MESP 040100-03 SIGNAL POWER SUPPLY TRANSFORMERS

1 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Engineering Specification Electrical Networks MESP 040100- 03 signal power supply transformers 3300/2200/110V AC 50Hz Version: 2 Issued: October 2016 Owner: Chief Engineer Approved By: Andrew Russack Head of Engineering - Electrical SIGNAL POWER SUPPLY TRANSFORMERS 3300/2200/110V AC 50HZ MESP 040100-03 Version: 2 Effective from 20th October 2016 L1-CHE-SPE-157 Approving Manager: Head of Engineering - Electrical Approval Date: 20/10/2016 Next Review Date.

2 20/10/2019 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 2 of 15 Approval Amendment Record Approval Date Version Description 20/07/2016 1 Initial issue under MTM. 20/10/2016 2 Three phase option removed. Tappings altered to include dual operation. Updates throughout. This document supersedes VRIOGS SIGNAL POWER SUPPLY TRANSFORMERS 3300/2200/110V AC 50HZ MESP 040100-03 Version: 2 Effective from 20th October 2016 L1-CHE-SPE-157 Approving Manager: Head of Engineering - Electrical Approval Date: 20/10/2016 Next Review Date: 20/10/2019 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 3 of 15 Table of Contents 1 Purpose.

3 4 2 Scope .. 4 3 Abbreviations .. 4 4 Definitions .. 4 5 References & Legislation .. 5 General .. 5 Standards .. 5 Legislation .. 6 MTM Documents .. 6 6 Transformer .. 6 General .. 6 Standard Sizing .. 7 Windings .. 7 In-rush Current .. 8 Noise .. 8 7 Ratings and Configuration .. 8 8 Construction .. 9 General .. 9 Tappings and Terminals .. 9 Construction .. 9 Labelling .. 10 9 Testing .. 11 Type Test .. 11 Routine Tests .. 11 Certificates .. 11 10 Other .. 12 Warranty .. 12 Maintainability .. 12 Guaranteed Performance.

4 12 11 Packaging and Delivery .. 13 12 Appendices .. 13 Appendix 1: Details and Guaranteed Performance to be Supplied by Manufacturer .. 14 SIGNAL POWER SUPPLY TRANSFORMERS 3300/2200/110V AC 50HZ MESP 040100-03 Version: 2 Effective from 20th October 2016 L1-CHE-SPE-157 Approving Manager: Head of Engineering - Electrical Approval Date: 20/10/2016 Next Review Date: 20/10/2019 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 4 of 15 1 Purpose To define the requirements for the selection of indoor, dry type cast resin TRANSFORMERS for use in the Melbourne metropolitan railway SIGNAL POWER network.

5 This specification covers TRANSFORMERS with a primary voltage of 3300V and 2200V and a secondary voltage of 110V. 2 Scope This Specification applies to the upgrade of existing signalling equipment and to all new signalling arrangements in the MTM network. It shall be utilised for the purchase of all 110V SUPPLY TRANSFORMERS connected to or SIGNAL POWER distribution systems. Such TRANSFORMERS may be located within trackside HV location boxes or indoor installations such as POWER Equipment Room. This specification supersedes VRIOGS 3 Abbreviations AC Alternating Current Hz Hertz kV kilo Volt MTM Metro Trains Melbourne Pty.

6 Ltd. V Voltage VRIOGS Victorian Rail Industry Operators Group Standard 4 Definitions For all technical terms refer to AS 60076. Dry-type Transformer A transformer of which the magnetic circuit and windings are not immersed in an insulating liquid. Essential Services A number of railway services considered essential to the running of trains or public safety including signalling and CCTV. Primary Tapping The tapping to which the rated quantities are related. Primary Winding The winding that receives the active POWER from the SUPPLY system, usually the winding having the highest rated voltage.

7 Secondary Winding The winding that delivers the active POWER to the load circuit, usually the winding having the lowest rated voltage. Shall Is used as the descriptive word to express a requirement that is mandatory to achieve conformance to the standard. Should Is used as the descriptive word to express a requirement that is recommended in order to achieve compliance to the standard. should can also be used if a requirement is a design goal but not a mandatory requirement. SIGNAL POWER SUPPLY TRANSFORMERS 3300/2200/110V AC 50HZ MESP 040100-03 Version: 2 Effective from 20th October 2016 L1-CHE-SPE-157 Approving Manager: Head of Engineering - Electrical Approval Date: 20/10/2016 Next Review Date: 20/10/2019 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 5 of 15 SIGNAL POWER SUPPLY Transformer A transformer that transforms the system voltages to a secondary voltage of nominally 110 V AC for the purpose of supplying POWER to the signalling circuits.

8 5 References & Legislation General All materials and components shall comply with the relevant Australian Standard or, where these do not exist, with the relevant IEC or EN Standard. Reference to all standards shall be read as a reference to the latest edition of that standard and amendments available at the time of tendering. The transformer shall meet all relevant Environmental Acts, Legislation and Regulations, Codes of Practice and Standards, and shall be designed to minimise the impact on the environment. Accordingly the transformer shall minimise its environmental impact over its entire asset life cycle, including construction, ongoing operation and disposal.

9 In particular, MTM has a focus on reduced electrical losses in its electrical systems. Standards AS Metal finishing- Preparation and pre-treatment of surfaces Part 4: Abrasive blast cleaning of steel. AS 2067 Substations and high voltage installations exceeding 1kV AC AS 2317 Collared Eyebolts AS/NZS 2344 Limits of electromagnetic interference from overhead AC POWER lines and high voltage equipment installations in the range to 1000 MHz AS POWER TRANSFORMERS Part : Minimum energy performance standard (MEPS) requirements for distribution TRANSFORMERS AS POWER TRANSFORMERS Part 2: Temperature rise.

10 AS POWER TRANSFORMERS Part 5: Ability to withstand short-circuit. AS 2629 Separable insulated connectors for POWER distribution systems above 1kV AS 2700 Colour standards for general purposes AS Paints for Steel Structures Epoxy Primer (two packs) AS Paints for Steel Structures Full Gloss Epoxy (two packs) AS/NZS Paints for steel structures Part 15: Inorganic zinc silicate paint. AS 3953 Loading guide for dry-type POWER TRANSFORMERS . AS/NZS 4680 Hot-dip galvanized (zinc) coatings on fabricated ferrous articles. AS POWER TRANSFORMERS Part 1: General.