1 brookhaven science associates electrical thomas c. nehring, p.e. lead electrical engineer cfac...

1 BROOKHAVEN SCIENCE ASSOCIATES

Electrical

Thomas C. Nehring, P.E.Lead Electrical Engineer

CFAC Review November 9-10, 2009


Outline

• Ring Building - Electrical• Construction Progress• Pre-Purchased Unit Substations - Fabrication and Delivery• Torcon’s Required Delivery Dates

• Substation Expansion• 69 kV to 13.8 kV Substations Expansion Overview & Progress• Pre-Purchased Equipment - Fabrication and Delivery

– 15kV Switchgear– 20MVA Transformer– 69kV Circuit Breaker

• Concerns• Conclusions


Ring Building – Electrical

• Hinck Electrical• Constructing the underground ductbanks• Ductbank ~20% Complete



• G L Seamen Electric• Installing the below grade grounding

system for building ~40% complete(Grounding has to keep pace with the concrete foundation placements)

• Temporary construction power(Started – power to site from northern source installed)

• Miscellaneous convenience power & light(Started in tunnel areas)


Ring Building – Pre-Purchased Equipment

• Receiving of Unit Substations• Outdoor equipment will be placed on

substation slabs that are completed• Balance of Outdoor Equipment that can’t

be installed at the substation location will be stored in a secured/fenced area

• Indoor equipment will be stored in B-974 until their areas are enclosed from the weather elements


Ring Building – Pre-Purchased Equipment

• Torcon Required Delivery DatesSubstation Early Date Late Date Planned Delivery Date

Substation 1 7/10/10 8/10/10 1/15/10

Substation 2 4/10/10 9/10/10 1/15/10

Substation 3 5/11/10 6/10/10 1/15/10

Substation 4 6/2/10 7/10/10 1/15/10

Substation 5 6/10/10 7/29/10 1/15/10

Substation LB 4/10/10 9/10/10 1/15/10

Substation RF1 7/10/10 8/10/10 1/15/10

Substation RF2 7/2/10 8/10/10 1/15/10

Equipment to be inspected prior to delivery during the months of November and December


69 -13.8 kV Substation Expansion

• Scope (WBS 1.05.03.03)• 69kV Circuit Breaker• 20MVA 69-13.8kV Transformer• 15kV Switchgear• 15kV Feeder and Ductbank• Modifications to Building 603

• Cost• Contract Amount = $1.18M• Pre-Bid Estimate = $1.68M



• Schedule Completion

• 15kV Ductbank 12/31/09• 15kV Switchgear 03/31/10• 15kV Feeder 04/30/10• 20MVA 69-13.8kV Transformer 09/30/10• 69kV Circuit Breaker 10/31/10• Testing 11/30/10• Modifications to Building 603 12/31/10



• Contractor Progress• Mobilized• HASP submitted and approved• PHA’s completed and approved as needed• Digging permit for outside substation in place • Manholes placed 10/30/09• Ductbank Construction started


Substation Pre-Purchased Equipment

• 15kV Switchgear• Fabrication Complete and Inspected• Received 10/28/09 (2 months early)• Being stored in Building 820 (north highbay)

until Contractor (Bana Electric) is ready to start work inside Building 603.


15kV Switchgear


15 kV Switchgear



• 20MVA Transformer• Fabrication has started• Expected Delivery - April 2010 (3 months early)• Construction of transformer foundation to be

coordinated with transformer delivery• Contractor is planning to off-load

transformer directly to it’s foundation• Rigger is already starting to gather the

necessary information for critical lift permit



• 69kV circuit breaker• Shop Drawings are approved • Fabrication to start soon• Expected Delivery - Early 2010• Breaker to be stored in a fenced area

until the 69kV tower can be de-energized in the fall.


69 kV Gas Insulated Circuit Breaker


Concerns

• Storage of indoor pre-purchased equipment• Will be received early• Indoor Storage Space is available in C-AD complex, B-974

• Work in 69 kV yard• Needs to be coordinated around the Lab’s operating schedule• Needs to be coordinated around LIPA’s summer demands• Needs to be able to de-energize a portion of the 69 kV bus• Construction schedule extended to incorporate summer/fall of

2010 to allow for coordination with site operating schedules


Conclusions

• Electrical work at Ring Bldg progressing well• Hinck & GL Seaman have good reputation at BNL

• Electrical procurements are ahead of schedule• Delivery dates for unit substations support Torcon schedule• Delivery dates for substation equipment support Bana schedule

• Substation construction looks like it will proceed in a timely fashion• Power should be available to construction site ~May 2010• Bana’s schedule shows construction to be completed early

(~December 2010)

1 brookhaven science associates electrical thomas c. nehring, p.e. lead electrical engineer cfac...

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