ATL Transformers T2914 User manual

O&M MANUAL
Class I PSP/ASP Transformer 3ph 400/650V
Lightweight Aluminium Range
English
Francais
atl
TRANSFORMERS
Copyright © ATL Transformers Ltd 2019 Doc Ref TECH148 Issue 1

2Copyright © ATL Transformers Ltd 2019Doc Ref TECH148 Issue 12
CONTENTS
1.
2.
3.
4.
1.1 SAFETY NOTES...................................................................................................... 4
3.1 MOUNTING WITHIN APPARATUS HOUSING..................................................... 8
2.1 KEY PSP/ASP ECO-RAIL® FEATURES .................................................................. 6
4.1 ROUTINE MAINTENANCE.................................................................................. 10
3.3 VOLTAGE ADJUSTMENT ...................................................................................... 9
4.3 MAINTENANCE AFTER FLOODING ................................................................... 11
1.2 PURPOSE............................................................................................................... 5
3.2 CABLE CONNECTION........................................................................................... 9
2.2 PRODUCT OPERATION........................................................................................ 7
4.2 TESTING IN SERVICE .......................................................................................... 10
4.4 SPARE PARTS ...................................................................................................... 11
INTRODUCTION
PRODUCT INSTALLATION
PRODUCT DESCRIPTION
PRODUCT MAINTENANCE
5.
TRAINING & COMPETENCE ..................................................................................... 11
TRAINING & COMPETENCE
6.
6.1 DATA SHEET REFERENCE .................................................................................. 10
6.3 DECLRATION OF CONFORMITY........................................................................ 12
6.2 NR COMPONENT APPROVALS.......................................................................... 11
PRODUCT MAINTENANCE
7.
MANUFACTURER CONTACTS.................................................................................. 12
MANUFACTURER CONTACTS
1.3 GUARANTEE.......................................................................................................... 5

Copyright © ATL Transformers Ltd 2019 Doc Ref TECH148 Issue 1 3
ECORAIL® PSP/ASP TRANSFORMER RANGE................................................... 15-16
8.
REGULATORY REQUIREMENTS.............................................................................. 13
REGULATORY REQUIREMENTS
CONTENTS
9.
FREQUENTLY ASKED QUESTIONS .................................................................... 14-15
FREQUENTLY ASKED QUESTIONS
10.
PRODUCT WARRANTY ............................................................................................. 15
PRODUCT WARRANTY
11.
END OF LIFE DISPOSAL............................................................................................ 15
END OF LIFE DISPOSAL
12. ECORAIL® PSP/ASP TRANSFORMER RANGE
APENDIX B: LABEL DETAILS .................................................................................... 18
APENDIX A: GA DRAWING ....................................................................................... 17
APENDIX C: WIRING DIAGRAMS ............................................................................ 19
Version Implemented
By
Revision
Date
Approved
By
Approval
Date Reason
1 N.D.H. 24/04/17 B.M. 24/04/17 O&M Manual Creation

4Copyright © ATL Transformers Ltd 2019Doc Ref TECH148 Issue 1
1. INTRODUCTION
SAFETY PRECAUTIONS
GENERAL
The need for Personal Protection Equipment (PPE) must be as-
sessed prior to undertaking installation or maintenance
operations.
HEAVY
EQUPMENT
All manual handling must be in accordance with the Manual
Handling Operations Regulation 1992
LETHAL VOLTAGES
Electrical power within this system/equipment is at a level
considered, by the low voltage directive 73/23/EEC, to be
sucient to kill.
Always assume conductors are live until proved dead.
Before attempting any maintenance task, ensure that equipment
is isolated from electrical supply.
When the electrical supply cannot be isolated,
testing/maintenance tasks are to be undertaken only by
personnel who are aware of the dangers involved and after all
necessary precautions have been taken.
WORKING PRACTICES
Unauthorized interruption of the system may endanger the safe
operation of the railway. Before attempting any maintenance on
the equipment, obtain the necessary permission from the rele-
vant authority. Ensure the consequence of any interruption has
been fully considered and understood.
If a component or equipment becomes overheated or burnt, a
toxic fume hazard may exist. Isolate the power to the
equipment, ventilate the area and allow the equipment time to
cool before carrying out repairs.
This equipment does not liberate any toxic or injurious gases
during normal operation.
When working on equipment, especially in the connes of a case,
do not wear metal rings, bracelets, watches, etc. These articles
can cause personal injury or damage to equipment by becoming
entangled in components or causing a short circuit.
1.1 SAFETY NOTES

Copyright © ATL Transformers Ltd 2019 Doc Ref TECH148 Issue 1 5
1.2 PURPOSE
This O&M Manual denes the operating & Installation guidelines for the ATL Transformers, 10
- 150KVA range of aluminium 400/650V PSP/ASP transformer ranges for use within a standard
Network Rail approved Principal Supply Point.
1.3 GUARANTEE
The function and safety of the equipment is only guaranteed if the warning and safety
instructions included in this manual are adhered to.
ATL Transformers Ltd is not liable for any personal injury or damage to property that occurs as a
result of the warning and manual being disregarded.
ATL Transformers Ltd does not accept any liability or warranty for damage due to the use of
non-approved spare parts and accessories.

6Copyright © ATL Transformers Ltd 2019Doc Ref TECH148 Issue 1
Secondary Class I Entry
Remove gland plate to for cable entry
for Class I Secondary Connections
2. PRODUCT DESCRIPTION
2.1 KEY PSP/ASP eco-rail® FEATURES
The enclosed transformer has an ingress protection level of IP32 and is suitable for indoor
Railway Installations. Primary & Secondary Class I terminals are segregated within separate
terminals on the transformer. The Transformer features a tap changer which allows quick and
simple tap selection.
Gland Plate
Enclosure
Lid
Tap Selector
Primary Class I Entry
Remove gland plate to for cable entry
for Class I Primary Connections
Enclosure
Side Plate
Enclosure
Front Plate
Mounting Feet

Copyright © ATL Transformers Ltd 2019 Doc Ref TECH148 Issue 1 7
2.2 PRODUCT OPERATION
Supplied as standard for Class I distribution systems this range of transformers are designed
to be fed from a nominal 50Hz supply voltage (+4% to -6%). Input and output cables are to be
routed through the gland plates provided with suitable conduit and glands, terminated above
the transformer Internally to the screw clamp terminals provided. Conduit should meet the
requirements of NR/L2/SIGELP/27410 Issue 2 & NR/L2/SIGELP/27421 & 27422.
●On class I models an earth terminal is provided and shall always be connected to the
protective earth network.
●Cable glands shall always be removed where hole proles for conduit are being made. Never
drill holes on transformer panels in situ as swarf can enter the enclosure and short circuit the
magnetics when energized.
●All cabling should meet the requirements of NR standards: NR/L2/SIGELP/27410 Issue 2 and
NR/L2/SIGELP/27421 & 27422

8Copyright © ATL Transformers Ltd 2019Doc Ref TECH148 Issue 1
DD
DE
Dimensioning
The transformers shown in general arrangement
drawings in Appendix A are designed to be securely
xed to a secure and level base. If Integrating within
switch panel ensure that the plinth bar work is capable
of bearing the weight of the transformer. Footprint and
xing points are summarised with the tables of Appendix
1.
Repercussions
Due diligence and care should be taken not to damage
any installed cable entry glands or couplings during the
installation process as this could compromise the safety
integrity of the unit. In the event that the paint nish
is damaged during installation a touch up pen is available
for aesthetics however paint is supplementary to the
base material and not critical to the units operational
integrity.
3.
Lifting
Safe lifting practices should be observed when handling
heavy transformers. These units can be lifted using a
forklift or pallet truck, ensure that the transformer is
secure before transporting. Please refer to weights in
Appendix A and consult the manufactuer’s forklift/pallet
truck manual before lifting.
2.
3. PRODUCT INSTALLATION
3.1 MOUNTING WITHIN APPARATUS HOUSING
A. Always ensure that there is 100mm clearance around the transformer taking care not
to obstruct or impede on the transformers cooling louvres.

Copyright © ATL Transformers Ltd 2019 Doc Ref TECH148 Issue 1 9
Primary & Secondary terminals are accessible within the enclosure by removal of the
transformer lid. Cables glands are provided either side of the enclosure for cable access and are
removeable for customization of gland and cable entry requirements.
●On class I models an earth terminal is provided and shall always be connected to the
protective earth network.
●Cable glands shall always be removed where hole proles for conduit are being made. Never
drill holes on transformer panels in situ as swarf can enter the enclosure and short circuit the
magnetics when energized.
●Cables should be installed correctly and not resting on top of the transformer core. Adequate
bend radius’s should be observed on the installed cables and all terminals checked for good
compression prior to energization.
●All cabling should meet the requirements of NR standards: NR/L2/SIGELP/27410 Issue 2 and
NR/L2/SIGELP/27421 & 27422
INPUT: Monitor the supply voltage with a calibrated DVM to check your distribution is within
tolerance +4%/-6%. Connect Supply cables to the provided Input Voltage terminals ensuring they
are routed through suitable conduit and secure before energizing the transformer.
OUTPUT: The output tap selector facilitates feeder Voltage adjustment, this can be used to reset,
reduce or boost output voltages according to your feeder requirements. Connect Output cables
to the provided terminals ensuring they are routed through suitable conduit and secure. Select
the required output voltage using the on-board tap selector and reinstate the transformer lid
before energizing the transformer.
3.2 CABLE CONNECTION
3.3 VOLTAGE SELECTION
0
(0) OFF
(6) +5%
(T682)
(5) +2.5%
(T666)
(7) +7.5%
(T699)
(2) -5%
(T617)
(3) -2.5%
(T634)
(1) -7.5%
(T601)
(4) 650V
On-Load Tap Selector
The Voltage Selector can be found on the front of the
enclosure at the top left, the tap selector automatically
turns on a 45° and can be turned a full 360° clockwise
or anti-clockwise with 8 dierent settings. The standard
output for 3ph PSP/ASP range is 650V.
1.
NOTE: - The on-load tap selector should not be used for isolation and that the
transformer should be isolated from the supply before removing covers.

10 Copyright © ATL Transformers Ltd 2019Doc Ref TECH148 Issue 1
1. Isolate incoming supply, when isolated remove transformer lid and disconnect Input supply
and Secondary Output connections.
2. Using a calibrated 500V d.c insulation resistance tester check insulation resistance. Primary to
body (Earth) Secondary to body (Earth) & Primary to Secondary.
3. Check incoming supply voltage at protection, If within tolerance Isolate supply at the
protection and connect Incoming supply cables onto the respective transformer terminals.
4. Using a DVM and with the transformer energised, safely check at the output terminals
secondary tap voltages are within 2% using the tap selector to cycle transformer taps
accordingly. Check Secondary tap voltages which should be within 2% of the terminal voltage.
5. Isolate Supply and when safe re-connect Secondary Output cables.
6. Energise the transformer and using a calibrated ammeter check the load current.
Relevant safety checks & testing should be conducted in addition to these checks & in line with
Network Rails controlled safety & inspection procedures prior to energizing the transformer.
4.2 TESTING IN SERVICE
These units are non serviceable and require observational maintenance only to their Terminals,
cables and enclosure panels which must be intact and installed as originally supplied.
Always ensure that there is 100mm clearance around the transformer taking care not to
obstruct or impede on the transformers cooling louvres.
Do not place any foreign bodies on top of the enclosure lid or inside the transformer housing.
This does not supersede any maintenance tasks or scheduling procedures network rail deem
necessary and set in accordance with. NR/SP/SIG/10661 Signalling Maintenance Task Intervals.
Each unit is provided with a serial number and part code reference. This Information is located
on the transformer rating plate and should be quoted at any Point where the unit is examined
and suspected to be compromised.
4. PRODUCT MAINTENANCE
4.1 ROUTINE MAINTENANCE

Copyright © ATL Transformers Ltd 2019 Doc Ref TECH148 Issue 1 11
Please see section 7 of this document for contact details.
4.4 SPARE PARTS
4.3 MAINTENANCE AFTER FLOODING
Please note that the transformer should be sent back to ATL Transformers if the transformer
has sustained ooding
Item Part Reference
TOUCH UP PAINT RS-PAINT-RAL7032-125ml
5. TRAINING & COMPETENCE
The transformers are to be installed within a Network Rail approved Structure by trained &
authorized Network Rail installers only.
All maintenance activities shall be undertaken by trained and authorized Network
Rail crews and/or contractors.
Refer to manufacturers Datasheets for required specication.
6. PRODUCT MAINTENANCE
6.1 DATA SHEET REFERENCE
6.2 NR COMPONENT APPROVALS
CUSTOMER
DECLARATION OF CONFORMITY
NETWORK RAIL
PRODUCT NAME ATL 400/650V
Signalling Power Transformers
ATL DATA SHEETS AVAILABLE ON REQUEST: DOC REF
NETWORK RAIL CERTIFICATE(S) PA05/07022

12 Copyright © ATL Transformers Ltd 2019Doc Ref TECH148 Issue 1
ATL Transformers claim conformity for this family of product(s) manufactured at our
Manchester facility. In accordance with the specications referenced below. This declaration is
based upon our technical le which contains data supporting our claims.
6.3 DECLARATION OF CONFORMITY
COMPLIANCE SPECIFICATION(S)
EC Directives 2006/95/EC Low Voltage Directive
Harmonized Standards IEC 60076 - Power Transformers
Internal Standards ISO 9001: 2015 BSI Audited Quality Assurance
Customer Standards/Specications BS EN 61558-1:2009 - Safety of power
transformers, power supplies, reactors and
similar products.
NR/L2/SIGELP/30007 Issue3 - Product Speci-
cation for Power Transformers for Signalling
Systems.
IEC 60076 – Power Transformers
BR 924A – Air Cooled Power Transformers for
Railway Signalling
This declaration is made by: Mr. Neville D Haide (Company Director)
ATL Transformers Ltd.
Hanson Close, Middleton, Manchester, Lancashire, UK, M24 2HD
Declaration by:
N. Haide
Date 25/03/2015
ATL Transformers Ltd
Hanson Close
Hanson Street
Middleton
Manchester
Lancashire
UK
M24 2HD
Tel: [phone] Monday – Thurs 08:00 – 17:15 Friday 8:00 – 13:00
Web: www.atltransformers.co.uk
Email: [email protected]
7. MANUFACTURER CONTACTS

Copyright © ATL Transformers Ltd 2019 Doc Ref TECH148 Issue 1 13
8. REGULATORY REQUIREMENTS
APPLICABLE STANDARDS
BS EN 50122-1 – Railway Applications – Fixed Applications – Part 1 Protective Provisions
Relating to Electrical Safety & Earthing.
BS EN 50125-2 – Railway applications. Environmental conditions
for equipment. Fixed electrical installations.
BS EN 50125-3 – Railway applications. Environmental conditions for equipment. Equipment
for signalling and telecommunications.
BS EN 60529 – Degrees of protection provided by enclosures.
BS EN 62262 – Degrees of protection provided by enclosures for electrical equipment
against mechanical impacts (IK code).
BS EN 61558 – Safety of power transformers, power supplies, reactors and similar
products.
BS EN 62262 – Degrees of protection provided by enclosures for electrical equipment
against mechanical impacts (IK code).
NR/L1/ELP/27000 – Asset Management Policy for Electrical Power assets.
NR/L2/SIGELP/27408 – Product Specication for Signalling
Power Distribution Cables
NR/GN/ELP/27315 – Management of Power Supplies for Telecoms Equipment.
NR/L2/SIGELP/27410 Issue 2
NR/L2/SIGELP/27421 & 27422 - Flexible Conduits & Glands
NR/L2/SIGELP/27410 – Specication for Class II Based Signalling Power distribution
systems.
NR/L2/SIG/11201 – Signalling Design Handbook.
NR/L2/SIG/30050 - Functional Signalling Power Circuits.
NR/L3/SIG/10663 – Signal Maintenance Specications.
NR/SP/SIG/11221 – Signalling Works Testing.
NR/SP/SIG/11231 – Signalling Maintenance Testing Handbook.
NR/L2/ELP/21120 – E & P Records Management Process.

1) What tools are required to access the Transformer for
termination?
WARNING
Ensure supply is Isolated before removing the Lid or Gland Plates.
Ensure that the Gland Plates and Lid are bolted back on before exerting
power supply.
2) Where do I connect the cables?
3) How do I gain access to the dierent sections of the assembly?

14 Copyright © ATL Transformers Ltd 2019Doc Ref TECH148 Issue 1
●To access Terminals:
To access Terminals the bolts securing the enclosure lid/gland plates door must be
unscrewed using an M8-M10 spanner or Socket.
The terminals are located on top of the transformer on the angled brackets and are labelled
accordingly to the wiring schematic in Appendix C.
If Ferrules are not being used cables should be stripped 10mm and secured into the
terminals. The recommended torque setting is between.
9. FREQUENTLY ASKED QUESTIONS
●The cables are connected on the terminals of the Primary, these are located on top of the
transformer inside the transformer, the same for the secondary terminals they’re located on
top of the transformer inside the enclosure.
NOTE: - All enclosure covers/plates must be replaced after terminating cables to
maintain protection.
All electrical termination is by at head terminal driver.
Cables are connected directly onto the terminals of the transformer, these are located
on top of the transformer inside the enclosure and are clearly marked.
●This unit is designed to oer access to terminals only for installation purposes. The terminals
are accessible via removing the lid or the gland plates on either side of the enclosure.

5) Is there a start-up or switch on procedure?
●The assembly must be installed, commissioned & tested in accordance with NR Installation
handbook by qualied person/s before power is applied to any part of the system.
6) The assembly is damaged or not functioning correctly, who
shall I Contact for spare or replacement parts?
●Contact:
ATL Transformers Ltd - details are given in section 7 of this document.
4) What is the procedure for installing & connecting cables?
●All cables shall be installed in accordance with NR Installation handbook.
Copyright © ATL Transformers Ltd 2019 Doc Ref TECH148 Issue 1 15
These products are under ATL’s standard warranty which is 12 months. Product warranty
document is available upon request.
10. PRODUCT WARRANTY
All Electrical equipment must be disposed of in accordance with the Wee Directive 2002/96/EG.
End of life or completed equipment may be returned to ATL Transformers for Disposal or
alternatively must be issued to a certied waste disposal vendor.
11. END OF LIFE DISPOSAL
12. ECO-RAIL® PSP/ASP TRANSFORMER RANGE
●Table-12.1 400/650V 3ph Lightweight Transformer Product Range
Part No. Description Catalogue No.
T2914 CLASS I ASP/PSP LIGHTWEIGHT TRANSFORMER 10,000VA N/A
T2961 CLASS I ASP/PSP LIGHTWEIGHT TRANSFORMER 20,000VA N/A
T3116 CLASS I ASP/PSP LIGHTWEIGHT TRANSFORMER 25,000VA N/A
T2915 CLASS I ASP/PSP LIGHTWEIGHT TRANSFORMER 30,000VA N/A
T2962 CLASS I ASP/PSP LIGHTWEIGHT TRANSFORMER 40,000VA N/A
T3058 CLASS I ASP/PSP LIGHTWEIGHT TRANSFORMER 50,000VA N/A

16 Copyright © ATL Transformers Ltd 2019Doc Ref TECH148 Issue 1
●Table-12.1 400/650V Lightweight Transformer Product Range Continued.
Part No. Description Catalogue No.
T2963 CLASS I ASP/PSP LIGHTWEIGHT TRANSFORMER 60,000VA N/A
T3027-1 CLASS I ASP/PSP LIGHTWEIGHT TRANSFORMER 80,000VA N/A
T3143 CLASS I ASP/PSP LIGHTWEIGHT TRANSFORMER 120,000VA N/A
T3032 CLASS I ASP/PSP LIGHTWEIGHT TRANSFORMER 150,000VA N/A

Copyright © ATL Transformers Ltd 2019 Doc Ref TECH148 Issue 1 17
Aluminium Wound PSP/ASP 400/650 Transformers
Model Dimension (mm) Weight (kg)
A B C D E Dia 400/650V
10KVA 760 500 1100 200 115 16 250
20KVA 760 500 1100 200 115 16 280
25KVA 760 500 1100 260 115 16 295
30KVA 760 500 1100 260 115 16 310
40KVA 760 500 1100 320 260 16 340
50KVA 920 500 1200 260 115 16 450
60KVA 920 500 1200 260 115 16 500
80KVA 920 500 1200 260 115 16 690
120KVA 920 500 1200 260 115 16 850
150KVA 920 500 1200 260 115 16 1450
APPENDICES A
GENERAL ARRANGEMENTS
A
C
B
A
Dia
D
E
On-Load tap
changer
140
100
120
80
M6 Hx/Hd Fasteners
DETAIL A
2x Removable Cable
Gland Entry Plates
DETAIL B
Tap Changer
SCALE
1 : 10
B

18 Copyright © ATL Transformers Ltd 2019Doc Ref TECH148 Issue 1
APPENDICES B
LABEL DETAILS
atl
TRANSFORMERS LTD
MANCHESTER M242HD TEL: [phone]
Duty
VA
Serial No
Input Voltage
Input Current
Output Voltage
Output Current
Manufactured to NR/L2/SIG/3007
PADS No
Ins Class
Frequency
Impedance
Weight
IP Rating
Efficiency
Date
Elec Spec
1000 100 %
xxxxx 01/04/2013
DATE INITIALS
TESTED
LABEL 1 LABEL 2 LABEL 3
LABEL 4 LABEL 5 LABEL 6
Label Description Location
1Electrical Specication Rating Plate Enclosure Front Plate
2 Danger 650V - Isolate Supply Enclosure Lid
3 Danger - Live Terminals Isolate Supply Transformer
4 On Load Output Voltage Tap Selector Enclosure Front Plate
5 CE Mark Enclosure Lid
6 Tested Label - Date & Initials Transformer

Copyright © ATL Transformers Ltd 2019 Doc Ref TECH148 Issue 1 19
Title Descritpion Diagram
DYnII
Delta Star
Aluminium
Aluminium DynII
Delta Star
3ph Step-Up Transformer
Generic Wiring Diagram
c b
A2
A3 A4
A5 A6 A7
A8
B2
B3 B4
B5 B6 B7
B8
C2
C3 C4
C5 C6 C7
C8
a
b
c
yn
a
B
C
yn
ac
b
22
2
2
2
A
2
Dd0
Delta Delta
Aluminium
Aluminium Dd0
Delta Delta
3ph Step-Up Transformer
Generic Wiring Diagram
A2
A3 A4
A5 A6 A7
A8
B2
B3 B4
B5 B6 B7
B8
C2
C3 C4
C5 C6 C7
C8
a
b
c
c
a
b
ac
b
2
22
C
A
B
AC
B
2
22
APPENDICES C
WIRING DIAGRAMS

20 Copyright © ATL Transformers Ltd 2019Doc Ref TECH148 Issue 1
ATL Transformers Ltd, Hanson Close, Middleton, Manchester M24 2HD
Tel.: [phone] ●Fax: [phone]
[email protected] ●www.atltransformers.co.uk
atl
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