class ii transformer 250va, 500va, 1000va, 1400va (4 x …€¦ · 5 technical data 18 6 repair...
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This document is protected by Copyright. The design of any article recorded in this document is protected by design right and the information contained in the document is confidential. The document may not be copied. Any design may not be reproduced and the information contained in the document may not be used or disclosed except with the prior written permission of and in the manner permitted by the proprietors, FT Transformers LTD
CLASS II TRANSFORMER
250VA, 500VA, 1000VA,
1400VA (4 X OUTPUT),2000VA & 3000VA
OPERATION & MAINTENANCE MANUAL
Document Number: FT-O&M-DOC-05765 Revision. Version: 0.6
Release Status: FINAL
Date: 16/07/2013
Name Job Title Signature Date
Author R Bradley General Manager
Copy Number:
This document is controlled by FT Transformers. Any paper copy of this document must be assumed to be
uncontrolled.
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6 DATE: 16/07/2013
Page 2 of 28
CHANGE HISTORY
Revision Author Date Release
Status
ECO
Reference
01 R Bradley DRAFT
02 R Bradley DRAFT
03 R Bradley DRAFT
04 R Bradley FINAL
05 R Bradley FINAL
06 R Bradley 20/11/2013 FINAL
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6 DATE: 16/07/2013
Page 3 of 28
CONTENTS
Section Name Page
CHANGE HISTORY ............................................................................................. 2
CONTENTS 3
REFERENCED MATERIAL AND STANDARDS 4
ABBREVIATIONS 5
1 INTRODUCTION 6 1.1 Purpose .................................................................................................... 6 1.2 Audience .................................................................................................. 6 1.3 Product Description .................................................................................... 6 1.4 Product Operation ...................................................................................... 6 1.5 Contact Details .......................................................................................... 8 1.6 Comercial Conditions .................................................................................. 8
1.6.1 Warranty ........................................................................................... 8 1.6.2 Quality Assurance ............................................................................... 9
1.7 Asset Management .................................................................................... 9
2 SAFETY 10 2.1 General ................................................................................................... 10
2.1.1 Manual Handling ................................................................................ 10 2.1.2 Rules For Electrical Safety ................................................................... 10 2.1.3 Suitable Tools .................................................................................... 10
3 INSTALLATION AND COMMISSIONING 11 3.1.1 Delivery and Transportation ................................................................ 11 3.1.2 Installation ........................................................................................ 11 3.1.3 Cables and Cable Connection ............................................................... 13 3.1.4 Commissioning .................................................................................. 13 3.1.5 Voltage Adjustment ............................................................................ 14 3.1.6 Energisation Of Equipment .................................................................. 16
4 MAINTENANCE 17 4.1.1 Routine and Preventative Maintenance.................................................. 17 4.1.2 Recommended Spare Parts ................................................................. 17 4.1.3 Onsite Testing Procedure .................................................................... 17
4.2 Training and Competence .......................................................................... 17 4.3 Disposal .................................................................................................. 17
5 TECHNICAL DATA 18
6 REPAIR PROCEDURE 20
Appendix A – General Arrangement 21
Appendix B – Transformer Connection Plates 22
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6 DATE: 16/07/2013
Page 4 of 28
Referenced Material and Standards
The following source material was used: The following documents in italics to be revised for FT document numbers
Document / Standard Name
[1] NR/L2/SIG/300007, Product Specification for power Transformers for Signalling Systems
[2] FT Declaration of Conformity
[3] NR/L2/ELP/27410, Specification for Class II based Signalling Systems
[4] NR/L2/ELP/27409, Product Specification for Functional Supply points (FSP)
[5] NR/SP/ELP/27242, Specification of Low Voltage Electrical Installations on Railway Premises
[6] NR/SP/ELP/27243, Specification for Signalling Power Supplies
[7] NR/SP/ELP/27244, Guidance for Signalling Power Supplies
[8] NR/SP/ELP/27247, Guidance for Low Voltage Electrical Installations on Railway Premises
[9] NR/GN/ELP/27310, Management of Signalling Power Supplies
[10] GI/RT7017, Signalling & Safety Related Telecommunications Power Supplies and Circuits
[11] GI/GN7517, Guidance on Signalling and Safety Related Telecomms and Power Supplies and Circuits
[12] BS 7671, Requirements for Electrical Installations: IEE Wiring Regulations (17th Edition)
[13] BS EN 50122-1, Railway Applications – Fixed Installations
[14] BS EN 50272 - 2, Railway Applications – Fixed Installations
[15] BS EN 60664-1, Insulation Coordination for Equipment Within Low-voltage Systems - Part 1
[16] BS EN 61180-1, High-voltage TestTechniques for low-voltage equipment - Part 1
[17] SAM1290, Impulse Test of A 700V transformer To British Standard BS EN 50124
[18] BR SM 440 – Apparatus Case Rack layouts
[19] EaWR, Electricity at Work Regulations 1989
Websites www.ft-transformers.co.uk www.networkrail.co.uk www.hse.gov.uk
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6 DATE: 16/07/2013
Page 5 of 28
Abbreviations
AC Alternating Current
CPC Circuit Protective Conductor
CSA Cross Sectional Area
DC Direct Current
DNO Distribution Network Operator
E&P Electrification and Plant
EaWR Electricity at Work Regulations
FLC Full Load Current
FSP Functional Supply Point
GRIP Guide to Railway Investment Projects
IEEE Institute of Electrical & Electronics Engineers
LSF Low Smoke and Fume
LSZH Low Smoke Zero Halogen
MET Main Earth Terminal
N.I.C.E.I.C National Inspection Council for Electrical Installation Contracting
NR Network Rail
O&M Operation and Maintenance
PF Power Factor
PSP Principle Supply Point
PVC Polyvinyl Chloride
REB Relocatable Equipment Building
SWA Steel Wire Armoured
THD Total Harmonic Distortion
TP&N Three Phase and Neutral
VA Volt-Amps (Unit for Apparent Power)
XLPE Cross-Linked Polyethylene
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6 DATE: 16/07/2013
Page 6 of 28
1 INTRODUCTION
1.1 Purpose
This Operation and Maintenance manual is for the Class II Hybrid Functional Supply Point (FSP) transformers in the range:
• 250VA
• 500VA
• 1000VA
• 1400VA (4x output)
• 2000VA
• 3000VA
These are to be used within Class II Signalling Power Distribution Systems in line with NR/L2/ELP/27410, Specification for Class II based Signalling Systems.
1.2 Audience
The intended audience for this operation and maintenance manual are all authorised and competent persons involved in, but not limited to, designers, installers, asset managers and maintainers.
1.3 Product Description
KEY FEATURES:
• Double Insulated primary side protection in-line with NR/L2/SIG/30007, Product Specification for power Transformers for Signalling Systems (note: 100VA units have double insulated primary and secondary).
• 4 No outputs at 350VA each (1400VA type only)
• Inrush equal to the full load current i.e. 1 x FLC
• Patented spray on covering technique for the FT coating to provide a further level of electrical and corrosive protection and future proof the unit.
• There is also a powder coat enclosure available
• Fits within the standard Rail apparatus (location) case, REB (Relocatable Equipment Building) and rack frame to BR-SM-440
• THIS PRODUCT IS A REPLACEMENT FOR LEGACY TRANSFORMERS TO
BR924A
• THIS PRODUCT CAN BE USED AS A CLASS I REPLACEMENT
• THIS PRODUCT IS NOT SUITABLE FOR USE IN TUNNELS
1.4 Product Operation
The transformers are designed and built to be supplied from a two wire 650VAC ( +/-10% ) supply at a nominal frequency of 50hZ ( +/-4 to 6% ).
The transformers are designed and built to supply 110V (+/- the accepted Network Rail tap settings) at a nominal frequency of 50hZ
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6 DATE: 16/07/2013
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Figure 1 – Class II transformer common details
Figure 2 – Transformer I.D. Badge
50364 XXXXXX
0-10-25-600-650-700 V 50 Hz 1 PH
F
4X 350VA 0-5-10-110-120-140 V
NR/L2/SIG/30007 Class II Hybrid
XXXXX / 1 2013
40kg
YEAR
INS CLASS
PADS No. DESIGN
INPUT
OUTPUT
SPEC
SERIAL No.
sales@ft-transformers.co.uk
FT TRANSFORMERS LIMITED TEL XXXXXXXXXXXXX www.ft.transformers.co.uk
2x Built in handles
4 x vent louvers
12x durable nylon bolts and washers
Warning Labels (Top and Front)
2 x holes cut out either side diameter
26MM for Primary cable connection
2 x holes cut out either side diameter
26MM for Secondary cable
connection
Mounting slots
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6 DATE: 16/07/2013
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Figure 3 – Warning Label
1.5 Contact Details
Address: FT Transformers Ltd
Unit 7 Cyclo Works,
Lifford Lane,
Kings Norton,
Birmingham,
B30 3DY
Telephone: +44 (0) 121 451 3204
Facsimile: +44 (0) 121 433 4577
Email: sales@ft-transformers.co.uk
1.6 Comercial Conditions
1.6.1 Warranty
DOUBLE
INSULATED
EQUIPMENT
INSIDE
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6 DATE: 16/07/2013
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We offer a standard warranty period of the equipment procured and supplied by FT Transformers 12 months from putting into service. However FT Transformers will not accept liability for any costs incurred by others. Extended warranty is available at extra cost subject to agreement.
1.6.2 Quality Assurance
All contracts employ the Company Quality Assurance System, which complies with the requirements of ISO9001 and has been independently assessed by Lloyd's Registered Quality Assurance
1.7 Asset Management
All units have a unique number which is completely traceable as required by BSI 9001. This number can be aide to any asset management system for a life log of the unit.
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6 DATE: 16/07/2013
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2 SAFETY
2.1 General
Personal protective equipment PPE shall be in-line with Network Rail and group standards. All persons are to make an assessment of the required level of PPE in-line with authorised site requirements.
The Nominate Competent person should do risk assessments and Method statement before any electrical installation is undertaken.
2.1.1 Manual Handling
The manual handling procedures in section 3.1.1 ‘Delivery and Transportation’ of this document should be followed together with ‘Manual Handling Operations Regulations 1992 (as amended)’.
2.1.2 Rules For Electrical Safety
The Low Voltage Directive - ‘Guidelines On The Application Of directive 2006/95/EC’, regards the voltage of the signalling power system as ‘low’ but ‘SUFFICIENT TO KILL’.
Assume all equipment is live until proven dead
The rules of electrical isolation within BS7671 and best practise should be adhered to through out by ‘Authorised Nominate Competent’ persons.
Network Rail Safety Procedures should be followed throughout for permissions required for isolation and safe disconntection of signalling supplies.
If required the appropriate Warning and /or Danger notices must be displayed
2.1.3 Suitable Tools
All tools including personal tools must be suitable for the operation for which they are being used and must be in good condition.
• Spanner for M6 hex bolt
• Philips screw driver
• Flathead screw driver
Figure 4 – Example tools
or + +
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6 DATE: 16/07/2013
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3 INSTALLATION AND COMMISSIONING
Although outside the scope of this manual, electrical Inspection and testing must be in accordance with BS 7671 17th edition “Requirements for Electrical Installations” and Guidance Note 3, and in accordance with N.I.C.E.I.C testing guidelines / standards.
3.1.1 Delivery and Transportation
The transformer(s) will arrive at the arranged delivery address intact. If there is damage to the transformers of any kind please contact FT Transformers Ltd.
When delivering to the final site installation the transformer(s) should be fixed securely within the vehicle for transportation. It is advised that the transformer(s) and GLS-100 R coating be inspected before installation.
During on loading and offloading it is advised that two or more competent person manually lift the transformer in place. Note the Health and Safety Executive Manual Handling Charts (MAC) assessment is attached in Appendix B for reference and can be used to aid any manual handling risk assessment. However, this does not invalidate competent person(s) from their responsibilities. The Manual Handling Operations Regulations 1992 (as amended) shall be adhered to in this regard. FT transformers advise the use of a mechanical lifting aid such as a stacker for weights 40kg and below as shown in figure 5
3.1.2 Installation
Before installation commences the installer must carry out a risk assessment. The mounting rails, brackets or other such arrangement must be assessed for its capability of bearing the transformer weight.
It is advised that the transformer be mounted at the lower portion of any cubicle or rack to reduce the risk of stress on any such cubicle or rack.
Although the FT-100 R coating is extremely durable, care must be taken not to scratch it. If damage does arise, please see Section 7 Repair Procedure for FT-100 R
The transformer must be mounted in the orientation shown in figure 3 below with the fixing holes to the bottom. The transformer must be securely fixed to the mounting rails, brackets or other such arrangement capable of bearing the transformer load. The Plastic nuts and bolts supplied must be used ONLY. If these are lost, please contact FT Transformers and arrangements will be made to supply replacements. Otherwise, plastic nuts and bolts can be readily obtained from the standard electrical wholesalers.
To gain access to the cable connection plate the method followed in figures 6 & 7 should be followed.
1
2
3
Figure 5 – Use of a Stacker
Once the stacker is in position and the appropriate adjustment made to the tray height (1) the transformer(s) can be slid (3) off the tray and into a maintenance vehicle or trailer (2) for removal/ transport to site.
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6 DATE: 16/07/2013
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Figure 3 - Mounting in Place
Figure 6 – Tightening mounting bolts and removing cable faceplate
1 1
2 2
3 3
1
2
2 2 2
Rack or other load bearing structure for
transformer fixing
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6 DATE: 16/07/2013
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Figure 7 –Cable connection faceplate
3.1.3 Cables and Cable Connection
All cabling should meet the requirements of NR/L2/ELP/27410. For connection faceplate see Appendix B
POWER CABLES
Only Class II enhanced cable shall be used on the 650V primary side of the transformer as part of a Class II signalling power distribution system and required by NR/L2/ELP/27410.
NOTE: CABLES MUST NOT BE SWA!
The signalling power distribution cable is connected to the transformer with terminal blocks, which are designed to accept a cable size between 0.5-mm.
The supply is connected to the transformer with KS terminal Blocks which are touch proof and designed to accept a cable size between 0.5-2.5mm.
110V cables on the secondary side shall be the standards signalling cable and/or PVC cable as required by the installation scheme.
EARTH CABLES
All earthing and bonding on the transformer to any such, installation, which it is fixed, shall comply with BS 50122-1, BS 7430 and BS 7671: The requirements for Electrical Installations.
The functional earth terminal block which are designed to accept a cable size of between 0.5-10mm
3.1.4 Commissioning
Before electrical energisation takes place, make sure that all ventilation louvers are clear of any obstruction.
Cable connection plate (note the
example shown is for the 1400VA
multi-output unit
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6 DATE: 16/07/2013
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NOTE: ONLY PARALLEL OUTPUTS 1&2 TOGETHER AND OUTPUTS 3&4 TOGETHER.
DO NOT PARALLEL ALL FOUR OUTPUTS TOGETHER!
Visually check that the coating is undamaged. If the coating is damaged on the outside but is undamaged internally the transformer is good for use. No maintenance is required and there is no need to change the transformer under these circumstances. See Repair Procedure
3.1.5 Voltage Adjustment
The transformer terminals should be set to the nominal voltage T0/650v and t0/t110v
Under load conditions, monitor the input voltages for a few minutes and obtain an average value.
Disconnect the incoming supply and use the table below to set the primary taps
Input voltages obtainable associated tap setting
Output voltages obtainable and ossociated tap setting ( 650v primary nominal )
Voltage In Primary Taps Secondary Taps Voltage Out
575v T25 T600 t10 t110 100V
590v T10 T600 t5 t110 105V
600v T0 T600 t0 t110 110V
625v T25 T650 t10 t120 110V
640v T10 T650 t5 t120 115V
650v T0 T650 t0 t120 120V
675v T25 T700 t10 t140 130V
690v T10 T700 t5 t140 135V
700v T0 T700 t0 t140 140V
Under load, monitor the output voltages and adjust the output taps to obtain approx 108-112 volts
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6 DATE: 16/07/2013
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Figure 8a - Transformer Wiring Schematic with voltage taps
T0 t5 t10
t110 t120
T10
T600 T650 T700
Output Ratings:
250VA, 500VA,
1000VA, 2000VA, 3000VA
T25
t140
t0
FUNCTIONAL EARTH
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6 DATE: 16/07/2013
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Figure 8b - Transformer Wiring Schematic with voltage taps for 1.4kVA
3.1.6 Energisation Of Equipment
Wherever possible electrical equipment should not be connected to or energised until all work on that equipment and associated circuits is complete. The first energisation of LV electrical equipment will be authorised by the Authorised Nominated Competant Person.
Once the electrical supply to LV electrical equipment has been made Live a Danger Live notice, must be attached to the LV electrical equipment to prevent interference where danger may arise. This notice should remain in place until all envisaged installation, extension or modification work on the LV electrical equipment or systems, which the LV electrical equipment forms a part of, is complete.
Organisational Policies and procedures should be adhered to.
T0
t5
t10
t110 t120
T10
T600 T650 T700
O/P 1 = 350VA
T25
t140
t0
FUNCTIONAL EARTH
t5
t10
t110 t120
O/P 2 = 350VA
t140
t0
t5
t10
t110 t120
O/P 3 = 350VA
t140
t0
t5
t10
t110 t120
O/P 4 = 350VA
t140
t0
NOTE: ONLY PARALLEL OUTPUTS
1&2 TOGETHER AND OUTPUTS 3&4
TOGETHER.
DO NOT PARALLEL ALL FOUR
OUTPUTS TOGETHER!
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6 DATE: 16/07/2013
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4 MAINTENANCE
Ensure that all ventilation louvers are clear.
The maintenance schedule is set by Network Rail under its maintenance scheduling procedures and control of asset register information ( NR/SP/SIG/10661 ) Signalling Maintenance Task Intervals
A Class II Hybrid transformer must only be replaced with a Class II Hybrid or fully Class II transformer of equal specification. NEVER replace a Class II Hybrid transformer with a Class I transformer.
Each transformers is provided with a unique I.D. located on the transformer label, this should be quoted when the unit is examined for maintenance.
4.1.1 Routine and Preventative Maintenance
FT Transformers advise that routine maintenance be carried so as not to shorten the life expectancy of the transformers. This may also include preventative maintenance as part of the asset management.
4.1.2 Recommended Spare Parts
No spare parts are required for these transformers
4.1.3 Onsite Testing Procedure
1. Disconnect the incoming supply and secondary connections.
2. Using a 500v megger check insulation resistance ( primary to functional earth )
3. ( Secondary to Functional Earth ) ( Primary to Secondary ) All values to be greater than 100M ohms.
4. Check Input and Output winding resistances with the values on data sheet at the rear of this manual.
5. Reconnect the incoming supply to Primary Terminals.
6. Check the incoming supply voltage, adjust primary taps if required using the table in 3.1.5.
7. Check secondary voltages, voltages should be within 10% of the terminal voltage.
8. Reconnect the secondary and check the load current
9. The load current should not exceed the values shown on the data sheets
10. Check output tap voltages, voltages should be within 2% of the terminal voltage, adjust output taps if required.
4.2 Training and Competence
All works involving the installation, commissioning, testing, and routine maintenance shall be carried out by persons competent, trained and authorised to do so to Network Rail, Group and British Standards.
4.3 Disposal
Equipment may be returned to FT Transformers Ltd or a waste disposal organisation certified but not to limited to the WEE Directive 2002/96/EG
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
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5 TECHNICAL DATA
RATING CONTINUOUS 250VA 500VA 1000VA 1400VA 2000VA 3000VA
IMTERMITENT RATING 15MINS IN EACH HOUR 300VA 600VA 1200VA 1680VA 2400VA
3600VA
DESIGN NUMBER/20KV PROTECTED ENCLOSURE
50361 50362 50363 50364 50365 50488
DESIGN NUMBER/ POWDER COAT ENCLOSURE
50583 50584 50585 50586 50587 50588
PRIMARY WINDING CLASSIFICATION
CLASS 11 CLASS 11 CLASS 11 CLASS 11 CLASS 11 CLASS 11
SECONDARY WINDING CLASSIFICATION
CLASS 1 CLASS 1 CLASS 1 CLASS 1 CLASS 1 CLASS 1
PRIMARY VOLTAGE 0-10-25-600-650-700V
0-10-25-600-650-700v
0-10-25-600-650-700v
0-10-25-600-650-700v
0-10-25-600-650-700v
0-10-25-600-650-700v
FREQUENCY (Hz) 50/60 50/60 50/60 50/60 50/60 50/60
3PH OR 1PH 1PH 1PH 1PH 1PH 1PH 1PH
INSULATION CLASS F F F F F F
RECOMMENDED PRIMARY FUSE PROTECTION
2A BS88 TYPE GG 690V RATED OR IEC 60269
2A BS88 TYPE GG 690V RATED OR IEC 60269
4A BS88 TYPE GG 690V RATED OR IEC 60269
6A BS88 TYPE GG 690V RATED OR IEC 60269
6A BS88 TYPE GG 690V RATED OR IEC 60269
6A BS88 TYPE GG 690V RATED OR IEC 60269
EFFICIENCY` 92% 94% 95.% 95.2% 95% 95%
PEAK INRUSH X FLC 3.1 1.5 1 1 1 1
PEAK INRUSH CURRENT 1.5A 1.15A 1.53A 2.15A 3.07A 4.10A
I^t OVER FIRST TWO CYCLES 40mS 0.09 0.05 0.09 0.18 0.38
0.67
IMPEDANCE (ALL SECONDARY’S SHORT CIRCUIT) MEASURED VALUE AT 20°C
2.43% 2.12% 2.88% 2.63% 3.43%
4.62%
IMPEDANCE MAX 5% MAX 5% MAX 5% MAX 5% MAX 5% MAX 5%
SECONDARY VOLTAGE
0-5-10-110-120-140
0-5-10-110-120-140
0-5-10- 110-120-140
4 X 0-5-10-110-120-140
0-5-10-110-120-140
0-5-10- 110-120-140
RATING AT EACH TERMINAL OUTPUT
250VA 500VA 1000VA 4 x @ 350VA EACH
2000VA 3000VA
DURATION OF PROSPECTIVE FAULT CURRENT FOR EACH SEC
1 SEC 1 SEC 1 SEC 1 SEC 1 SEC 1 SEC
PROSPECTIVE FAULT CURRENT ON SECONDARY (one winding short circuit)
77.57A 185.53A 286.78A 98.2A 486.14A
590A
REGULATION FROM NO LOAD AT FULL RATING OF TRANSFORMER
2.9% 2.2% 2.85% 2.8% 3.3%
4.10%
INSULATION RESISTANCE @ 500VDC. BOTH WINDINGS TO CORE
>51G OHMS
>51G OHMS
>51G OHMS
>51G OHMS
>51G OHMS
>51G OHMS
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
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INSULATION RESISTANCE @ 500VDC. WINDING TO WINDING
>51G OHMS
>51G OHMS
>51G OHMS
>51G OHMS
>51G OHMS
>51G OHMS
DIELECTRIC STRENGTH PRIMARY TO CORE
5.2kV 5.2kV 5.2kV 5.2kV 5.2kV
5.2kV
DIELECTRIC STRENGTH SECONDARY TO CORE
2.8kV 2.8kV 2.8kV 2.8kV 2.8kV
2.8kV
DIELECTRIC STRENGTH PRIMARY TO SECONDARY
5.2kV 5.2kV 5.2kV 5.2kV 5.2kV
5.2kV
IMPULSE WITSTAND PRIMARY WINDING
8kV 8kV 8kV 8kV 8kV
8kV
WINDING INDUCTANCE @ 650V
35mH 30.0mH 19mH *16.0mH 12.3mH
9.54mH
WINDING INDUCTANCE @ 110V
1mH 0.86mH 0.54mH *0.46mH 0.35mH
0.27mH
PRIMARY WINDING RESISTANCE @20 DEG C
18.50 ohms
9.00 ohms
7.70 ohms
5.70 ohms
4.80 ohms
5.77 ohms
SECONDARY WINDING RESISTANCE @20 DEG C
1.25 ohmS 0.45 ohms 0.26 ohms 0.62 ohms Each coil
0.10 ohms 0.07 ohms
X/R RATIO 0.35 0.73 0.71 0.77 0.80
0.52
OPERATIONAL TEMPERATURE RANGE
-20C TO 60C
-20C TO 60C
-20C TO 60C
-20C TO 60C
-20C TO 60C
-20C TO 60C
HUMIDITY UP TO 100% RH
UP TO 100% RH
UP TO 100% RH
UP TO 100% RH
UP TO 100% RH
UP TO 100% RH
PRIMARY TERMINALS
SCREW CLAMP 0.5mm TO 2.5mm
SCREW CLAMP 0.5mm TO 2.5mm
SCREW CLAMP 0.5mm TO 2.5mm
SCREW CLAMP 0.5mm TO 2.5mm
SCREW CLAMP 0.5mm TO 2.5mm
SCREW CLAMP 0.5mm TO 2.5mm
DIMENSIONS W x H x D 279 x 289 x 210
W x H x D 279 x 289 x 210
W x H x D 315 x 289 x 250
W x H x D 325 x 289 x 268
W x H x D 325 x 289 x 268
W x H x D 325 x 289 x 268
WEIGHT 20kG 35Kg 40Kg 40.3KG 50kg 60kg
* NOTE:
1400VA UNIT THE INDUCTANCE VALUES ARE WHEN ALL 4 WINDINGS ARE
SHORT CIRCUITED
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
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6 REPAIR PROCEDURE
A repair procedure is not required for the FT Class II transformers.
The transformer housing has been flash tested to 10kV on the inside and outside, a total of 20kV. Therefore integrity is maintained even if there is damage to one side of the housing. It does need to be replaced in this instance.
If there is damage internal and exernally to the housing then the transformer must be sent back to FT transformer Ltd for reconditioning or replacement.
The transformer must only be replaced with a Class II hybrid or better transformer
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
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Appendix A – General Arrangement
TO ACCESS PLATE
WARNING LABEL FIXED
BOLTS
8 x M6 NYLON
TO ACCESS PLATE
I.D. LABEL FIXEDHOUSING LID
A
13
DC
289
J
12
E
I
GH F
LK
OP
EQUIPMENT INSIDE
DOUBLE INSULATED
EQUIPMENT INSIDE
DOUBLE INSULATED
T700
T650
T600
T25
T10
T0
t5
t0
t10
t110
t120
t140
250VA, 500VA, 1000VA, 2000VA,
OUTPUT RATINGS:
FUNCTIONAL EARTH
T700
T650
T600
T25
T10
T0
t5
t0
t10
t110
t120
t140
FUNCTIONAL EARTH
WDG 4 = 350VA
t5
t0
t10
t110
t120
t140
WDG 3 = 350VA
t5
t0
t10
t110
t120
t140
WDG 2 = 350VA
t5
t0
t10
t110
t120
t140
WDG 1 = 350VA
OUTPUT RATING 1400VA
EQUIPMENT
INSULATED
DOUBLE
WARNING
CLASS II EQUIPMENT
REPLACE EXISTING OR FAULTY
EQUIPMENT SHALL BE USED TO
ONLY APPROVED CLASS II650 VOLTS
DANGER
EQUIPMENT
HEAVY
WARNING
USE
MANUAL BEFORE
APPLICATION
REFER TO
BEFORE OPENING
ISOLATE 650V SUPPLY ELSEWHERE
www.ft-transformers.co.uk
TEL +44 XXXX XXX XXXX
FT TRANSFORMERS LIMITED
DESIGN
INPUT
OUTPUT
SPEC
SERIAL No.
50364
0-10-25-600-650-700 V
0-5-10-110-120-140 V
NR/L2/SIG/30007
XXXXX / 1
PADS No.
1 PH
4X 350 VA
50 Hz
kg
XXXXXX
F
YEAR
INS CLASS
2013
EQUIPMENT
INSULATED
DOUBLE
WARNING
CLASS II EQUIPMENT
REPLACE EXISTING OR FAULTY
EQUIPMENT SHALL BE USED TO
ONLY APPROVED CLASS II650 VOLTS
DANGER
EQUIPMENT
HEAVY
WARNING
USE
MANUAL BEFORE
APPLICATION
REFER TO
BEFORE OPENING
ISOLATE 650V SUPPLY ELSEWHERE
Legend/Notes
Signed
Signed
Designed DateSigned
Drawn
Checked
Approved
Date
Date
Date
Alternative Reference
Drawing Number Revision
of
Sheet
Drawing Title
Contractor(s)
Scale(s) ELR & Mileage
Project
Rev Date Description of Revisions Drawn Chkd Appr
Status
Signed
Dra
win
g N
um
ber
Sheet Size A2 420 x 594
A B C D E F G H I J K L M N O P
279
315
210 100 203 283 165 112 187 204
250 138 240 282 140 123 230 210
181
217
55 46 35 15 41 19
325 268 138 257 287 140 129 235 210 217
52 70 34 22 30 28
57 70 32 20 30 30
RATING
250VA & 500VA
1000VA
1400VA & 2000VA
TRANSFORMER MEASUREMENTS
NOT TO BE USED IN TUNNELS
FOR BR924A TRANSFORMERS
THIS PRODUCT IS A DIRECT REPLACEMENT
RANGE DETAILS
CLASS II HYBRID TRANSFORMER
.
Designed Name
Drawn Name
Checked Name
Approved Name
NTS .
Drawing No.
FT-DRG-CL2-05765 1 1
Rev
Date
Date
Date
Date
Rev Date Revision Description Drn Chk
Status
Designed Name
Drawn Name
Checked Name
Approved Name
App
L
M
N
B
O/P
O/P
O/P
O/P
ONLY PARALLEL OUTPUT 1&2
AND OUTPUT 3&4 DO NOT
PARALLEL ALL FOUR OUTPUTS
,
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6
DATE: 16/07/2013
Page 22 of 28
Appendix B – Transformer Connection Plates
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6
DATE: 16/07/2013
This document is protected by Copyright. The design of any article recorded in this document is protected by design right and the information contained in the document is confidential. The document may not be copied. Any design may not
be reproduced and the information contained in the document may not be used or disclosed except with the prior written permission of and in the manner permitted by the proprietors, FT Transformers LTD
250VA
FUNCTIONAL EARTH
Class II protective cover – primary
connection
t0
t5V
t10V
t110V
t120V
t140V
ISOLATE 650V
ISOLATE 650V
T0
T10V
T25V
T0
T10V
T25V
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6
DATE: 16/07/2013
This document is protected by Copyright. The design of any article recorded in this document is protected by design right and the information contained in the document is confidential. The document may not be copied. Any design may not
be reproduced and the information contained in the document may not be used or disclosed except with the prior written permission of and in the manner permitted by the proprietors, FT Transformers LTD
500VA
FUNCTIONAL EARTH
Class II protective cover – primary
connection
t0
t5V
t10V
t110V
t120V
t140V
ISOLATE 650V
ISOLATE 650V
T0
T10V
T25V
T0
T10V
T25V
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6
DATE: 16/07/2013
Page 25 of 28
1kVA
FUNCTIONAL EARTH
Class II protective cover – primary
connection
t0
t5V
t10V
t110V
t120V
t140V
ISOLATE 650V
ISOLATE 650V
T0
T10V
T25V
T0
T10V
T25V
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6
DATE: 16/07/2013
Page 26 of 28
1.4kVA
FUNCTIONAL EARTH
Class II protective cover – primary
connection
t0
t5V
t10V
t110V
t120V
t140V
t0
t5V
t10V
t110V
t120V
t140V
t0
t5V
t10V
t110V
t120V
t140V
Secondary connection x 4
Primary supply cable tie
T6
00
T6
50
V
T7
00
V
t0
t5V
t10V
t110V
t120V
t140V
T0
T1
0V
T2
5V
ISOLATE 650V ISOLATE 650V
ONLY PARALLEL OUTPUT 1&2 AND OUTPUT 3&4 DO NOT PARALLEL ALL FOUR OUTPUTS
O/P
2 3
50V
A
O/P
1 3
50V
A
O/P
2 3
50V
A
O/P
1 3
50V
A
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6
DATE: 16/07/2013
Page 27 of 28
2kVA
FUNCTIONAL EARTH
Class II protective cover – primary
connection
t0
t5V
t10V
t110V
t120V
t140V
ISOLATE 650V
ISOLATE 650V
T0
T10V
T25V
T0
T10V
T25V
CLASS II TRANSFORMER OPERATION & MAINTENANCE MANUAL NO: FT-O&M-DOC-05765
REVISION.VERSION: 0.6
DATE: 16/07/2013
Page 28 of 28
3kVA
FUNCTIONAL EARTH
Class II protective cover – primary
connection
t0
t5V
t10V
t110V
t120V
t140V
ISOLATE 650V
ISOLATE 650V
T0
T10V
T25V
T0
T10V
T25V
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