeting was called to order at 9:30 AM by Chairman Roger Wicks. Roger explained that he would be assuming the Chair roll as former Chair Casey Ballard had stepped down to assume Chair roll of C57.12.01. Introductions were made and attendance sheet was circulated. The meeting was convened with 27 people in attendance / 17 members present (Quorum reached.) The minutes from Fall 2015 WG meeting in Memphis and agenda were approved unanimously.
Old Business / Review of last meeting:
1. Reference Temperature Explanation Roger Wicks presented information on Thermal Endurance and Reference Time that was presented at previous meeting. Explained that there are different reference times associated with different standards, and that 12.60 uses a “reasonable” reference time of 40,000 hours. Using longer reference requires longer extrapolation of data, making results less statistically acceptable. He reminded the WG that it was agreed to retain the 40,000 hour reference time at the last meeting in Memphis. Roger also explained that in order to achieve completion of test with desired (low) number of hours for high temperature test point, very high temperatures must be used.
2. Full-Size Working Coil discussion Roger reviewed the agreed upon definition for Full-Size Working Coil (as discussed at Fall 2015 Memphis meeting), described as: Small-scale transformer coils. Test samples should be actual full size working coils capable of meeting the requirements of IEEE C57.12.01 and passing the testing per IEEE C57.12.91. Coils shall be selected to represent the transformer range for commercial use…
3. PD Measurement as a trending test
Reviewed previous proposal of adding information related to PD in C57.12.60. Reminded WG that proposal was approved to include into the standard information on PD as part of an informative annex.
4. Major Insulation materials and method for changes (major) Reviewed problem of current standard not having clear information on how to modify an established EIS. A proposal had been made at previous meeting to utilize single point test in place of currently used Sealed Tube (CCT) test for materials deemed as Major insulation but was not voted on due to need for more discussion.
Continuation of discussion topics from previous meeting: 1. Accuracy of model types and methods for changes (voltage and other) Mark Raymond reviewed that both full size coil and “model” techniques have been used to developed MV EIS’s, but an abundance of data on completed systems was not available. Mark explained that changes are handled on a case by case basis, and that modifications such as changing a varnish that was present in original EIS may require full three point temperature test. Explained that models that are used in testing may not be suitable or capable of being tested with Impulse test. He also explained that in IEC, the German NC has proposed a new standard for development of MV EIS’s using “model” technique (IEC 61857-41). This standard has not yet been
Annex D
Page 4 of 13
released. This standard will use requires three models as opposed to the IEEE requirement for thirteen. Casey Ballard asked if there was data on EIS’s tested both ways (model and full size coil), but group was not aware of any data. A discussion regarding possible ways to approve modification/substitutions for materials by using chemical analysis or comparisons of assigned temperature indexes. Solomon Chiang suggested that IR comparison of materials may be useful, but perhaps would not capture all differences between materials. Roger Wicks explained that different temperature indexes may be assigned to the same material depending on the property that is measured.
2. Extension of cold shock testing A discussion regarding the possible extension of Cold Shock testing to all types of dry-type transformers was held. Currently cold shock is only required for solid-cast and resin-encapsulated transformers only. Chuck Johnson explained that these types of transformers were subject to (epoxy resin) cracking, although expansion/contraction in other types (including OVDT) may also cause cracking of insulation. Solomon Chiang pointed out that different expansion rates for Cu and Al may also affect potential cracking. A motion was made by Casey Ballard, seconded by Tim Mai to strike the reference to “solid-cast and resin-encapsulated designs only” in Clause 4.6 so that all transformers were subject to cold shock test, followed by discussion. Casey Ballard explained that changes to terminology (including resin encapsulated) may affect how future designs may be tested. Casey reminded the WG that if we did nothing, all transformers would need to be cold shock tested based on the changes in terminology. A discussion of how future modifications (single points) would be tested (with or without cold shock). Dhiru Patel asked that we consider how EIS’s that were tested without a varnish would be handled. Following the discussion the motion was approved (14-1) to modify Clause 4.6, striking reference “solid-cast and resin-encapsulated designs only” in the working Draft document. 3. Ratioing Up or Down from tested EIS Roger asked the WG if it is acceptable to ratio up or down stress of a new design relative to stress levels tested in an approved system. Roger presented the following examples:
• Example 1 – are the stress levels of a 15kV coil tested per 12.60 acceptable to ratioed up for 72kV
• Example 2 – are the stress levels of a 36kV coil tested per 12.60 acceptable to be ratioed down to 5kV
Mark Raymond discussed that using lower voltages and ratioing up may be acceptable to UL, but would like guidance from IEEE regarding what lower voltage levels would be acceptable. A motion to approve use of ratioing down (Example 2) was put forth by Casey Ballard and seconded by Sanjib Som. After discussion, motion was not passed and it was decided to defer approval and investigate method further.
4. Work Assignments for Revision
Assignments for the work were reviewed and volunteers solicited. The chair requested that the volunteers provide at least an outline of their thoughts for work on these areas by the end of May. • Review use of Partial Discharge as a trending test. – Tim Mai and Louis Nemec • Review proposal of using One Point Test as a way to modify or change a Major insulation
in and approved EIS. Review use of Sealed Tube CCT test to approve changes to Minor insulation in an approved EIS – Dhiru Patel, Mark Raymond, Roger Wicks, Ashley Reagan, Solomon Chiang
Annex D
Page 5 of 13
• Review proposal to use “ratio down” method to approve new (lower) voltage class. – Casey Ballard, Chuck Johnson, Dhiru Patel
• Review other changes including Model Definition and Cold Shock sections. – Mark Gromlovits, Sanjib Som
New Business
• Ashley Reagan asked question of how the number of test units specified in model test (thirteen) was determined. No one at the meeting was aware of the reason.
• Chuck Johnson reminded WG of 2019 deadline to complete work on this PAR.
The meeting was concluded at this point due to no more time. It was confirmed that the WG would meet again at the Fall 2016 Transformer Committee Meeting in Vancouver.
Meeting was adjourned at 10:45AM Chair: Roger Wicks Co-Chair: Dave Stankes
D.2.3 IEEE PC57.12.51 - Dry Type Product Standard “> 500kVA Ventilated” Chair Sanjib Som
Meeting convened at 11:03 AM
Attendance: 26 total (13 members, 13 guests); since total members is 15, quorum was archived.
The chairman brought the meeting to order, circulated the roster and encouraged our guests to request membership if they would like to join the working group.
Mark Gromlovits was introduced as the new secretary.
A few technical projector difficulties delayed the start of the meeting.
The chairman reviewed the agenda with all present.
The chairman reviewed the meeting minutes from the previous meeting and advanced a motion to approve the minutes. Chuck “so moved” John “second”, minutes was unanimously approved.
The chairman explained to the group that he will need to review all of the changes that Casey Ballard and Tim Holdway had discussed and introduced in the red line copy of the standard. We were to concentrate on the “Title” of the document for the first part of our meeting.
The chairman pulled up a copy of the standard for the group to view and initiated the discussion regarding the title.
The chairman pointed out “501 kVA” was part of the title, however in several places in the document <500 kVA was mentioned (see example at 6.6.2). This is most certainly a conflict that needs to be resolved. Further discussion took place for the next 25 minutes.
Annex D
Page 6 of 13
Chuck Johnson suggested combining 12.51 and 12.50 – his point “does this standard truly represent the standard from 1 – 501 kVA”. The chair clarified that combing of the two standards are still on track.
Casey pointed out that using “General Requirements” in our title present confusion with regards to 12.01. Several members present pointed out that we have “ventilated” in our title which differentiates from 12.51.
Chuck Johnson went on to expound on the intent of several standards with regards to the word “General” in the title.
Dhiru Patel commented that this document covers upto 34.5 KV whereas C57.12.01 covers upto 69kV. There was no further discussion on this topic.
Casey Ballard reminded the group that any changes we make to 12.51 need to correspond or rather not conflict with 12.01. This led to a discussion regarding the “interchangeability” and “mechanical” nature of the document. He said “it’s basically all the stuff that was left out of 12.01”.
Chuck Johnson mentioned that this used to be a NEMA document and the title was simply brought forward when it switched to IEEE.
Casey noted that this document references other standards for almost everything. He stated “we only kept what was different”. Further to this he said “we may not even need kVA in the title”. More discussion took place.
The chairman again made it clear that the title is our responsibility and that we need to focus on it. We reviewed the scope to assist in helping define the title.
Casey mentioned again that “all electrical stuff had been removed from this document, only mechanical and accessories were left in 12.51”.
A discussion regarding 12.55 and how it relates to enclosures took place.
The group expressed concern that 12.51 was kind of caught between all of the other standards.
More discussion took place regarding the “kVA’s” mentioned in the title and simply changing it to a lower kVA like 200 kVA. Casey strongly opposed removing or changing the kVA in the title. He wanted to change it completely and remove kVA entirely.
The first motion was made by Casey Johnson to change the title to – “Ventilated Power Transformers mechanical interchangeability and accessories”. Discussion regarding the motion took place over the next 15 minutes.
Chuck Johnson suggested adding “Basic” to the title. Jerry, Phil and Casey objected to this.
Casey Ballard then said “I think this is more of a guide than a standard”. Casey reminded the chairman that he can change this form a standard to a guide because we are dealing with the title. It was agreed that Chairman needs to contact Jim for clarification on this.
More title discussion took place. Several random suggestions were thrown out and quickly dismissed – adding “for”, remove the word “power” and several others.
Annex D
Page 7 of 13
After some discussion the original motion was revised to “Guide for Ventilated dry type transformers, for mechanical interchangeability and accessories”. This motion was then further revised by Casey to remove the words “and accessories”. Casey again made the motion and Dhiru seconded the motion.
Before we could all agree on the title, Casey amended his motion again. The title we agreed to was “Guide for mechanical interchangeability of ventilated dry type transformers”. A vote was taken and the new title motion passed 11 yes, 0 no; that is no opposition from any attendee including our guests.
The chairman went back and asked about the blank section in the document at section 5.3. Casey said it was the only way to show a change in a word document that would show up in a .pdf.
The chairman requested that Chuck Johnson help him get a “clean” copy of the standard to work with.
Matt Ceglia form IEEE chimed in and informed the group that if IEEE cannot get a good clean copy of a standard, they will scan it and send a .pdf. Unfortunately that is the only option at times.
Casey asked about the PAR revision and the chairman stated he will work with Standards coordinator.
Casey also asked when we would vote on this standard – the chairman said he hoped to get first ballot of the working group this year.
Next meeting: Fall 2016, Vancouver, BC, Canada October 23-27, 2016.
The chairman asked for a motion to adjourn at 12:17 PM. Phil made the motion and Jerry Murphy seconded the motion.
The meeting adjourned at 12:18 PM.
Respectfully submitted,
Chairman: Sanjib Som
Secretary: Mark Gromlovits
D.2.4 IEEE PC57.12.58 - Dry Type Transient Analysis Chair Roger Wicks
Roger gave a presentation on the status of P57.12.58 since it had no formal meeting and the text is included below:
Annex D
Page 8 of 13
After Roger’s presentation Sasha Levin asked if the process for conducting the test was needed before circulating the document to the Sub Committee for their opinions. Klaus Pointner also noted that simulation software was available for this purpose and the group acknowledged his comments. Sanjib Som made a motion to send the document as-is to the membership of the Dry Type Sub Committee for their vote of approval to move to ballot. If they didn’t approve then comments would be required. Martin Navarro seconded the motion and it was approved w/o any objection.
D.2.5 IEEE C57.12.91 - Dry Type Test Standard Chair Derek Foster
The Working Group met in the Georgia 4,5 meeting room There were 14 members and 18 guests present. A quorum of 81.2% was reached. The agenda was approved. Motion by Chuck Johnson, second Tim-Felix Mai. The minutes of the November 3, 2015 meeting in Memphis were approved as written. Old Business
• The Chairman advised that this is now a Working Group, since the PAR for revision was approved at the March NESCOM meeting. Chuck Johnson commented that people should review the purpose and understand that C57.12.91 is about gathering test information, NOT a pass/fail determination. C57.12.01 has pass/fail information.
• Sanjib Som presented a proposal to measure current during the applied voltage test. After some
discussion, a vote was taken with 2 votes for the proposal, 10 against and 1 abstain. Proposal rejected.
• Sanjib Som also presented a proposal to measure acoustic noise during a full load current test, to be a Special Test. After discussion a vote was taken with 12 against, 0 for. Proposal rejected.
• Casey Ballard then explained a proposal to apply a correction factor to no-load losses if the core top yoke temperature is greater than 40 °C. After discussion a vote was taken with 10 against, 0 for. Proposal rejected.
Annex D
Page 9 of 13
• Tim Holdway had proposed the addition of two clauses in the dielectric test section, one relating to the applied voltage testing of transformers for installation and/or testing at altitudes above 1000 m and the second relating to impulse testing of transformers for installation and/or testing at altitudes above 1000 m. These clauses require the application of a correction factor which can be found in C57.12.01. After discussion a vote was taken with 0 against and 10 for. Clauses as written will be added to the standard. Casey Ballard suggested that a similar clause should be added to the temperature rise section and Carl Bush agreed to provide proposed wording.
New Business • • The Chairman stated that in section 3 of the standard (Definitions), there is a single line statment
referring readers to C57.12.80, and asked if the Working Group considered that some definitions should be added to the standard. Chuck Johnson suggested that the group may want to consider adding some definitions specific to dry-type transformers. This item will be reviewed at future meetings. Rick Marek added that C57.12.80 is being re-opened and we need to clarify the definitions of various dry-type transformer constructions.
• The Chairman also stated that currently there is no reference to PD testing in C57.12.91. A reference to PD testing in an earlier revision had been removed, but the Chairman asked if the group believes that a reference should be re-instated. A vote produced 6 for and 2 against. A reference to PD testing will be added to the standard. Dhiru Patel and Chuck Johnson then said that other tests would also need to be in referenced in C57.12.91. Chuck Johnson moved that all tests mentioned in C57.12.01 be referenced in C57.12.91. A vote showed 10 for and 0 against.
With no further business, the meeting was adjourned at 6:05 pm. The Working Group will meet again at the Fall 2016 meeting in Vancouver.
Chairman: Derek Foster Vice Chairman: David Walker
D.2.6 IEEE PC57.16 – Dry Type Reactors Chair Art Del Rio
The new working group for the revision of C57.16 met for first time in the ‘Atlanta 4’ room of the Sheraton Hotel on Monday March 21,2016, at 4:45 PM. The meeting was called to order at 4:45 PM by the Chair Art Del Rio. As this was the first meeting following the PAR approval, it was held off-schedule. There were a total of 10 participants, 10 requesting and granted membership, noting that 6 of these participants were part of the WG for the 2011 revision. The meeting was opened with the introduction of participants and the circulation of attendance roster. Meeting notes:
Annex D
Page 10 of 13
Meeting Agenda (unofficial) • Introductions and Attendance Sheets.
• Background.
• Topics for Discussion.
• Membership
• Adjournment. Minutes from previous meeting
No minutes from previous meeting as this was the first meeting. New Business:
1. The administrative information related to the PAR approval was presented to the group by the Chair.
Type of Project: Revision to IEEE Standard C57.16-2011 PAR Request Date: 24-Nov-2015 PAR Approval Date: 05-Feb-2016 PAR Expiration Date: 31-Dec-2020 Status: PAR for a Revision to an existing IEEE Standard Root Project: C57.16-2011 Expected Date of submission of draft to the IEEE-SA for Initial Sponsor Ballot: 06/2019 Projected Completion Date for Submittal to RevCom: 12/2019 2. The existing Scope and Purpose sections of the C57.16 standard were presented to the group for
review and comments. The participants were encouraged to submit suggestions to the Chair as topics for discussion in the next meeting.
3. A reference to the information available in MyProject related to the balloting process for the previous 2011 revision was presented. It was noted that many of the comments requiring resolution during balloting were related to TRV and mitigation methods.
4. Charles Johnson volunteered to compile meeting minutes from old meetings related to the 2011
revision and send them to the Chair as background information and to share the existing recent history on the C57.16 standard with others.
5. A volunteer for the role of Secretary will be requested in the next meeting. Meeting adjournment: Meeting was adjourned at 5:30 PM Next meeting: Fall 2016, October 23-27; Vancouver, BC CANADA. Respectfully submitted, Chairman: Art Del Rio ([email protected]) Secretary: TBA
D.2.7 IEEE PC57.124 – Dry Type Partial Discharge Guide
Annex D
Page 11 of 13
Chair/Co-Chair: Thomas Prevost/Richard Marek Secretary: Open
The first meeting of the task force took place at the Capital Center meeting room of the Sheraton Hotel. The meeting was called to order at 8:03AM by Tom Prevost, Chairman with 41 present.
This was the first meeting so Tom stated that this was only a task force meeting. He explained the rules of a PAR and the technical definition of a PAR as reviewed by NESCOM. He explained the indemnification provided by NESCOM approval. The reason for the explanation was that today’s meeting will determine the Scope and Purpose of the document. The group needs to review the 1991 document which was reaffirmed in 2000. He then noted that reaffirmation is no longer permitted.
Tom then reviewed C57.113 which is a similar document for liquid-immersed transformers. C57.12.01 is the base document where the PD requirements were revised to match IEC more closely. Tom showed the agenda and asked if it was acceptable. However, since the group was only a task force, it could only be informally approved. All present approved. Tom also noted that assuming this was the last Task force meeting, the next meeting in Vancouver would be a working group meeting and anyone requesting membership at that meeting would become a member automatically.
Tom noted that C57.12.01 was revised in 2015 and it sets limits and specific procedures for performing the test. He reminded all that C57.124 is the procedure with no limits which should be found in the base documents. Chuck Johnson requested the opportunity to speak describing the history of dry-type PD testing going back to Tony Jonetti who changed C57.12.01 where the limits were first set. He noted that there were different limits for “open wound” compared to epoxy vacuum cast and expressed the hope that the procedure will also help to interpret as well.
Detliv Gross described the need for PD evaluation of epoxy cast transformers. Chuck Johnson then clarified the PD test is required for epoxy cast but only considered an “other” test for “open wound” units. C57.12.01 was then reviewed demonstrating that the requirement is mandatory for solid cast.
Dr. Hem Shertukde noted a bubble is a flaw to be located and asked if acoustic or apparent discharge was better. Detliv Gross noted that in some bubble sizes, it may take 15 minutes or so for the PD to initiate so the current procedure in C57.12.01 may be inadequate. Tom questioned where a note explaining this timing would be placed. He felt is should be in the C57.12.01 document and not in the C57.124 document.
The scope and purpose from the last revision were then shown for discussion. Tom noted that the scope is required, but the purpose is optional. His preference was to include a purpose. IEC 454 was a previous reference but is no longer in existence. In fact all of the IEC references were out of date and required updating. The scope and purpose of C57.113-2010 were read and it was noted that they were nearly the same as in C57.124. One solution could be to revise C57.113 to include dry-type units. Tom asked Detliv if this might be feasible. He noted that the physics of discharge and the failure mechanism are completely different. He does not feel combining the two would be feasible. Tom noted that the core of the document is the same for setup and procedure but that interpretation is in an annex.
Chuck Johnson asked that we make sure the document includes procedure and interpretation. Aleksandr Levin noted that there are no bushings on dry-type transformers. It was decided to continue as planned. Tom asked if anyone felt the document was not needed. Detliv noted that acoustic measurement could be used especially for location purposes. No one was against proceeding to request a PAR. Tom noted he prefers the scope from C57.113 as a starting point and felt it could easily be modified. Also, he preferred the wide band apparent charge method.
David Walker asked if reactors would be included. Casey Ballard noted that reactors have their own requirements in separate documents. Chuck Johnson noted that C57.12.01 does not include reactors. C57.16 is the standard for reactors. (Can French) noted there is a difference between transformers and reactors so no need to include them in the scope. Only a corona test is performed since there is no core
Annex D
Page 12 of 13
and the turn to turn stress is very low. However, this only applies to air core reactors and it could apply to iron core reactors. Casey Ballard noted there was no definition for reactors.
Tom asked David Walker why he asked the question. He said other facilities in his company make iron core reactors and he just wondered if they would be included. He noted that reactors are included in C57.12.00. Chuck Johnson noted that others should be included if the scope is expanded and Tom asked if this should be asked at the dry-type subcommittee meeting. Chuck suggested the group proceed as initially planned and wait to see if the SC generates a request. Roger Wicks suggested keeping iron core reactors with the rest of the reactor documents. Detliv recommended omitting reactors and then bring it up at the SC meeting. By voice request, no one opposed the suggestion.
Tom suggested starting with the C57.113 scope and wording was discussed. Detliv noted that location detection was unnecessary. Casey Ballard preferred to place location information in an annex. Mark Gromlovitz noted that PD location information is appropriate for an annex. Rick Marek noted that there is a distinction between cast and VPI and location for VPI can be useful. Hem and Tom both noted that they preferred to also have purpose. Chuck Johnson said the purpose statement for C57.113 should be reviewed. However, Tom does not like this purpose statement. He felt the purpose conflicts with the scope and requested the group opinion. Chuck Johnson noted the purpose should be the procedure with some equipment notes. Tom questioned why it included the narrow band when wide band is what is required by C57.12.01. He questioned if narrow band were even used. Detliv noted that high repetition rate is frequent and not detectable with narrow band. Chuck expressed his pleasure at having the expertise of Detliv, which the group needed.
It was decided that interpretation should not be in the scope or purpose, since the plan is to put it in an annex. Tom noted that the document is a recommended practice so methods are the core. A guide would have information such as this in the body but not with a recommended practice.
Bill Lazerlee who was on the revision of IEC 60270 noted that some variation was possible with wide band since the frequency range can be selected. Detliv noted that the frequency range was widened with the latest version of 60270. Also, the frequency spectrum can be wider with the latest equipment.
Tom noted that the first meeting should be a tutorial and asked Detliv if he would help and he agreed.
The meeting adjourned at 9:15 AM. After Tom’s presentation he asked for volunteers to fill the Secretary roll and nobody volunteered. Then Tom Prevost made a motion based on the meeting minutes and Jim Antweiler seconded. There was discussion on what standards should be referenced in the PAR submission with IEC 60076-11 and IEEE C57.12.01 specifically suggested. Detlev Gross noted that IEC 60270 High-voltage test techniques – Partial discharge measurements, has no equal in IEEE. The vote resulted in 16 for, 0 against, and 1 abstention.
D.3 Old Business
D.3.1 IEEE PC57.94 - WG Dry Type O&M Guide Chair Dave Stankes
Dave Stankes was unable to attend the meeting, but shared this note with the chair in advance: Thanks for reminding me that we should celebrate our accomplishments regarding C57.94! Since our last Fall 2015 meeting, 1) PC57.94 was approved as a revised standard by the IEEE-SA Standards Board on December 5, 2015, and 2) IEEE Std C57.94-2015 officially published on February 26, 2016 This project was completed on time.
Annex D
Page 13 of 13
Thanks to all who contributed to this Revision (including Sanjib, Tim, Dhiru, Casey, Jerry Murphy, Rick and Roger among others! Wahoo!!!!!
D.4 New Business
D.4.1 Chair’s Comments - The chair addressed some requirements of meeting minutes as other SC’s had been missing these
according to Sue McNelly.
o Title of WG or TF
o When and where the meeting occurred
o When and if the group plans to meet again
o Attendance of members, guests, and those requesting membership. Attendance to be recorded in the AMS.
- Any WG must bring the document to the SC for approval before going to ballot
- The Transformers Committee Chair has asked all TF and WG chairs to capture the ‘why’ behind the decisions made to help out in future revisions
- The WG chair is responsible for checking all grammar and spelling *before* sending the document out for ballot.
- Next meeting: Spring 16, Atlanta, GA, March 20-24, 2015.
D.5 Adjournment With no further business, the meeting was adjourned at 2:43 PM. Chairman: Charles Johnson Secretary: Casey Ballard
Page 1 of 3
Annex E HVDC Converter Transformers and Reactors Subcommittee
March 21, 2016, 3.15 pm Atlanta, Georgia
Chair: Michael Sharp Vice Chair: Les Recksiedler Secretary: Ulf Radbrandt
E.1 Introduction / Attendance
Introductions were made and the attendance list circulated.
There were 13 members and 15 guests present. No guests requested membership
The total membership of the SC is 17. We needed at least a total of 9 members to be present in order to have a quorum. This was achieved.
The agenda for this meeting was approved.
E.2 Approval of the minutes of the October 20, 2014 meeting in Washington, DC
The minutes from the Memphis meeting (Fall 2015) were approved after a motion by Pierre Riffon, which was seconded by Klaus Pointner.
E.3 Brief report on the meeting of the Administrative SC
Each SC shall review their scope in the Transformers Committee Operations Manual.
E.3.1 Review of the scope for the HVDC SC
The HVDC Converter Transformers and Smoothing Reactors Subcommittee section in Clause 3 “ IEEE Transformers Sub-Committees’ Scope” in the Transformers Committee Operations Manual was shown on the screen and discussed.
At a previous meeting there had been discussion to include converter reactors (for voltage source converters) in IEEE Std 1277. Therefore a vote took place regarding if we should include converter reactors in the scope. The result of the voting was unanimous to do that. The 2/3 approval rate was thereby met.
E.4 Working Group Reports
E.4.1 WG IEC/IEEE 60076-57-129 – Ulf Radbrandt (IEEE) and Mats Berglund (IEC), Co-Chairs
This joint workgroup has had one joint meeting since the last IEEE Transformers Committee Meeting (Memphis, Fall 2015). That meeting was in Atlanta 1.5 days in March 18-19 2016, just prior to this IEEE meeting.
The agreements and actions from the Milan meeting were the following:
• Mats Berglund (ABB, Sweden) has now taken over as IEC chair for this joint WG. However, the preceding IEC chair, Anders Lindroth, did still chair this meeting.
• Result from a CD within IEC were discussed and actions on each comment were decided
• There were 64 editorial comments. 50 were accepted, 5 were partly accepted, 1 was decided to be checked and 8 were not accepted
Annex E
Page 2 of 3
• There were 33 technical comments. 20 were accepted, 10 were partly accepted and 3 were not accepted.
• Comments/proposals from the IEEE HVDC SC meeting in Memphis were discussed and actions on each comment were decided
• There were 18 comments/proposals, including 12 proposals from Pierre Riffon from his check if we can refer to general standards for requirements on sections, of the actual edition of IEEE C57.129, that have been excluded from the dual logo document. 9 were accepted, 3 were partly accepted and 6 were not accepted
• The action list from the joint WG meeting was as follows
• Anders Lindroth will introduce numbering of the equations and also check that they are correct
• Anders Lindroth will change font in title of document
• Should we use a.c. and d.c. alternatively AC and DC? It should be consistent in the document.
• Anders Lindroth will check with Paul Jarman what is preferred within IEC.
• Eric Davis will check with Erin Spiewak what is preferred within IEEE.
• Ulf Radbrandt to correct the text “c, d)” in Figure B.2 to be consistent
• Anders Lindroth will number the notes if more than one in a section.
• Anders Lindroth will revise the figure for the polarity reversal test to have 30 min test time after the second reversal.
• Anders Lindroth will check all links in Table 1 (test table).
• After the document is updated with the above it will be circulated within the joint WG for final comments.
• Thereafter it will be sent to IEC TC 14 secretary to be issued as a CDV.
• The same text should be sent out for ballot within IEEE in parallel.
• The need for any further meeting with the joint WG will be decided based on the comments on the IEC CDV and the IEEE ballot.
E.5 Discussions and agreements regarding the work for a Dual Logo standard for converter transformers
Ulf Radbrandt made a presentation of the progress of the joint IEC/IEEE WG meetings (according to clause E.4 above). The discussions and agreements during and after the presentation were as follows:
• Clause 6.1 “General” in IEEE C57.129 handles requirements on rapid replacement of converter transformers or components. That is often a requirement in HVDC installations. The dual logo document does now include information (that this kind of requirements should be given by the purchaser) in an informative Annex (Annex D, Transformer Specification) but not in the normative part of the document.
• Clause 6.4.2 “Bushing current transformers” in IEEE C57.129 is not represented in the dual logo document. The reason is that this should be handled by the general transformer standards. Information that requirements on current transformers should be given by the purchaser is given in Annex D (Transformer Specification) in the dual logo document.
• Clause 6.4.4 “Accessories” in IEEE C57.129 is not represented in the dual logo document. The reason is that this should be improved in the general transformer standards and not in the dual logo document. IEEE C57.12.10 covers most of this, but not fiber optic sensors. IEC 60076-22 is
Annex E
Page 3 of 3
under creation and will probably cover most of this. During discussion regarding the optical fibers, it was commented that the optic fiber sensors are extra important for converter transformer since it is much more difficult to estimate the hot-spot factor and the hot-spot locations due to the harmonics. The question, if information regarding fiber optic sensors should be included, will go back to the joint WG.
• The table with limits for the increase in concentration of dissolved gases in oil during overload testing has been removed from Annex A “In service overloading of HVDC converter transformers”. The reason is that limits should be agreed between manufacturer and purchaser. Information that additional information is available in IEC 60072-2 and IEEE C57.130 is added. During discussion regarding this, it was commented that the limits were included in IEEE C57.129 since it is important the transformer does not produce excessive gases during overload tests.
• It was requested and agreed that when the updated dual logo document is circulated within the joint WG, then it should be circulated within the IEEE HVDC SC also.
• The parallel review process (CDV in IEC and Ballot in IEEE) was discussed. What would happen if there are very few comments in the IEC CDV but a lot of negative comments in the IEEE Ballot? Could the situation occur, that the document must be changed a lot to satisfy IEEE but it is impossible from IECs point of view? This question will go back to the joint WG. Erin Spiewak and Paul Jarman should be consulted regarding this.
E.6 Old Business
E.6.1 Revision of IEEE Std 1277
The chair (Michael Sharp) had earlier asked for volunteers to chair a working group to review and update IEEE Standard General Requirements and Test Code for Dry-Type and Oil-Immersed Smoothing Reactors for DC Power Transmission, IEEE Std 1277. Klaus Pointner has volunteered and will be chair. Members for the WG are needed. A vice chair and a secretary would also be valuable. One of these should be experienced in the formalities within IEEE.
Requirements on converter reactors (for voltage source converters) should be included in IEEE Std 1277.
E.7 New Business None.
E.8 Adjournment
The meeting was adjourned at 4.15 pm.
Page 1 of 6
Annex F Instrument Transformers Subcommittee
March 23, 2016 Atlanta, GA
Chair Ross McTaggart
F.1 Introductions
The attendees introduced themselves and reported affiliations.
F.2 Quorum
19 of 30 members were present - quorum attained
Also 37 guests attended
F.3 Approval of minutes – San Antonio, Tx meeting
Motion by David Wallace & seconded by Vladimir Khalin
F.4 Review of Agenda
F.5 Status of C57.13 Standards
The status of the various standards handled by the ITSC was reviewed. C57.13 has been approved by RevCom and is awaiting publication. C57.13.5 has just started the revision process. Pierre Riffon is the chair of this effort. After the Memphis meeting a survey was sent out regarding whether C57.13.2 should be revised or withdrawn. The results of this survey were discussed. Eddy So and Vladimir Khalin expressed an interest in keeping the standard and in particular Eddy So noted that the standard is in used by NRC. It was determined that the standard will be revised but the start date and leadership was not settled in this meeting. A TF is being co-chaired by Zoltan Roman and Ross McTaggart to revise the CCVT standard and it held its first meeting here in Atlanta.
Working Group Reports
F.5.1 Working Group on Current Transformers with mA range (WG C57.13.7) -
Chair: Henry Alton, Vice-Chair: Adnan Rashid
This WG did not meet in Atlanta. The Standard is ready for balloting
F.5.2 TF on Station Service Voltage Transformers - D Wallace
The meeting of this Working Group met at 8:00 AM as convened by Chair David Wallace. Roster sheets were circulated for attendees to sign in. A total of 42 people were in attendance with 20 members and 22 guests. 20 out of 26 members present, therefore quorum was met. Two guest requested membership. A motion to accept the agenda was made by Pierre Riffon and seconded by James McBride. There was no discussion and the motion was accepted, unanimously.
Annex F
Page 2 of 6
Motion to accept the minutes of the previous meeting was offered by Vladimir Khalin and seconded by Thomas Sizemore. After brief discussion and agreement to correct the place of the last meeting from San Antonio to Memphis, the motion was accepted, unanimously. Pierre Riffon made a presentation about the use of a Chopped Wave Test to assure the integrity of SSVTs. The presentation showed that there was good correlation between successful tests and field performance. Subsequently, Igor Ziger made a presentation about the use of an Internal Arc Test to accomplish the same purpose. This presentation provided information about the types of SSVT failures experienced. It indicated that the majority of failures were main insulation of the winding. The presentation concluded that the Internal Arc Test is not a desirable means to assure successful field performance SSVTs. There was discussion of the continuing the requirement for the use a specific size wire as a fuse for testing. After some discussion, it was agreed, unanimously that the next draft of the standard would change the requirement from a specific wire size to a wire size determined by the manufacturer that will melt within 30 electrical degrees. There had been 95% acceptance of the draft of section 6.21 in survey #1 conducted prior to the meeting. There was one comment about eliminating the inclusion of synthetic esters. After discussion, it was agreed to keep the reference to synthetic esters in section 6.21, subject to determining if there was standard for synthetic esters similar to the standard for natural esters. A discussion was held in regards to the accuracy clause to be inserted into the standard. Due to the lack of time, it was agreed to send out a survey to the workgroup on the accuracy clause. The results of the survey will be discussed at the next meeting. Draft 3 of the standard will be released to the workgroup for review and comments. The comments will be discussed at the next meeting. A motion to adjourn the meeting was offered by Patrick Rock and seconded by James Bride. The motion carried unanimously without discussion. The next meeting will be at the Fall 2016 Transformers Committee meeting in Vancouver, BC Canada.
F.5.3 WG PD in Bushings & PTs/CTs PC57.160 - Thang Hochanh
Attendees: 50 Members attending: 15/28 Agenda: An agenda was presented for the meeting. Minutes: Motion approved David Wallace (1st) & Vladimir Khalin (2nd) 1. Items discussed based upon comments received:
• 6.4 Discussed moving the key from this section to earlier in this document. Decided to move it appropriately after reorganization of the document. Likely just before balloting.
Annex F
Page 3 of 6
• Comment (Shibao Zhang) regarding addition of figure number to resolve comments in 6.4 and 6.5.1 figure 4.a and 4.b. Explanation was provided to clarify text and drawings. Updated version of the draft contained resolution.
• 6.5. 1st paragraph - Clarification on comment regarding calibration. No change was required to resolve the question.
• 7.1 “Casing connection”. New text was accepted to clarify the connection to the primary and ground.
• 7.1 b2 – Comment (Pierre Riffon) regarding the second test object was discussed and proposed text accepted.
Figure 5a and 5b – New test circuit to be provided by Vladimir.
• Incorrect connection fig. 5a and fig. 5b (Pierre Riffon), due to copy and paste action, will be corrected.
• Incorrect connection fig. 7a and fig. 9 (Pierre Riffon), due to copy and paste action, has been updated in draft 5.4 .
2. Presentation by Detlev Gross: Detlev presented several PD patterns and the physical explanation for the partials discharges. Several questions were answered as this presentation was made. The first portion of his presentation was made speaking very generically. The second portion of his presentation was providing a number of specific examples. Numerous comments were made from Thang and Bertrand. Detlev has agreed to make his presentation available to the attendees and the patterns may be used as part of the guide. 3. Additional discussion after the presentation: Mario Lucano asked about the value of C2 in section 6.3.1. A short discussion was initiated. The chair will propose a new text to the group at the next meeting. Fall meeting 2016: This WG plans to continue working at the Vancouver meeting. Next version of draft: A new draft is being prepared to incorporate all of the recent comments and also to modify the format to match the IEEE style guide.
F.5.4 Working Group on Revision of C57.13.5 "Standard of Performance and
Test Requirements for Instrument Transformers of a Nominal System
Voltage of 115 kV and Above.
The WG met on March 22, 2016, from 9:30 am to 10:45 pm. Eight (8) members and forty-three (43) guests attended the meeting. Six (6) guests requested membership. The meeting was chaired by Pierre Riffon, chair of the WG. Mr. David Wallace was the vice-chair.
Attendance has been recorded in the AM system.
Required quorum was met, presence of at least 4 members was required.
This was the first WG meeting since 2009. IEEE C57.13.5 was published in 2009 and will expire in 2019. A revision is now needed.
Annex F
Page 4 of 6
The agenda has been reviewed and a motion to approve the agenda has been made by Mr. R. McTaggart and seconded by Mr. V. Khalin. The agenda was approved by all members present.
Mr. David Wallace will be the co-chair of the WG.
A PAR has been requested and was approved on March 3, 2016 by NESCOM. The PAR is expiring on December 31, 2020.
The chair did produce a first draft of the revision of C57.13.5. This draft (D1) was based on the document which was sent to RevCom for approval in 2009. This draft was distributed by email prior to the Atlanta meeting on February 8, 2016.
Only one reply was received regarding the generic names of C2H4 and C2H6 and discussed during the meeting.
Changes proposed in D1 have been reviewed one by one up to clause 10.9.2, several changes were mainly editorial in nature such as reference clause numbers and date of referenced standards.
Among the proposed major technical changes, the following items have been discussed:
• RIV tests will be limited to units rated 230 kV and above.
• Clause 4.3 "Requirements for accuracy and accuracy calibration systems" will be
aligned with the requirements stated in the new edition of C57.13.
• Allowable leakage rates for gas-insulated instrument transformers at -40°C and -
50°C will be reduced respectively to 1,5%/year and 3,0%/year.
• Ambient temperature range during testing will be changed to +10°C - +40°C.
• Number of reduced impulses waves. The number of reduced impulse waves with
impulse voltage of 50% and higher is now limited to two in order to avoid
insulation conditioning by applying several reduced-waves. After discussion, it
has been agreed upon to allow more than two reduced impulses if the voltage
level is lower than 50% of the full-wave level. This change will be implemented in
the next draft.
• Leakage measurement will be limited to the cumulative test method. An annex
based on the content of clause 10 of IEC 62271-306 (Guide for circuit-breakers
testing and application) describing the test methodology will be added in draft
2.0.
Annex F
Page 5 of 6
• Details regarding chopped-wave test circuit and positioning of the chopping gap
have been discussed and a reference to the latest edition of IEEE Std. 4 will be
made. The additional requirement of not having a resistor in the chopping gap
circuit will be kept.
• Impulse current measurement during impulse tests will not be required if there is
no multiple capacitive grading layers.
• No short circuit withstand test will be required for CTs having a straight primary
conductor and making a single turn. For the thermal aspect of these CTs,
calculations have to be provided.
The chair invited the members and the guests to send comments on D1.
The meeting adjourned at 10:45 am on March 22, 2016. The adjournment motion was made by Mr. V. Khalin and was seconded by Mr. I. Ziger. The motion was approved unanimously.
The next meeting is planned to be held in Vancouver, BC, Canada, on October 25, 2016.
F.5.5 Task Force for PLC Capacitors and CCVT’s
The Task Force held its first meeting at 11:00 AM. It was chaired by Zoltan Roman and Ross McTaggart A total of 41 people were in attendance. 21 requested membership. As this was the first TF meeting, all were accepted as members. The agenda for the meeting was presented and approved. The numbering of the new standard has been discussed. Several proposals were made, the group agreed on IEEE C57.13.9. This will need to be verified with IEEE PSRC as the previous standard (ANSI C93.1) belonged to that group. The title of standard C93.1 has been unanimously accepted as the title of the new standard. The scope of the new standard has been discussed. The scope of the old standard has been accepted with the following suggestions:
• Specify the voltage range that should be covered by the standard (34.5kV
and above was suggested by D. Wallace) and delete “high voltage”
• Delete the following part “secondary compensated-field adjustable
CCVTs.”
It has been agreed to submit a PAR before the next meeting. The members agreed to harmonize the new standard with the current IEC and CSA CCVT standards. Some members asked to verify if it was possible to share these standards with the TF/WG members. The meeting was adjourned shortly before 12:15PM. The next meeting will be at the Fall 2016 Transformers Committee meeting in Vancouver, BC, Canada.
Annex F
Page 6 of 6
F.6 Special Presentation
Eddy So gave a presentation regarding the applicability of TCF/RCF in current applications. Limited questions were asked and the presentation will be made available to the members of the sub-committee. Zoltan Roman presented some experimental data regarding the accuracy classes for VTs. In a future meeting data regarding the accuracy classes for CTs and CVT will be presented.
F.7 New Business
Zoltan Roman brought up the issue of ferro-resonance in Europe. He asked if any of the utilities being represented had similar issues and how they dealt with such issues. Pierre Riffon noted that grading capacitors have caused similar issues for Hydro Quebec in the past and this was at least partially dealt with by changes in how circuit breakers are specified. Igor noted that his company has provided simulations to explain to customers potentially at risk applications. Zoltan requested that a survey be sent regarding ferro-resonance and a review of case studies.
F.8 ITSC Adjournment
Motion to adjourn by David Wallace and seconded by Vladimir Khalin.
The next meeting will be at the Fall 2016 Transformers Committee meeting in Vancouver, BC, Canada.
Page 1 of 15
Annex G Insulating Fluids Subcommittee
March 23, 2016 Memphis, TN
Chair David Wallach Vice-Chair Jerry Murphy Secretary C. Patrick McShane
G.1 Introductions, Roll Call of Members for Quorum, Meeting Agenda Approval, F13 Minutes Approval, and Chair’s Comments
G.1.1 Chair’s comments: a. S16 meeting chaired by Jerry Murphy Vice-Chair, as the Chair David Wallach was unable to
attend. Patrick McShane, Secretary was present. b. A message from the Chair stated that there is an invitation made to the TC’s WGs and TFs to
submit a poster summarizing their current activities for showing at the Dallas T&D meeting Poster Session. Susan McNelly will be there. Patrick McShane asked could the SCIF make a submittal to cover its WG and TFs. Susan stated the proposal did not mention SCs but would check as she sees no reason why that would not be acceptable.
G.1.2 Roll Call of SC members: (Quorum requirement: 25 minimum)
a. Quorum requirement was achieved, with 24 members in attendance at the time of the roll call. When the visual count was made, 24 members were present. However, eventually 33 members and 54 guests signed the roster. One of the three persons that had requested and eligible for membership status if present at roll call, OSCAR PINON and he was welcomed as the SCIF newest Member.
G.1.3 Agenda Approval:
a. SC Vote Outcome: The SCIF F15 agenda approved by Deanna Woods, seconded Kent Miller seconded unanimously,
b. Dave Sundin made a motion to approve the F15 SCIF minutes including a friendly amendment to add two missed guest in the reported count in the posted unapproved. Luiz Cheim seconded the motion. The Members unanimously approved it.
G.1.4 Corrections and Approval of minutes from Spring 2014 meeting in San Antonio, TX: a. SC Vote Outcome: Dave Sundin made a motion to approve the F15 SCIF minutes including a
friendly amendment to add two missed guest in the reported count in the posted unapproved. Luiz Cheim seconded the motion. The Members unanimously approved it.
Annex G
Page 2 of 15
G.1.5 WG & TF Reports Presented at the SC Meeting
G.1.5.1 C57.104 – IEEE Guide for the Interpretation of Gases Generated in Oil – Immersed Transformer (PAR Expiration: 12/31/17)
WG Chair - Rick Ladroga, Vice-Chair - Claude Beauchemin
The report of the WG Meeting was presented at the SCIF meeting by Claude Beauchemin.
The quorum achieved.
Michel Duval made a presentation on advantages and limitations of fault identification methods of DGA.
The meeting reviewed new section 7 of the guide of which was the subject of several conference calls since F15. They didn’t finish the review during meeting. The content of the tables were focused on, particularly importantly steady state values table with several alternative proposed. A poll will be sent out to the WG on the alternatives and corrected tables. Also a flow chart for handling data needs re-work.
See Annex I for the Minutes (unapproved) of C57.104 WG Meeting as Submitted
.
G.1.5.2 IEEE C57.147 Guide for Acceptance and Maintenance of Natural Ester Fluids in Transformers
WG Chair: Patrick McShane, Vice-Chair: Clair Claiborne, Secretary: Jim Graham
The WG Report at the Sub-Committee Meeting: Presented by Patrick McShane:
Since last meeting, PAR revision requested per WG approved motion of the F15 meeting, and approved by NESCOM in late January. Invitation to join voting pool was issued and Draft 2.0 MEC submitted and reviewed by IEEE SA. Draft 3 based on feedback from the MEC review was released for vote. Currently just over 50% of elgible voters have done so, with 90% approval rate, 63 comments (mostly editorial).s
A few technical comments were discussed, primarily some disagreement on what is recommended maximum temperature for surfaces in contact with the insulating liquid during processing. Also a suggestion was made to expand the Introduction of the Guide to provide more background on the Guide history and purpose of the revision. The WG Chair requested those who joined the pool to vote before the deadline.
Jerry Murphy reiterated the need to vote if you signed up in the ballot pool. Due 3/31.
.
See Annex II for the Minutes (unapproved) of C57.147 WG S15 Meeting as Submitted
Annex G
Page 3 of 15
G.1.5.3 TF on Consolidation of Insulating Liquid (Fluid) Guides
Chair: Tom Prevost
The TF Report given at the Sub-Committee Meeting by Tom Prevost:
Quorum was achieved. Attendance included 63 guests, 12 requested membership on the TF. However, the Chair stated since the TF will make a transition to WG the application will apply for WG member status.
Dave Sundin, mentioned that it appears that two alternate insulating liquid Guides will expire prior to the formation of the Consolidation Guide. Dave asked, what action is recommended for their respective working groups? Tom Prevost responded, saying he will check with IEEE for SA rules. He stated the best case estimate to publish the consolidated guide by 2020. Jim Graham will also check with IEEE SA. Jerry Murphy stated one option is to just let them expire. Matt Ceglia of IEEE confirmed that the expiration dates is a hard stop of IEEE SA Active Status and the Guides, although would be classified as “inactive” would none-the-less be available for reference and purchase from IEEE. He added that once the Consolidated Guide is published, the other existing Guides would be superseded immediately. Patrick McShane stated that some brought up fact there is no IEEE existing synthetic ester maintenance guide, only an ASTM guide for new fluid is in works. Tom thinks the WG can coincidentally develop a synthetic maintenance guide while consolidating the existing guides.
Tom Prevost asked: “Are we ready to request PAR and to work on scope and purpose?” He then made a motion for SCIF to approve formation of WG for developing a consolidated guide for 5 insulating liquid standard guides. Clair Claiborne seconded. The motion passed.
See Annex III for the S16 Minutes (unapproved) of TF Consolidation of Insulating Liquid Guides as submitted.
Annex G
Page 4 of 15
G.1.5.4 TF on Particle Count Limits in Mineral Oil
Chair: Mark Scarborough, Secretary: Paul Boman
Mark Scarborough reported: The TF did not meet. What transpired since F15 included sending out a survey to approve the TF report that was written. 27 members, a majority, approved. Susan McNelly had many good editorial comments. The report has been submitted for approval. No consensus to use or not to consider particle count in insulating liquids is stated in the report.
Luis Cheim: Stated that the report seems to focus only on new transformers. Mark responded that was what was in the original purpose.
Motion was by Mark to present as the completed report. Jim Thompson seconded.
Tom Prevost asked; where is the report going to go? The response by Jerry Murphy was that there is now a placed for white papers on the web site. Susan McNelly indicated the section included tutorials and white papers now (including the SC Stds Insulating Liquids Terms white paper).
Motion carried unanimously to approve the report, and for posting. TF is closed..
G.2 New Business a. C57.12.00 - A comment was submitted during recirculation ballot, but was
deemed out of scope. It is not clear why? Matt Ceglia stated that during re-ballot process, a comment might be a non-modifiable part of the draft, aka “out of scope”. Since the comment pertains to insulating liquids, the advisement was submitted to the SCIF Chair. Per Jim Graham, the purpose is that if the SCIF considers the comment has merit, it can make a suggestion to the next revision of C57.12.00 WG to accept the comment. Jim suggested that the SCIF add this subject as an agenda item as old business for the F16 meeting.
b. Patrick McShane stated that it is his understanding that IEEE SA suggests that proper procedure for ballot resolution is for the BRC revised draft be approved by the WG Members prior to the recirculation vote. There has been some confusion on that policy in the past. That is the policy the WG will follow for PC57.147.
c. Under the S16 New Business Agenda, Don Platts was scheduled to give a 30 minute power point presentation on issues of negative tank pressure causing air entry during insulating liquid sampling procedures. Unfortunately, discussion of the other items of the meeting agenda ran long, and the power point presentation could not be made in the short remaining time. So Don provide the “5 minute elevator speech” instead. He stated that field testing procedure for transformers exists to determine if there is a positive tank pressure. However, there is a potential issue that the procedure itself can cause air to flow into the transformer. That problem can be eliminated using proper type of valves. Don advised he will be putting full presentation at the next ASTM D27 meeting.
Annex G
Page 5 of 15
G.3 Adjournment
The motion passed unanimously.
Respectively Submitted, Patrick McShane, Secretary SCIF
Annex G
Page 6 of 15
Unapproved Minutes from the S16 SCIF WG and TF Meetings
Annex I – WG C57.104 Minutes
IEEE Guide for the Interpretation of Gases Generated in Oil – Immersed
Transformers
Tuesday, March 22, 2016
Atlanta, Georgia, USA
Minutes of WG Meeting
The meeting was called to order at 4:45pm by Vice Chair Claude Beauchemin. Secretary Susan McNelly (writer of Minutes) was also present.
There were 50 of 77 members present. There were 53 guests, and 10 guests requesting membership. A membership quorum was achieved. The WG does plan to meet at the Fall 2015 Transformers Committee Meeting in Vancouver.
The following guests requesting membership were:
Marcos Ferreira Jeffrey Ray
Roger Hayes Justin Turner
Branimir Petosic Michel Veillette
John Pruente Deanna Woods
Jimmy Rasco Kwasi Yeboah
All of the above will be added as WG members.
Agenda
1. Attendance Roster Circulation
2. Member Roll Call & Quorum Check
3. Approval of the Fall, Memphis minutes
4. Presentation on Fault Identification Methods – Duval
5. Document Status
Annex G
Page 7 of 15
a. Determine number of methods to be referenced
b. Discuss expansion of Table 1 and Table 2
6. New Business
7. Adjournment
Introductions of the Vice Chair and Secretary were made. Attendees were asked to introduce themselves and indicate their affiliations when making comments or asking questions.
List of Meeting Attendees is provided below. Those identified in bold are WG Members in attendance.
A motion to approve the Fall 2015 Memphis Agenda was made by Don Platts and seconded by Tom Prevost. There were no objections or additions to the agenda. There was no opposition to approval of the minutes.
Annex G
Page 8 of 15
Presentation on Advantages and Limitations of Fault Identification Methods of DGA – Duval
A more detailed presentation by Michel is on the schedule for one of the Thursday main Tutorials.
Document Status – Review of Section 7
Claude indicated that several conference calls have been held to work on the text for the revised Guide. As the meeting approached, it was decided to first concentrate on one section at this meeting. Section 7 was sent to the WG for review prior to the meeting. Unfortunately, the Table in this section is the incorrect table and does not match the text. This will be corrected.
A decision regarding which method of presenting the data needs to be made. This decision will drive much of the rest of the work.
The PAR extension expires at the end of next year, which will require the process to be accelerated in order to meet the deadline. The objective is to have a draft out for review before the next meeting.
Annex G
Page 9 of 15
The introduction to Section 7 is on why DGA is done. The Guide will not direct how to physically deal with a transformer, it will provide information on when it is advisable to do a transformer assessment.
The section also includes a routine/periodic sampling procedure. This is not initiated by any specific action, but rather on a routine basis. The idea is to build a baseline DGA for each unit with a certain number of samples within a short period initially. A specific recommendation regarding the number of samples is not indicated.
Claude stepped through the proposed Figure 2.
Fredi Jakob indicated that the previous tables gave direction on the urgency of the situation based on the levels.
The proposed table for change levels does not treat all of the gases the same as was previously done with regard to the amount of change.
Another change is determining the condition of the transformer. DGA will not tell someone in of itself that a transformer is bad. The use of DGA Status rather than Conditions is proposed. DGA Status and TR Condition are not the same. A transformer assessment is never done on the result of a single sample. Astatistical sample will only indicate that a unit is out of the norm, not necessarily that there is something wrong with it.
Table 1 was presented (corrected version from what was sent out prior to the meeting). Corrected version will be sent out after the meeting. Two sets of values based on the ratio of Oxygen to Nitrogen were provided. Most of the time a lower ratio (<0.15) indicates a sealed system and a higher ratio (>0.15) indicates a breather type unit, but not always. For that reason, this terminology was not used.
A question was asked whether consideration was given to volume of oil and MVA rating. Claude indicated that will be one of the alternatives identified; however, the data that is available is not reliable with regards to this data.
Luiz Cheim indicated how much of the data included the age and what percentage was less than 69kV. After the meeting, it was noted that the values indicated in the meeting may not be correct and will need to be re-reviewed.
Alternate 1 Tables replaces the less than one year with a column for all results.
Alternative 2 keeps the “All” value and provides a range in place of the separate age columns.
Alternative 3 is similar to the original proposed tables with age breakouts, but also with MVA information. However, as previously mentioned, in the database, these two values are the most corrupt values.
A poll will be sent out to the WG with the alternatives presented and the corrected tables in the section 7 document.
There was considerable discussion on the data and assumptions that had to be made regarding the age and years of operation.
The meeting was adjourned at 6:00PM
Claude Beauchemin
Annex G
Page 10 of 15
WG Vice-Chair
Susan McNelly, WG Secretary
.
Annex G
Page 11 of 15
Unapproved Minutes from the S16 SCIF WG and TF meetings
Annex II – WG PC57.147 Minutes
Guide for Acceptance and Maintenance of Natural Ester Insulating Liquid in Transformers
March 21, 2016 ATLANTA, GA
Chair: Patrick McShane, Vice-Chair: Clair Claiborne, Secretary: Jim Graham
• Call to Order was made at 3:15 PM. • Introductions/Membership Attendance/Quorum Check
o 19 of 30 members present, quorum was achieved o 74 guests o Total attendance = 93 o 8 guests requested membership
• A motion to approve the agenda passed.
• A motion to approve the Fall 2015 meeting minutes was passed.
• Chair's Remarks, Patrick McShane:
o PC57.147 Draft 2.0 is currently in ballot. Balloting closes 31 March, 2016. The chair reminding the members to submit their votes before the closing date.
o As approved at the F15 meeting, a PAR REVISION was submitted to and approved by IEEE SA based on recommended changes to Title, Scope, and Purpose to reflect current recommended nomenclature for insulating liquids and reflect applications in large power transformers.
o The chair reminded the WG that the PAR expires end of 2016. It is anticipated the guide will be approved by the end of 2016 and an extension will not be necessary.
• Old Business
o None.
• New Business
o Some of the technical comments from the ballot were reviewed but no resolutions were voted on at the WG meeting.
o A ballot resolution group comprising Deanna Woods, Stephanie Denzer, Susan McNelly, Claude Beauchemin, David Hanson, and the working group officers was formed last fall. Dave Sundin, Larry Christodoulou, Don Doris, and Jeremiah Bradshaw were added to the ballot resolution group.
Annex G
Page 12 of 15
o James Graham, the standards coordinator, reminded the working group the ballot resolution group shall submit their comment resolutions to the working group for acceptance before recirculating the guide for approval.
• The meeting adjourned by acclimation at 3:30 pm.
Respectively submitted, Jim Graham, Secretary Post Minutes WG Chair Comment: The WG will meet at the F16 TC Meeting. Also it has been noted that the Initial Ballot Title did not reflect the revised PAR replacing the term “Fluids” with “Insulating Liquid.” This will be correct for the recirculation ballot. Respectively submitted, Patrick McShane, Chair
WG C57.147 Minutes Annex:
Time Line Goals - Key Milestones
• Finalize Key Issues Listing Done
• TF Final Reports Done
• WG Officers TF Compilation for Draft 1 Done
• 1st Straw Vote Draft 1.1 Done
• TFs Comment Review Draft 1.1 Done
• Draft 1.2 Straw Vote Done
• TFs Comment Review Draft 1.2 Done
• Draft 2.0 for WG approval Done
• Initiate SC Ballot Pool (IEEE SA) Done
• Ballot (IEEE SA) Done
• Ballot Resolution
• (BRG formed & complete task) Q2 2016
• Successful Vote! Q4 2016
• IEEE SA Approval and Publication Q1-2 2017
Annex G
Page 13 of 15
Unapproved Minutes from the S16 SCIF WG and TF meetings
Annex III – TF Insulating Liquids Guides Consolidation Minutes
Task Force on Consolidation of Insulating Liquid Guides Monday, March 21, 2016
9:30 – 10:45 AM
Capital Central Ballroom
Sheraton Hotel, Atlanta Georgia
The meeting was called to order at 9:35 am by Chair Tom Prevost.
There were 22 of 43 members present. There were 63 guests, and 12 guests requesting membership. A membership quorum was achieved. Guests attending the WG meeting for the first time who request membership or who have not attended 2 meetings in a row (including the present meeting, will be deferred until the next meeting attended.
Agenda
1) Introductions
2) Approval of agenda
3) Approval of November 2015 minutes
4) Review of current document status
a. C57.147 “Guide for Acceptance and Maintenance of Natural Ester Insulating Fluids in Transformers and Other Electrical Equipment”
i. In Revision process, PC57.147
ii. PAR opened 6-Feb-2012
iii. PAR Expiration 31-Dec-2016
iv. Ballot Status
Annex G
Page 14 of 15
5) Are we ready to form WG and submit PAR for Consolidated Insulating Liquid Guide?
a. Review of task force work
b. Task force recommendation
c. Scope and Purpose for PAR (if TF decides to move forward)
6) New Business
Due to the time constraints, attendees did not introduce themselves.
A motion to approve the Fall 2015 Agenda was made by Dave Sundin and seconded by Clair Claiborne. There were no objections to the approval of the Agenda.
Next, a motion was made by Clair Claiborne and seconded by Claude Beauchemin to approve the Fall 2015 Memphis meeting minutes. There were no objections to approval of the minutes.
Chair’s Remarks and Discussion:
As a review of current document status:
-Patrick McShane announced that PC57.147 is on track to be approved this year.
- Jimmy Rasco updated the Task Force that ASTM will discuss a path forward at their next
meeting on how to distinguish the difference between new and re-refined oil. Currently the
Scope of D3487 excludes re-refined oil.
Now that remaining guide will be finalized (PC57.147), the question was posed as to whether the Task Force should move forward to develop a Consolidated Insulating Liquid Guide for the five fluids: Mineral Oil, High Molecular Weight Hydrocarbon, Natural Esters, Silicone fluid and Synthetic Esters. A motion was made by Dave Sundin and seconded by Rich Simonelli to develop the guide. It was unanimously approved by the members with no abstentions.
The next step for the Task Force is to develop a scope and purpose for the guide.
No New Business was discussed and the meeting was adjourned at 10:45 am.
Annex G
Page 15 of 15
Page 1 of 9
Insulation Life Subcommittee
March 23, 2016 Atlanta, Georgia
Chair: Sheldon Kennedy Vice-Chair: Barry Beaster Secretary: Sam Sharpless
The Insulation Life Subcommittee met in Atlanta, Georgia on March 23, 2016 at 8:00 AM. Due to the size of the group, general introductions were not made. The chair requested that each person state their name and affiliation when addressing the subcommittee.
A hand count of the members at the beginning of the meeting revealed that 62 of 106 members were present. A quorum was declared.
The minutes for November 2015 Insulation Life Subcommittee meeting in Memphis Tennessee were presented. A motion to approve the minutes was made by Phil McClure and seconded by John John. Approval was unanimous.
The chair presented the proposed agenda for the meeting. A motion to approve the minutes was made by Tom Prevost and seconded by Bruce Forsyth. The minutes were unanimously approved without discussion.
A hand count of the attendance rosters after the meeting indicated a total attendances of 222 people, including 73 members. 14 guests requested membership. The complete attendance will be recorded in AMS.
H.1 Chair’s Report
The Chair, Sheldon Kennedy, welcomed everyone to the meeting. He stated that the next meeting of the committee will occur during the 2016 Fall meeting in Vancouver, British Columbia, Canada, October 23-27, 2016. The final date and location of the Spring 2017 meeting has not been finalized. Those present were directed to the committee website for details as they become available.
The Chair reviewed the scope of the Insulation Life Subcommittee. A motion was made by Sanjib Som to change section “a” of the scope, replacing “…safe insulation temperatures…” with “…recommended insulation temperatures…”. This change was seconded by Gary Hoffman. The motion carried unanimously.
The Chair thanked activity leaders for leading effective meetings and keeping activity documents up to date. He noted that the minutes for working groups should include the name of the activity, the date and time of the meeting, the number of members and guest present, the presence or absence of a quorum, a summary of the discussion, a record of the decisions made in the meeting, and the date/time/place of the next meeting. He requested that the minutes be submitted as soon as possible and no later than 30 days after the date of this meeting.
The chair reminded everyone that working groups need a 2/3 majority to submit a document for Sponsor Ballot. The subcommittee needs a simple majority to submit a document for Sponsor Ballot.
Annex H
Page 2 of 9
The following new members were welcomed and recognized; Michael Barnes, Josh Herz, Arvin Joshi, Sheldon Kennedy, Kenneth McNeish, Dhiru Patel, Álvaro Portillo, Eduardo Robles, Zoilo Roldan, Mathieu Sauzay, Jose Valencia, and Waldemar Ziomek.
The following members were moved to guest status; John Crouse, Van Nhi Nguyen, Michael Botti, Martin Hinow, and David Wood. Don Duckett was removed from the rolls at his request.
H.1.1 Project Status Reports
C57.91 IEEE Guide for Loading Mineral-Oil-Immersed Transformers
C57.91 is valid until 2021.
C57.100 IEEE Standard Test Procedure for Thermal Evaluation of Liquid-Immersed Distribution Transformers
C57.100 is valid until 2021.
C57.119 IEEE Recommended Practice for Performing Temperature Rise Tests on Oil-Immersed Power Transformers at Loads Beyond Nameplate Ratings
C57.119 is valid until 2018.
C57.154 Design, Testing and Application of Liquid-Immersed Transformers with High-Temperature Insulation
C57.154 is valid until 2022.
C57.162 - Guide for the Interpretation of Moisture Related Parameters in Dry, Gas Insulated and Liquid Immersed Transformers and Reactors
The C57.162 PAR expires December 31, 2017. The standard is valid until 2018.
1276 Guide for the Application of High Temperature Insulation Materials in Liquid-Immersed Power Transformers
The 1276 PAR expires December 31, 2016. The standard is valid until 2018.
1538 IEEE Guide for Determination of Maximum Winding Temperature Rise in Liquid-Filled Transformer
1538 is valid until 2021. The amendment was approved in September 2015.
Annex H
Page 3 of 9
H.1.2 Working Group and Task Force Reports
Working Group on PC57.162 - Guide for the Interpretation of Moisture Related Parameters in Dry, Gas Insulated and Liquid Immersed Transformers and Reactors – Tom Prevost
A meeting was held on March 21, 2016 for WG PC 57.162 Guide for the Interpretation of Moisture Related Parameters in Dry, Gas Insulated and Liquid Immersed Transformers and Reactors. (Moisture in insulation systems) Attendance Members 54 out of 86 Guests 84 Guests Requesting Membership 15 Meeting Minutes Tom Prevost, chair, introduced himself and in the interest of saving time members and guests introduction was skipped. A quorum of the working group members were present 54 out of 86. The first meeting minutes approved with Sam Sharpless making a motion and Claude Beauchemin seconding the motion. Tom Prevost also mentioned he sent out the agenda for the meeting today. Deanna Woods asked Tom Prevost to mention the criteria for membership to the group. Tom Prevost went over the Scope and Purpose of the working group. Timeline, we are using up our 4 years allotted very quickly therefore the WG is close to deadline. Tom also mentioned that extensions for PARs are becoming difficult to obtain for the WG. So we need to get things moving along. We will be circulating out the compiled documents in the next couple of months. Some Task Forces have made great progress and after the updates today we will know which task forces need to do more work. Task Force 1 - Terminology and Definitions Task Force Leader - Jeff Golarz [email protected] This section will list and define the terminology for moisture related phenomena in solid, liquid and gaseous insulating materials used in transformers and reactors. Tom Prevost asked Jeff Golarz to come forward and discuss his task force and go over the scope. Jeff sent out to TF leader and received 2 responses to date. There are 50 to 55 terms to date. Task Force 2 - Measurement and evaluation of moisture-in-gas insulation parameters Task Force Leader – Tom Melle [email protected] This section describes existing measurement, evaluation and methods of moisture and other relevant parameters in a gaseous medium. Tom is looking for scientific people to help and
Annex H
Page 4 of 9
someone with field experience with dew point and moisture and finally someone with historical research. Tom Melle gave a review of where the Task Force stands and is having a meeting for the Task Force on Tuesday. Tom had Oleg Roman give a short presentation on dew point. Task Force 3 - Measurement and evaluation of moisture-in-liquid insulation parameters Task Force Leader - Claude Beauchemin [email protected] This section describes the existing measurement and evaluation methods of moisture parameters and other relevant parameters in the liquid medium of a transformer or reactor for sequential or continuous on-line moisture assessments. • -Karl Fisher Methodology • -Consider effect of chemical solutions used for new aged and contaminated insulating liquids • -Consider types of insulating liquid • -Relative Saturation • -Consider measurement method • -Capacitive probe • -Derived from Karl Fisher • -Effect of aging (contamination) on water solubility Claude reported that there was not much change from the last meeting. Claude did not endorse Karl Fisher for getting relative saturation. Task Force 4 - Measurement of moisture in solid insulation Task Force Leader - Paul Griffin [email protected] / Ron Hernandez is taking lead Ron went over the purpose that describes the methods of measurement of moisture in solid insulation using a balance, for un-oiled insulation and a Karl Fisher method using solvent extraction or vapor extraction for oiled insulation. Ron stated that they had a motion to change the scope and it was declined and left as is. Task Force 5 - Estimation of moisture in solid insulation Task Force Leader - George Frimpong [email protected] The TF has changed the name to estimation of moisture in solid insulation. The TF is done with their section and waiting for comments. Task Force 6 - Inferring of moisture in solid insulation from measurements conducted in liquid or gaseous medium Task Force Leader - Valery Davydov [email protected] This section describes methods of inferring moisture in solid insulation from that measured in the liquid or gaseous medium for both sequential and continuous on-line measurements. A presentation was sent to Tom Prevost and presented by Tom after everyone else has presented. Task Force 7 - Evaluation of aging and end of life of solid insulation parameters Task Force Leader- Roger Wicks [email protected]
Annex H
Page 5 of 9
This section describes approaches for evaluation of parameters of end of life of solid insulation affected by moisture. The consideration of the effects of moisture, oxygen and aging byproducts in transformer aging tests is the purpose of this task force. Clarification the focus is aging in liquid not gas or dry. TF will focus on liquids. Task Force 8 - Factory/workshop application of knowledge on moisture; establishing baselines Task Force Leader - Poorvi Patel [email protected] This section describes a factory/workshop approach to the establishment of a baseline for each important moisture related parameter. Poorvi Patel reported that they have completed the work. Task Force 9 - Field application of knowledge on moisture Task Force Leader - Jim Thompson [email protected] This section lists the risks associated with moisture Jim has next step to get comments on the survey spreadsheet and has yet to have final outcome returned. Survey deals with the effect of moisture does to a transformer and sample data. Task Force 10 - Table of contents pertaining to moisture migration and moisture distribution Task Force Leader – Bruce Forsyth [email protected] Bruce is still looking for members. He got one person. Tom Prevost presented Valery Davydov’s presentation relative to Task Force 6’s work. Meeting adjourned.
Working Group for Application of High-Temperature Materials IEEE P-1276 – Roger Wicks
Sheraton Atlanta Hotel – Atlanta, Georgia USA Room – Capital Center March 22, 2016, 3:15 - 4:30pm
Roger Wicks – Chair Mike Franchek – Vice Chair Javier Arteaga - Secretary
A. Welcome & Chairman's Remarks R. Wicks
Roger opened the meeting at 3:15pm with a brief description of the scope of the Working Group.
B. Circulation of Attendance Rosters J. Arteaga
Circulated
Annex H
Page 6 of 9
C. Attendance for Quorum J. Arteaga
16 members were in attendance meeting the quorum requirement of 16 members. From the rosters at the end of the meeting there were 18 members in attendance and 73 guests. Of these 55 guests, 11 requested membership. The attendance will be reviewed and new members will be added if they meet current attendance requirements. The attendance will be recorded in the AMS system. The automated attendance records (scanning system) recorded 17 members and 55 guests. Number of members in system (for quorum purposes of 31) differed from our printed roster (of 30 members).
D. Approval of Fall 2015 Meeting Minutes – Memphis, TN J. Arteaga
David Sundin made a motion to approve the minutes as written, John Luksich seconded it and these were unanimously approved without changes.
E. Approval of Meeting Agenda R. Wicks
The agenda was approved unanimously without changes.
F. Review of IEEE 1276 D1.3 All
Aleksandr Levin requested clarification of the need for more details on section 5.5, aging test procedure for hybrid high-temperature insulation-system qualification, indicating that the already provided details in standard C57.100 are sufficient and we only need to make reference to this standard.
John Luksich also indicated that he is satisfied with the content of C57.100 as related to section 5.5 and there is no need to duplicate the information. David Sundin also agreed with John’s statements.
The Chair agreed with these comments, but pointed out that section 6, insulating materials, needs more information regarding ageing of enamels in conductors. Rick Marek indicated that for enamel, all test data available is at room temperature and in air and there is a need to describe its thermal qualification at higher temperatures and in the fluids considered, being a first step the determination of the thermal evaluation qualifiers.
Chair also mentioned that the section for insulating fluids is missing a test method to determine the thermal capability of these. Rick Marek commented that the fluids table in standard C57.154 contains information about various fluids, with reference values based only on consensus data, without the existence of formal qualification of their properties and he does not favor to repeat this table in our document. He suggested the need to add an Annex to describe the thermal qualification of the fluids.
Aleksandr Levin requested to reference standard C57.100 as much as possible, adding only new information to our document. New components added to this standard will have their description and the description of their applicability for use at higher temperatures.
John Luksich presented his contribution for Annex C, loading guide for natural esters. This annex provides a guide similar to standard C57.91, but referred to thermally upgraded cellulose insulation in natural ester fluids. The life curve is based on 130°C and 180,000 h for loss of life with data points generated by tests. Additional curves could plotted for other temperatures
Annex H
Page 7 of 9
following the same slope when the same insulation materials are used. However, if different insulating materials are used is very possible that the slope of the curve maybe different. Therefore its applicability is only for the materials used in the tests.
Joe Foldi indicated that in order to use this new curve it is necessary to determine the hot spot of the winding and the methods available in C57.91 are based in mineral oil. He indicated that with testing following the guidelines of standard C57.119 it would be possible to determine the exponents “m” and “n” applicable to natural ester fluids.
Chair requested manufacturers to provide these values if they are available. He also commented that in many cases the new insulation systems covered in the scope of this document are using temperatures well above standard, so knowledge of these exponents and the effects on hottest spot (and hence life prediction) would be critical.
Rainer Frotscher requested also that have data for other insulating materials like aramid paper or others. Chair mentioned that he has made tests with aramid paper at 240°C, but after 2 years he was still unable to generate the thermal curve for this materials per C57.100 (as the material was essentially unaffected). John Luksich commented that with cellulose insulation, the life of the transformers is based on the cellulose properties, but with aramid paper the life of the transformer is more dependent of the fluid used.
Chair will send by e-mail the draft to working members and volunteers who are still listed as guests, but because of file size will upload the draft to our website (may need to work with Sue to develop a site). The file is too large to go out via the AMS system. Guests can access this on Transformers Committee website.
The PAR of this standard expires at the end of this year and it may be required to have a draft circulated at least within the working group, members and guests, in order to be able to request an extension. The standard expires at the end of 2018.
The assignments for the elaboration of the draft are as follows; Section 5 – Insulation-system temperature ratings, test procedures, and material aging
qualification: Chair - Roger Wicks Volunteers – Mike Franchek, Ken McNeish, Tom Golner, David Stankes,
Solomon Chiang, Joshua Verdell, Dave Sundin, Jinesh Malde, and Mohamed Diaby.
Section 6 – Insulating Materials.
Chair – Javier Arteaga Volunteers – Clair Claiborne, Julio Caldeira, Patrick McShane, Dave Sundin,
Attila Gyore, Chuck Stevens, Shane Goydich, Jinesh Malde, Dustin Davis, and Mike Shannon.
Section 7 – Description of high-temperature transformers.
Chair – Mike Franchek Volunteers – Kurt Kaineder, Arup Chakraborty and Evan Langran.
Section 8 – Loading guidelines for high-temperature transformers. Chair – John Luksich Volunteers - Arup Chakraborty and Jinesh Malde
Annex H
Page 8 of 9
Section 10 – Heat run test and average winding temperature.
Chair – Juan Castellanos Volunteers – Mike Franchek
The Chairman indicated that the working group will meet again in the Fall 2016 meeting.
No further discussion, so with this, John Luksich moved to adjourn, seconded by Kurt Kaineder. Meeting adjourned at 4:11 PM.
Working Group on C57-119 IEEE Recommended Practice for Performing Temperature Rise Tests on Oil-Immersed Power Transformers at Loads Beyond Nameplate Ratings – Gael Kennedy
The document is undergoing ballot resolution. It is still on track to be completed prior to the end of 2018. This working group did not meet during the Atlanta Conference.
Submitted by: Gael R Kennedy
H.2 Old Business
Gary Hoffman presented the findings of the study group formed to “establish a title, scope, and purpose for the proposed guide for temperature measurement”.
• Proposed Title - “IEEE Guide for Transformer Temperature Measurement”
• Proposed Scope - “This guide discusses and recommends methods of temperature
measurements for liquid immersed transformers and reactors. Thermal well types as well as sensors for both indirect and direct temperature measurement are included. Temperature measurement applications including liquid, winding, LTC, other parts and ambient temperatures on transformers, reactors and accessories attached to the transformer or reactor are discussed.”
• Proposed Purpose – “This guide discusses and recommends methods of temperature measurements for liquid immersed transformers and reactors. Thermal well types as well as sensors for both indirect and direct temperature measurement are included. Temperature measurement applications including liquid, winding, LTC, other parts and ambient temperatures on transformers, reactors and accessories attached to the transformer or reactor are discussed.”
There was a question as to whether the guide could also cover dry-type transformers and this issue was discussed at length. There was also discussion as to whether this information should be included as a part of another existing standard or guide.
A motion was made by Jeff Golarz to publish the task force’s report, and this motion was seconded by Don Platts. The motion carried 62 yeas to one nay and one abstention.
A motion was made by Gary Hoffman to approve the Title, Scope, Purpose (as proposed) and submit a PAR to the Standards Association Standards Board for approval of a new project. The motion was seconded by Bruce Forsyth. Phil McClure made a friendly amendment to the motion
Annex H
Page 9 of 9
for the title to be “IEEE Guide for Liquid Immersed Transformer Temperature Measurement”. A vote was taken and the motion carried with 57 yeas, 2 nays, and 5 abstentions.
A question was raised about applicability of the new guide to reactors as well as transformers. After much discussion, there was ultimately a proposal to amend the title to be “IEEE Guide for Temperature Measurements for Liquid Immersed Transformers and Reactors” and the scope to read “This guide discusses and recommends methods of temperature measurements for liquid immersed transformers and reactors. Thermal well types as well as sensors for both indirect and direct temperature measurement are included. Temperature measurement applications including liquid, winding, LTC, other parts and ambient temperatures on transformers, reactors and accessories attached to the transformer or reactor are discussed.” Gary Hoffman made a motion to accept these changes and it was seconded by Phil McClure. The motion was carried with 46 yeas, one nay, and one abstention.
Phil McClure agreed to be the chair for the new guide and was so appointed by the Chair.
H.3 New Business The chair asked for volunteers address ballot comments for C57.12.00 by Mark Perkins wherein clause 4.3.1 makes reference to C57.91. Bruce Forsyth and Gary Hoffman were appointed to study the situation and provide a response.
H.4 Adjournment Bruce Forsyth made a motion to adjourn. Gary Hoffman seconded this motion. The meeting was adjourned.
Respectfully submitted,
Samuel L. Sharpless Secretary, Insulation Life Subcommittee
Annex J Performance Characteristics Subcommittee
March 23, 2016 Atlanta, Georgia
Chair: Ed teNyenhuis Vice Chair: Craig Stiegemeier Secretary: Sanjib Som
J.1 Introduction / Attendance
The Performance Characteristics Subcommittee (PCS) met on Wednesday, March 23rd, 2016 at 3pm with 152 people attending. Of these, 62 were members and 90 were guests. Prior to this meeting, the total membership of PCS was 81 members; therefore, quorum was achieved with 76% of the membership in attendance.
There were 20 guests requesting membership of which 13 have attended three of the past 5 meetings or two immediately preceding meetings.
Further, due to a lack of required participation in the subcommittee, 7 of the current members will be removed prior to the Fall 2016 meeting. Also, 190 of the 428 people on the roster will be removed as they have not attended any of the past 5 meetings. All of these changes will be made through the AMS system.
The Vice-Chair distributed rosters for the seating arrangement in the room.
J.2 Chairman’s Remarks
The Chair provided updates on the status of standards under PCS.
PCS is again sponsoring a technical presentation on Thursday 24th March 2016 with the topic being “Review of IEEE C57.159 - Guide of Transformers for Application in Distributed Photovoltaic (DPV) Power Generation Systems by Dr. Hemchandra Shertukde, Mr. Sheldon Kennedy and Mr. Carlos Gaytan”.
The Chair congratulated Sheldon Kennedy on being awarded fellow of IEEE. He was cited for his contribution towards Rectifier Transformer standards work.
J.3 Approval of Agenda
The Chair presented the agenda. A motion to accept as proposed was given by Dan Sauer and seconded by Ken Skinner. The chair requested comments or objections - there were none. The agenda had been earlier sent to the members by email several weeks prior to the meeting
J.4 Approval of Last Meeting Minutes
The chairman presented the minutes of the last meeting held in Memphis, Tennessee – October, 2015. A motion to accept as proposed was given by Ken Skinner and seconded by Dan Sauer. The acceptance of the minutes was passed by unanimous vote.
Annex J
Page 2 of 28
J.5 Minutes from Working Groups and Task Force
The following WG and Task Force reports were received next (the reports are below): • WG on Tertiary/Stabilization Windings PC57.158 E. Betancourt • WG on PCS Revisions to Test Code C57.12.90 M. Perkins • WG on C57.109 - Through-Fault-Current Duration V. Mehrotra • TF on Audible Sound Revision to Clause 13 of C57.12.90 B. Beaster for R. Girgis • WG on Non-sinusoidal Load Currents C57.110 R. Marek • WG on PCS Revisions to C57.12.00 T. Ansari • WG Shunt Reactors C57.21 S. Som • IEEE/IEC WG Wind Turbine Generator Transformers, P60076-1 P. Hopkinson for D.
Buckmaster • WG on C57.18.10 S. Kennedy • Loss Evaluation C57.120 R. Verdolin • WG 3-ph Transf. Connections C57.105 A. Bromley • WG on Distributed Photo-Voltaic Grid Transformers C57.159 H. Shertukde • TF on HV & EHV Transients C57.142 J. McBride • TF Short Circuit Criteria S. Patel
J.6 Unfinished (Old) Business
None
J.7 New Business
Enrique Betancourt requested a motion for PCS to approve Draft C57.158 for balloting. The WG had already approved the Draft for balloting. The motion was proposed by Dan Sauer and seconded by Marnie Roussell. The motion passed with overwhelming majority by show of hands.
The Chair requested a motion for PCS to approve Draft C57.120 for balloting. The WG had already approved the Draft for balloting. The motion was proposed by R. Verdolin and seconded by Wally Binder. The motion passed with overwhelming majority by show of hands. During the report on WG on PCS Revisions to C57.12.00 by T. Ansari – Amitabh Sarkar opined that for windfarm transformers, that this could be part of the rectifier transformer. He will discuss further with T. Ansari.
The TF on HV & EHV Transients C57.142 chaired by Jim McBride is nearing completion. The TF approved a motion that the C57.142 scope be expanded to include HV and EHV transients. Based on this the TF will begin a PAR revision for C57.142 to expand the scope to include HV and EHV transients. The PCS Chair also stated that he will request Jim McBride to be the chair of this C57.142 standard revision WG.
The Chair then requested a discussion on the TF Short Circuit Criteria report submitted by Sanjay Patel. This TF approved a motion that IEEE should develop its own guide for short circuit design criteria. It was recognized that IEC has a short circuit guide whereas IEEE has no such guide. During the discussion, the following comments were made:
Annex J
Page 3 of 28
• Wally Binder: Since many transformers have failed, specifications have been strengthened year after year by purchasers. However there has been no testing. He thought the right questions were not being asked and felt that there is need for something.
• Steve Antosz: He felt that there is a need for something similar to IEC, there should be a short circuit review criteria. He opined that IEC document could be a possible starting point.
• Dan Sauer: He stated that the short circuit criteria should not impose restriction on manufacturers. He has successfully short circuit tested his company’s products in North America, South America and China. He would hate to see criteria that would invalidate his test results.
• Javier Areatga: He wanted the requirements for short circuit review to be very clear. He expressed his availability to be vice-chair.
• Dan Sauer: He referred to Waters book on short circuit.
• Sanjib Som: He stated that hand calculation is okay for simple designs but finite element analysis is required for other types.
A motion for PCS to create a task force to prepare a PAR for short circuit was proposed by Sanjib Som and seconded by Bill Boedkar. There was overwhelming support with two abstentions and two opposing (Dan Sauer and Craig Colopoly).
Adjournment was proposed by Ken Skinner and seconded by Dan Sauer.
The meeting was adjourned at 4.15 pm.
Annex J
Page 4 of 28
J.8 Minutes of Meetings of Working Group (WG) and Task Force (TF) Reports (all unapproved)
WG on Tertiary/Stabilization Windings PC57.158 E. Betancourt
PCS Working Group on Guide for Application of Tertiary and Stabilizing Windings PC57.158
Performance Characteristics Subcommittee IEEE / PES Transformers Committee
March 21, 2016 9:30 AM
The Sheraton Atlanta Hotel, Capital South Ballroom Atlanta, Georgia, USA
UNAPPROVED MINUTES
The WG C57.158 met at 9:30 AM on March 21, 2016. 20 Members out of 28 were present so we had a quorum to conduct regular business. 76 Guests were also present and six of them requested membership. Hamid Abdelkamel Ameren Hamid Sharifnia HDR Hugo Flores CG Power Systems
Markus Schiessl SGB Trafo Victor Garcia Siemens Waldemar Ziomek PTI Manitoba Inc. The Agenda was approved with no comments or amendments.
A motion for approval of the Memphis WG meeting minutes was made by Hemchandra Shertukde, seconded by Sukhdev Walia and approved.
The Draft Guide was approved by the WG by a 2/3 majority by email vote on Jan 26, 2016.
A. Old Business
The Chair discussed the present status of Draft 5 rev. B of the Guide and the timing for submitting the draft for ballot and comment resolution. A PAR extension will not be required if the Guide can be submitted by October 17 of this year.
The draft distributed to the WG for comments received only editorial comments and had an 86% approval.
A motion to allow the WG members to conduct the comment resolution by email was made by H. Shertukde, seconded by D. Walia and passed unanimously.
The Chair proceeded to review the changes to the document and diagrams of Draft 5 rev. B with the WG.
The most significant items discussed centered on reformatting the Guide to comply with the required template and obtaining consent or recreating diagrams with copyrights.
H. Shertukde commented that the terminal markings on some of the diagrams need to be per ANSI (IEEE) not IEC.
The Chair explained how the section on “Short Answers to Frequently Asked Questions” was moved to an Annex in the Guide, as recommended by some WG members.
Annex J
Page 5 of 28
B. New Business
No new business was presented before the WG.
Question was raised as to when this document will go to ballot – Chair referenced previously timeline for submission of this Guide; the document would need to go out for ballot by the beginning of May of this year. Given the case, the Chair will apply for a PAR Extension, with the consent of the Group Members.
Question was raised on whether this document will change any of the present test requirements listed in other IEEE Standards – Chair did not foresee any changes to present testing requirements as this Guide is focused on application of stabilizing windings and provides recommendations about verification by calculation.
Motion to adjourn WG meeting was made by Mike Spurlock and seconded by Dough McCullough.
Meeting was adjourned at 10:30 am.
Respectfully submitted, Enrique Betancourt Brian Penny WG Chair Vice Chair and Acting Secretary
Working Group on PCS Revisions to C57.12.90 - Mark Perkins
Meeting Minutes
Working Group on PCS Revisions to C57.12.90
March 21, 2016, 11:00am-12:15pm
Capital North, Sheraton Atlanta
Mark Perkins, Chairman; Craig Stiegemeier, Secretary
1. Introduction of members and guests
• Mark Perkins presided over the meeting as Chair. Craig Stiegemeier was secretary. Attendance rosters were circulated for those in attendance to record their presence and confirm their membership or guest status.
2. Attendance
• A review of the adjusted membership was conducted and 32 of the 54 WG members were in attendance. This resulted in attendance of 59% of the membership, making this meeting “official” as a quorum was reached. In addition, 64 guests were present and 23 of those guests requested membership. Of those 23, 12 meet the requirement of participating in the WG and have either attended the previous 2 meetings or 3 of the past 5 WG meetings. They will be on the roster for the Fall meeting, and 11 of the current members will be removed due to a lack of participation.
3. Agenda approval • Dan Sauer made a motion to approve the agenda and Kenneth Skinger seconded the motion.
All approved the agenda. Later in the meeting, a correction was made noting that the spring meeting was held in San Antonio.
Annex J
Page 6 of 28
4. Minutes of the Fall 2016 meeting
• A review of the Fall 2015 Memphis minutes was conducted by the chair. Dan Sauer made a motion, and it was seconded by Kenneth Skinger to approve the spring minutes as written. Minutes were approved by the membership unanimously.
5. Old Business
• A survey was conducted with the recommendation of changes to standard C57.12.90 section 9.3.1. The survey was sent to the all members and guests of the WG and Performance Characteristics Subcommittee. These recommended changes will be included on the next ballot of C57.12.90.
6. New Business
• Load Tap Changer Performance Test Procedure for C57.12.90 o At the Memphis meeting, the chair of the working group on PCS revisions to
C57.12.00 discussed the need for including a performance test on load tap changers as part of C57.12.90 and indicated that this had been surveyed in his working group. It was determined that this should be covered in detail at the Spring 2016 meeting in Atlanta.
o The scope of the WG is to determine if a test is to be performed and if necessary, the procedure for performing this test.
o Joe Foldi suggested that historical information be reviewed. A task force of the WG of PCS revisions to C57.12.00 some time ago reviewed this topic, and the information covered by the TF should contain good information that would support this effort. Rainer Frotscher from Reinhausen offered to make a presentation covering background previously covered. Steve Antosz made a motion and Terry Martin seconded that Reiner make that presentation at this meeting. This was unanimously approved.
o Rainer Frotscher made a presentation. The main challenge is that there is no test in C57.12.00 for a performance test requirement after the LTC is installed and the transformer is complete, ready for other testing.
o There was a discussion that a polarity test should be performed on reactance type tap changers. This should be done after the unit is fully assembled and before voltage is applied to the transformer.
o A slow transition test was discussed. This test is common from some manufacturers, as it is referred to by unique names.
o There may be a need for a test with 85% voltage on the motor drive. o Sanjay Patel of SMIT suggested that when there are 3 single phase LTC’s, there
should be some sort of time delay test to make sure all LTC’s are operating simultaneously.
o The Chair suggested that a review of each specific type of performance test be conducted, including the process of performing the tests. Test with voltage induced at the power freq.
1. Voltage requirement (freq., voltage) 2. Voltage induced on LV winding or HV winding 3. Number of steps required
a) end to end twice b) Both directions through neutral for reversing sw.
4. Pass/Fail Criteria a) Tripping (may trip an electronic power supply) b) Monitor current and/or power?
Annex J
Page 7 of 28
c) Sound? d) DGA?
o Pierre Riffon noted that this test is well documented in IEC 76.1. o CG Power systems noted that a lower voltage should be allowed for
the test due to problems with electronic power supplies. o Sanjay Patel suggested that the test must be performed at 100%
voltage. Pierre supported keeping the voltage near to the rated voltage.
o Rainer said 80% voltage may be okay, but 10% would be a problem. Mark suggested that the voltage be 90% or higher.
o Javier Arteaga noted that some voltage variation must be allowed. o Mark Perkins suggested that following the IEC standard would be
best. o Ajith Varghese from SPX suggested that there should be a voltage
test from end to end, with 80% voltage. The IEC standard typically applies to transformers with the LTC in the HV.
o Mark called for all to agree for end to end to end as being acceptable. Ajith made and Dan Sauer seconded this approach, with unanimous agreement. Each tap change must be covered, from both direction. It could start from the neutral point or an end point.
o The voltage requirement of having at least 80% may be required due to transformers that have variable flux during LTC operation. Hakim Shamaun suggested that changing the voltage at each position is impractical. Dan Sauer suggested that the test sequence be performed at least at 95%. Chris Schalt from ComEd suggested that the LTC be tested at operating voltage. Hakim Shamaun suggested that a lot of these problems come about due to limitations of the electronic power supply. Joe Foldi suggested that 90% be used, since at no load the transformer can operate up to 100%. Mark re-focused the group into an operating target at 100% of voltage. The test should be performed at 100% voltage when possible. Setting a lower limit of 95% - 3 were opposed. 1 person thinks it should be lower than 90%.
o Dan Sauer made a motion that we set a voltage requirement of rated voltage, but not less than 95% due to test equipment limitations at rated frequency. Kenneth Skinger seconded the motion. Discussion occurred that there’s a need to identify the specific voltage being discussed. The vote on the motion was 14 in favor, 3 opposed
o There was not time to review all of the following: Test with current at load loss connection Test of motor drive without voltage on transformer Low voltage test to verify proper connections and polarity Test of limit switches or other protective devices Test of hand crank operation DGA limits or other pass/fail criteria after testing
• Other new business was called for, and none was offered. 7. Adjournment
Dan Sauer motioned and Kenneth Skinger seconded that we adjourn. The motion was accepted unanimously, and the meeting was adjourned at 12:18 pm.
Annex J
Page 8 of 28
Working Group for Revision of C57.109
Working Group for Revision of C57.109 IEEE Guide for Liquid-Immersed Transformer Through–Fault-Current Duration
Atlanta, GA, March, 21 2016 The meeting was held on Monday March 21, at 1.45 pm. Six of the ten members were present at the meeting so a quorum was achieved. There were a total of 37 people present which consisted of 6 members and 31 guests. Three guests requested membership and were added to the membership. A motion was raised by Weijun Li to approve the Atlanta Meeting Agenda. Bill Griesacker seconded the motion. The working group unanimously approved the Atlanta Meeting Agenda. A motion was raised by Weijun Li to approve the San Antonio Meeting Minutes. Bill Griesacker seconded the motion. The working group unanimously approved the San Antonio Meeting Minutes. A motion was raised by Weijun Li to approve the Memphis Meeting Minutes. Bill Griesacker seconded the motion. The working group unanimously approved the Memphis Meeting Minutes. The Working Group reviewed the request that was presented to the Chair (Tauhid Ansari) of the WG PCS Revisions to C57.12.00. Mr. Tauhid Ansari informed the WG that the request was on the agenda for discussion for their Atlanta WG meeting. There was no further discussion on this topic. The working group chair reviewed the minutes from the January 12 Memphis meeting of the task force (KTF20) of the Power System relaying Committee K. In addition to the comments received from an active group working on C37.91 which were addressed in the previous two meetings clarification was sought for one significant issue of interpretation of the impedance to use for calculation of through-fault current for Class IV transformers. The maximum short circuit is limited by the system impedance plus transformer inherent impedance, but the graph in the C57.109 guide seems to neglect system impedance, implying that only transformer inherent impedance is to be used. This comment will be addressed during the revision of the guide by adding a note to the graph regarding impedance used. The vice-chair, Hemchandra Shertukde, reviewed the Scope and Purpose of the PAR for the WG with an emphasis that the guide is to focus on over-current devices applied to limit the exposure time of transformers to short-circuit currents. Also that the focus is on establishing a guide to help coordinate these devices to relate fault duration and magnitude to withstand capability. The secretary, Jason Varnell, presented a topic for discussion relating to an alternate method to establish the damage curves by using an iterative method to determine the duration required to reach the winding short circuit temperature limits as specified in C57.12.00 section 7. This method uses the winding temperature calculation from C57.12.00 section 7.4. Javier Artega commented that this calculation was too complex with too many variables for the use of this guide and that it is best suited to keep the damage curves. There was no further discussion. The Chair then requested for additional volunteers to assist in revising the guide. Weijun Li and Branimir Petosic agreed to provide assistance in revising the guide. A motion was raised by Weijun Li to adjourn. Bill Griesacker seconded the motion. The working group unanimously approved the adjournment. The meeting adjourned at 2.20pm. The Working Group will meet at the next meeting in Vancouver.
Annex J
Page 9 of 28
Respectfully submitted Vinay Mehrotra WG Chair
TF on Audible Sound Revision to Clause 13 of C57.12.90 - R. Girgis
Unofficial Minutes of Spring 2016 Meeting of TF “Audible Sound Revision to Test Code C57.12.90”, in Atlanta, GA
The TF met at 1:45 PM, on Monday, March 21, 2016. Chairman Dr. Ramsis Girgis presided over the meeting. Secretary Barry Beaster assisted with the administrative duties.
After the Fall meeting, the membership had been adjusted to 52 members. For meeting preparation, a meeting agenda along with the unapproved Fall 2015 minutes were circulated to all members and guests of the last meeting. A copy of the prior meeting attendance for the past five years was circulated to the members for any possible oversight in recording attendance.
The meeting was attended by 26 of the 52 members and 43 guests for a total of 69 persons. A quorum was established at the end of the meeting. There were no requested agenda changes. The Fall 2015 meeting minutes had no requested changes or corrections. Since a quorum was achieved at the end of the meeting the minutes were approved with no prior modifications requested.
There were five requests for TF membership; which will be reviewed based on previous meeting attendance.
After the introductions, Chairman Dr. Ramsis Girgis presided over the technical portion of the meeting.
The first item of business was an overview of the additions & changes implemented in the 2015 revision of the C57.12.00 and C57.12.90 Standards. These are summarized in the following bullets.
Implemented additions and changes in C57.12.00:
• In the “Audible Sound Level” section of Table 18 (Routine, design, and other tests for liquid-immersed transformers)
o Added the option: “Upon purchaser’s request, the transformer may be tested for its audible load sound level”. This allows the determination of the “Total sound level” of the transformer under
pre-specified load(s). For reference levels of load sound power, Annex B was added
• Added the requirement: “The purchaser’s specification shall make it clear whether the sound levels to be guaranteed refer to No – Load noise or the Total noise of the transformer; including Load Noise”.
Implemented additions and changes in C57.12.90: • Making the following corrections when using the Sound Pressure measuring method:
o Wall sound reflection correction Per IEC but limit correction to 4 dB and # of test room cases to 5
o Near-field correction -1 dB for ONAN contour, no correction for ONAF contour
• Using the “Sound Intensity Method” o Alternative method o Use newly developed correction for 4 < (Lp – Li ) < 6 dB o Consider method invalid for (Lp – Li) > 6
Annex J
Page 10 of 28
Use Sound Pressure method with corrections • Measuring Load Noise
o Measure when requested by Purchaser o Can measure at current 60 % < I rated < 130 % and correct per IEC
• Changing the ONAF measuring contour o Per IEC, 2 m all around transformer
• Determination of Total Noise level of a transformer o Adding Load and No Load noise levels, per IEC
The second order of business was a status update of the IEC noise standard. The following bullets are the bullets reviewed at the meeting. Status of IEC Noise Standard:
• Both the “Sound Determination” Standard and “Sound Application Guide” have been published as FDIS (Final Draft International Standard) and were approved
o Received minor editorial comments only • We provided technical comments that were not considered because only editorial comments are
permissible at the FDIS stage • Will be published as valid IEC standards in the near future • The documents are widely comparable to the IEEE Standard
The next order of business was presenting a review of the proposed CIGRE working group. The following is the information shared at the meeting.
Proposed CIGRE WG: • Title: “Power transformer audible sound requirements” • Convener: Dr. Christopher Ploetner • Background
o No reference / guidance on typical transformer sound levels o This often results in technically unreasonable sound level specifications
Unnecessary high But more recently often also too low, which often requires external sound
mitigation means (sound panels / enclosures) • Scope
o Define transformer classes with respect to sound level o Development of sound level ranges for core, load, and cooling system noise level for
each of the transformer classes o Study information on sound level legislation in different countries and compare with
technical findings o Summary information on sound mitigation (mounting, panels, enclosures, walls around
units) o Transformers to be considered: o Distribution and Power transformers 10 kVA to 1500 MVA o Distinction between 1 - Ф & 3 - Ф and 50 & 60 Hz units
• Meetings o First Meeting held on March 1-2, 2016 in Germany o Next Meeting scheduled for this August in Paris o Completion of work expected within 3 years
The next item on the Agenda was the development of reference No Load and Load noise levels for Power Transformers. The Chairman announced that the Performance Characteristics Subcommittee approved, in its fall 2015 meeting, a motion submitted by this TF that the TF be assigned the task of developing new Reference sound levels; using present data and recent work in these areas. This is since this TF has
Annex J
Page 11 of 28
completed its assignment of revising Clauses in C57.12.00 and C57.12.90 related to transformer noise Standards and testing. The TF has already started this work about 2 meetings ago. The Chairman first presented an overview of the recommended reference levels of Load Noise developed over the past two TF meetings for 3 – phase power transformers. The recommended reference levels are 10 dB higher than the levels calculated per the Reiplinger equation. The Chairman then presented measured load noise data of a limited number of 1-phase transformers ranging in power ratings from 25 – 250 MVA. The data again indicates that reference levels of Load noise of 1- phase transformers can be 10 dB higher than the levels calculated using the Reiplinger equation. Before this meeting, the Chairman sent requests to a number of Power Transformer manufacturers for measured load noise data. He expects to get this data in the next few weeks. The new data will be added to the already obtained data to hopefully finalize the proposed reference levels of Load noise of 1-phase transformers in the fall meeting of the TF. Shamaun Hakim of CG Power questioned whether the data reflected the different core types 1-phase transformers can have. The Chairman commented that the data included at least two core types and many other design features that impact Load noise. Ajith Varghese asked whether the full MVA rating of an Auto Transformer or the two - winding equivalent MVA should be used in the Reiplinger equation. The Chairman responded that the calculation using the equivalent 2 – winding MVA provides an underestimation of the measured Load noise level. The Chairman then led a discussion on the purpose of developing ‘Reference Noise Levels’. He presented the following two possible purposes during the meeting:
• Providing a Maximum Noise level if no special mean (s) of noise reduction is used in the design
• Providing ranges of Sound levels for No Load and Load Noise for some transformer classes (Per CIGRE plans)
He also questioned whether there is a need for anything but the proposed Maximum noise levels. In order to further understand the need for reference noise levels, the Chairman invited utility representatives present how they define the required sound levels of their transformers. A number of them presented how each developed their specification values. There were some NEMA minus 6 to 12 dB used and some had Standards that considered adhering to local noise ordinances of sound levels allowed at the boundary or at the closest residential areas. In order to maintain flexibility each substation was typically, not individually, used to set levels, but a value to cover a wide range of installations. Mr. Joe Foldi had commented from a consultant viewpoint that ideally specifying a level would be preferred based upon the resultant sound level at the first residence. He suggested that Reference Noise levels should be used only as a measuring stick to how much lower a guaranteed noise level of a transformer is from the Reference levels. This proposal was fully supported by the Chairman. Mr. Bill Boettger stated that in some cases the no load loss evaluation may be driving the core flux density down; resulting in a lower core sound level. Dr. Girgis commented that this has to be carefully evaluated for the specific transformer design; as the resultant load noise typically increases as the size of the core and windings increase for those designs. Mr. Sanjay Patel questioned the need for separate no load and load sound levels. He asked whether one level would not be sufficient. Dr. Girgis commented that there are different sound level requirements for nighttime and daytime; which correspond to different levels of Load. Hence, Reference No Load and Load Sound levels are needed. To move forward, the Chairman stated that he intends to request a tutorial on specifying Transformer sound level requirements to be presented to the IEEE Standards group by experts in the industry who perform these tasks on a routine basis. This would help the group understand the requirements of the Industry moving forward. Mr. Bertrand Poulin asked whether there is a need for an Application Guide. This will be discussed in the fall TF meeting. The meeting was concluded at 3:00 PM. Respectively submitted, Barry Beaster, TF Secretary
Annex J
Page 12 of 28
Ramsis Girgis, TF Chairman.
WG on Non-sinusoidal Load Currents C57.110 - R. Marek
Working Group for Revision of C57.110, Recommended Practice for Establishing Liquid- Immersed and Dry-Type Power and Distribution Transformer Capability When Supplying
Non-Sinusoidal Load Currents
MEETING MINUTES (UNAPPROVED)
Sheraton Atlanta Hotel; Atlanta, Georgia USA Monday, March 21, 2016
3:15 PM – 4:30 PM
Chair: Richard Marek Secretary: Samuel L. Sharpless
The fourth meeting of this working group took place at the Capital North meeting room of the Sheraton Hotel in Downtown Atlanta. The meeting was called to order at 3:20 PM by Richard Marek, Chairman.
15 members were present in a hand count at the start of the meeting, representing a quorum of the 27 registered members. 3 members arrived later for a total attendance of 18 members. There were 55 guests on the roster and 6 of those persons requested membership.
The meeting agenda was unanimously approved and the minutes of the November 2, 2015 meeting in Memphis, TN were presented for approval with one correction by Hasse Nordman. The minutes were approved unanimously.
As a preface to the meeting, the Chair first noted that in the last meeting a considerable amount of time was devoted to a discussion of Clause 6.2 which addresses how to estimate the eddy losses for a transformer when only the test report is available. This portion of the document dates back to the first edition in 1986 and has not been revised since that edition was published. The rationale for the guidelines suggested was lost long ago. Although the scope included transformers up to 50 MVA, originally it was mostly used for small dry type transformers. Subsequent revisions removed that size limitation. However, it seems likely that a user with a unit 10 or 20 MVA and larger would likely go back to the manufacturer for more information rather than relying on the gross estimates provided by this document.
In discussion regarding comments on Draft number 3:
- The chair congratulated Tom Holifield for finding an error in equation 21 which had gone unnoticed for several revisions. The probable error was suggested at the meeting in Memphis and at the time it was decided that it would be investigated and then discussed at the next meeting. After a careful review and many emails, the problem was located. Accordingly, the Chair congratulated Tom for finding and noting the error and also for being persistent in locating the source. Tom noted that the example using the equation was actually correct. However, an error in that example was also discovered in search of the primary error. These errors will be corrected in the next draft.
- The next topic was a proposed revision to Clause 6.2: Transformer capability equivalent calculation using data available from certified test report. The group had a long discussion concerning the portion of the stray loss that should be used in the eddy loss calculations at the last meeting. The Chair agreed to summarize the discussion and modify the text accordingly. A survey was sent to all members, but the response was disappointing with only 8 of 26 members
Annex J
Page 13 of 28
responding. All were in favor of the revision. With the meeting notice, the Chair included two revision proposals after the survey. Rev 1 was the result of discussions from the previous meeting. However, after the survey additional actual test data was submitted by Professor Alvaro Portillo, prompting Rev 2 which presents the guidelines in tabular form. Just before the meeting CSA data on LVGP dry-type transformers was also submitted by Dhiru Patel as well as data for power transformers by Ramsis Girgis and Hasse Nordman. Other manufactures have also promised to submit test data. This test data will be considered for an annex so that the data used to determine the estimates for this clause is not lost.
o Bertrand Poulin spoke on behalf of Hasse Nordman observing that the suggested rules for determining the split in losses was most applicable to smaller transformers. There was no dissention and the chair agreed to add this information in the preface to the table.
o The chair noted that the test data provided by Professor Alvaro Portillo demonstrates how difficult it is to characterize losses in a simple way. The data does not always follow the factors proposed in the original guidelines and not in the revision either. The chair expressed concern that revising the guideline to a table could give the impression of precision when it is in fact only a gross estimate that is generally very conservative.
o Jagdish Burde noted that neither row of the first table accounted for the precise 4:1 ratio and suggested that one of the rows include this ratio.
o Chuck Johnson of ABB expressed support of the tables as presented. o Aleksandr Levin recommended that the title of the tables should be “estimate of
distribution of total stray loss…” and he suggested combining certain rows of the second table.
o Mr. Levin also suggested changing “other stray losses” to be “stray losses outside of winding”. The chair noted that the existing wording better agrees with the wording elsewhere in the document. Sanjib Som proposed adding a note below the tables that defines “other stray losses”
o Vijay Tendulkar suggested combining the two tables. He also asked if note “e” should be 300% instead of 400%.
o The chair requested that anyone having additional data send it to him for comparison. Tim Mai and Arthur Cumella both said that they would provide data.
o Jagdish Burde suggested a need for voltage differences to be reflected in the table. The Chair requested that he send more information for consideration.
o Dhiru Patel said that data he supplied shows the table recommendation to be high compared to general purpose transformers. The chair reiterated that the table was intended to be conservative.
o Shamaun Hakim questioned the values in the table for larger transformers. The chair noted that the values were based around the data that was provided. He also noted that foil eddy losses increase dramatically with higher currents.
o Sheldon Kennedy stated that the numbers in the guide should be conservative - users should contact the manufacturer if more precision is required. Also, he cautioned against changing definitions because it can affect other standards.
New Business
- The chair noted that the PAR expires in December 2018. However, the document is nearly complete. Working Group approval will be required to request subcommittee approval before going to ballot, so the members should expect a survey ballot requesting approval before the next meeting.
- In preparation for the ballot, the chair requested; o Please verify personal data so that the ballot is correctly delivered. o Please look at the document now and be ready for ballot.
Annex J
Page 14 of 28
- The chair requested volunteers to double-check the examples in the document. The following volunteers were noted
o Dhiru Patel o Aleksander Levin o Others may be requested to assist
The meeting was adjourned at 4:15 PM.
WG on PCS Revisions to C57.12.00 - T. Ansari PCS Working Group on General Requirements C57.12.00
Performance Characteristics Subcommittee
IEEE / PES Transformers Committee
March 21, 2016 4:45 PM The Atlanta Sheraton Hotel
Atlanta, Georgia, USA
UNAPPROVED MINUTES The PCS Working Group on General Requirements for C57.12.00 met on Monday, March 21, 2016. The Chair Tauhid Ansari called the Group to order at 16:45 and explained purpose and scope of the WG. 46 Members and 84 guests were present, and as Working Group membership stands at 80 members, we did have a quorum and were able to conduct official business. The following 15 guests requested membership:
Brian Penny ATC Christopher Baumgartner We Energies Jarrod Prince ERMCO Jeremiah Bradshaw Bureau of Reclamation Kirk Robbins Exelon Generation Kristopher Neild Megger Marcos Ferreira LADWP Matthew Weisensee PacifiCorp Rodrigo Ronchi WEG-Voltran Ryan Musgrove OG & E Ryan Thompson Burns and McDonnell Selvaro Pugazhenthi VA Transformer Sukhdev Wallia New Energy Power Company Thomas Holifield Howard Industries Thomas Melle HIGHVOLT Tim-Felix Mai Siemens AG
The Agenda and the minutes from the Memphis meeting were approved (M. Perkins, K. Skinger), with no comments or amendments. Agenda Items were covered as follows. 1. OLD BUSINESS
A. WG Item 104, Sec 6.1 – Discuss the P dimension that affects the interchangeability of bushings.
Annex J
Page 15 of 28
This request comes from Keith Ellis. Discussion on this item started during the last WG’s. The Chair reported that he reviewed the subject with Steve Snyder, Chair for Std. C57.12.00, and that it was Steve’s impression that the subject does not belong neither to C57.12.00 nor to C57.12.10. Discussion within the WG followed. Jeff Ray described the case of having an LV bushing failure where components with similar electrical characteristics did not fit within the space for CT’s. In his opinion, turrets dimensions is a transformer manufacturer issue. As no motion was stated, the Chair agreed to continue reviewing the subject with other TC officials.
B. Sec.4.1, Sec.7.0 Clarification on Short circuit condition This item was brought up by Vinay Mehrotra, from WG C57.109. It was requested to define the worst condition to be considered for short circuit calculations. As under over-excitation of the transformer 110% rated voltage can be applied, it was asked if that pre-fault voltage should be considered, instead of the rated voltage. Mark Perkins and Javier Arteaga pointed out that C57.12.00 applies to transformer design and that the 110% over-excitation requirement is a system condition that should be considered apart. Jason Varnell, Kenneth Skinger and Jill Holmes were in favor of considering a pre-fault voltage between 105% and 110%. Joe Foldi explained how Canadian standards scaled down from 110% pre-fault voltage to 100%, considering that the last provides enough margin. He recommended also to consider practical consequences from raising the pre-fault voltage. Some users specify the pre-fault voltage they expect. A motion was brought up (Ajit Varghesse/Vinay Mehrotra) as to include a statement in C57.12.00 specifying that for short circuit calculations 1.0 PU is the pre-fault voltage and that anything different has to be specified by user. The motion was amended by Mark Perkins to start first with a survey among the WG’s Membership about this proposal. 26 Members approved the motion, with none opposed. The Chair agreed to conduct the survey before the next meeting. 2. NEW BUSINESS Shamun Hakim brought up that in windfarms specifications an unnecessarily high LV side fault capacity is required and if it should be considered in C57.12.00. The Chair agreed to survey about this question among the WG Membership. With no new business and having completed the agenda the meeting was adjourned at 5:30 PM (K.Skinger/E.TeNyenhuis). Respectfully submitted, Tauhid Ansari Enrique Betancourt WG Chair Secretary
Shunt Reactors C57.21 - S. Som
IEEE Standard Requirements, Terminology, and Test Code for
Shunt Reactors Rated Over 500 kVA C57.21
Atlanta, GA USA Sheraton Atlanta Hotel
Tuesday March 22, 2016 The working group met in the Capital Center room of the Sheraton Atlanta Hotel on Tuesday March 22, 2016, at 9:30 AM. The meeting was called to order at 9:30 AM by Chairman Sanjib Som
Annex J
Page 16 of 28
There were a total of 51 participants: 11 Members and 40 Guests out of which 7 Guests requested membership. The meeting was opened with the introduction of participants and the circulation of attendance
roasters. 11 of the current 16 (please check) WG Members were present and quorum to carry out business was
met. Meeting notes:
Meeting Agenda
• Meeting agenda, which was circulated among members and guests on March 4th, 2016 by email, was presented to the audience.
• Motion to approve the agenda was made by Hemchandra Shertudke and seconded by Enrique Betancourt.
• There were no objections or comments and the agenda was approved. Minutes from previous meeting
The minutes from the F15 meeting in Memphis, which were circulated on March 4th, 2016 by email, were presented to the audience.
Motion to approve the meeting minutes was made by Klaus Pointner and seconded by Enrique Betancourt.
There were no objections or comments and the F15 meeting minutes were approved. Old Business:
1. Luc Dorpmanns: Presentation of proposal for vibration test limits: This topic has been discussed
in previous meetings. The proposal includes comparison of what currently in the standard to IEC limits and also refers to related work by CIGRE WG. Proposal intended for discussion. In IEEE standard it covers units larger than 50 MVAr and 115 kV at rated voltage, with specific details on where to measure the vibration. It specifies average values and maximum below 200 µm peak-peak. In IEC it is a type test, for all shunt reactors at maximum operating voltage and less specific about number of points or location. Discussion to lower the limits took place at CIGRE and rejected. This presentation with full details will be distributed to Members and Guest for information and further discussion.
Proposal for revision of C57.21 includes for vibration test to be a design test instead of ‘other’-test, for all reactors and eliminate the average requirement, only stating the maximum pk-pk.
Comment from Mathew Welsensee: shunt reactors would vibrate more or less than other of the same identical design. Example in size: 3-phase 245 kV 15 to 30 MVAr.
Comment from Bertrand Poulin: support the idea of each reactor being tested as shunt reactor units don’t behave the same even of the same design; however sound is more sensitive to detect problems than vibration. Example in size: under 15 up to 765 kV; typically 30 to under 40 MVAr
Annex J
Page 17 of 28
Comment from Dharam Vir: every shunt reactor behaves differently; vibration test should be routine test and limit could be lowered.
Comment from Mike Sharp: Vibration tests should not apply to dry-type air-core shunt reactors.
2. Presentation by Gael Kennedy: Comparison of Section 4 of C57.21 to other transformer standards referring back to basic standard C57.12.00. The question is how to consider the C57.21 standard: as stand-alone or as part of a group referring back to C57.12.00. How to reference other standard within the standard? Note on this topic will be circulated by the WG Chair to the membership for inputs. Comment from Bertrand Poulin: clarification on the scope of C57.21 is needed to decide whether the standard is stand-alone or covered by C57.12.00. Does it include requirements? The title cover ‘requirements’.
Comment from Klaus Pointner: since C57.21 covers both oil-filled and dry-type, this standard should be stand alone. C57.21 should combine requirements for both and cover full scope for requirements and test.
3. Dieter Dohnal: Presentation on tap changer as applied to variable shunt reactors: this presentation covered different aspects on the application and use of OLTC on variable shunt reactors including construction, selection, regulation schemes, special requirements, etc. The full presentation will be send to the WG for information.
Other comments and input: Comment from Shamaun Hakim: on section 4.4.2: maximum allowed cooling air temperature for altitude higher than 3300 ft need to be lower. Need further clarification from Shamaun. Comment from Shamaun Hakim: on testing losses and analytical correction to reference temperature. Need further clarification from Shamaun. Standard is now available for distribution by WG Chair in Word and pdf formats for the subgroups to
start working on the modifications and revisions.
Subgroups as set by the Chair to work on different sections of the standard. The following members volunteered to work on:
Sections 1 through 4: Sanjib Som, A. Del Rio. Sections 5 through 9: David Joe Meisner, Subash Tully, Rogerio Verdorin, Raj Ahuja. Section 10: Bertrand Poulin, Shamum Hakim, Subash Tully, Klaus Pointner, Kris Ploetner Sections 11: Dharam Vir (new) Section 12: Mike Sharp Pictures: Rogerio Verdolin. Members and guests were requested that if anyone wished to participate in the above groups or if anyone’s name is not included inadvertently in the list, they were to contact the WG Chair.
Annex J
Page 18 of 28
Meeting was adjourned at 10:45 am. Next meeting: Fall 2016, Vancouver, Canada October 23-27. Comments, as sent, submitted prior to the meeting by email from Dr. Christoph Ploetner:
1. Comment to Bertrand’s Linearity proposal: It is a more practical adoption of IEC 60076-6, Annex B and I suggest to consider it for the revised standard. I agree with Enrique that it would be good to see some more test data for the DC method (tests for 1~ and 3~, not just simulations) before bringing it into the standard.
2. Loss evaluation based on power factor was extensively discussed during last revision of C57.21
but at the end not followed even though it is commercially probably the best. Loss guarantee at rated voltage remained applicable for simplicity reasons but also because this situation is the closest to service conditions. IEC guarantees losses at rated current in order to protect the manufacturer commercially. As whatever it is, quantities are within narrow bands, it technically therefore doesn’t matter and is more a commercial subject.
3. I volunteer to re-write section 10.6 ‘Audible-sound-level test’ and will provide this before the
Vancouver meeting. I will take latest changes in IEEE C57.12.90 and IEC sound standards into consideration – as I did for the recent IEC/IEEE HVDC standard revision.
4. I suggest Luke Dorpmanns to re-work section 10.7 and Klaus Pointner 10.8. As per San Antonio
discussion one major change here would be the vibration test becoming routine as fingerprint. Respectfully submitted, Chairman: Sanjib Som ([email protected]) Secretary: Arturo Del Rio ([email protected])
IEEE/IEC WG Wind Turbine Generator Transformers, P60076-16 - D. Buckmaster
WG P60076-16 Standard Requirements for Wind Turbine Generator Transformers
Chairman: David Buckmaster; Vice Chair: Phil Hopkinson; Secretary: Donald Ayers
The Working Group on Wind Turbine Generator Transformers was called to order at 9:30 a.m. EST on Tuesday, March 22, 2016 at the Sheraton Hotel in Atlanta, Georgia. There were 110 attendees, 34 members were present of a membership of 50 and 76 guests. A quorum was present. The chairman, David Buckmaster, was unable to attend the meeting and the Vice Chairman ran the meeting.
The following guests requested Membership on the Working Group. After two consecutive meeting attendance they will become members.
• Nikita Dave, Georgia Transformer, Rincon, GA • Jose Gamboa, Siemens Energy, Richland, MS • Mark Gromlovits, EMC OEM Products Division, Bristol, VA • Mohammad Iman, MGM Transformer Co., Commerce, CA • Brad Jensen, Burns & McDonnell, Kansas City, MO
Annex J
Page 19 of 28
• Branimir Petosic, Boiler Inspection & Insurance Co., Toronto, Canada • Stephan Voss, Siemens AG, Nuremberg, Germany • Shawn Wu, Shihlin Electric, Pasadena, CA • Michel Veillette, Morgan Schaffer, LaSalle, QC, Canada • Waldemar Ziomek, PTI Manitoba, Inc., Winnipeg, MB, Canada
Larry Lowdermilk made a motion to accept the agenda for the meeting and was seconded by Rogerio Verdolin. The motion passed unanimously.
Larry Lowdermilk made a motion to accept the minutes from the Fall 2015 meeting and was seconded by Rogerio Verdolin. The motion passed unanimously.
The vice-chairman gave a summary of the status of the standard. The standard has been commented on by both IEEE and IEC ballot groups. The IEEE comments have been addressed and resolutions recommended. The IEC commented on the IEEE resolved version of the standard and the comments resolved by IEC. The document was returned to the committee. The modified document was reviewed by the meeting attendees which could see both the IEEE and IEC comments.
A motion was made to by Larry Lowdermilk to accept the changes to the document as reviewed so that the modified document can be recirculated to both IEEE and IEC ballot groups. Only changes to the document are reviewable by both groups. The motion was seconded by Rogerio Verdolin and passed unanimously.
A discussion was held on the timing of the next step and it was concluded that the recirculation could not be completed before the PAR expires.
A motion was made by Larry Lowdermilk and seconded by Rogerio Verdolin to request a two year extension for the PAR. The motion passed unanimously.
With no new business, the meeting was adjourned at 10:25 a.m.
A working group session is planned for the Vancouver meeting.
Respectfully submitted,
Donald E. Ayers Secretary
WG on Semi-Conductor Rectifier Transformers -C57.18.10 - S. Kennedy
Task Force for Semi-Conductor Rectifier Transformers
Meeting Minutes – March 22, 2016 Atlanta, Georgia, USA
Sheldon P. Kennedy - Chair The Task Force met on Tuesday, March 22, 2016 at 11:00 AM with 5 members present and 41 guests. 9 guests requested membership. Sheldon Kennedy chaired the meeting. This was the first regular meeting for a Task Force since the spring of 2011 in San Diego.
Annex J
Page 20 of 28
The Task Force was formed to develop a new PAR for a revision that is due for the standard. A quorum was achieved with 5 of the 6 members present. The minutes and agenda were approved. The meeting concentrated on completing a new PAR. The scope of the original standard was modified to be sure to include transformers for rectifier, inverter, furnace and adjustable speed drive loads. It was requested to lower the Scope of the PAR to “100 kW and above” from “300 kW and above” for single phase loads Also, three phase loads were lowered from “500 kW and above” to “100 kW and above”. Also, Dhiru Patel had previously requested that we add to the excluded list “If a user connects mixed loads with more than 10% non-converter fundamental frequency power content, IEEE C57.110 shall apply”. This was modified to show the exclusion as: -mixed loads of more than 10% non-converter fundamental frequency power content. All other portions of the previous C57.18.10 Scope will be kept. There was discussion about whether a joint document with IEC 61378-1 Converter Transformers – Part 1, would be of interest. The Task Force felt this was premature and that while there are many common treatments in both documents, there are also significant differences at this time. A revision of IEEE C57.18.10 must be accomplished by January of 2019, so there is little time for this. The Chair will ask IEEE to procure a copy of IEC 61378-1 for harmonization work on the new C57.18.10 revision. While this work is being accomplished, notes will be made of common and different treatments for possible harmonization of the two documents into one in the future. The Chair again made a call for additional Task Force/Working Group officers. William Whitehead of Fuji Electric had previously volunteered to be Vice Chair to help with the work. David Walker of ABB volunteered to be Secretary of the Task Force and succeeding working group. Future topics for addition to the revision of the document plan to include phase shifted windings; electrostatic ground shields; interphase transformer applications and why circuit breaker interaction and snubbers; and non-classical harmonics and waveforms due to new inverter and adjustable speed drive topologies. The Chair will complete the PAR form for submission to the NesCom. There were no further comments. The meeting adjourned at 12:15 PM. Submitted by; Sheldon P. Kennedy Chair
WG Loss Evaluation C57.120 - R. Verdolin
Spring 2016 IEEE Transformers Committee Meeting — Atlanta, GA, USA
Annex J
Page 21 of 28
PC57.120 LOSS EVALUATION GUIDE FOR DISTRIBUTION AND POWER TRANSFORMERS AND REACTORS
Tuesday, March 22nd, 2016 — (11:00 AM – 12:15 PM)
Chair: Rogerio Verdolin Vice-Chair: Rod Sauls Par status: Par approved Par expiration date: December 31, 2016 Current draft being worked: D15
1. Attendance a. Members: 12 b. Guests: 90 c. Guests granted membership: XX d. Guests requested membership XX e. Total (Members + Guests): 102
2. Meeting was called to order promptly at 11:00am on March 22nd, 2016. 3. Rosters were passed out and introductions were made. 4. Rogerio asked for a motion to approve the minutes of the Memphis meeting. Wallace Binder
made the motion to approve the minutes. Ewald Schweiger seconded the motion. 5. Attendance was checked to see if a quorum was established. There were 19 active members on
the roster and at least 10 were needed for a quorum. There were 12 members present. 6. Rogerio asked for a motion to approve the agenda. Eduardo Garcia made the motion to approve
the agenda. Wallace Binder seconded the motion. 7. Both the minutes and agenda were approved. 8. Rogerio discussed highlights from the latest draft and mentioned corrections to some of the
formulas in the document. 9. Wallace Binder made a presentation on the alternate methods of loss evaluation for non-vertically
integrated companies. 10. Question was asked about the differences of vertically integrated vs. non-vertically integrated.
Wallace answered basically saying the vertically integrated has generation, transmission and distribution components while non-vertically integrated does not have one or more of these components.
11. Rogerio mentioned the previous IEEE legal review/comments on how to use $$ in the document. 12. Wallace Binder made a motion to that the WG approve the latest draft to go to ballot. David
Murray seconded. 13. All 12 attending members voted to approve for ballot. 14. Rogerio discussed next steps in the process and Gary Hoffman made the comment that he would
need to get on the PCS subcommittee meeting agenda for approval as well. 15. Rogerio asked for volunteers to help with the ballot resolution. The following persons
volunteered: Marcos Ferreira Wallace Binder Rogerio Verdolin Rod Sauls Hamid Sharifinia S. Dev Walia
16. Meeting was adjourned.
Respectively submitted, Rogerio Verdolin, Chair Rod Sauls, Vice-Chair
Annex J
Page 22 of 28
WG 3-ph Transf. Connections C57.105 - A. Bromley
Spring 2016 IEEE Transformers Committee Meeting — Atlanta, GA, USA C57.105 – IEEE Guide for Application of Transformer Connections in Three-Phase Electrical Systems
Tuesday, March 22nd, 2016 — (1:45 PM – 3:00 PM)
Chair: Adam Bromley Vice-Chair: Rogerio Verdolin
1. Attendance • Members: 10 • Guests: 16 • Guests requested membership: 2 (will check attendance records) • Total: 26
2. The meeting was called to order at 1:45 pm on Tuesday, March 22nd, 2016. 3. Chair presented agenda for the meeting. A motion to approve agenda for the meeting was
made by John John and was seconded by Samuel Sharpless. 4. A motion was made by John John to approve the meeting minutes from the Working Group
Spring 2015 meeting in Memphis, TN. The motion was seconded by Samuel Sharpless. By unanimous vote, the minutes were approved.
5. Par status: Par expires December 31st, 2019, which represents 4 meetings before we have to conclude the guide. The PAR was approved March 2015.
6. Rogerio Verdolin and David Walker have provided the references regarding ferroresonance. David Jacobson, from Manitoba Hydro, an expert on ferroresonance and one of the authors of the Cigre guide, has agreed to help Rogerio and David to find appropriate, modern, references on ferroresonance. We are also going to look for more modern, easy to obtain, general information on transformer connections to supplement or perhaps replace some the out-of-print textbooks listed in the current references.
7. The references regarding ferroresonance are: [1] Mork, B.A., Morched, A.S., and Walling, R., “Modelling and Analysis Guidelines for the Investigation of Slow Transients in Power Systems: Part III-Study of the Phenomenon of Ferroresonance”, Slow Transients Task Force of IEEE Working Group on Modelling and Analysis of System Transients Using Digital Programs, July 27, 1996. [2] Ferracci, P.,“Ferroresonance”, Groupe Schneider: Cahier technique no 190, pp. 1-28, March 1998. web site: http://www.engineering.schneider-electric.se/Attachments/ed/ct/ferroresonance_en.pdf [3] Jacobson, David A. N., “Examples of Ferroresonance in a High Voltage Power System”, Conference Paper, IEEE Power Energy Society Annual meeting, Toronto, Canada, July 2003. [4] Dugan, Roger C., “Examples of Ferroresonance in Distribution Systems”, Conference Paper, IEEE Power Energy Society Annual meeting, Toronto, Canada, July 2003. [5] CIGRE 569 - Resonance and Ferroresonance in Power Networks, Working Group C4.307, February 2014, ISBN: 978-2-85873-264-7.
Annex J
Page 23 of 28
8. The Chair will add the previous ballot comments provided by John John to the new draft. Most of comments were editorial.
9. The Chair has shown the revision he has made in the draft by using the IEEE style guide. The Figures were provided by Samuel Sharpless using AutoCAD/jpeg format. Some Tables were changed to Figures. Symbols will be changed to text, such as Transformer connections: delta, wye, zigzag, etc.
10. The Chair asked for volunteers to help to review the draft. 11. John John and Samuel Sharpless volunteered to review Sections 4 and 5, Electrical
Connections and Magnetic Circuits. 12. Mike Thibault volunteered to review Section 6, Harmonic Currents and Voltages. 13. Daniel Mulkey and Benjamin Garcia volunteered to review Section 7 - Primary Faults,
Section 8 - Unbalanced Loads and Secondary Ground Faults, and Section 10 - Unsymmetrical Banks and Special Connections.
14. The Chair/Vice-Chair will contact David Jacobson to find out if he would be able to help us review Section 9 - Ferroresonance. David Walker will also provide some information regarding his experience with ferroresonance.
15. The WG still need to work on the bibliography. References for transformer connections were provided by members such as: Electric Power Transformer Engineering, The J&P Transformer Book, and others. Other GE and ABB references will be provide by members to be included in the draft.
16. The meeting adjourned at 2:30 PM. Respectively submitted, Adam Bromley, Chair Rogerio Verdolin, Vice-Chair
WG on Distributed Photo-Voltaic Grid Transformers C57.159 - H. Shertukde
Working Group PC 57.159 Guide on Transformers for Application in Distributed Photovoltaic (DPV) Power Generation Systems
Unapproved Meeting Minutes Atlanta, GA, USA
Tuesday, March 22, 2016 AGENDA 1. Roster and Quorum Verification 2. Meeting Agenda Approval 3. Approval of the F2015 Memphis Meeting Minutes 4. Update on the ballot results and comment resolution of the Guide Draft 6: Recirculation #1 and recirculation #2 5. Guide Draft 6.2 submitted to RevCom 6. Discuss the next WG meeting in Vancouver 7. New Business The Working Group met in the Capital North room of Sheraton Atlanta Hotel. This was eights meeting of the WG. The meeting was called to order at 1:45 pm by Chairman H. Shertukde. The meeting was convened with 53 participants present, 18 of them are members (this constitutes a quorum out of 30 current members in the roster).
Annex J
Page 24 of 28
The Meeting Agenda was approved. The Fall 2015 Memphis Meeting Minutes were approved. 1. Chairman H. Shertukde updated WG on submission of Guide Draft 6.2 after recirculation # 2 to RevCom. WG officers expressed appreciation to WG members for the active participation in the development of the Guide. H. Shertukde mentioned about the tutorial our WG will present to the IEEE TC general session in Atlanta. Thanks to C. Gaytan and S. Kennedy for their contribution. Chairman also informed the group the he has presented the WG position paper to International Conference on Electrical, Electronics, and Optimization Techniques (ICEEOT) in India. The position paper will be published in IEEE Explore. 2. Secretary A. Levin updated WG on the results of the Guide ballot recirculation # 1 and # 2: - just one individual has disapproved the Guide Draft 6.1 and provided 4 comments related to the definitions. The comments were accepted and Draft 6.2 was submitted for the ballot recirculation # 2. - just one individual has disapproved the Guide Draft 6.2 and provided 2 comments. One comment related to the definitions was accepted, but other comment was rejected as it was out-of-scope of the recirculation # 2 (comment on the unchanged portion of the standard after 75% approval vote has been achieved). - the Guide Draft 6.2 has been submitted to the IEEE RevCom for approval. Our PAR will expire on 31 December 2016. S. Kennedy commented that we need monitoring comments from RevCom, address them and receive confirmation that resolution is accepted. P. Hopkinson recommended to watch PAR expiration date in order to submit the PAR extension, if necessary, on time. 2. A. Levin reviewed the content of the Guide Draft 6.1. 3. A. Levin has presented and WG discussed the list of the additional topics that were indicated during the Guide development for the future consideration. 3.1. Add 5.1.4.1 Winding Connections and Utility Consideration. 3.2. Fast transient voltage in PWM (pulse-width modulation) inverters due to IGBT commutations. V. Tendulkar explained his suggestion for specific consideration of aging of insulation subjected to multiple IGBT commutation impulses. He referred to known problems with motor conductor insulation. S. Walia commented that similar phenomenon observed in relation to cables in wind power AC-DC systems with inverters. 3.3. Transformer sizing based on loading. P. Hopkinson commented that he is going to propose to Distribution Transformers SC to form a TF to investigate the loading of transformers up to 10 MVA based on application (including renewables), geographical region, etc. He thinks that we can find end users that will share available information in order, eventually, to develop justified recommendations on the transformer sizing. 3.4. Does electrostatic shield really necessary in all cases? V. Tendulkar agreed that it’s possible to develop more specific recommendations on the application of shields in DPV transformers. 3.5. Improve recommendations on Winding Configuration and Impedance Requirement for 3-winding transformers. 3.6. Include consideration of other available inverter and system topology technologies (e.g. string inverters). 3.7. Grounding of skid mounted transformers. B. Ensen informed that he forwarded this question to Distribution Transformers SC. 3.8. Reverse power flow transformers. A. Levin informed on CIGRE Working Group A2.50 “Effect of the distributed energy sources and consequent induced reverse power flow (step up) on transmission and distribution transformers”.
Annex J
Page 25 of 28
3.9. B. Petosic proposed consideration of the Guide on transformers connected to inverters (battery energy storage, fuel cell, etc.) J. Mango commented that large battery storage systems (up to 20 MW) can have multiple charge – discharge operations per hour and its effect on transformers needs to be addressed. P. Hopkinson said that, during the meeting of WG on rectifier transformers, it was proposed to create a TF to investigate a feasibility of the Guide for transformers connected to inverters. 4. The decision on the IEEE TC Fall 2016 WG meeting in Vancouver will be taken later based on the results of RevCom review of the Guide. With no more old or new business the Meeting adjourned at 3:00 PM. Chairman: H. Shertukde Vice-Chairman: M. Sauzay Secretary: S. Levin
TF on HV & EHV Transients C57.142 - J. McBride
IEEE / PES Transformers Committee
Performance Characteristics Subcommittee TF to Investigate the Interaction between Substation Transients
and Transformers in HV and EHV Applications Atlanta, Georgia
Tuesday, March 22nd, 2016 3:15 PM – 4:30 PM
Capitol North Chairman – Jim McBride Secretary – Tom Melle
1) Welcome and Chair’s introductory remarks. 2) Circulation of Attendance Sheets 3) There were 127 individuals in attendance with 28 members present. Quorum was achieved. 4) Fall 2015 Meeting Minutes presented and approved with no opposition 5) Spring 2016 Agenda presented and approved with no opposition 6) Chair mentioned the summary paper will be posted to the TF website. Sue McNelly did so
immediately. Thank you Sue! 7) Chair began presentation and discussion of three primary issues from the Fall 2015 meeting. All
three issues are addressed in the latest revision of the TF summary paper: I. The Chair presented a few example traces of a three phase capacitor switching
transient from the TF paper, noting that capacitor switching can produce three types of interactions. Simple LC interaction, back to back interaction, and traveling waves with reflections. The second two were most likely to excite lightly loaded transformers to resonance.
a) Phil Hopkinson suggested that (whenever possible) current measurements and traces from all three phases be included in the paper. Chair was not opposed to this, but no motions were made to make changes to the TF summary paper.
b) The example oscillations presented ranged from 1.1 kHz (base) to 52 kHz.
Annex J
Page 26 of 28
c) Waldemar Ziomek commented that phases A & C are opposite polarity due to transformer interaction and reflection of waves. The chair also showed a trace of an energization transient which had a much higher frequency voltage waveform. Approximately a 500ns rise with a 580 kHz ring.
II. Mitigation Methods - Chair reviewed the mitigation sections of each of the failure categories in the TF summary paper. Chair commented that RC snubbers are not commonly used on HV/EHV circuits. Phil Hopkinson agreed it is difficult to mitigate transients at higher voltages with snubbers and supports capacitor use as a mitigation tool. It was noted that special emphasis should be applied whenever possible to monitor and mitigate high frequency transients.
a) Pierre Riffon made a motion for the TF paper to include additional impulse testing as a possible mitigation method (e.g. non-impulsed windings are typically shorted to ground in the factory – suggest “real world” shorting using simulated impedance of system during test). Motion was seconded by Waldemar Ziomek and passed with no objections.
III. Chair explained the separation of Conclusions and Recommendations sections in the paper. Chair stated that the TF paper is nearly finalized and must undergo review for IEEE Transactions submission. Ideally the paper will be utilized in an upcoming Committee tutorial.
a) Phil Hopkinson inquired regarding the duration of magnetization current and relationship to core saturation. Comments were received stating the more likely contributors to failure are series resonant voltage, air core inductance, and leakage flux. Phil asked if the TF paper should describe these resonant interactions that cause failures. The Chair pointed out that this interaction as a failure mode is included in the GSU backfeed section of the paper, noting that generator step-up transformers operating in back feed mode may be excited to resonance by system transients.
b) Bertran Poulin commented that the low frequency response of transformers is easier to model; as high frequency response requires a more detailed model. Chair added that CIGRE continues to develop “white-box” transformer models, but measurements are needed in order to validate these models. Bertran commented further on the importance of measuring the magnitude of the transient voltage at the transformer terminal – given this information, “it is imperative that manufactures design transformers with necessary immunity”.
c) Phil Hopkinson commented on Figure 4 (Disconnect Switch Bus De-Energization Transient) that re-striking can last up to several seconds, leading to many consecutive restrikes per disconnector operation. Chair agreed and commented that although restrikes during closing operations are generally much shorter, these closing operations may also excite internal resonance due to multiple re-ignitions and re-strikes.
d) Vijay Tendulkar commented that core saturation is dependent upon total circuit impedance and that very different conditions can arise in differing circuits from the same voltage transient.
8) Motion for Task Force to move forward with submission of the paper to IEEE made by Sanjib Som. Motion was seconded by Phil Hopkinson with no objections.
9) New Business – none presented
10) A motion to adjourn the meeting was made by Pierre Riffon and seconded by Bertran Poulin. The meeting was adjourned at 4:15 PM.
Annex J
Page 27 of 28
Respectfully Submitted, Tom Melle, TF Secretary
03/22/2016
TF on short Circuit Criteria - S. Patel
Task Force Short Circuit Criteria Atlanta GA, USA – Mar 22, 2016
Ed teNyenhuis, Mar 23, 2016, Rev 0 The Task Force met at 4.45 PM in the Capital South Ballroom on Mar 22, 2016
At the first meeting of the TF in Memphis, it was approved by the TF that IEEE should have some
short circuit design criteria in the standards. The subcommittee reviewed this and then gave the TF the task to give recommendations on how the short circuit criteria should be done in IEEE standards and to possibly collaborate with IEC. This was the purpose of this meeting.
Sanjay Patel was the Chairman of the meeting and Ed teNyenhuis was the secretary.
An attendance roster was circulated with 6 requesting membership. There were 73 persons total in
attendance with 24 members. The membership list had 41 members so there was quorum.
The minutes from the previous meeting were approved (initiated by Phil Hopkinson and seconded by Krzysztof Kulasek).
The initial suggested options were presented by the Chairman: Dual logo guide with IEC (they are revising the standard now) Do our own guide where we develop it on our own Do our own guide where we take the wording from the new IEC guide that fits with IEEE Add wording to some other IEEE Std or guide (C57.12.90?)
Joe Foldi presented again the background of the short circuit design criteria request: Transformers must be designed for short circuit but what is the criteria to use? Can we have
agreed upon design limits? The IEC guide is a baseline guide and is not mandatory and IEEE should consider to have
something similar
There was discussion on the subject from manufacturers and users: Main issue is the interpretation of the calculated results (Sanjay Patel) IEEE should not tell manufacturers how to design transformers for SC (Waldimar Ziomek) CSA has agreed to follow the IEC Annex A as a guideline (Waldimar Ziomek) KEMA short circuit testing for the last 15 years shows that 1 in 4 fail and that the failure is not
always in the windings (Shankar Subramany) The manufacturing is very important with regards to short circuit (Joe Foldi) Each company has its own design calculations that are validated by testing (Vinay Mehrota) Should we adopt the highest or lowest criteria? This will be difficult to get consensus on
(Krzysztof Kulasek) We should do our own guide based on IEC and keep in contact with IEC to harmonize as much as
possible (Jason Varnell)
Annex J
Page 28 of 28
Users are happy with any option as long as they follow some criteria Some users have criteria already in their specs
A motion “for IEEE to go in the direction of producing an IEEE guide that uses input from the IEC
guide” was initiated by Bill Boettger and seconded by Joe Foldi. This motion passed by 15 to 1 votes.
The meeting was adjourned at 6.00 pm (motion initiated by Markus Schiessl and seconded by Bill
Boettger)
Annex K
Page 1 of 15
Annex K Power Transformers Subcommittee
March 23, 2016 Atlanta, GA USA Meeting Time: 1:30 p.m.
Chair: Joe Watson Vice Chair: Bill Griesacker Secretary: Kipp Yule
K.1 Meeting Attendance
The Power Transformer s Subcommittee met on Wednesday, March 23, 2016, at 1:30 PM. A call of members indicated that 93 of 112 members were in attendance, achieving a quorum at the meeting. Overall, there were 210 attendees with 93 members and 117 guests. (There were 16 new SC members who requested membership after the meeting, so SC membership is currently 128).
K.2 Approval of previous meeting minutes, and meeting agenda
The Chair presented the Agenda, Attachment K.2, and it was approved.
The Chair requested a motion to approve the Fall 2015 Memphis meeting minutes. The motion was made by Dan Sauer and seconded by Wally Bender, and the minutes were subsequently approved by unanimous vote.
K.3 Chair’s Remarks It was reinforced at the Administration SC that record the name and affiliation of all people attending each WG, TF or SC meetings. While this can be done by entering the full list of attendees in the meeting minutes, the Administrative SC has agreed that this can best be accomplished by recording the attendance of each meeting in the AM system. All working groups are required to enter the individual’s attendance in the AM system. Also, there will be Poster Session at IEEE T&D show this year for anyone that wants to explain and showcase the WG activities.
K.4 Working group reports
K.4.1 Revision of C57.12.10 IEEE Standard Requirements for Liquid-Immersed Power Transformers – Gary Hoffman See details of meeting minutes in Attachment K.4.1. A quorum was achieved. Comprehensive discussion on Clause 4, Clause 5, and Clause 6 are well detailed in the WG minutes. The WG passed a motion to circulate a straw ballot. There was a discussion of the topic of metrification with varying views with regard to a global market, and utility customer expectations, with no conclusion due to time limitation of meeting.
Annex K
Page 2 of 15
K.4.2 Revision of C57.93 IEEE Guide for Installation and Maintenance of Liquid-Immersed Power Transformers – Mike Lau See details of meeting minutes in Attachment K.4.2. The PAR expires in 2016. A PAR extension was submitted and is on the NesCom agenda for approval.
The working group officers reviewed draft 1.2 comments and proposed resolutions. Draft 1.3 with the officer recommendations was posted for working group review.
Several issues were identified which require input form the working group to resolve. A comment resolution group is reviewing the draft 1.2 comments, and the officer recommendations, with final comment resolutions to be submitted.
A discussion on the frequency of fan exercising was held, but conclusions were not reached.
A discussion on test voltages applied under vacuum was held. A task force will investigate this issue and make a recommendation to the working group.
The Piper chart in the guide is out of date and will be revised.
K.4.3 Revision of C57.125 Guide for Failure Investigation, Documentation, Analysis and Reporting for Power Transformers and Shunt Reactors – W. Binder No meeting was held. Revisions to the guide were approved and the document published in December 2015.
K.4.4 TF to Compare C57.131-2012 Standard for Load Tap Changers and IEC 60214-1 ED 2.0 for consideration of recommending adoption of IEC standard (Also WG 60214-2 Tap-Changer Application Guide) - Craig Colopy See details of meeting minutes in Attachments K.4.3.1. and K.4.3.2. 2. TF Chairman provided the SC a background relating to the work being done to adopt the IEC standard 60214-1 as a dual logo document preserving main technical differences between C57.131 and 60214-1 in an Annex. General opinion from TF is prospects are very good to bring these two standards together as one significant standard covering all industry available tap-changers. This dual logo document establishes a base for a future joint revision by IEEE and IEC members when the stability of IEC 60214-1 has expired. It was published in 2014 with a preliminary stability date of 2019. Annex E of C57.131 is included within the new joint revision of 60214-2, Tap Changer Application Guide. The recommendation to Power Transformer Subcommittee is creation of a WG for the purpose of creating a replacement of C57.131-2012 by adoption of IEC 60214-1 with an Annex to include significant technical differences between C57.131 and 60214-1 A motion was made to form the Working Group by Craig Colopy and seconded by Dan Sauer. SC Chair asked for discussion, there was none. The SC Chair asked if there were any objections, being there were none the motion passed. WG Chair Part 2 explained a recap the seventh work session in Venice were presented by Axel Kramer. A presentation on “DRM Diagnostic Test Technique for OLTCs” was made by Raka Levi and Marcos Ferreira. (See new business regarding tutorial recommendation). WG Chair advised opportunities for future working sessions:
Nashville, Tennessee, June 6 – 7 2016, Dresden, Germany September 5 – 6 2016 Vancouver, BC Canada, Oct. 27 – 28 2016
Annex K
Page 3 of 15
K.4.5 C57.140 Guide for the Evaluation and Reconditioning of Liquid-Immersed Power Transformers – Paul Bowman See details of meeting minutes in Attachment K.4.4. Based on the work completed and the WG having vote with 2/3 majority, the WG Chair made a motion to SC to Go To Ballot with PC57.140, Dan Sauer seconded the motion. The SC Chair asked for discussion, and with no discussion offered, then asked if there were any objections. There were no objections by the SC members and hence the motion to Go To Ballot passed. It was noted that the WG Secretary had resigned and at the present time a replacement will not be pursued.
K.4.6 Revision of C57.148 Guide for Control Cabinets for Power Transformers The TF to study the need for revising C57.148, the Standard for Control Cabinets for Power Transformers met for the first time at 11:00 AM on Monday. March 21st, 2016, with 39 attendees, 23 of whom volunteered for membership in the group. The Task Force recommended moving forward as a WG and this was later approved by the Subcommittee. Joe Watson will serve as Chair of the WG, Weijun Li will serve as Vice-Chair and Jean-Francois Collin will serve as Secretary. 13 members of the TF volunteered to review the entire existing document to determine which sections should be revised and to report their findings at the WG meeting in Vancouver. A request for a PAR has been submitted for this revision to the Standard and is expected to be approved before the next meeting in Vancouver. The group will meet again at the Vancouver meeting as a WG if the PAR is approved, or as a TF if the PAR approval is still pending. A motion was made by Dan Sauer with Second by Robert Thompson, the SC Chair asked if there any objections, being there were no objections, the motion the from a Working Group passed.
K.4.7 Revision of C57.150 Guide for the Transportation of Transformers and Reactors Rated 10,000 kVA or Larger Will start up working group at next meeting for revision of the Guide. A motion by Craig Swinderman was made to from a Task Force, the Motion passed without any objections.
K.4.8 Development of PC 57.153 Guide for Paralleling Transformers - Tom Jauch No meeting was held. Nothing reported.
K.4.9 Development of PC57.156 Guide for Transformer Tank Rupture Mitigation of Liquid-Immersed Power Transformers and Reactors - Peter Zhao Working group did not meet. Robert Thompson reported that a 3rd circulation has been completed, there was one comment that has been resolved. Following a fourth circulation the Guide will then will be sent RevCom. A PAR extension was submitted and approved.
K.4.10 Development of PC57.157 Guide for Conducting Functional Life Tests for De-Energized Tap Changer Contacts - Phil Hopkinson There was no meeting. The guide was approved and was published. The working group will not meet at the next Transformers Committee meeting.
Annex K
Page 4 of 15
K.4.11 Development of Standard Requirements for Phase Shifting Transformers - IEEE/IEC 60076-57-12 - Raj Ahuja The document has completed balloting process. Steve Antosz provided the summary report. Work is complete, and has been balloted in both IEC & IEEE.
K.5 Old Business None.
K.6 New Business Marcos Ferreira – Requests the PTSC to sponsor a tutorial on LTC testing. Chair suggests that several companies and users would be invited. Plan would be at future meeting. Motion made by Richard Amos with second by Diana Woods. Discussion by Axle Kramer should include several methods for field testing of LTCs. There was no opposed to future tutorial, the motion passed. The topic of forming a Task Force on Field Testing of LTCs was discussed. After discussion regarding field testing covered by C57.152, and baseline testing performed in factory. Chair asked for a motion, however, there was no interest and topic was closed. Chair will raise subject in the Standards SC. There was a request for Volts per Hertz over time from the relay committee, Russ Patterson as to what is the appropriate curve. The Chair suggested this be addressed by an Amendment to C57.116 – (Directly Connected to Generator) where over excitation is covered. There is a Figure 2-15 in the EPRI Power Plant Electrical Reference Series book that shows one manufactures estimate of overexcitation as located by Kipp Yule. Typically, such curves are requested by the buyer to support relay protection setting on new projects; however, the relay committee is trying to determine how to apply to existing installations. Don Anderson pointed out the Volts per Hertz capability curve is very dependent on the transformer design. The chair indicated there could possibly be a method to convert excitation current to Volts per Hertz and it may be applicable to more than just generator connected units. The Chairs asked for a motion if a Task Force should be formed to investigate if a section on Volts per Hertz should be added to C57.116 as an Amendment. Gary Hoffman suggested rather than a Task Force that a Par Study group be considered; however, no change to motion was made and the vote to form the Task Force was passed with no objections. Chair asked if there was any new business for C57.17 Arc Furnace Transformers – none was reported. Phil Hopkinson provided a view point on regarding if the switching surge test actually is representative of the switching events in the real world. There is Task Force that will meet next meeting and those interested are encouraged to attend.
K.7 Adjournment The meeting adjourned as scheduled.
K.8 Attachments –Working Group Meeting Minutes and Agenda Attachment K.2 – S16 PTSC Agenda Attachment K.4.1 – PC57.12.10 Standard Requirements Attachment K.4.2 – PC57.93 Installation Guide Attachment K.4.3.1 – TF IEC 60214-1 / IEEE C57.131 Tap Changer harmonization
Annex K
Page 5 of 15
Attachment K.4.3.2 – WG 60214-2 IEC Tap Changer Part 2 Application Guide Attachment K.4.4 – PC57.140 Evaluation and Reconditioning Guide
Annex K
Page 6 of 15
Attachment K.2
AGENDA IEEE Transformers Committee / Power Transformers Subcommittee
Wednesday, March 23, 2016, 1:30-2:45 PM Sheraton Atlanta Hotel, Capital Ballroom, Atlanta GA, USA
Joe Watson – Chair, Bill Griesacker – Vice Chair, Kipp Yule - Secretary 1. Call to order 2. Introduction and distribution of attendance sheets 3. Determination of a quorum 4. Approval/correction of the spring 2015 minutes 5. Report from the Administrative Subcommittee meeting 6. New Business 7. Working Group and Task Force reports
Project Title Chair IEEE/IEC 60076-57-1202
Development of Standard Requirements for Phase Shifting Transformers (PAR to 12/31/2016) *
Raj Ahuja
C57.12.10
Revision of IEEE Standard Requirements for Liquid-Immersed Power Transformers (Next revision due 9/30/2020, PAR to 12/31/2019)
Gary Hoffman
C57.17 Revision of Requirements for Arc Furnace Transformers (Published in 2012, next revision due in 2022) *
Robert Ganser
C57.93 Revision of IEEE Guide for Installation and Maintenance of Liquid-Immersed Power Transformers (Published in 2007, next rev. due in 2018, PAR to 12/31/2016)
Mike Lau
PC57.116 Revision of Guide for Transformers Directly Connected to Generators (Published in 2014, next revision due in 2024) *
Gary Hoffman
PC57.125 Revision of Guide for Failure Investigation, Documentation, Analysis and Reporting for Power Transformers and Shunt Reactors (Published in 2015, next revision due in 2025) *
Wallace Binder
C57.131 IEC 60214-1 IEC 60214-2
IEEE Standard Requirements for Load Tap Changers – Joint IEEE/IEC revision Craig Colopy
C57.135 IEEE Guide for the Application, Specification and Testing of Phase-Shifting Transformers (Published in 2011, next revision due in 2021) *
Jin Sim
PC57.140 Revision of Guide for Evaluation and Reconditioning of Liquid-Immersed Power Transformers (Published in 2006, next revision due in 2018) (PAR to 12/31/2017)
Paul Boman
C57.143 Guide for Application for Monitoring Equipment to Liquid-Immersed Transformers and Equipment (Published in 2012, next revision due in 2023) *
Donad Chu
C57.148 Standard for Control Cabinets for Power Transformers (Published in 2011, next revision due in 2021)
Joe Watson
C57.150 Guide for the Transportation of Large Power Transformers and Reactors (Published in 2012, next revision due in 2022) *
Greg Anderson
PC57.153 Development of Guide for Paralleling Transformers (Published in 2015, next revision due in 2025) *
Tom Jauch
PC57.156 Development of Guide for Transformer Tank Rupture Mitigation of Liquid-Immersed Power Transformers and Reactors (PAR extended to 12/17) *
Peter Zhao
Annex K
Page 7 of 15
PC57.157 Development of Guide for Conducting Functional Life Tests for De-Energized Tap Changer Contacts (Published in 2015, next revision due in 2025) *
Phil Hopkinson
IEEE 638 Revision of IEEE Standard for Qualification of Class 1E Transformers for Nuclear power Generating Stations (Published in 2013, next revision due in 2023) *
Craig Swinderman
* No meetings were scheduled during this time for these documents 8. Old Business 9. Collection of Attendance Sheets 10. Adjournment
Annex K
Page 8 of 15
Attachment K.4.1 Meeting Minutes Posted on PTSC Webpage Revision of C57.12.10, 230kV and Below Safety Requirement Use the following link:
http://www.transformerscommittee.org/subcommittees/power/C57.12.10/S16-WGPC.57.12.10-Minutes.pdf
Annex K
Page 9 of 15
Attachment K.4.2 WG Revisions to Installation of Power Transformers C57.93
Monday, May 21, 2016 1:45 MM – 3:00 PM Atlanta, GA
Minutes of the Working Group Meeting Chair Mike Lau called the WG meeting to order at 1:45 PM on May 21, 2016. 16 of 24 members were present, so a quorum was achieved. 91 guests also attended, for a total attendance of 107. Attendance will be recorded in AMS. Twenty (20) guests requested membership. A motion to approve the agenda was made by Wally Binder and seconded by Kipp Yule. The motion passed unanimously. A motion to approve the fall 2015 minutes was made by Joe Watson and seconded by Wally Binder. This motion also passed unanimously. Mike Lau reminded the working group that the PAR expires in 2016. A PAR extension was submitted and is on the NesCom agenda for approval. The working group officers reviewed draft 1.2 comments and proposed resolutions. Draft 1.3 with the officer recommendations was posted for working group review. Several issues were identified which require input form the working group to resolve. A comment resolution group was formed last fall, comprised of Wally Binder, Patrick Rock, Ken Sullivan, Alwyn VanderWalt, Scott Reed, Stephanie Denzer, Alan Peterson, Rick Simonelli, and the working group officers. Ismar Guner, Don Platts, and Eduardo Wild were added this meeting. This group is tasked with reviewing the draft 1.2 comments and the officer recommendations, then submit final comment resolutions to the working group for acceptance. A discussion on the frequency of fan exercising was held, but conclusions were reached. A discussion on test voltages applied under vacuum was held. A task force comprising Joe Watson, Ismail Gunar, Larry Kirchner, Mike Miller, and Chuck Sweetser will investigate this issue and make a recommendation to the working group. The Piper chart in the guide is out of date and will be revised. The next working group meeting will be in Vancouver, British Columbia Canada in October this year. A motion to adjourn was made by Tom Melle, and seconded by Wally Binder. The working group meeting adjourned at 3:00 PM. Respectfully submitted
Mike Lau Open Jim Graham WG Chair Vice Chair Secretary
March 21, 2016
Page 10 of 15
Attachment K4.3.1 Power Transformer Subcommittee
Working Group Report Document #: TF Comparison of IEC 60214-1 and IEEE C57.131
Document Title: Tap-Changers
Chair: Craig A. Colopy Vice-Chair Axel Kraemer
Secretary
Current Draft Being Worked On: NA Dated: NA
Meeting Date: 22 March 2015 Time: 13:45 to 15:00
K.9 Attendance: K.10 Members 23
K.11 Guests 52
K.12 Guests Requesting Membership
7
Total 82
Meeting Minutes / Significant Issues / Comments:
1. Meeting was called to order at 1:45 pm, March 22, 2016. 2. Chairman provided the WG a background relating to the work being done to adopt the IEC standard
60214-1 as a dual logo document preserving main technical differences between C57.131 and 60214-1 in an Annex. General opinion from TF is prospects are very good to bring these two standards together as one significant standard covering all industry available tap-changers. This dual logo document establishes a base for a future joint revision by IEEE and IEC members when the stability of IEC 60214-1 has expired. It was published in 2014 with a preliminary stability date of 2019. Annex E of C57.131 is included within the new joint revision of 60214-2, Tap Changer Application Guide.
3. Comparisons and major technical differences were presented for the following clauses: a. Clause 5 - Requirements for on-load tap-changers (Axel Kraemer) b. Clause 7 - Requirements for de-energized tap-changers (Jeremy Sewell)
4. User ID and Password will be provided once more for a link under the Power Transformer SC for
access to clause comparisons, minutes and published tap-changer standards. Published documents of C57.131 -2012 and 60214-1 Ed. 2 are available under an additional secured User ID and Password.
5. Recommendation to be given to Power Transformer Subcommittee for creation of a WG for the purpose of creating a replacement of C57.131-2012 by adoption of IEC 60214-1 with an Annex to include significant technical differences between C57.131 and 60214-1. A PAR will initiated once approval has been established.
Page 11 of 15
6. An initial WG meeting is planned to take place in Vancouver, Spring 2016 7. Meeting closed at 3:00 pm, Mar 22.
Submitted by: Craig A, Colopy Date: 11/03/2015
Page 12 of 15
Attachment K.4.3.2 Power Transformer Subcommittee
Working Group Report
Document #: WG TC Application Guide IEC 60214-2
Document Title: Tap-Changers
Chair: Craig A. Colopy Vice-Chair Axel Kraemer
Secretary
Current Draft Being Worked On: NA Dated: NA
Meeting Date: 22 March 2015 Time: 15:15 to 16:30
K.13 Attendance: K.14 Members 17
K.15 Guests 26
K.16 Guests Requesting Membership
7
Total 50
Meeting Minutes / Significant Issues / Comments:
8. Meeting was called to order at 3:15 pm, March 22, 2016. 9. Chairman provided the WG a background relating to the work being done to adopt the IEC standard
60214-1 as a dual logo document preserving main technical differences between C57.131 and 60214-1 in an Annex. Annex E of C57.131 is included within the latest draft of 60214-2, Tap Changer Application Guide.
10. Minutes from the seventh work session in Venice, February 25th and 26th, along with key changes in latest draft were presented by Axel Kramer.
11. A presentation on “DRM Diagnostic Test Technique for OLTCs” was made by Raka Levi and Marcos Ferreira. It was suggested this presentation be one discussion from a tutorial on OLTC Diagnostic Techniques to be provided by a panel for a future IEEE Transformer Committee meeting group.
12. User ID and Password will be provided once more for a link under the Power Transformer SC for access to drafts, minutes and supporting documentation.
13. Future Work Sessions: a. Nashville, Tennessee, June 6 – 7 2016, Hosted by Dave Geibel, ABB b. Dresden, Germany September 5 – 6 2016 hosted by Axel Kraemer, Reinhausen c. Vancouver, BC Canada, Oct. 27 – 28 2016, IEEE Transformer Committee meeting
14. Meeting closed at 4:30 pm, Mar 22.
Page 13 of 15
Submitted by: Craig A, Colopy Date: 3/22/2016
Page 14 of 15
Attachment K.4.4 Minutes from Guide for the Evaluation and Reconditioning of Liquid Immersed Power Transformers PC57.140 Meeting was held in Atlanta GA, from 3:45-6:00pm March 21st 2016 Chairman: Paul Boman Vice Chairman: Brian Sparling 62 attendees, 26 members were present, we did not achieve a quorum. Motion to accept the agenda as proposed, made by David Sundin, second by Derek Baronowski Minutes from previous meetings were provided to the Working Group in advance but the Minutes were not approved at this time. As this was not an intended to be a full WG meeting, it was to present the status of the proposed document The Chairman provided a summary of the electronic ballot amongst the WG members with approved 43 and disapproved 5 which meets the 2/3’s majority required to move forward to the Subcommittee for a Sponsor Ballot approval. Summary on draft 5 of the Guide: The suggestions made in the previous meeting were incorporated into the latest Working Group Approved draft which included; • Added notes regarding the use of FURAN analysis used in determining the physical sate of the solid insulation. The white paper produced on FURAN’S by a TF chaired by Tom Prevost was added as a reference into Draft 5. • Added notes regarding the use of alternative insulating fluids for retro filling an existing unit, or into a refurbished or rebuilt unit, with respect to its capabilities of the ‘effect of drying’ the solid insulation. Notes were added regarding the owners responsibilities to review on a case by case basis, the potential re-rating of the unit to be retro-filled with a Natural Ester, by the original OEM. The review of some of the figures used in Draft 5, were found to be without suitable references to the original work from which they were included (even though they are copied from the original document) This process is now a necessary step in the final preparation of the document before submission to the SC to seek approval to proceed to a formal ballot. The Working Group was queried on information regarding the Guide figure sources. Gary Hoffman suggested contacting Bill Bartley. Bill Bartley was later contacted confirmed that he drew figures 3 to 6 and Juan Thierry drew figures 7 to 12 with a simple drawing program. This meet the MEC review requirements and develop the Sponsor Ballot Pool. Ballot resolution committee to be made up in preparation for the ballot. Some discussion about Annex A (retro-filling with other fluids), related to potential new fluids under development. Chairman stated that comments can be made during the Sponsor Ballot, but will not be added into the draft already approved by the WG members. A suggestion was made to include the examination of gasket materials to be used or to be determined by the original OEM, if they are suitable for use with alternative insulating fluids. Meeting was adjourn. Respectfully Submitted, Paul Boman, Chairman
Page 15 of 15
Page 1 of 3
Annex L Standards Subcommittee – Unapproved Minutes
March 23, 2016 Atlanta, GA Chair: Jerry Murphy Vice Chair: Kipp Yule Secretary: Daniel Sauer Standards Coordinator: Jim Graham
The Chair, Jerry Murphy opened the meeting calling a show of members to establish quorum which was met.
L.1 Meeting Attendance
The Standards Subcommittee met on Wednesday, March 23, 2016, at 4:32 PM. A show of hands indicated only 17 of 43 members in attendance falling short of quorum at the starting time of the meeting. Quorum was achieved later with arrival of additional members. Overall the attendance roll showed there were 105 attendees, 26 members, 79 guests, including 16 that requested membership upon tabulation of the circulated rosters and will be reviewed for eligibility. Jane Verner moved to approve the fall 2015 minutes with second by Steve Shull; motion was carried with unanimous acclamation approving. Jerry then requested a review of the Agenda; motion was made by Jane Verner and seconded by Steve Shull which was carried unanimously.
L.2 Chair’s Remarks
Jerry stated he was new to this position and hopes to perform adequate to the task that Bill Bartley made look so easy. The next order of business was to move to the Standards Coordinator’s Report – Jim Graham.
L.3 Standards Coordinator’s Report – Jim Graham Jim’s report is on file.
http://www.transformerscommittee.org/meetings/S2015-Atlanta/Minutes/S16-StandardsReport.pdf
L.4 Working group reports
L.4.1 Corrigenda for C57.163 – Jane Verner Jane presented a power point on Power Transformer Capability while under GMD. A Corrigenda was proposed with motion to submit a PAR to develop a corrigenda to C57.163 to clarify the derivation of the tie plate temperatures shown in Figure 13. Moved by: Jane Verner Seconded by: Gary Hoffman Carried: Unanimously.
L.4.2 Continuous Revision of C57.12.00 – Steve Snyder The purpose of this WG is to compile all the work being done in various TF/WG/SC’s for inclusion in the continuous revision of C57.12.00 in a consistent manner. This WG coordinates efforts with the companion Standard C57.12.90 so that they publish together.
Annex L
Page 2 of 3
The first proofs (copyedited and formatted version) of the approved standard C57.12.00-2015 were emailed to Steve on March 16. It is now up to Steve for a critical review before publication to ensure no unintended changes have occurred to the document. This should be completed within the next 2 weeks.
The standard is good for 10 years, but is under continuous revision and will be next balloted when sufficient new material is available.
All the unresolved issues from the ballot have been sent to the various subcommittee chairs so they may take this on as future work in the working groups under their purview.
Respectfully submitted by Steven L. Snyder, WG Chair, on March 23, 2016
L.4.3 Continuous Revision of C57.12.90 – Steve Antosz
The purpose of the WG is to keep track of the work being done in various TF/WG/SC’s for inclusion in the continuous revision of C57.12.90 in a consistent manner. This is a working group by committee. There are no meetings held.
Summary The new Standard C57.12.90-2015 was approved by the Standards Board on December 15, 2015. It was published on March 11, 2016.
Status Since this is a continuous revision document, there continues to be ongoing work in the various Task Forces, and new material has already been submitted for the next revision. Steve plans to immediately take out a new PAR.
Steve requested the three Subcommittee Chairs from Dielectric Test, Performance Characteristics, and Insulation Life to rename their 12.90 continuous revision Working Groups to Task Forces, since calling them a WG is incorrect. A WG needs a PAR and those groups do not have a PAR. The PAR exists (will exist) in the Standards Subcommittee only. Therefore they are really Task Forces.
Respectfully submitted by Stephen Antosz, WG Chair, on March 23, 2015
Motion to proceed with a new PAR for C57.12.90; moved by Steve Antosz, Seconded by Don Platts; carried unanimously.
Motion made by Steve Antosz, “To change the status on the continuous revision PCS & Di-Electric Test groups from WG to TF for C57.12.90 & C57.12.00”; seconded by Don Platts; carried unanimously.
Steve Antosz informed the Standards SC that Steve Antosz and Steve Snyder will present a tutorial at Vancouver on the new C57.12.00 & C57.12.90 documents.
L.4.4 Corrigenda for C57.12.70 – Steve Shull
Steve Shull called the meeting to order and welcomed everyone to the first working group meeting for the Corrigenda of C57.12.70. The purpose of the Corrigenda was to review the complete annex and in particular to correct diagrams with errors. Since this was the first working group meeting, any attendees desiring membership needed to indicate such on the rosters being circulated at today’s meeting.
Steve presented the agenda and the WG approved by unanimous consent.
Annex L
Page 3 of 3
Steve informed the WG that the PAR for Corrigendum 1: Correction of Annex A was approved at the January 26, 2016 NESCOM meeting.
Steve demonstrated how the errors were found and showed the one of the proposed corrections. Paper copies of the preliminarily review document were passed out to all 17 attendees. Lee Matthews made a motion for all members and guests to take the revised Annex A document and review it for correctness before the next meeting. The motion was seconded by Said Hachichi. The WG passed the motion with unanimous consent.
The next WG meeting will be in Vancouver, BC, Canada, in October 23-27.
The meeting was adjourned at 4:10 pm by motion from Charles Sweetser, seconded by Lee Matthews and passed by unanimous proclamation.
Respectfully submitted by Steve Shull, WG Chair, on March 23, 2016.
L.4.5 TASK FORCE for Comparison of IEEE & IEC Standards for Cross Reference
The task for did not meet at this meeting.
Respectfully submitted by Vinay Mehrotra on November 4, 2015
L.5 Old Business
• C57.12.80 will be preparing a PAR for a Corrigendum to look at the definition of a distribution transformer.
• Kipp Yule, chair of a task force to develop a white paper that will capture the practice of WHAT GOES WHERE gave a presentation of approach, and the current version of the WGW Chart of the Organization & Hierarchy of IEEE Transformer Standards and Guides. Kipp asked the member chairs for additional examples to be included in the appendix. Don Platts made a motion to have these documents circulated to the SC chairs and the Standards SC for review and approval to the Standards SC to verify that the work is complete; seconded by: Craig Colopy; carried: unanimously.
• Steve Antosz chair of a task force to document the “unwritten rules” concerning C57.12.00 & 12.90; and how we can improve the process. Steve reported that he is working on changing WG to TF as they apply to this work. This will be reported in the tutorial.
L.6 New Business Joe Watson brings before the Standards SC that the Power Transformer SC will sponsor a tutorial regarding field testing of OLTCs, should this be jointly sponsored by the Standards SC? Should a TF/WG be established to look at generating a field test guide or standard for OLTCs? The Standards SC approves of the Power Transformer SC moving forward with this tutorial and in the future if a TF is needed to look at a field test guide for OLTCs we will work with Jane Verner on the (continuous) revision or amendment of C57.152.
L.7 Adjournment
The meeting and was adjourned by the Chair without objection at 5:46 p.m.
Respectfully submitted by Daniel M Sauer, Standards SC Secretary
Page 1 of 9
Annex M Underground Transformers & Network Protectors Subcommittee
March 23, 201 Atlanta, Georgia
Chair: Dan Mulkey Vice Chair: George Payerle
M.1 Meeting Administration
Introductions – The meeting was called to order at 11:00 AM in the Atlanta 4-5 rooms of the Sheraton Hotel in Atlanta, Georgia. Introductions were made and sign-in sheets were routed.
Quorum – The members were listed on the screen and by a show of hands, it was determined that there was a quorum with 16 of the 18 members in attendance.
Approval of Minutes – The minutes from the Fall 2015 meeting in Memphis, Tennessee were approved with the changes noted in the working group reports below. They were motioned for approval by Said Hachichi and seconded by Bill Wimmer. The subcommittee approved these without opposition.
Members and Guests --There were 16 members and 20 guests in attendance. Their names can be found in the AM system. Six guests requested membership, and post meeting John Crotty, Robert Stinson, Joshua Verdell, Mike Thibault, David Walker, and David Blew were approved as members.
The chairman, Dan Mulkey, mentioned that work is continuing on the RFID meeting check in system. He also said that he had attended all of the working group meetings in the UTNP subcommittee and that all seem to be functioning very well.
M.2 Working Group and Task Force Reports
M.2.1 C57.12.23 Working Group Report – Single-Phase Submersible Transformer
Alan Traut, Chairman, Adam Bromley, vice-chair. Revision due date: 3/19/2019 PAR Approval Date: 8/21/2014 PAR Expiration Date: 12/31/2018
Introductions – The meeting was called to order and everyone was asked to introduce themselves. Rosters were sent around. Quorum – We had 49 attendees, 27 members (out of 32), 22 guests with 8 of those requesting membership (we will check attendance records), which gave us enough members to establish a quorum. Approval of Agenda – Motion: Said Hachichi, Second: Mike Shannon, unanimous Approval of Minutes – Motion: Justin Pezzin, Second: Fred Friend, unanimous Chair Report – Al talked about when the PAR expires and how long we have to complete our work. PAR expires December 31, 2018. 10-year life cycle of the standard is December 31, 2019. Al mentioned that we should be fine to meet that deadline. We would like to send to ballot in the fall meeting of 2017.
Annex M
Page 2 of 9
Old Business Al reviewed the results from the survey regarding the tank dimensions for various kVA sizes. Survey questions and results are as follows: Are these overall diameters appropriate for the manhole sizes in use? What minimum clearance is required to lower a unit through a 36" manhole? Are there differences if a unit is loop feed vs. radial feed? Should the dimensions be based on kVA and/or voltage (BIL)? If so, please provide suggestions. If you have the equivalent requirements in your user specifications, eg, clause, table, drawings, please provide in your response to this survey. 14 responses received with 4 abstaining Manufacturer response that 36” max overall diameter is achievable with 250kVA but height would be 60”. Also suggest a table of max dimensions by kVA Manufacturer response that 39” max overall diameter is achievable. User response that 35” should be limit on 250kVA to fit 36” manhole. Also suggest overall height limit of 66” User response supports 36” max (42” manhole) for 250kVA and 58” height limit. User response by kVA range:
• 25-100kVA, 29” max diameter, 46” max height • 101-167kVA, 31” max diameter, 47” max height • 250kVA, 35” max diameter
User response that there should be one max diameter and height for all units, not by kVA or voltage. User response that 250kVA units are installed in a 48” enclosure and 36” limit is ok. Max dimensions should be based on kVA alone. Tom Holifield brought up the fact that 39” is the maximum number; why would we go less when a lot of utilities have manholes at 39-40”. Giuseppe, Taz, Dan, and Brian all discussed why we would specify 35” vs. 39” for 250 kVA units. Giuseppe Termini made a motion to make the maximum diameter 36”, Alex Macias seconded. 7 approve. 9 opposed. 4 abstentions. Motion fails. Tom Holifield made a motion to change maximum dimensions 36” to 39” for 250 kVA units. Jermaine Clonts seconded. 15 approve. 3 oppose. 4 abstentions. Motion is approved. Giuseppe mentioned utilities’ challenges with existing infrastructure and asked why we have a maximum diameter that is different for 167 kVA and 250 kVA. Dan Mulkey made a motion to add language to first sentence that states 36” max diameter for enclosure opening is only for 167 kVA and below and to add maximum of 42” for 250 kVA. Ron Stahara seconded. 19 approve. 0 opposed. Motion approved. New language from approved motions is as follows: Construction of the units shall be such that they can be lifted and lowered into place in a suitably designed and constructed enclosure having a minimum diameter of 910 mm (36 in) for 167kVA and below, or 1067 mm (42 in) for 250kVA To allow for cabling space and proper air flow for cooling, the transformers covered by this standard shall not have overall diameters in excess of 760 mm (30 in) for sizes 100 kVA and smaller, or overall diameters in excess of 840 mm (33 in) for 167 kVA, or overall diameters in excess of 990 mm (39 in) for 250 kVA. Low Voltage terminals task force (section 7.2.2). Jermaine discussed the recommendations made by the task force including the addition of voltage ratings. We could add a note to the table that tells the user the
Annex M
Page 3 of 9
H spade can be used for any of the kVA sizes, when specified. Al suggested that we put this into the draft so that we can review and vote on it at the next meeting. The table as presented is shown below:
Secondary terminals
Low-Voltage kVA
Ratings
Ratings (V)
2/0 AWG Copper Cable
120/240, 240/120,
240 25 - 37.5
240/480, 480/240,
480 25 - 75
120 -
*The connection between the secondary bushings and the cable shall be fully
insulated and sealed to prevent the entrance of moisture.
277, 347 25 - 50
600 25 - 100
4/0 AWG Copper Cable
120/240, 240/120,
240 50
240/480, 480/240,
480 100
120 25
277 -
347 75
600 -
500 kcmil copper
120/240, 240/120, 240, 277
75-100
240/480, 480/240
,480 167
120 37.5 – 50
240, 277 75-100
347 100
600 167-250
H Spade
120/240, 240/120, 240, 277,
347
167-250
240/480, 480/240,
480 250
120 75-167
600 -
Tank materials – we wanted to look at requirements added to 12.24 and see if we want to include similar language in 12.23. Dan Mulkey suggested that we can’t make a tank with copper bearing steel with
Annex M
Page 4 of 9
sufficient thickness to survive in the submersible environment. Dan made a motion to adopt the three conditions included in 12.24 but that we change copper bearing steel minimum requirement to 409 SS. Second – Alex Macias. Mike Hardin suggested that we add “as a minimum” to the first sentence. Brian asked if that is clear. Discussion led to an amended motion for material requirements: add other steel materials to first sentence and make all vault environments part of the same paragraph. Amendments to the motion and the motion approved unanimously. This motion puts the following language into the draft: Material requirements The transformer tank, including walls, cover, bottom, and auxiliary coolers shall be constructed of 409, 304L or 316L stainless steel. For transformers continuously submerged, it is recommended the user installs cathodic protection or specifies 304L or 316L stainless steel. For transformers subjected to cycling between wet and dry conditions, or subject to highly corrosive mineral content, it is recommended the user installs cathodic protection or specifies 316L stainless steel. The group ran out of time and had to table the remaining agenda items. Adjourned at 10:45 am. We will meet at the Fall 2016 meeting in Vancouver, Canada.
M.2.2 C57.12.24 Working Group Report – Three-Phase Submersible Transformers
Giuseppe Termini, Chairman; George Payerle secretary Revision due date: 6/17/2019 PAR Approval Date: 11/9/2011 PAR Expiration Date: 12/31/2017
The meeting was called to order at 9:30 AM, March 21, 2016 in the Georgia 2,3 Room of the Sheraton Atlanta Hotel in Atlanta, GA. Introductions were made and an agenda was presented. The meeting was attended by 24 members and 41 guests. Membership stands at 25, and with 24 members present, there was a quorum. Six (6) guests requested membership. The Chairman stated that attendance at 3 consecutive meetings was necessary for membership. Any member missing 2 meetings in a row would be dropped unless the Chairman was notified with a valid justification for missing the meetings.
George Payerle acted as recording secretary. Minutes from the previous meeting in Memphis, TN were presented. Al Traut a motion to approve the minutes, Brian Klaponski seconded it, and the motion was approved unanimously.
The Chairman stated that the PAR has been extended to two (2) years and it will expire on December 31, 2017. However, the Chairman would like to complete the standard revision work within one year. The results of the balloting process were discussed. There were 89 interested individuals in the ballot group of which 81 casted a vote; this represents 91% participation. We received 75 affirmative votes, 4 negative votes with comments and 2 abstentions. This represents 94% approval rate. Fifty-two (52) comments received of which 16 must be satisfied. Prior to this meeting, Corey Morgan led the effort to incorporate the comments received from the balloting process into Draft D6.
Matt Ceglia stated that when Draft 6 is submitted for re-circulation, it will not require another Mandatory Editorial Coordination (MEC) review. The editorial changes will be reviewed by the IEEE editorial review board prior to publishing the final approved standard. The rest of the meeting was dedicated in reviewing the comments incorporated in Draft 6 with the following results:
Annex M
Page 5 of 9
• The revision year of the referenced standards will be removed except for C57.12.00 since specific sections of this standard are referenced.
• Section 5.2 - Rick Marek stated that C57.154, in addition to provide the requirements for transformers operating at elevated temperatures, it also provides the insulation classes for distribution transformers and it is the only standard where insulating classes are actually defined. It was agreed to retain the changes in this sections as incorporated.
• Section 6.2 Reference Temperature - Al Traut made a motion to reverse the technical change that had been made and revert back to state that the reference temperature shall be corrected to 85 degrees C. Cory seconded the motion and it was approved unanimously.
• Figures 1 and 2 -- The metric and English symbols are not shown in the header of the table in Figure 2 as shown in Figure 1. Also, there was a discussion on whether the metric values in the header of the table in Figure 1 should be in millimeters instead of meters. Matt Ceglia stated that it was acceptable under the IEEE metrification rules to show these values in meters. It was agreed to retain the values in meters as shown in Figure 1 and add the metric and English values in millimeters and inches respectively, in the header of the table in Figure 2.
• Section 7.5.4 - Mike Thibault made a motion to exclude aluminum material by adding the words: “Aluminum is not acceptable” between the first and second sentences of this section. Dan Mulkey seconded the motion and it was approved unanimously.
• Section 7.1 – Brian Klaponski stated that although the changes from “mineral oil” to “insulating fluids” throughout the document were acceptable, however, the intent of this standard was to use mineral oil as the basis for insulating fluid. The Chairman suggested to add the words ‘Unless otherwise specified, insulated liquid shall be mineral oil” at the end of the first paragraph of Section 7.1 to satisfy Brian’s comment. A motion was made by Dan Mulkey to add the suggested words. Kent Miller seconded the motion and it was approved unanimously.
Said Hachichi made a motion to approve all the changes in Draft 6 as discussed at the meeting, and as modified above. Cory seconded the motion and it was approved unanimously.
The Chairman stated that Draft D6, as modified at this meeting, will be submitted for recirculation and re-balloted.
The meeting was adjourned at 10:45 AM. The next meeting will be on October 2016 in Vancouver, BC, Canada.
M.2.3 C57.12.40 Working Group Report – Secondary Network Transformers
Brian Klaponski, Chairman; Giuseppe Termini, Secretary Revision due date: 12/31/2021 PAR Approval Date: 8/30/2012 PAR Expiration Date: 12/31/2016
The WG met on Tuesday, March 22, 2016 at 11:00 am with 18 members and 28 guests. One (1) guest requested membership.
An agenda was presented and approved; and introductions were made.
Annex M
Page 6 of 9
The minutes of the November 3, 2015, meeting in Memphis, TN were reviewed. George Payerle made a motion to approve the Meeting Minutes. Tas Taousakis seconded the motion and the minutes were approved unanimously.
The Chair briefly summarized the items in the Meeting Minutes from Memphis. Three individuals requested membership at the last meeting but only Will Elliott was added to the membership since he meet the criteria for membership. The Chair stated that because of the addition of: a) Figure 2 and b) the mathematical equation in Annex B, the balloting of the draft was postponed pending the approval of the addition of these two technical items by this WG.
The Chair also stated that because the draft was not submitted for balloting, a request for a PAR extension will be submitted to allow time to ballot the standard and resolve any comments received from the balloting process.
Larry Dix expanded on the derivation of the equation in Annex B. He stated that the equation is informative for the end users, and is an approximation of the melting point of the bus bar. It was suggested to provide the reference/source of the equation in the text of Annex B. Larry stated that he will provide the reference to the Chair. Jeremy Sewell made a motion to approve the addition of the equation in Annex B. Mark Faulkner seconded and the motion was approved unanimously.
The Chair explained the rational for adding Figure 2 to the standard. The Figure adds details on the preferred and alternative location of the primary bushings. Cory Morgan made a motion to approve the addition of Figure 2. Tas Taousakis seconded the motion and was approved unanimously.
Bob Kinner made a presentation on the difference between 304L and 316L stainless steel. The presentation is summarized below:
“The difference between 304L and 316L is 2% of the chromium content is upgraded to molybdenum. Molybdenum is a chromium group metal with lower susceptibility to forming water soluble chlorides. In turn, it has an improved resistance to saltwater. In terms of welding and stress cracks, there is no advantage of one alloy over the other. To protect against welding errors, look at the welding process. Low carbon alloys mitigate carbide precipitation. Carbide precipitation removes chromium from the alloy – chromium is what makes these steels “stainless”. Austenite tends to have a large grain size, which causes a lot of internal stresses along the welds. Annealing is another way reduce internal stresses, which later lead to cracking, but this may be impractical. Welding with a filler metal containing ferrite forming alloying agents can reduce stresses along the weld lines. Ferritic grains fill the gaps between austenitic grains. Stainless 321 contains 0.4% titanium which will help with this. 309Cb contains 0.8% columbium. Please check with weld wire suppliers for material compatibility.”
The meeting was adjourned at 12:10 pm with the next meeting set for Vancouver, Canada in October 2016.
Annex M
Page 7 of 9
M.2.4 C57.12.44 Working Group Report – Secondary Network Protectors
Bill Wimmer, Chairman, Mark Faulkner, Secretary Revision due date: 12/31/2024 PAR Approval Date: 3/26/2015 PAR Expiration Date: 12/31/2019
The meeting was called to order at 1:45 PM, on Monday, March 21, 2016 in the Georgia 2, 3 Room of the Sheraton Hotel. ( * )A total of 20 individuals attended the meeting. Membership stands at 9 members; a quorum was met on people in attendance (numerous late arrivals) Mark Faulkner presented the meeting agenda to the WG for review and acceptance. Ed Bertolini motioned to approve the meeting agenda as presented, Dan Mulkey, seconded the motion, the motion was approved unanimously. New Business Continued review of comments from Lee Welch: Discussion on external sand filled fuses / referred to Table B.4 pictures Discussion held on including external fuses and housing Three member users are currently specifying external fusing
o George Power (Lee Welch) o CenterPoint Energy (Alex Macias) o Eversource (Cory Morgan)
Individual housing vs one housing for all three fuses o Decision to specify individual housings only
Mounting provisions Placement fuses Spades exiting the housing Clearance requirements between for individual housing, external spades, and fuse within the housing
o Mulkey made reference to Table B.3 / clearances shall be reviewed Noted that a number of end users are utilizing external fusing
o Eaton (Mark F) and Richards (Edward B)will get together to find min. dimensional requirements for publishing in the standard
o Also questioned other type of external fusing available o Lead alloy, copper, KPR, Bussman, 5000A, 4000A, etc...
Pressurizing the fuse enclosure was discussed and deemed necessary. o External fusing housing pressurized independent of network or o External fusing housing pressurized thru vent hole
Table 4 AC voltage ratings:
o Why have the 500 rating? o Eaton (Mark F) stated they test all at 600 o Richards to verify what voltage they test o Results will determine the elimination of 250 and 500
Remote Racking
- Lee (GP) indicated that an inspection window or some means be included in the standard o To verify visible break of contacts
Annex M
Page 8 of 9
o Design in place that do not require the door to be open Sections: 10.5.4.6. / 10.5.4.7 / 105.4.8 / 10.5.4.8 / 10.5.4.9
o A discussion was held concerning the door hinges placement o Submersible vs. non submersible o Is the operating handle the determining factor o It was decided to not change any section
10.5.14 Spare auxiliary contacts
o - Request made to define “dry contact” o - include a means to provide contact status o - Include a means to provide SCADA features in relation with remote racking
Note: It was suggested that a new section be created specific to remote racking Under a) Eaton (Mark) to review and the determine the need to remove or keep in standard as part of the high voltage interlock transformer provisions Under b) one contact to be closed, as known as an “a” ( , remove comma) contact when the network protector is open. This is to be an available “dry” contact. Under c) one contact to be closed, as known as an “b” ( , remove comma) contact when the network protector is open. This is to be an available “dry” contact. Next meeting:
• Vancouver, Canada
M.3 Old Business
M.3.1 SC Scope
The subcommittee voted between meetings to change the scope of this group to: Underground Transformers and Secondary Network Equipment Subcommittee (UGTSN) The Underground Transformers and Secondary Network Equipment Subcommittee shall be responsible for the following:
a) Studying and reviewing the engineering aspects of: • Secondary network protectors • Liquid filled and dry-type secondary network transformers including pad-mount distribution
transformers that incorporate or provide for a network protector or a network grounding switch • Underground distribution transformers, except for pad-mount transformers. This includes vault,
submersible, and subway type distribution transformers. b) Developing and maintaining related standards, recommended practices, and guides for such products c) Coordinating with other technical committees, groups, societies, and associations as required
However, the change has not been approved yet. Hopefully it will be by the next meeting.
At the last meeting, Dan stated that we requested the PAR to be extended to 5 years and have heard nothing. The standards board’s last meeting of the year typically has a deadline for submission that occurs before the fall Transformers Committee meeting so we lose a half year automatically. It is a given that every ballot will need a recirculation. Balloting and recirculation takes a year or longer. So you really have 3 years at most, or 6 meetings to get your work done. Currently there are 4 projects that are asking for PAR extensions that would not need them if PARs lasted 5 years.
Annex M
Page 9 of 9
M.4 New Business
M.4.1 none
M.5 Adjournment
The meeting was adjourned at 12:30 PM with the next meeting set for Vancouver, BC, Canada on October 26, 2016.
APPENDIX 1
Meeting Schedule
page 1
INITIAL ISSUE - February 4
IEEE/PES TRANSFORMERS COMMITTEE www.transformerscommittee.org Spring 2016 Meeting; March 20-24
Hosted by Power Partners, Inc.
Sheraton Atlanta Hotel; Atlanta, Georgia USA See Page 5 for a key to abbreviations.
DATE/TIME
ACTIVITY
SUB-
COM
ACTIVITY
CHAIR
ROOM
CAP/ARR/AV
MEETING
ROOM
Friday, March 18
1:00 pm - 5:00 pm > IEC/IEEE HVDC Converter Transformers MT 60076-57-129
HVDC U. Radbrandt 14 US Suite #123 (Level 1)
Saturday, March 19
> 8:00 am - 5:00 pm > IEC/IEEE HVDC Converter Transformers HVDC U. Radbrandt 14 US Suite #123
6:15 pm to 10:30 pm Early Bird Event: "Agatha's, A Taste of Mystery!", interactive dinner theater (www.agathas.com) -- Advance on-line registration necessary. Limited attendance. Will sell-out early! See flyer for details. -- Meet in hotel lobby at 6:15 pm. We will walk together to Agatha's (5-6 minute walk). Return ~10:30 pm.
Sunday, March 20
> 8:00 am - 12:00 pm IEC/IEEE HVDC Converter Transformers HVDC U. Radbrandt 14 US Suite #123
9:00 am - 1:30 pm Technical Tour: Hitachi HVB Circuit Breaker Facility, Suwanee, Georgia Facility. By Invitation Only. -- Bus departs front of hotel at 9:00 am; returns by 1:30 pm. Morning refreshments at factory; lunch after tour. -- Indicate interest to attend tour during on-line meeting registration, or ... contact Ms. Jackie Burtle at<[email protected]> or at +1.770.495.1755 ext 130.
1:00 pm - 5:30 pm Meeting Registration Capital Pre-function (Level 1)
2:00 pm - 5:30 pm Administrative SC -- Closed meeting, by invitation only
Admin. S. Antosz 26 US Atlanta 1,2,3 (Level 1)
2:00 pm - 5:30 pm NEMA Transformers -- Closed meeting, by invitation only
++ J. Caskey 18 US Atlanta 4,5 (Level 1)
6:00 pm - 8:00 pm Welcome Reception 475 Reception Garden Courtyard (Poolside)
Monday, March 21 -- Monday Breaks Sponsored by SPX Transformer Solutions, Inc. ** 7:00 am - 5:00 pm Meeting Registration Capital Pre-function
7:00 am - 7:50 am Newcomers Orientation -- Breakfast Meeting; arrive early! -- Newcomers & Guests are encouraged to attend!
S. McNelly 80 CL S2 (with buffet)
Atlanta 1,2,3 (Level 1)
7:00 am - 7:50 am Distribution SC Leaders Coordination -- Closed breakfast meeting, by invitation only
S. Shull 16 BD Atlanta 5 (Level 1)
7:00 am - 8:00 am Breakfast - Attendees (no spouses/companions please) 272 RT (8/tbl) Grand Ballroom AB (Level 3)
8:00 am - 9:30 am Breakfast - Spouses/Companions (no meeting attendees please) -- Fandangles Restaurant (Level 3)
9:15 am - 4:00 pm Spouses/Companions Tour: "What Dreams Are Made Of"; MLK Memorial, J. Carter Library, etc. With lunch. -- Advance registration required. Limited attendance. See flyer for details. -- Bus departs at front of hotel at 9:15 am, and returns by 4:00 pm.
8:00 am - 9:15 am > Opening Session S. Antosz -- All attendees are encouraged to attend -- See separate document for meeting agenda -- Attendance recorded as eligibility for Committee membership
>550 MX S1
Capital Ballroom (Level 1)
9:15 am - 9:30 am Break (beverages only) Georgia & Capital Pre-function
** Contact Ed Smith ([email protected]) if you are interested in sponsoring a coffee-break at a future meeting.
page 2
DATE/TIME
ACTIVITY
SUB-
COM
ACTIVITY
CHAIR
ROOM
CAP/ARR/AV
MEETING
ROOM
Monday, March 21 (continued)
9:30 am - 10:45 am WG Thermal Evaluation of Insulation Systems, Dry Type C57.12.60
Dry C. Ballard 60 MX Georgia 4,5
9:30 am - 10:45 am WG Submersible Transf. C57.12.24 UTNP G. Termini 80 MX Georgia 2,3
9:30 am - 10:45 am WG External Dielectric Clearances DiTests E. Davis 120 MX S2 Atlanta 1,2,3
9:30 am - 10:45 am WG Tertiary/Stabilizing Windings PC57.158
PCS E. Betancourt 185 MX S3 Capital South
9:30 am - 10:45 am TF Consolidation of Oil Guides IF T. Prevost 185 MX S3 Capital Center
9:30 am - 10:45 am -- 185 MX S3 Capital North
10:45 am - 11:00 am Break (beverages only) Georgia & Capital Pre-function
11:00 am - 12:15 pm WG Ventilated Dry Type C57.12.51 Dry S. Som 60 MX Georgia 4,5
11:00 am - 12:15 pm WG PD Acoustic Detection C57.127 DiTests D. Gross 80 MX Georgia 2,3
11:00 am - 12:15 pm WG Overhead Distr. Transf. C57.12.20 Dist A. Traut 120 MX S2 Atlanta 1,2,3
11:00 am - 12:15 pm WG Control Cabinets C57.148 Power J. Watson 185 MX S3 Capital South
11:00 am - 12:15 pm WG Moisture in Insulation PC57.162 IL T. Prevost 185 MX S3 Capital Center
11:00 am - 12:15 pm WG PCS Rev. to Test Code C57.12.90 PCS M. Perkins 185 MX S3 Capital North
12:15 pm - 1:30 pm Lunch Meeting: Standards Development Review J. Graham 238 RT (7/tbl) Grand Ballroom AB
-- Everyone welcome to attend. All SC/WG/TF leaders are highly encouraged to attend. (Level 3)
-- Doors open ~12:00 pm. Come early, get a good seat, and start eating. -- Advance registration necessary. No paper tickets. Admission verified with namebadge at the door.
1:45 pm - 3:00 pm WG Dry Type Gen. Require. C57.12.01 Dry C. Ballard 60 MX Georgia 4,5
1:45 pm - 3:00 pm WG Sec. Network Protectors C57.12.44 UTNP M. Faulkner 80 MX Georgia 2,3
1:45 pm - 3:00 pm WG 1-ph Padmount Dist Transf. C57.12.38 Dist A. Ghafourian 120 MX S2 Atlanta 1,2,3
1:45 pm - 3:00 pm TF Thru-Fault Current Duration PC57.109 PCS V. Mehrotra 185 MX S3 Capital South
1:45 pm - 3:00 pm WG Installation of Power Transf. C57.93 Power M. Lau 185 MX S3 Capital Center
1:45 pm - 3:00 pm TF Audible Sound Revision to Test Code PCS R. Girgis 185 MX S3 Capital North
3:00 pm - 3:15 pm Break (beverages and treats) Georgia & Capital Pre-function
3:15 pm - 4:30 pm WG Milli-amp Current Transf. C57.13.7 IT H. Alton 60 MX Georgia 4,5
3:15 pm - 4:30 pm SC HVDC Converter Transformers and Smoothing Reactors
HVDC M. Sharp 80 MX Georgia 2,3
3:15 pm - 4:30 pm WG 3-ph Padmount Dist Transf. C57.12.34 Dist R. Stahara 120 MX S2 Atlanta 1,2,3
3:15 pm - 4:30 pm WG Natural Ester-Based Fluids C57.147 IF P. McShane 185 MX S3 Capital South
3:15 pm - 4:30 pm WG Dielectric Freq. Response PC57.161 DiTest A. Naderian 185 MX S3 Capital Center
3:15 pm - 4:30 pm WG Transformer Capability with Non-sinusoidal Loads PC57.110
PCS R. Marek 185 MX S3 Capital North
4:30 pm - 4:45 pm Break (beverages only) Georgia & Capital Pre-function
4:45 pm - 6:00 pm -- 60 MX Georgia 4,5
4:45 pm - 6:00 pm WG PD in Bushings & PT/CTs PC57.160 DiTests T. Hochanh 80 MX Georgia 2,3
4:45 pm - 6:00 pm WG Step-Voltage Regulators C57.15 / 60076-21
Dist C. Colopy 120 MX S2 Atlanta 1,2,3
4:45 pm - 6:00 pm -- 185 MX S3 Capital South
4:45 pm - 6:00 pm WG Life Extension C57.140 Power P. Boman 185 MX S3 Capital Center
4:45 pm - 6:00 pm WG PCS Revisions to C57.12.00 PCS T. Ansari 185 MX S3 Capital North
No Technical Tours or Social Events Planned
page 3
DATE/TIME
ACTIVITY
SUB-
COM
ACTIVITY
CHAIR
ROOM
CAP/ARR/AV
MEETING
ROOM
Tuesday, March 22 -- Tuesday Breaks Sponsored by Delta Star Inc. **
7:00 am - 12:00 pm Meeting Registration Capital Pre-function
7:00 am - 8:00 am Breakfast - Attendees (no spouses/companions please) 272 RT (8/tbl) Grand Ballroom AB
8:00 am - 9:30 am Breakfast - Spouses/Companions (no meeting attendees please) -- Fandangles Rest.
7:00 am - 7:50 am EL&P Delegation (end-users only please) -- Breakfast Meeting; arrive early
J. Murphy 36 CL (with buffet)
Georgia 6 (Level 1)
9:15 am - 4:00 pm Spouses/Companions Tour: "Atlanta's Must See Tour"; World of Coca-Cola, CNN Studio, etc. With lunch. -- Advance registration required. Limited attendance. See flyer for details. -- Bus departs at front of hotel at 9:15 am, and returns by 4:00 pm.
WG Functional Life Tests, De-energized Tap Changers (DETC) PC57.157
Power Work complete. Will not meet.
8:00 am - 9:15 am WG Station Service Voltage Transformers IT D. Wallace 60 MX Georgia 4,5
8:00 am - 9:15 am TF Limits for Winding Insulation PF/Resistance
DiTests S. Tarlapally 80 MX Georgia 2,3
8:00 am - 9:15 am WG Enclosure Integrity C57.12.28, C57.12.29, C57.12.31, C57.12.32
Dist D. Mulkey 120 MX S2 Atlanta 1,2,3
8:00 am - 9:15 am TF Composite Bushings Bush J. Graham 185 MX S3 Capital South
8:00 am - 9:15 am WG PD Detection in Dry Type Transformers C57.124
Dry T. Prevost 185 MX S3 Capital Center
8:00 am - 9:15 am WG Revision to C57.12.10 Power G. Hoffman 185 MX S3 Capital North
9:15 am - 9:30 am Break (beverages only) Georgia & Capital Pre-function
TF Committee History Mtgs Will not meet at this meeting.
9:30 am - 10:45 am WG Tests for Instrument Transf. C57.13.5 IT P. Riffon 60 MX Georgia 4,5
9:30 am - 10:45 am WG 1-Ph Submersible Transf. C57.12.23 UTNP A. Traut 80 MX Georgia 2,3
9:30 am - 10:45 am -- 120 MX S2 Atlanta 1,2,3
9:30 am - 10:45 am WG GSU Bushings PC57.19.04 Bush S. Digby 185 MX S3 Capital South
9:30 am - 10:45 am WG Shunt Reactors C57.21 PCS S. Som 185 MX S3 Capital Center
9:30 am - 10:45 am WG Wind Turbine Transf. P60076-16 PCS D. Buckmaster 185 MX S3 Capital North
10:45 am - 11:00 am Break (beverages only) Georgia & Capital Pre-function
WG Phase Shift Transf. 60076-57-1202 Power Will not meet. Will update status in SC meeting.
11:00 am - 12:15 pm TF PLC Caps & CCVTs (currently C93.1) IT Z. Roman 60 MX Georgia 4,5
11:00 am - 12:15 pm WG Liquid-immersed Secondary Network Transformers C57.12.40
UTNP B. Klaponski 80 MX Georgia 2,3
11:00 am - 12:15 pm WG Semiconductor Power Rectifier Transformers C57.18.10
PCS S. Kennedy 120 MX S2 Atlanta 1,2,3
11:00 am - 12:15 pm WG Distrib. Transf. Bushings PC57.19.02 Bush S. Shull 185 MX S3 Capital South
11:00 am - 12:15 pm -- 185 MX S3 Capital Center
11:00 am - 12:15 pm WG Loss Evaluation Guide C57.120 PCS R. Verdolin 185 MX S3 Capital North
12:15 pm - 1:30 pm Awards Luncheon D. Platts 238 RT (7/tbl) Grand Ballroom AB
-- Doors open ~12:00 pm. Come early, get a good seat, and start eating. (Level 3)
-- Advance registration necessary. No paper tickets. Admission verified with namebadge at the door.
All meeting attendees are encouraged attend. It’s a great way to show your appreciation and help us recognize our accomplishments.
1:45 pm - 3:00 pm WG 3-ph Transf. Connections PC57.105 PCS A. Bromley 60 MX Georgia 4,5
1:45 pm - 3:00 pm TF Tap-Changer C57.131 / 60214-1 Power C. Colopy 80 MX Georgia 2,3
1:45 pm - 3:00 pm WG Distr. Substation Transf. C57.12.36 Dist J. Murphy 120 MX S2 Atlanta 1,2,3
1:45 pm - 3:00 pm -- 185 MX S3 Capital South
1:45 pm - 3:00 pm WG Revision to Low Frequency Tests DiTests B. Poulin 185 MX S3 Capital Center
1:45 pm - 3:00 pm WG DPV Grid Transformers PC57.159 PCS H. Shertukde 185 MX S3 Capital North
3:00 pm - 3:15 pm Break (beverages and Pretzels!) Georgia & Capital Pre-function
** Contact Ed Smith ([email protected]) if you are interested in sponsoring a coffee-break at a future meeting.
page 4
DATE/TIME
ACTIVITY
SUB-
COM
ACTIVITY
CHAIR
ROOM
CAP/ARR/AV
MEETING
ROOM
Tuesday, March 22 (continued)
WG Test Data Reporting C57.12.37 Dist Work complete. Will not meet.
3:15 pm - 4:30 pm -- 60 MX Georgia 4,5
3:15 pm - 4:30 pm WG Tap-Changer Applic. Guide 60214-2 Power C. Colopy 80 MX Georgia 2,3
3:15 pm - 4:30 pm Standard Terminal Markings C57.12.70 Stds S. Shull 120 MX S2 Atlanta 1,2,3
3:15 pm - 4:30 pm WG Std Require for Bushings C57.19.01 Bush S. Zhang 185 MX S3 Capital South
3:15 pm - 4:30 pm WG Application of High-Temp Insulation Materials, IEEE P-1276
IL R. Wicks 185 MX S3 Capital Center
3:15 pm - 4:30 pm TF Switching Transients Induced by Transf/Breaker Interaction PC57.142
PCS J. McBride 185 MX S3 Capital North
4:30 pm - 4:45 pm Break (beverages only) Georgia & Capital Pre-function
TF for Cross Reference of IEEE to IEC Stds Will not meet at this meeting.
4:45 pm - 6:00 pm WG Dry Type Test Code C57.12.91 Dry D. Foster 60 MX Georgia 4,5
4:45 pm - 6:00 pm -- 80 MX Georgia 2,3
4:45 pm - 6:00 pm WG Tank Pressure Coordinat. C57.12.39 Dist C. Gaytan 120 MX S2 Atlanta 1,2,3
4:45 pm - 6:00 pm TF Short Circuit Design Criteria PCS D. Buckmaster 185 MX S3 Capital South
4:45 pm - 6:00 pm WG Revision to Gas Guide C57.104 IF R. Ladroga 185 MX S3 Capital Center
4:45 pm - 6:00 pm WG Revisions to Impulse Test Sections of C57.12.00 and C57.12.90
DiTests P. Riffon 185 MX S3 Capital North
No Technical Tours or Social Events Planned
Wednesday, March 23 -- Wednesday Breaks Sponsored by DuPont **
No Meeting Registration, No Technical Tours, No Spouse/Companion Tours
7:00 am - 8:00 am Breakfast - Attendees (no spouses/companions please) 272 RT (8/tbl) Grand Ballroom AB
8:00 am - 9:30 am Breakfast - Spouses/Companions (no meeting attendees please) -- Fandangles Rest.
7:00 am - 7:50 am SC Meetings Planning Mtgs G. Anderson 24 CL (with buffet)
Georgia 6 (Level 1)
7:00 am - 8:30 am IEC TC-14 Technical Advisory Group ++ -- Breakfast Meeting; arrive early -- All interested individuals welcome
P. Hopkinson 80 CL S2 (with buffet)
Atlanta 1,2,3
8:00 am - 9:15 am SC Instrument Transformers IT R. McTaggart 80 MX S2 Atlanta 4,5
8:00 am - 9:15 am SC Insulation Life IL S. Kennedy 350 MX S3 Capital Ballroom
9:15 am - 9:30 am Break (beverages only) Capital Pre-function
9:30 am - 10:45 am SC Bushings Bush P. Zhao 180 MX S3 Atlanta 1,2,3
9:30 am - 10:45 am SC Distribution Transformers Dist S. Shull 350 MX S3 Capital Ballroom
10:45 am - 11:00 am Break (beverages only) Capital Pre-function
11:00 am - 12:15 pm SC UG Transf. & Network Protectors UTNP D. Mulkey 80 MX S2 Atlanta 4,5
11:00 am - 12:15 pm SC Dielectric Tests DiTests M. Franchek 350 MX S3 Capital Ballroom
12:15 pm - 1:30 pm Lunch (on your own)
1:30 pm - 2:45 pm SC Dry Type Transformers Dry C. Johnson 80 MX S2 Atlanta 4,5
1:30 pm - 2:45 pm SC Power Transformers Power J. Watson 350 MX S3 Capital Ballroom
2:45 pm - 3:00 pm Break (beverages and treats) Capital Pre-function
3:00 pm - 4:15 pm SC Insulating Fluids IF D. Wallach 180 MX S3 Atlanta 1,2,3
3:00 pm - 4:15 pm SC Performance Characteristics PCS E. teNyenhuis 350 MX S3 Capital Ballroom
4:15 pm - 4:30 pm Break (beverages only) Capital Pre-function
4:30 pm - 5:45 pm SC Standards Stds J. Murphy 350 MX S3 Capital Ballroom
6:00 pm - 10:00 pm Dinner Social: Atlanta History Center. Advance registration required. See flyer for more information. -- Doors of museum open at 6:30 pm; with buffet dinner served at 7:30 pm. Cash bar provided. -- Paper tickets will not be provided. Admission verified with namebadges as you enter the museum. -- Buses begin loading at front of the hotel at 6:00 pm, last bus departs at 6:45 pm. -- After the event, buses begin loading at the Center at 9:00 pm, last bus departs at 10:00 pm.
** Contact Ed Smith ([email protected]) if you are interested in sponsoring a coffee-break at a future meeting.
page 5
KEY Note: A PC projector will be furnished in each meeting room. Arrive early to ensure equipment operates/syncs correctly. > -- activity continued into another session / from another session BD = boardroom; US = U-shape ++ -- not a Transformers Committee activity TBD = "To Be Determined" RT = multiple roundtables FC = flip chart; S1 = sound (special set-up) CL = classroom seating (w/head table for 2) S2 = stand mic in front only; S3 = one stand mic in front & stand mic(s) at mid-room TH = theater seating (w/head table for 2) MX = mix classroom & theater (w/head table)
SUBCOMMITTEES
Bush Bushings HVDC HVDC Converter Transformers and Smoothing Reactors
Mtgs Meetings
DiTests Dielectric Tests Power Power Transformers
Dist Distribution Transformers IF Insulation Fluids UTNP Underground Transformers and Network Protectors Dry Dry Type Transformers IL Insulation Life
IT Instrument Transformers Stds Standards
Thursday, March 24
No Meeting Registration, No Spouses/Companions Tours, No EPRI TF Meeting
7:00 am - 9:30 am Breakfast - Attendees & Spouses/Companions Combined Breakfast on Thursday!
300 RT (8/tbl) Garden Courtyard (Poolside)
8:00 am - 9:15 am Technical Presentation #1: "DGA Analysis, New Tools Such As The Duval Pentagon", by M. Duval, et al. See flyer on website
400 MX S1
Capital Ballroom (Level 1)
9:15 am - 9:30 am Break (beverages only) Capital Pre-function
9:30 am - 10:45 am Technical Presentation #2: "Application Guide for DPV Transformers" by C. Gaytan, S. Kennedy, H. Shertukde. See flyer on website.
400 MX S1
Capital Ballroom
10:45 am - 11:00 am Break (beverages only) Capital Pre-function
> 11:00 am - 12:00 pm Closing Session -- All attendees are encouraged to attend -- See separate document for meeting agenda
S. Antosz 400 MX S1
Capital Ballroom
Lunch on your own
12:30 pm - 8:00 pm Technical Tour: Power Partners, Inc. Transformer Factory; Athens, Georgia. By Invitation Only. -- Bus departs front of hotel at 12:30 pm; returns by 8:00 pm. Box lunch on bus; dinner on return to hotel. -- Indicate interest to attend tour during on-line meeting registration, or ... contact Ms. Meghan Monty at <[email protected]> or at +1.706.548.3121 ext 231.
Friday, March 25
No Committee Meetings, No Technical Tours, No EPRI TF Meeting
** Contact Tom Prevost ([email protected]) if you are interested in making a technical presentation at a future meeting.
FUTURE COMMITTEE MEETINGS
Fall 2016 - October 23-27; Vancouver, B.C. Canada
Spring 2017: March 26-30 or April 2-6; Location TBD
Fall 2017: October 15-19 or 22-26; Location TBD
page 6
Sheraton Atlanta Hotel 165 Courtland Street NE; Atlanta, Georgia 30303 USA
(404) 659-6500
Level 3
Grand Ballroom: breakfasts and lunches
Fandangles Restaurant: Spouses/Companions Breakfasts
Level 2
Hotel Lobby
Garden Courtyard, Poolside: Sunday Reception & Friday Breakfast
Level 1
Meeting Registration
Capital Ballroom (North, South & Center)
Atlanta Rooms
Georgia Rooms
Suite #123
APPENDIX 2
Semi-Annual Standards Report
- Page 1 of 23-
IEEE / PES /TRANSFORMERS COMMITTEE
Standards Report
To: Members of Transformers Committee March 1, 2016
From: William H. Bartley, RETIRED Standards Coordinator
and Jim Graham, new Standards Coordinator
Executive Summary This report covers the Transformers Committee Standards activity for the 5 month period from Nov 1,
2015 to March 1, 2016. In the last 5 months, seven Revisions were approved by the Standards Board. In this same period, the Standards Board approved four PAR Extensions, four PAR modifications, one PAR for a new standard, one PAR for a Revision, and one PAR for a Corrigendum.
In this Report: I. Standards approved............................................................ pg 1
II. PA Rs approved.................................................................... pg 1 -2
III. Standards Board 2015 Meeting Schedule ......................... pg 2 -3
IV. T ransformer Committee Ballot Status .............................. pg 4
V. T ransformers Committee PA R Status ............................... pg 4 -6
VI. T ransformer Stds Status database .................................... pg 7 - 21
VII. T ransformer Stds Org Chart ................................................... pg 22-23
I. Standards approved since Nov 1, 2015
REVISIONS to Transformer Standards approved (All expire 31 Dec 2025, except for C57.13)
C57.12.00 Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating
Transformers
C57.12.90 Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers
C57.13 IEEE Standard Requirements for Instrument Transformers (expires 31–Dec– 2026)
C57.32 Standard Requirements, Terminology, and Test Procedures for Neutral Grounding Devices
C57.94 Recommended Practice for Installation, Application, Operation, and Maintenance of Dry-Type
Distribution and Power Transformers
C57.106 Guide for Acceptance and Maintenance of Insulating Mineral Oil in Electrical Equipment
C57.139 Guide for Dissolved Gas Analysis in Transformer Load Tap Changers
II. PARs approved since Nov 1, 2015
PAR Extensions approved (All extended until December 2017)
PC57.12.24 Standard for Submersible, Three-Phase Transformers, 3750 kVA and Smaller: High Voltage, 34
500 GrdY/19 920 Volts and Below; Low Voltage, 600 Volts and Below
PC57.12.36 Standard Requirements for Liquid-Immersed Distribution Substation Transformers
PC57.19.04 Standard Performance Characteristics and Dimensions for High Current Power Transformer
Bushings with Rated Continuous Current in Excess of 5000 A in Bus Enclosures
Spring 2016 Standards Report Page 2 of 23
PC57.156 Guide for Tank Rupture Mitigation of Liquid-Immersed Power Transformers and Reactors
PAR Modifcations approved:
PC57.12.39 Standard Requirements for Distribution Transformer Tank Pressure Coordination
PC57.12.70-2011 /Cor 1 Standard Terminal Markings and Connections for Distribution and Power Transformers
- Corrigendum 1: Correction of Annex A
PC57.15 Standard Requirements, Terminology, and Test Code for Step-Voltage Regulators
PC57.147 Guide for Acceptance and Maintenance of Natural Ester Insulating Liquid in Transformers
(PAR Modifications do not change the Expiration Date)
New Projects approved: (Approved until December 2020)
PC57.19.02 Standard for the Design and Performance Requirements of Bushings Applied to Liquid Immersed
Distribution Transformers
PARs for Corrigenda approved: (Approved until December 2020)
PC57.12.38-2014/Cor 1 Standard for Pad-Mounted-Type, Self-Cooled, Single-Phase Distribution Transformers
250 kVA and Smaller: High Voltage, 34 500 GrdY/19 920 V and Below; Low Voltage, 480/240 V and
Below - Corrigendum 1: Correct an omission in the label of Figure 1.
PAR Requests for REVISION of Standards (Approved until December 2020)
PC57.16 Std for Requirements, Terminology, and Test Code for Dry-Type Air-Core Series-Connected
Reactors
III. 2016 IEEE Standards Board Meeting Schedule
Starting in 2015, the Standards Board has only three physical board meetings per year. But they
supplement this with three (3) teleconference meetings. The full list of 2016 meetings is shown in
the calendar on the next page.
Deadlines for 2016 Standards Board Submissions:
Please Note: Anything that expires at the end of 2016 must be submitted to Standards
Board (either NESCOM or REVCOM) by October 17th
Standards Board Meeting Submission Deadline
March 2016 January 22, 2016
May 2016 teleconference March 22, 2016
June 2016 May 20, 2016
Sept 2016 teleconference August 5, 2016
December 2016 October 17, 2016
Spring 2016 Standards Report Page 3 of 23
IV. Transformers Committee Ballot Status (as of Mar 1, 2016)
Sub
comm
PAR or
Standard # Title Stage
# of
Balloters
Ballot
Close
Date
Die
lect
ric
PC57.138
Recommended Practice for Routine Impulse Test for
Distribution Transformers Ballot 95 3/11/2016
Dis
t
PC57.12.20
Standard for Overhead-Type Distribution Transformers 500
kVA and Smaller: High Voltage, 34 500 V and Below; Low
Voltage, 7970/13 800Y V and Below PreBallot 101
PC57.12.31-
2010-Cor_1
Standard for Pad-Mounted-Type, Self-Cooled, 1-Ph
Distribution Transformers <250 kVA - Corrigendum 1: Correct
an omission in the label of Figure 1.
Comment
Resolution 76 2/7/2014
PC57.12.34
Standard for Requirements for Pad-Mounted,Compartmental
Type, Self-Cooled, Three Phase Distribution Transformers,
10 MVA and Smaller
Comment
Resolution 1 106 6/7/2015
PC57.12.36
Standard Requirements for Liquid-Immersed Distribution
Substation Transformers
Comment
Resolution 142 11/5/2014
Dry
Typ
e
PC57.12.59
Guide for Dry-Type Transformer Through-Fault Current
Duration
Comment Resolution 1 89 7/16/2015
InsL
ife
PC57.119
Recommended Practice for Performing Temperature Rise
Tests on Oil-Immersed Power Transformers at Loads
Beyond Nameplate Ratings
Comment
Resolution 112 3/18/2015
Per
f
Cha
rac
PC57.159
Guide on Transformers for Application in Distributed
Photovoltaic (DPV) Power Generation Systems
Comment Resolution 1 129 1/25/2016
Pow
er
Tra
nsfo
rmer
s
PC57.156
Guide for Tank Rupture Mitigation of Liquid-Immersed Power
Transformers and Reactors
Comment Resolution 2 118 1/14/2016
P60076-16 Power Transformers - Part 16: Transformers for Wind
Turbine Application
Comment Resolution 151 2/27/2015
UG
PC57.12.24
Standard for Submersible, 3-Phase Transformers, <3750
kVA: High Voltage, 34 500 GrdY/19 920 Volts and Below;
Low Voltage, 600 Volts and Below
Comment Resolution 89 11/21/2015
Spring 2016 Standards Report Page 4 of 23
V. Transformer Committee PAR Status (as of Mar 1, 2016) S
ub-
Com
m
PAR Number Title
Project
Type Approval Date
PAR
Expiration
Bus
hing
PC57.19.01
Standard Performance Characteristics and Dimensions for
Outdoor Apparatus Bushings Revision 12/8/10 12/31/2017
PC57.19.02
Standard for the Design and Performance Requirements of
Bushings Applied to Liquid Immersed Distribution Transformers
New 2/5/16 12/31/2020
PC57.19.04
Standard Performance Characteristics and Dimensions for
High Current Power Transformer Bushings with Current in
Excess of 5000 A in Bus Enclosures New 6/16/11 12/31/2017
Sub
Com
m
PAR Number Title Project Type Approval Date
PAR Expiration
Die
lect
ric
PC57.127
Guide for the Detection, Location and Interpretation of
Sources of Acoustic Emissions in Power Transformers and
Power Reactors Revision 2/16/15 12/31/2019
PC57.138
Recommended Practice for Routine Impulse Test for
Distribution Transformers Revision 2/5/11 12/31/2016
PC57.160 Guide for the Electrical Measurement of Partial Discharges in HV Bushings & Instrument Transformers New 3/6/13 12/31/2017
PC57.161 Guide for Dielectric Frequency Response Test New 8/23/13 12/31/2017
Dis
trib
utio
n
PC57.12.20
Standard for Overhead-Type Distribution Transformers 500
kVA and Smaller: High Voltage, 34 500 V and Below; Low Voltage, 7970/13 800Y V and Below
Revision 6/82012 12/31/2016
PC57.12.32 Standard for Submersible Equipment - Enclosure Integrity Revision 6/11/15 12/31/2019
PC57.12.36 Standard Requirements for Liquid-Immersed Distribution Substation Transformers
Revision 12/7/11 12/31/2017
PC57.12.38 /Cor 1
Standard for Pad-Mounted-Type, Self-Cooled, 1-Ph
Distribution Transformers <250 kVA - Corrigendum 1:
Correct an omission in the label of Figure 1.
Corrigendu
m 2/5/16 12/31/2020
PC57.15 Standard Requirements, Terminology, and Test Code for
Step-Voltage Regulators Revision 2/5/16 12/31/2018
PC57.12.39 Standard Requirements for Distribution Transformer Tank Pressure Coordination
New 2/6/16 12/31/2016
Dry
Typ
e
PC57.12.51 Standard for Ventilated Dry-Type Power Transformers,
>501 kVA - General Requirements Revision 8/21/14 12/31/2018
PC57.12.58 Guide for Conducting a Transient Voltage Analysis of a Dry-
Type Transformer Coil Revision 9/3/15 12/31/2019
PC57.12.60 Std Test Procedure for Thermal Eval of Insulation Systems for Dry-Type Pwr & Distribution Transformers
Revision 6/11/15 12/31/2019
PC57.16 Std for Requirements, Terminology, and Test Code for Dry-
Type Air-Core Series-Connected Reactors Revision 2/5/16 12/31/2020
Spring 2016 Standards Report Page 5 of 23
Inst
rum
ent
PC57.13.7 Standard for Current Transformers with a Maximum mA
Secondary Current of 250 mA New 9/30/10 12/31/2016
PC57.13.8 Standard Requirements for Station Service Voltage
Transformers New 12/11/13 12/31/2017
Per
form
ance
Cha
ract
eris
tics
PC57.21 Standard Requirements, Terminology, and Test Code for Shunt Reactors Rated Over 500 kVA
Revision 8/21/14 12/31/2018
PC57.105 Guide for Application of Transformer Connections in Three-Phase Electrical Systems
Revision 3/26/15 12/31/2019
PC57.109 Guide for Liquid-Immersed Transformers Through-Fault-
Current Duration Revision 3/26/15 12/31/2019
PC57.110
Rec Practice for Establishing Liquid-Immersed and Dry-
Type Pwr and Distribution Transformer Capability When
Supplying Nonsinusoidal Load Currents Revision 6/12/14 12/31/2018
PC57.120 Guide for Loss Evaluation of Distribution and Power
Transformers and Reactors Revision 3/25/10 12/31/2016
PC57.158 Guide for the Application of Tertiary and Stabilizing Windings in Power Transformers
New 5/15/12 12/31/2016
PC57.159 Guide on Transformers for Application in Distributed Photovoltaic (DPV) Power Generation Systems
New 6/8/12 12/31/2016
Sub
-
Com
m
PAR Number Title Project Type Approval Date
PAR Expiration
HV
Con
v
P60076-57-129 Converter Transformers for HVDC Applications Revision 12/10/14 12/31/2018
Insu
latin
g
Flu
id
PC57.104 Guide for the Interpretation of Gases Generated in Oil-
Immersed Transformers Revision 2/5/10 12/31/2017
PC57.147 Guide for Acceptance and Maintenance of Natural Ester
Insulating Liquid in Transformers Revision 2/5/16 12/31/2016
Insu
latio
n Li
fe
P1276
Guide for the Application of High-Temperature Insulation
Materials in Liquid-Immersed Distribution, Power and
Regulating Transformers Revision 3/27/14 12/31/2016
PC57.119
Recommended Practice for Performing Temperature Rise
Tests on Oil-Immersed Power Transformers at Loads Beyond Nameplate Ratings
Revision 10/27/14 12/31/2018
PC57.162
Guide for the Interpretation of Moisture Related Parameters
in Dry, Gas Insulated and Liquid Immersed Transformers
and Reactors New 8/23/13 12/31/2017
Spring 2016 Standards Report Page 6 of 23
Pow
er T
rans
form
ers
P60076-16 Power Transformers - Part 16: Transformers for Wind
Turbine Application New 12/10/14 12/31/2016
P60076-57-1202 Standard Requirements for Liquid Immersed Phase-Shifting
Transformers New 6/82012 12/31/2016
P60214-2 Tap-Changers - Part 2: Application Guide New 6/12/14 12/31/2018
PC57.12.10 Standard Requirements for Liquid-Immersed Power Transformers
Revision 3/26/15 12/31/2019
PC57.93 Guide for Installation and Maintenance of Liquid-Immersed
Power Transformers Revision 3/29/12 12/31/2016
PC57.140 Guide for Evaluation and Reconditioning of Liquid
Immersed Power Transformers Revision 3/31/11 12/31/2017
PC57.156 Guide for Tank Rupture Mitigation of Liquid-Immersed Power Transformers and Reactors
New 6/16/11 12/31/2017
Sta
ndar
ds
PC57.12.70 /Cor 1
Standard Terminal Markings and Connections for
Distribution and Power Transformers - Corrigendum 1:
Correction of Annex A
Corrigendu
m 2/5/16 12/31/2019
UG
Tra
nsfo
rmer
s
PC57.12.23
Standard for Submersible Single-Phase Transformers: 250
kVA and Smaller; High Voltage 34 500GrdY/19 920V and
Below; Low Voltage 600 V and Below Revision 8/21/14 12/31/2018
PC57.12.24
Standard for Submersible, 3-Phase Transformers, <3750
kVA: High Voltage, 34 500 GrdY/19 920 Volts and Below; Low Voltage, 600 Volts and Below Revision 11/9/11 12/31/2017
PC57.12.40 Standard for Network, 3-Phase Transformers, <2500 kVA; Subway and Vault Types (Liquid Immersed) Revision 8/30/12 12/31/2016
PC57.12.44 Standard Requirements for Secondary Network Protectors Revision 3/26/15 12/31/2019
IEEE/PES TRANSFORMERS COMMITTEEStatus Report of Transformers Standards
STANDARDPROJECT
TITLEPub YearRev Due Dat
PAR Issue DatPAR Expiration
Standard StatusRemark
Working Group Chair
EmailPhone
SubCommittee BUSHINGP.
(417) 345-5926
[email protected] Zhao
PC57.19.04
Standard Performance Characteristics and Dimensions for High Current Power Transformer Bushings
06/16/201112/31/2015
New Project
PAR Extension Requested /on December Agenda
Digby(919) [email protected]
S.
65700-19-03 Standard Requirements, Terminology, and Test Code for Bushing for DC Applications
201412/31/2024
Approved
IEEE /IEC Dual Logo Approved by SASB in June 2014
Recksiedler204 474 3192
C57.19.00 Standard General Requirements and Test Procedure for Power Apparatus Bushings
200412/08/2020
Approved
Formally Std. IEEE 21 Previous revision 1991. Errata issued March 2010Reaffirmation approved 12/8/2010
Ellis(615) [email protected]
K. P.
C57.19.01
PC57.19.01
IEEE Standard Performance Characteristics and Dimensions for Outdoor Apparatus Bushings
200012/31/2018
12/08/201012/31/2017
Approved +PAR for Revision
Formally Std. IEEE 24 Reaffirmed in 2005.PAR for Rev first approved Dec 2010Mar '10: NesCom extended PAR, unitl December 2013PAR Extension until 2017 approved in March 2014
Zhang585 768 [email protected]
S.
C57.19.100 IEEE Guide for Application of Power Apparatus Bushings
199512/31/2022
Approved
New PAR requested and approved to 12/31/2010.NESCOM approved Extension till Dec 2012Revision approved Dec 2012
Spitzer(817) [email protected]
T.
Page 7 of 23Prepared by W. Bartley, Transformers Standards Coordinator march 18
STANDARDPROJECT
TITLEPub YearRev Due Dat
PAR Issue DatPAR Expiration
Standard StatusRemark
Working Group Chair
EmailPhone
SubCommittee DIELECTRIC TESTSM. A.
(802) 751-3539
[email protected] Franchek
PC57.160
Guide for PD Meas in HV Bushings & Inst Transformers
03/06/201312/31/2017
New Project
T. Hochanh appointed as new WG Chair, Oct 2014
Hochanh(450) [email protected]
T.
PC57.161
Guide for DFR Measurements 08/22/201312/31/2017
New projectNaderian
A.
C57.113 IEEE Guide for Partial Discharge Measurement in Liquid-Filled Power Transformers and Shunt Reactors
199106/17/2020
Approved std
Revision approved June 2010
Poulin(450) [email protected]
B.
C57.127
PC57.127
IEEE Guide for the Detection of Acoustic Emissions from Partial Discharges in Oil-Immersed Power Transformers
200712/31/2018
02/16/201512/31/2019
Approved +PAR for revision
PAR for revision approved Feb 2015
Gross
C57.138
PC57.138
IEEE Recommended Practice for Routine Impulse Test for Distribution Transformers
199812/31/2018
02/02/201112/31/2016
Approved - Reaffirmed in June '05
Reaffirmation approved by RevCom on 6/8/05.Dec '10: Nescom approved new PAR until Dec31 2015PAR Extension approved Oct 2015 for one additional year
Molden(845) [email protected]
A.
C57.98 IEEE Guide for Transformer Impulse Tests 199412/31/2021
Approved -Molden(845) [email protected]
A.
Page 8 of 23Prepared by W. Bartley, Transformers Standards Coordinator march 18
STANDARDPROJECT
TITLEPub YearRev Due Dat
PAR Issue DatPAR Expiration
Standard StatusRemark
Working Group Chair
EmailPhone
SubCommittee DISTRIBUTION TRANSFORMERSS.
(417) 625-6110
[email protected] Shull
PC57.12.33
Guide for Distribution Transformer Loss Evaluation PAR WITHDRAWN - Inactive WG
Decision made at Las Vegas Meeting to discontinue this activity.
Pekarek(330) [email protected]
T. J.
PC57.12.39
Standard Requirements for Distribution Transformer Tank Pressure Coordination
02/06/201212/31/2016
New ProjectGaytan(52) 818 03022 [email protected]
C.
C57.12.20
PC57.12.20
Standard for Overhead Type Distribution Transformers, 500 kVA and Smaller, High-Voltage 34 500 Volts and Below; Low-Voltage, 7970/13 800 Y Volts and Below
201106/16/2021
06/08/201212/31/2016
Approved Standard with approved PAR for Revision
PAR for Revision approved June 2012
A.
C57.12.28 Standard for Pad Mounted Equipment - Enclosure Integrity
201412/31/2024
Approved
Previously NEMA/ANSI C57.12.28‐1999
R.
C57.12.29 Standard for Pad Mounted Equipment - Enclosure Integrity for Coastal Environments
201412/31/2024
Approved
Previously NEMA/ANSI C57.12.29‐1991
R.
C57.12.30 Std for Pole-Mounted Eqpt - Enclosures for Coastal Environment 06/17/2020
Approved new standard
new standard approved June 2010
R.
C57.12.31 IEEE Standard for Pole Mounted Equipment - Enclosure Integrity
200212/31/2024
R.
C57.12.32
PC57.12.32
Standard for Submersible Equipment - Enclosure Integrity
200212/31/2018
06/03/201512/31/2019
Approved + Active PAR for Revision
Published 3/7/2003.Reaffirmation approved Mar 2008PAR for Revision approved June 2015
Mulkey(415) [email protected]
D. H.
C57.12.34 Requirements for Pad-Mounted, 3-Phase DistributionTransformers, <2500 kVA HV <34 500 LV <480 Volts
12/09/2025Approved
Originally Std. 1447, Combined C57.22‐1980 & C57.12.26‐1992Revised Standard approved Dec09Mar '11: Nescom approved new PAR for RevisionRevision approved Sept 2015
Shull(417) [email protected]
S.
C57.12.35 IEEE Standard for Bar Coding for Distribution Transformers
200712/31/2023
Approved
Formally P1265.Revision approved December 2013
Matthews(601) [email protected]
P
C57.12.36
PC57.12.36
Standard Requirements for Liquid-Immersed Distribution Substation Transformers
200712/31/2018
12/07/201112/31/2015
Approved std and approved PAR for Revision
approved by SA Board on 9/27/2007PAR for Revision approved Dec '11PAR Extension requested
Murphy(407) [email protected]
J.R.
Page 9 of 23Prepared by W. Bartley, Transformers Standards Coordinator march 18
STANDARDPROJECT
TITLEPub YearRev Due Dat
PAR Issue DatPAR Expiration
Standard StatusRemark
Working Group Chair
EmailPhone
SubCommittee DISTRIBUTION TRANSFORMERSS.
(417) 625-6110
[email protected] ShullC57.12.37 IEEE Standard for the Electronic Reporting of
Transformer Test Data200612/31/2025
Approved
Formally C57.132, IEEE Std 1388‐2000 D11d approved by SA Board on 3/30/2006.Published 7/21/2006. New PAR for Revision approved Dec'11Revision approved Sept 3 2015
Callsen847 398 [email protected]
T.
C57.12.38
PC57.12.38
Standard for Pad-Mounted, Single-Phase Distribution Transformers, <167kVA, HV <34500 LV 240/120 Volts
201412/31/2024
10/19/201512/31/2019
Approved + Active PAR for Revision
This std replaces C57.12.21 & C57.12.25
Ghafourian
A. A.
C57.15
PC57.15
IEEE Standard Requirements, Terminology, and Test Code for Step-Voltage Regulators
199909/11/2019
03/27/201412/31/2018
Approved
Also known as 60076‐21‐2011PAR for Revision approved March 2014 PAR Modification approved June 2014
Colopy(262) [email protected]
C. A.
Page 10 of 23Prepared by W. Bartley, Transformers Standards Coordinator march 18
STANDARDPROJECT
TITLEPub YearRev Due Dat
PAR Issue DatPAR Expiration
Standard StatusRemark
Working Group Chair
EmailPhone
SubCommittee DRY TYPE TRANSFORMERSC. W.
(276) 688-1512
[email protected] Johnson, Jr.C57.12.01 IEEE Standard General Requirements for Dry-
Type Distribution and Power Transformers Including Those with Solid Cast and/or Resin Encapsulated Windings
201512/31/2025
Approved
1998 version was approved in 2005 /Published 2006 PAR for Revision approved Dec 09. Revision approved by SASB Feb 2015
Holdway423 677 [email protected]
T.
C57.12.51
PC57.12.51
Ventilated Dry-Type Power Transformers, 501 kVA and Large, Three-Phase, with High-Voltage 601 to 34500 Volts; Low-Voltage 208Y/120 to 4160 Volts - General Requirements
12/31/201808/21/201412/31/2018
Approved + Active PAR for Revision
Previously NEMA document C57.12.51, original publication by NEMA in 1981, Reaffirmed in 1998. This document was transferred to IEEE in Dec., 2002.Approved by SA Sept 2008. PAR for Revision approved Aug 2014
Som724 472 [email protected]
S.K.
C57.12.52 Standard Requirements for Sealed Dry-Type Power Transformers, 501 kVA and Larger, Three-Phase, with High-Voltage 601 to 34 500 Volts, Low-Voltage 208Y/120 to 4160 Volts
198112/31/2022
Approved
Previously ANSI C57.12.52‐1981SA approved Dec 2012
Kennedy(716) [email protected]
S. P.
C57.12.58
PC57.12.58
IEEE Guide for Conducting a Transient Voltage Analysis of a Dry-Type Transformer Coil
199112/31/2018
09/03/201512/31/2019
Approved - Active, and PAR approved
Reaffirmed Sept 2008PAR approved for Revision Sept 2015
Wicks(804) [email protected]
R. C.
C57.12.59 IEEE Guide for Dry-Type Transformer Through-Fault Current Duration
200112/31/2025
Approved
Reaffirmation approved in 12/5/2006.PAR for Revision and approved Dec'11PAR Modification (changing Scope) approved Dec 2014Revision Approved Sept 3 2015
Powell(202) [email protected]
P. A.
C57.12.60
PC57.12.60
IEEE Guide for Test Procedures for Thermal Evaluation of Insulation Systems for Solid Cast and Resin-Encapsulated Power and Distribution Transformers
199811/09/2019
06/03/201512/31/2019
Approved with Corrigenda + Active PAR for Revision
IEEE Std C57.12.56‐1986 and IEEE Std C57.12.60‐1998 merged together in 2009Corrigenda 1 approved by SA June 2013
Ballard804 383 [email protected]
R.C
C57.12.91 IEEE Standard Test Code for Dry-Type Distribution and Power Transformers
200112/31/2021
ApprovedFoster(815) [email protected]
D. R.
C57.124 IEEE Recommended Practice for the Detection of Partial Discharge and the Measurement of Apparent Charge in Dry-Type Transformers
199112/09/2019
Approved
Reaffirmed Dec09
Johnson, Jr.(276) [email protected]
C. W.
C57.134 IEEE Guide for Determination of Hottest Spot Temperature in Dry Type Transformers
200012/31/2023
Approved
Reaffirmation approved 3/30/2006PAR for Revision approved Dec'11Std apprroved by SASB Dec 11 2013
Powell(202) [email protected]
P. A.
C57.16
PC57.16
IEEE Standard Requirements, Terminology, and Test Code for Dry-Type Air- Core Series-Connected Reactors
199612/31/2021
Approved
Revision approved by Std Bd Sept 2011
Dudley(416) [email protected]
R. F.
Page 11 of 23Prepared by W. Bartley, Transformers Standards Coordinator march 18
STANDARDPROJECT
TITLEPub YearRev Due Dat
PAR Issue DatPAR Expiration
Standard StatusRemark
Working Group Chair
EmailPhone
SubCommittee DRY TYPE TRANSFORMERSC. W.
(276) 688-1512
[email protected] Johnson, Jr.C57.94
PC57.94
IEEE Recommended Practice for Installation, Application, Operation, and Maintenance of Dry-Type General Purpose Distribution and Power Transformers
198212/31/2018
12/09/201112/31/2015
Approved
Reaffirmation approved by the SA Board on 12/6/2006PAR for Revision approved Dec'11Std Submitted to Revcom and on Dec. Agenda
Stankes(603) 545-3026
S
C57.96
PC57.96
IEEE Guide for Loading Dry Type Distribution and Power Transformers
199912/31/2023
Approved - Active
RevCom approved reaffirmation on 9/22/2004Previous revision in 1994. PAR for Revision approved Dec 2009Ballot completed and on Dec2013 Revcom agenda.Approved by SASB Dec11 2013
Marek(804) [email protected]
R. P.
IEEE 259 IEEE Standard Test Procedure for Evaluation of Systems of Insulation for Dry-Type Specialty and General-Purpose Transformers
199903/25/2020
Approved
9/22/04 ‐ RevCom approved reaffirmationReaffirmed March 2010
Stankes(603) 545-3026
S
SubCommittee HVDC CON TX & SMRsM.
416-298-8108
[email protected] SharpC57.129
PC57.129
IEEE General Requirements and Test Code for Oil Immersed HVDC Converter Transformers
200712/31/2018
12/10/201412/31/2018
Approved + New PAR for Revision
Trial use std published 6/6/2000; upgraded to full use 3/2002Approved by SA Board 9/27/2007
Radbrandt
IEEE 1277 IEEE General Requirements and Test Code for Dry-Type and Oil-Immersed Smoothing Reactors for DC Power Transmission
200012/31/2020
Approved.
Ballot approved March 2010
Dudley(416) [email protected]
R. F.
Page 12 of 23Prepared by W. Bartley, Transformers Standards Coordinator march 18
STANDARDPROJECT
TITLEPub YearRev Due Dat
PAR Issue DatPAR Expiration
Standard StatusRemark
Working Group Chair
EmailPhone
SubCommittee INSTRUMENT TRANSFORMERSR.
(416) 751-8570
[email protected] McTaggart
PC57.13.7
Standard for Instrument Transformer with max output of 250ma
09/30/201012/31/2016
New Project
New project approved by NESCOM Sept 2010PAR Extension approved Dec 14 until 2016
Alton
PC57.13.8
Standard Requirements for Station Service Voltage Transformers
12/11/201312/31/2017
Active PARWallace
PC57.13.8
Standard Requirements for Station Service VTs 12/11/201312/31/2017
New Project
PAR approved Dec13 SB
Wallace
C57.13
PC57.13
IEEE Standard Requirements for Instrument Transformers
200812/31/2018
09/30/201012/31/2016
Approved - Active PAR for Corrigenda
PAR for Corrigenda withdrawn Dec 2014PAR to Extension approved Dec 2014 until 2016
McTaggart(416) [email protected]
R.
C57.13.2 Conformance Test Procedure for Instrument Transformers
200506/17/2020
Approved
PAR to Revise Std C57.13.2‐1991; harmonize with C57.13‐1993D4 approved by RevCom on 6/8/2005; Published 9/29/2005.Reaffirmed 6/17/2010
Smith(601) [email protected]
J. E.
C57.13.5
PC57.13.5
Standard of Performance and Test Requirements for Instrument Transformers of a Nominal System Voltage of 115 kV and Above
200609/11/2019
Approved
Reference Std. 1400Previously C57.13.5 was a trial useUpgraded to Full Use 3/30/2006
Riffon(514) 840-3000 [email protected]
P.
C57.13.6 Standard for High Accuracy Instrument Transformers 06/17/2020
Approved
Document published in 12/9/2005Reaffiremed 2010
Smith(601) [email protected]
J. E.
Page 13 of 23Prepared by W. Bartley, Transformers Standards Coordinator march 18
STANDARDPROJECT
TITLEPub YearRev Due Dat
PAR Issue DatPAR Expiration
Standard StatusRemark
Working Group Chair
EmailPhone
SubCommittee INSULATING FLUIDSD.J.
(980) 373-4167
[email protected] WallachC57.104
PC57.104
IEEE Guide for the Interpretation of Gases Generated in Oil-Immersed Transformers
199112/31/2018
01/09/201012/31/2017
Active + New PAR for Revision
Original PAR and document withdrawn in Dec. 2005. New PAR approved Jan 2010PAR Extension approved Dec‐14 until 2017
Ladroga978 410 [email protected]
R. K.
C57.106
PC57.106
IEEE Guide for Acceptance and Maintenance of Insulating Oil in Equipment
200612/31/2018
11/09/201112/07/2015
Approved Standard
PAR for Revision approved Dec'11Std Submitted to Revcom and on Dec '15 Agenda
Rasor
B.
C57.111 IEEE Guide for Acceptance of Silicone Insulating Fluid and Its Maintenance in Transformers
198303/19/2019
ApprovedBoman(785)[email protected]
P.E.
C57.121 IEEE Guide for Acceptance and Maintenance of Less-Flammable Hydrocarbon Fluid in Transformers
199812/09/2019
Approved
Was to be administratively withdrawn in Dec., 2004Reaffirmation ballot pool invitation initiated in October, 2005.Reaffirmed Dec 2009
Sundin903 231 [email protected]
C57.130 Guide for the Use of Dissolved Gas Analysis During Factory Temeprature Rise Tests for the Evaluation of Oil-Immersed Transformers and Reactors
201512/31/2025
Approved
New PAR approved June 2010 ‐ currently under ballot resolutionStandard Approved October 2015
J. A.
C57.139 Guide for Dissolved Gas Analysis in Transformer Load Tap Changers
201012/08/2020
Approved
PC57.139 was approved as a new standard by IEEE‐SA Dec 8, 2010PAR for revision approved June 2011Standard submitted to Revcom and on Dec '15 Agenda
Wallach(980) [email protected]
D.J.
C57.146 Guide for Interpretation of Gasses Generated in Silicone-Immersed Transformers
200506/16/2021
Approved
Reaff approved 16‐June‐11.
Murphy(407) [email protected]
J.R.
C57.147
PC57.147
Guide for Acceptance and Maintenance of Natural Ester Fluids in Transformers 12/31/2018
02/06/201212/31/2016
Active with active PAR for Revision
New Standard approved May 2008
McShane262 366 [email protected]
C. P.
C57.155 DGA Guide for Esters filled Transformers12/31/2024
Approved
PAR approved by NESCOM ‐ March‐2010Approved by SASB Nov 2014
Boman(785)[email protected]
P.E.
C57.637 IEEE Guide for the Reclamation of Insulating Oil and Criteria for Its Use
198512/31/2018
Approved
Reaffirmation approved by SA Board 9/27/2007PAR for Revision approved Dec 2008PAR extension approved June 2012, until Dec 2014Another Extension granted until Dec 2015
J. A.
Page 14 of 23Prepared by W. Bartley, Transformers Standards Coordinator march 18
STANDARDPROJECT
TITLEPub YearRev Due Dat
PAR Issue DatPAR Expiration
Standard StatusRemark
Working Group Chair
EmailPhone
SubCommittee INSULATION LIFES. P.
(716) 896-6500
[email protected] Kennedy
PC57.145
Guide for the Definition of Thermal Duplicate Liquid-Immersed Distribution, Power, and Regulating Transformers
0 PAR WITHDRAWN Dec 2004
Previously P1524 Modified PAR to expire in 2004PAR administratively withdrawn in December, 2004
Beaster(601) [email protected]
B. L.
PC57.162
Guide for Interpretation of Moisture in Transformers
08/23/201312/31/2017
T. A.
C57.100 IEEE Standard Test Procedure for Thermal Evaluation of Liquid-Immersed Distribution and Power Transformers
199912/31/2021
Approved Standard
Requested PAR for revision on 10/18/2004. 1st Ballot ‐2010; 1st Recirc Sept 2011; 2nd Recirc closed 20‐Oct'2011APPROVED Dec 2011
Wicks(804) [email protected]
R. C.
C57.119
PC57.119
IEEE Recommended Practice for Performing Temperature Rise Tests on Oil Immersed Power Transformers at Loads Beyond Nameplate Ratings
200112/31/2018
Approved
Previously IEEE 838. Published 3/12/2002.Reaffirmed Mar 2008PAR for Revision is on Oct 9 Agenda
Kennedy(402) [email protected]
G. R.
C57.154 Design, Testing and App of Liquid-Immersed Transformers with High-Temp Insulation
201212/31/2022
New Standard
PAR for new standard approved March 2009Standard Bd approved Aug 30, 2012
Marek(804) [email protected]
R. P.
C57.91 IEEE Guide for Loading Mineral-Oil-Immersed Transformers
199512/31/2021
Approved
Combined from C57.91‐1981 & C57.92‐1981 & C57.115‐1991
Duckett(407) [email protected]
D. A.
IEEE 1276
P1276
IEEE Guide for the Application of High-Temperature Insulation Materials in Liquid-Immersed Power Transformers
199712/31/2018
02/06/201212/31/2016
Approved with active PAR for Revision
Reaffirmation approved by SA Board in 3/30/2006PAR for Revision approved by Std Bd Feb 2012PAR Mod approved Mar 2014
Wicks(804) [email protected]
R. C.
IEEE 1538
P1538a
IEEE Guide for Determination of Maximum Winding Temperature Rise in Liquid Filled Transformer
200012/31/2021
06/12/201412/31/2018
Approved with Amendment
PAR for Amendment approved June 2014Amendment approved Sept 3, 2015
Marek(804) [email protected]
R. P.
Page 15 of 23Prepared by W. Bartley, Transformers Standards Coordinator march 18
STANDARDPROJECT
TITLEPub YearRev Due Dat
PAR Issue DatPAR Expiration
Standard StatusRemark
Working Group Chair
EmailPhone
SubCommittee PERFORMANCE CHARACTERISTICSE.G.
(519) 837-4691
[email protected] TeNyenhuis
P60076-16
Standard Requirements for Wind Turbine Generator Transformers
06/08/201212/31/2016
Approved PAR
PAR approved June 2012 /This is an IEC Joint developmentPAR Modification approved Dec 2014
D.E.
PC57.133
Guide for Short-Circuit Testing of Distribution and Power Transformers
PAR WITHDRAWN
This PAR was withdrawn by consensus of PCSC. Proposed contents are reportedly addressed in C57.12.90.
M.
PC57.158
Guide for the Application of Tertiary and Stabilizing Windings in Power Transformers
05/15/201212/31/2016
Approved PARBetancourt(52-80)[email protected]
E.
PC57.159
Guide for Application in Distributed Photovoltaic (DPV) Transformers in Power Generation Systems
06/08/201212/31/2016
Approved PARShertukde(860) [email protected]
H.M.
C57.105
PC57.105
IEEE Guide for Application of Transformer Connections in Three-Phase Distribution Systems
197812/31/2018
03/26/201512/31/2019
Approved
Was to be administratively withdrawn in 2004, but extended to 2006. Reaffirmed 20082014 ‐ New TF formed for Revision of 105PAR approved Mar 2015
Bromley970 221 [email protected]
A.
C57.109
PC57.109
IEEE Guide for Liquid-Immersed Transformers Through-Fault-Current Duration
199312/31/2018
03/26/201512/31/2019
Approved
Reaffirmed Mar 20082014: New TF formed for Revision of 109PAR approved Mar 2015
Mehrota(262) 547 0121 [email protected]
V.
C57.110
PC57.110
IEEE Recommended Practice for Establishing Transformer Capability When Supplying Nonsinusoidal Load Currents
200812/31/2018
06/12/201412/31/2018
Approved
Approved by SA Mar 2008PAR for Revision approved June 2014
Marek(804) [email protected]
R. P.
C57.120
PC57.120
IEEE Loss Evaluation Guide for Power Transformers and Reactors
199112/31/2018
03/24/201012/31/2016
Approved - revision in progress
Reaffirmation approved by RevCom 6/8/2006.PAR for Revision submitted 2010 to merge C57.120 & C57.12.33PAR extended until 2016 by SASB, in June 2014
A.
C57.123 IEEE Guide for Transformer Loss Measurement 200206/17/2020
Approved std
Ref Std. IEEE 1098Revision approved June 2010
TeNyenhuis(519) [email protected]
E.G.
C57.136 IEEE Guide for Sound Level Abatement and Determination for Liquid- Immersed Power Transformers and Shunt Reactors Rated Over 500 kVA
200012/31/2018
Approved
PAR for Revision approved by NESCOM Sept 2010PAR for Revision was Withdrawn in December 2014
Antosz(412) [email protected]
S.
C57.142
PC57.142
A Guide To Describe The Occurrence And Mitigation Of Switching Transients Induced By Transformer-Breaker Interaction
201012/08/2020
Approved
PC57.142 was approved as a new standard on December 8, 2010
Degeneff(518) [email protected]
R. C.
Page 16 of 23Prepared by W. Bartley, Transformers Standards Coordinator march 18
STANDARDPROJECT
TITLEPub YearRev Due Dat
PAR Issue DatPAR Expiration
Standard StatusRemark
Working Group Chair
EmailPhone
SubCommittee PERFORMANCE CHARACTERISTICSE.G.
(519) 837-4691
[email protected] TeNyenhuisc57.149 Guide for the Application and Interpretation of
Frequency Response Analysis for Oil Immersed Transformers
201212/31/2022
APPROVEDSweetser (781) 672-6214<[email protected]>
C.L.
C57.18.10 IEEE Standard Practices and Requirements for Semiconductor Power Rectifier Transformers
199801/30/2019
Approved
Replaced the C57.18‐1964 for pool cathode mercury‐arc rectifiers.Amendment 1: Technical and Editorial Corrections was approved 3/27/08Reaffirmed March 2009
Kennedy(716) [email protected]
S. P.
C57.21
PC57.21
IEEE Standard Requirements, Terminology, and Test Code for Shunt Reactors Rated Over 500 kVA
199012/31/2018
08/21/201412/31/2018
Approved + Active PAR for Revision
Reaffirmation approved on 6/23/2004.Revised Std approved Mar 2008PAR approved Aug 2014
Som724 472 [email protected]
S.K.
C57.32 IEEE Standard Requirements, Terminology, and Testing Procedures for Neutral Grounding Devices
197212/31/2018
Approved - Active PAR to revise std
Dec. 2002 ‐ Sponsor changed from PES/SPD to PES/TR; PAR Modified and extended to Dec 2011; PAR stalled Oct'11, without a ballot. PAR withdrawn & New PAR submitted Oct'11, approved by Stds Bd Dec '11Standard submitted to Revcom and on Dec '15 Agenda
Kennedy(716) [email protected]
S. P.
Page 17 of 23Prepared by W. Bartley, Transformers Standards Coordinator march 18
STANDARDPROJECT
TITLEPub YearRev Due Dat
PAR Issue DatPAR Expiration
Standard StatusRemark
Working Group Chair
EmailPhone
SubCommittee POWER TRANSFORMERSJ.D.
561 371 9138
[email protected] Watson
P60076-57-1
Standard Requirements for Phase Shifting Transformers
06/08/201212/31/2016
Approved PAR
PAR approved June 2012This is an IEC Joint development
Ahuja(408) [email protected]
R. K.
P60214-2
Tap Changers- Part 2: Application Guide 06/12/201412/31/2018
New PARColopy(262) [email protected]
C. A.
PC57.156
Guide to Tank Rupture Mitigation 06/16/201112/31/2015
New Project
PAR Extension requested /on Dec '15 Agenda
Zhao(417) [email protected]
P.
C57.116 IEEE Guide for Transformers Directly Connected to Generators
201412/31/2024
Approved
Std approved by SASB Mar 2014
Hoffman(973) [email protected]
G.
C57.117 IEEE Guide for Reporting Failure Data for Power Transformers and Shunt Reactors on Electric Utility Power Systems
198612/31/2018
Withdrawn
Previously IEEE 786‐1986, original approval date 6/19/1986.Oct 2010 decision to merge with C57.125.This standard is still Active because of PAR for revison of C57.125.This will be withdrawn when Revision of C57.125 is approved.
Binder, Jr.(724) [email protected]
W. B.
C57.12.10
PC57.12.10
Standard Requirements for Liquid-Immersed Power Transformers
199709/30/2020
03/26/201512/31/2019
Approved with PAR for revision
Formally NEMA/ANSI document.Corrigenda 1 approved December 2012PAR for Corrigenda 2 approved June 2013Corrigenda 2 approved by SASB Oct 2013
Hoffman(973) [email protected]
G.
C57.125 IEEE Guide for Failure Investigation, Documentation, and Analysis for Power Transformers and Shunt Reactors
199112/31/2025
Approved
Oct'10: decision to merge with C57.117. Feb'11: NESCOM approved new PAR to merge 117 and 125.Standard approved Sept 2015
Binder, Jr.(724) [email protected]
W. B.
C57.131 IEEE Standard Requirements for Load Tap Changers
199512/31/2022
Approved Standard
PAR Modified Dec 09 and extended to Dec 2010.Dec '10: Nescom & Revcom extend untul Dec31 20111st Ballot closed May'11; 1st Recirc closed 21‐Oct; Std was approved Mar 2012
C57.135 IEEE Guide for the Application, Specification and Testing of Phase- Shifting Transformers
200106/16/2021
Approved
Approved for IEEE/IEC Dual Logo Dec. 2005 ‐ IEC 62032 Ed. 1
Sim(919) [email protected]
H. J.
Page 18 of 23Prepared by W. Bartley, Transformers Standards Coordinator march 18
STANDARDPROJECT
TITLEPub YearRev Due Dat
PAR Issue DatPAR Expiration
Standard StatusRemark
Working Group Chair
EmailPhone
SubCommittee POWER TRANSFORMERSJ.D.
561 371 9138
[email protected] WatsonC57.140
PC57.140
Evaluation and Reconditioning of Liquid Immersed Power Transformers
200612/31/2018
03/31/201112/31/2017
Approved
D18 approved by RevCom 11/16/2006Mar '11: Nescom approved new PAR until Dec31 2015PAR Extension approved Sept 2015 for 2 more years
Boman(785)[email protected]
P.E.
C57.143 Guide for Application for Monitoring Equipment to Liquid-Immersed Transformers and Components 12/31/2023
ApprovedChu(212) [email protected]
D.
C57.148 Standard for Control Cabinets for Power Transformers
201109/10/2021
Approved Standard
Approved by Std Bd Sept 2011
Watson561 371 [email protected]
J.D.
C57.150 Guide for the Transportation of Large Power Transformers and Reactors
201212/31/2022
ApprovedAnderson(402) [email protected]
G. W.
C57.153 Guide for Paralleling Power Transformers Approved
PAR approved Mar 2008 PAR Extension granted May 2012, until Dec2014PAR modification approved Dec 2014Std approved by SASB March 2015
Jauch(727) [email protected]
E.T.
C57.157 Guide for Conducting Functional Life Tests for De-energized Tap-changer Contacts
201512/31/2025
Approved
PAR for New standard approved Dec'11PAR Modification (changing title and scope) approved Dec 2014Standard approved Oct 2015
Hopkinson(704) [email protected]
P. J.
C57.17 Standard Requirements for Arc Furnace Transformers 12/31/2022
Approved
ANSI issued the original C57.17 standard in 1965.
Ganser(330) [email protected]
R.
C57.93
PC57.93
IEEE Guide for Installation of Liquid-Immersed Power Transformers
199512/31/2018
03/29/201212/31/2016
Approved Standard - with approved PAR for Revision
Rev of ASA C57.93‐1958, IEEE Std C57.12.11‐1980, & C57.12.12‐1980PAR to Revise IEEE Std C57.93‐1995 Approved by RevCom 12/2007PAR for Revision was approved March 2012
Lau(604) [email protected]
M. Y.
IEEE 638 IEEE Standard for Qualification of Class 1E Transformers for Nuclear Power Generating Stations
199212/31/2023
Approved - Active
Reaffirmation approved by SA Board 3/30/2006.New PAR for revision approved 6/7/2007. Standard approved by SASB Dec 11 2013
Swinderman(724) [email protected]
C.
Page 19 of 23Prepared by W. Bartley, Transformers Standards Coordinator march 18
STANDARDPROJECT
TITLEPub YearRev Due Dat
PAR Issue DatPAR Expiration
Standard StatusRemark
Working Group Chair
EmailPhone
SubCommittee STANDARDSW. H.
(860) 205-0803
[email protected] BartleyC57.12.00
PC57.12.00
IEEE Standard for General Requirements For Liquid-Immersed Distribution, Power, and Regulating Transformers
201006/17/2020
06/16/201112/31/2015
Approved
2010 rev approved by SA Board in June, 2010. Published 9/10/2010.Std submitted to REVCOM /on Dec '15 Agenda
Snyder(731) [email protected]
S. L.
C57.12.70
C57.12.70
IEEE Standard Terminal Markings and Connections for Distribution and Power Transformers
200012/31/2021
10/19/201512/31/2019
Approved + Active PAR for Corrigenda
Published 3/16/2001. Reaff approved by RevCom 3/30/2006.New Revision approved by Std Board Dec 2011
Shull(417) [email protected]
S.
C57.12.80 IEEE Standard Terminology for Power and Distribution Transformers
200209/30/2020
Approved std
Amendment PAR approved to add thermally upgraded definitionRevision approved Sept 2010
Chiu(626) [email protected]
B.
C57.12.90
PC57.12.90
IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers
200606/17/2020
06/16/201112/31/2015
Approved
Published Oct 2010 PAR for Continuous Revision approved June 2011Standard submitted to RevCom /on Dec '15 Agenda
Antosz(412) [email protected]
S.
C57.144 Guide for Metric Conversion of Transformer Standards
200403/25/2020
Approved
Published 10/22/2004Reaffirmed March 2010
Balma(973) [email protected]
P.M.
C57.152 IEEE Guide for Diagnostic Field Testing of Power Apparatus - Part 1: Oil Filled Power Transformers, Regulators, and Reactors
199512/31/2023
Approved
Originally IEEE 62. Reaff was successful.in 2005. New WG formed to revise document on a continuous basis based on TF recommendation. Revision changed to C57 series,
Verner202 [email protected]
J. A.
C57.163
PC57.163
Guide for Establishing Power Transformer Capability while under Geomagnetic Disturbances 12/31/2025
03/27/201412/31/2018
Approved Standard
Approved by Standards Board Sept 2015
Verner202 [email protected]
J. A.
Page 20 of 23Prepared by W. Bartley, Transformers Standards Coordinator march 18
STANDARDPROJECT
TITLEPub YearRev Due Dat
PAR Issue DatPAR Expiration
Standard StatusRemark
Working Group Chair
EmailPhone
SubCommittee UNDERGROUND TR & NW PROTECTD. H.
(415) 973-4699
[email protected] MulkeyC57.12.23
PC57.12.23
IEEE Standard for Underground Type, Self-Cooled, Single-Phase Distribution Transformers with Separable Insulated High-Voltage Connectors; High Voltage 25kV and Below; Low Voltage 600V and Below
200903/19/2019
08/21/201412/31/2018
Approved + active PAR for Revision
Published 4/20/2009PAR for Revision approved Aug 2014
A.
C57.12.24
PC57.12.24
Requirements for Transformers - Underground-Type, Three Phase Distribution Transformers: High Voltage (34 500 GrdY/19 920 V and Below) and Low Voltage (480V and Below, 2500 kVA and Smaller
200006/17/2019
11/09/201112/31/2015
Approved standard
New PAR for Revision approved Nov '11PAR Extension Requested /on Dec '15 Agenda
Termini(610) [email protected]
G.
C57.12.40
PC57.12.40
Standard for Requirements for Secondary Network Transformers - Subway and Vault Types (Liquid Immersed)
201112/31/2021
08/30/201212/31/2016
Approved Standard with approved PAR for Revision
Approved ‐ C57.12.40‐2011
Klaponski(204) [email protected]
B.
C57.12.44
PC57.12.44
IEEE Standard Requirements for Secondary Network Protectors
201412/31/2024
03/26/201512/31/2019
Approved + PAR for Revision
PC57.12.44 ‐2014 approved by SASB March 2014
Wimmer(804) [email protected]
W. G.
C57.12.57 Requirements for Ventilated Dry-Type Network Transformers 2500 kVA and Below, Three-Phase with High Voltage 34 500 Voltas and Below, Low Voltage 216Y/125 and 480Y/125 Volts
199212/31/2000
Standard WITHDRAWN in 2001
Existing standard withdrawn by IEEE on 1/15/2001. No longer endorsed by IEEE.
Robinson(361) [email protected]
A. L.
Page 21 of 23Prepared by W. Bartley, Transformers Standards Coordinator march 18
IEEE/PES Transformers Committee
Chair: Stephen Antosz
Vice Chair: Susan McNelly Secretary: Bruce Forsyth Treas: Greg Anderson
Past Chair: Donald Platts Std. Coordinator: Jim Graham
Instrument
Ross McTaggart
HVDC Converter Xfmrs &
Smoothing Reactors
Michael Sharp
Dry Type
Chuck W. Johnson
Distribution
Steve Shull
Bushing
Peter Zhao
Power
Joe Watson
UG & NW Protector
Dan Mulkey
Gen. Req. of Bushings
Rev of C57.19.00
K. Ellis
Bushing App. Guide
C57.19.100
T. Spitzer
OH Dist. Xfmrs
C57.12.20
A. Traut
Eqp Encl. Integrity
C57.12.28, 12.29,
12.30, 12.31, & 12.32
R. Olen
Elec Rpt of Test Data
IEEE 1388/C57.12.37
T. Callsen
General Req.
C57.12.01
R. Ballard
Req. & Test Code for
HVDC Con. Xfmr
C57.129
R. Dudley
Req. & Test Code for
HVDC Smoothing
Reactors IEEE 1277
U. Radbrandt
Step Volt. Regulator
C57.15
C. Colopy
Req for Inst. Xfmrs
C57.13
R. McTaggart
Test Proc. For Inst.
Xfmrs
C57.13.2
J.E. Smith
Test Req. for >= 115kV
PC57.13.5
P. Riffon
Req. for Elect. Rev.
Metering
C57.13.6
J.E. Smith
Guide for Monitoring
C57.143
D. Chu
Directly Connected
GSU C57.116
G. Hoffman
Req. for L.I. Power
Xfmrs C57.12.10
G. Hoffman
Std. Req. for Sec.
Network Xfmrs
C57.12.40
B. Kaplonski
UG 3ph Dist Xfmr
< 2500KVA
C57.12.24
G. Termini
Dry Type Air-Core
Reactors
C57.16
A. Del Rio
Performance
Characteristics
C57.19.01
S. Zhang
Req. & Testing of DC
Bushings
C57.19.03
L. Recksiedler
Req.for Vent. >500KVA
PC57.12.51
S. Som
Req. for Sealed
>500kVA
PC57.12.52
S. Kennedy
Thermal Eval. for Dry-Type
C57.12.60
R. Wicks
Transient Analysis
C57.12.58
R. Wicks
Dry-Type Through Fault
Current Duration
C57.12.59
P/ Payne
Test Code
C57.12.91
D. Foster
IEEE 638 – Std for 1E
Tx at Nuc Gen Stations
C. Swinderman
Guide for Phase-Shift
Xfmrs
C57.135
(Open)
Eval & Reconditioning
C57.140
P.Boman
Std for Control Cabinet
C57.148
(Open)
Arc Furnace Xfmr
C57.17
R. Ganser
Installation & Maint
Guide C57.93
M. Lau
Req. for 3ph Pad Mount
C57.12.34
S. Schull
UG Self-Cool 1-ph
C57.12.23
A. Traut
Pad-Mount 1ph Self-
Cool <2500kVA
C57.12.38
A. Ghafourian
Bar Coding
C57.12.35
L. Matthews
Perf Characteristics for GSU Bushings
PC57.19.04 S. Digby
Transportation Guide
PC57.150
G. Anderson
Tank Rupture
Mitigation C57.156
P. Zhao
Requirements for LTC
C57.131
Dry-Type Hottest Spot
C57.134
P. Payne
Dry Type Op & Maint.
Guide
C57.94
D. Stankes
Dist. Sub. Xfmrs
C57.12.36
J. Murphy
Guide for Paralleling
C57.153
E.T. Jauch
Page 22 of 23
Failure Investigations
C57.125
W. Binder
Functional Life Tests
for DETC C57.157
P. Hopkinson
Req. for mA CT
C57.13.7
H. Alton
Tank Pressure
Coordination
C57.12.39
C. Gaytan
Revised by J.Graham
17 Mar, 2016
Std Requirements
Phase Shifters
P60076-57-1202
R. Ahuja
TF for SSVTs
PC57.13.8
D. Wallace
TF to compare req’s of composite vs traditional
bushings
Loading Guide for Dry
Type Xfmrs
C57.96
R. Marek
Dry-Type PD & Apparent
Charge Measurement
C57.124
T. Prevost
Std. Req. for Sec.
Network Protectors
C57.12.44
W. Wimmer
Vent Dry-Type Network
Xfmrs <=2500KVA
C57.12.57
A. Robinson
IEEE/PES Transformers Committee
Chair: Stephen Antosz
Vice Chair: Susan McNelly Secretary: Bruce Forsyth Treas: Greg Anderson
Past Chair: Donald Platts Std. Coordinator: Jim Graham
Insulating Fluids
Dave Wallach
Insulation Life
Sheldon Kennedy
Dielectric Test
Mike Franchek
Performance Characteristics
Ed teNyenhuis
Standards
Jerry Murphy
Req. & Test Code for
Shunt Reactors
>500kVA C57.21
S.Som
Semicon Rectifier Xfmrs
C57.18.10
S. Kennedy
App. Guide for Xfmr
Connections
C57.105
A. Bromley
Sound Level Abatement
C57.136
(Open)
Impulse Test Guide
for Dist Tx C57.138
A Molden
Rev of Low Freq. Tests
B. Poulin
Guide for Acoustic PD
C57.127
D. Gross
DGA Guide
C57.104
R. Ladroga
Mineral Oil
C57.106
R. Rasor
Silicone Oil
C57.111
P. Boman
DGA During Thermal
Test C57.130
J. Thompson
Less Fammmable
H-C Fluid C57.121
D. Sundin
Loading Guide
C57.91
Don Duckett
TF Investigate Use of
Furan Testing
S. Xu
Max. Wdg Temp Rise
IEEE 1538
R. Marek
Temp Rise Test Above
NP Rating C57.119
G. Kennedy
Thermal Eval Test
C57.100
R. Wicks
Cont Rev of C57.12.00
S. Snyder
Cont. Rev of C57.12.90
S. Antosz
Metric Conversion
C57.144
P. Balma
Terminology
C57.12.80
J.Graham
Meetings
Greg Anderson
Through-Fault Current
Duration
C57.109
V. Mehrotra
Non-Sinusoidal Load
Current C57.110
R. Marek
Xfmr Loss
Measurement
C57.123
E. teNyenhuis
Short Circuit Testing
PC57.133
M. Fortin
Sw Transients CB/Xfmr
C57.142
R. Degeneff
App. Of High Temp
Insulation IEEE 1276
R. Wicks
DGA in LTC
C57.139
D. Wallach
TF – Moisture in
Insulation
B. Rasor
Oil Reclamation
C57. 637
J. Thompson
DGA in Silicone
C57.146
J. Murphy
Website Development
S. McNelly
Terminal Markings &
Connections
S. Schull C57.12.70
Diagnostic Field Testing
J. Verner
IEEE C57.152 /(62)Neutral Grounding
Devices PC57.32
S. Kennedy
Educational
Development
T. Prevost
WG on Dielectric
Test Table
P. Hopkinson
Sound Level
Measurement
PC57.151
TF - Temp Rise Test -
C57.12.90, Clause 11
P. Powell
IEEE /IEC Cross
Reference TF
V. Mehrotra
Guide to Freq Response
Analysis C57.149
C. Sweetser
PCS Rev to
Test Code- 12.90
M. Perkins
PCS Rev. to
Gen Req - 12.00
T. Ansari
PD Measurement
On Bushings & Inst Tx
C57.160
T. Hochanh
Rev of Transient
Voltage Test
P. Riffon/P. Heinzig
WG- External Dielectric
Test Clearance
E. Davis
Page 23 of 23
WG – Std Req. Hi Temp
Insulation C57.154
R. Marek
DGA in Ester Fluids
C57.155
P. Boman
TF for Particle Count
M. Scarborough
App Guide for Ester
Fluids -C57.147
P. McShane
Windfarm Transformers
P60076-16
D. Buckmaster
TF – Winding Temp
Indicators
P. McClure
TF – Fluid terminology
consistency
P. McShane
Tertiary & Stabilizing
Windings PC57.158
E. Betancourt
Loss Evaluation Guide
PC57.120
R Verdolinm
Revised J.Graham
17 Mar, 2016
Moisture in Insulation
PC57.162
T. Prevost
Committee
History
P. Balma
WG- Guide for DFR
testing PC57.161
A. Naderian
DPV Grid Transformers
PC57.159
H. Shertukde
PD Measurement
C57.113
B. Poulin
Transformer Capability
under GMD J. Verner
IEEE C57.163
TF Consolidation of Fluids Guides
T.Prevost
APPENDIX 3
IEC TC14 Technical Advisor to USNC Report
IEC TC 14 Philip J Hopkinson, PE & TA
• International Electro-Technical Commission TC 14 Power Transformers• Voting Relationships between standards• P-Member Active Countries• Members of US TAG• Documents and Programs• Last Plenary Meeting October 15-16, 2015 in Boras, Sweden• Meeting this year October 10-11 in Frankfurt, Germany• Stability Dates
IEEE Transformers Committee 032116 1
IEC TC 14 Philip J Hopkinson, PE & TA
• International Electro-Technical Commission TC 14 Power Transformers:• Headquartered in Geneva, Switzerland• Scope > = 10 kVA, Voltage classes >1,000 Volts, ac and dc
• Voting Relationships between standards organizations• IEEE and Cigre: 1 person, 1 vote• NEMA and EEI: 1 company, 1 vote• IEC: 1 country, 1 vote
• All votes cast by Technical Advisers to National Committees to Geneva
IEEE Transformers Committee 032116 2
IEC TC 14 Philip J Hopkinson, PE & TA
Member Countries in IEC TC 14
IEEE Transformers Committee 032116 3
IEC TC 14 Philip J Hopkinson, PE & TA
US TAG in IEC TC 14 as currently active
IEEE Transformers Committee 032116 4
IEC TC 14 Philip J Hopkinson, PE & TA
Attendance in Boras, Sweden on October 15-16, 2015
IEEE Transformers Committee 032116 5
IEC TC 14 Philip J Hopkinson, PE & TA
Current statistics28 Documents14 Current Active Projects
IEEE Transformers Committee 032116 6
IEC TC 14 Philip J Hopkinson, PE & TA
14 Active Projects 76-20 Energy Efficiency76-7 Loading Guide WG-32 PT’s and Reactors76-9 Loss Measurement 76-22-2 Radiators76-57-129 HV Converter Transformers 76-22-3 Liquid to Air Coolers76-57-15 Step Voltage Regulators 76-22-4 Liquid to Water Coolers76-10 Audible Sound 76-22-5 Pumps76-4 Lightning Impulse 76-22-6 Fans76-5 Short Circuit 76-22-7 Accessories & Fittings76-11 Dry Types 76-57-1202 Phase Shifters76-16 Wind Power MT 2014 Tap ChangersWG 3362984 Suppression Devices of DC Magnetic Bias
IEEE Transformers Committee 032116 7
IEC TC 14 Philip J Hopkinson, PE & TA
Stability Dates
IEEE Transformers Committee 032116 8
IEC TC 14 Philip J Hopkinson, PE & TA
Come to my meeting at 7:00 AM Wednesday, March 23 in Room Atlanta 1,2,&3!
Better yet, Join the TAG!
IEEE Transformers Committee 032116 9