MESP TECHNICAL SPECIFICATION FOR A STATIONARY CONTROL BATTERY AND CHARGER SET FOR USE IN A SUBSTATION

Transcription

1 Engineering Specification Electrical Networks TECHNICAL SPECIFICATION FOR A STATIONARY CONTROL BATTERY AND CHARGER SET FOR USE IN A SUBSTATION Version: 2 Issued: August 2016 Owner: Head of Engineering - Electrical Approved By: Andrew Russack Head of Engineering - Electrical PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION

2 Approval Amendment Record Approval Date Version Description 18/03/ Initial issue under MTM. Replaces MainCo document MESP /08/ Document Corporate number changed from L2-ELN-SPE-010, minor corrections and clarifications throughout. PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 2 of 13

3 Table of Contents 1. Purpose Scope Abbreviations Definitions References & Legislation Standards Latest Issues and Amendments Compliance and Environmental Impact Background Operating Conditions Environmental Conditions Technical Requirements Battery Battery Charger Enclosure Testing Required Tests Test Certificates Documentation and Support Documentation Requirements Instruction Manual Appendix A Technical Data Schedule Form PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 3 of 13

4 1. Purpose This document is the technical specification for a stationary battery and battery charger set for use as a control supply in an MTM Substation or Tie Station. 2. Scope This specification covers the procurement of new control batteries and chargers for use in MTM Substations and Tie Stations. This specification is to be read in conjunction with the supplied scope of works document which details the exact configuration, quantities and any other special requirements. 3. Abbreviations AC - Alternating Current ACCB - Alternating Current Circuit Breaker DC - Direct Current DCCB - Direct Current Circuit Breaker Electrol - Electrical Systems Control Centre HV - High Voltage LV - Low Voltage MCB - Miniature Circuit Breaker MTM - Metro Trains Melbourne SCADA - Supervisory Control and Data Acquisition system. 4. Definitions For all technical terms refer to AS and AS Shall Should Is used as the descriptive word to express a requirement that is mandatory to achieve conformance to the standard. 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. PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 4 of 13

5 5. References & Legislation 5.1 Standards The Battery and Charger shall comply with Australian Standards including: AS AS 3000 Guide to the installation, maintenance, testing and replacement of secondary batteries in buildings - Sealed cells Electrical installations (Australian/New Zealand Wiring Rules) AS Electrical installations - Secondary batteries installed in buildings - Sealed cells AS 4044 AS Latest Issues and Amendments Battery chargers for stationery batteries Stationary batteries Lead-acid: Valve regulated type. 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. 5.3 Compliance and Environmental Impact The battery and charger 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 design will minimise the environmental impact of the asset over its entire life cycle, including construction, ongoing operation and disposal. In particular, MTM has a focus on reduced electrical losses in its substation equipment. 6. Background The equipment covered by this document will typically be used in MTM Substations and Tie Stations. The substations primarily convert electricity from a high voltage AC network to supply its railway system at a nominal 1500 V DC whilst tie stations are utilised for protection and switching of the 1500V DC system. 6.1 Operating Conditions The Control Battery will normally be maintained at float voltage by the Charger, and used to control, switch and protect the HV and LV electrical equipment in the substation. Generally, the required battery capacity shall be calculated in accordance with IEC 485, able to supply the standing load for 8 hours, and the intermittent loads for three open/close cycles during the 8 hour period. The required battery and charger capacities will be specified at the time of ordering based on the expected loading, as outlined within L1-CHE- INS-032 Design Practice Note Substations Battery and Battery Charger. PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 5 of 13

6 6.2 Environmental Conditions The Battery and Charger enclosure will be installed indoors, on a concrete floor. The indoor service conditions as stated in AS 2067 shall be applied, except that the maximum ambient temperature shall be 45 C. 7. Technical Requirements 7.1 Battery The Battery shall be of the valve regulated (sealed), lead-acid type The Battery shall consist of a number of series connected cells The Battery may also consist of cells connected in parallel if required to maintain standardisation of cells whilst increasing capacity The battery voltage required will depend on the location, and will be specified at the time of ordering as one of the following: 48V 110V 125V The battery capacity and performance requirements shall be specified at the time of ordering based on load calculations. 7.2 Battery Charger The Charger shall be classified as Type 2 as per AS 4044:1992 and shall include temperature compensated charging The input to the Charger shall be three 230V 50Hz AC unearthed supplies. These will typically be the three phase to neutral voltages of a 400V MEN type system, or three phase to phase voltages of a 230V system as shown in Figure 1 and Figure 2 or a single phase supply as shown in Figure 3. The Charger shall include a 2 pole MCB as overcurrent protection for each AC input. PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 6 of 13

7 Red White Blue Neutral Battery Charger Figure 1: MEN Type Installation Red White Blue Battery Charger Figure 2: Phase to Phase Installation PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 7 of 13

8 Active Neutral Battery Charger Figure 3: Single Phase Installation Each of the three inputs shall be sufficiently sized to maintain, without the other inputs operating, the current charge level of the battery whilst supplying the standing load continuously and the intermittent load once per hour The charger shall be capable of charging the battery to attain a minimum capacity of 80% after 8 hours, and 100% after 24 hours The DC output of the Charger shall comply with Clause 6 of AS 4044: The Charger shall provide the following alarms: Charger output failure alarm, Low DC float voltage alarm, Ground detector alarm, and AC power indication The Charger shall incorporate analogue meters with a minimum 60mm scale length, and conforming to the requirements of AS A pair of 100A fuse holders of the MEM type M or similar shall be provided in the DC output from the Charger. 7.3 Enclosure The Control Battery and Charger Set shall be installed in a single floor mounted Enclosure The Charger and the Battery shall be located in separate compartments The Battery Compartment shall comply with AS and AS PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 8 of 13

9 7.3.4 The Battery shall be mounted on a corrosion resistant frame which allows safe and ergonomic inspection and maintenance of the cells The Enclosure and its metalwork shall be suitably protected against corrosion for the expected life of the Charger. It shall be suitably prepared and coated with an approved and tested paint system A lifting facility shall be provided to enable the Enclosure to be moved or relocated safely as required. The frame shall be sufficiently rigid so as not to deform when lifted The MCB, DC output fuse holders, indicating lights and meters shall all be ergonomically positioned on the outside of the enclosure The enclosure shall provide a minimum ingress protection of IP 21 in accordance with AS The enclosure shall be directly connected to the substation earth. A pre-drilled M12 hole shall be provided for this purpose. 8. Testing 8.1 Required Tests Testing shall be carried out on the charger in accordance with clauses 6.4, 6.5, 6.6, 6.7, 6.8, 6.9 and 6.10 of AS 4044: Type testing of the battery shall be carried out which includes each of the tests described in Section 5 of AS : Test Certificates The results of all tests shall be recorded on test certificates. The test certificates shall clearly show the performance of the equipment and shall be accompanied by tables showing the actually measured values and all calculations The test certificates shall be forwarded to MTM and the results approved by MTM prior to delivery. PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 9 of 13

10 9. Documentation and Support 9.1 Documentation Requirements All documentation shall be provided in English One electronic and four paper copies of the each document shall be provided and the content shall be identical in each copy Every page of the documentation shall be clearly identified in relation to the document to which it belongs and the version of that document. All pages of multipage documents shall be uniquely numbered. It shall be possible to readily determine if all pages of a document are present Manuals shall be A4 size and shall be bound in durable covers or in 4-D ring binders. 9.2 Instruction Manual One hard copy of an Instruction Manual containing all the information specified in Clause 10 of AS 4044:1992 shall be provided with each Control Battery and Charger Set. PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 10 of 13

11 Appendix A Technical Data Schedule Form The Tenderer shall supply the following information and any other descriptive pamphlets or drawings as may be required to fully describe the offer at the time of tendering. Battery Manufacturer name. Manufacturer address.. Manufacturer product code Product description Battery type Number of cells in series Number of cells in parallel Rated capacity (Ah) - at Hour rate - to V per cell Method of electrically connecting cells PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 11 of 13

12 Cell Weight (kg) Length (mm) Width (mm) Height (mm) Enclosure Manufacturer name Manufacturer address.. Length (mm) Width (mm) Height (mm) Mounting requirements.. Type of finish Has a typical drawing been attached to describe layout? YES / NO PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 12 of 13

13 Charger Manufacturer name. Manufacturer address.. Manufacturer product code Product description Classification as per AS 4044 Are details of temperature compensation attached? YES / NO Rated input voltage (V) Rated input frequency (Hz) Nominal output voltage (V) Float voltage range (V).to Ripple voltage (%) Alarms provided PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 13 of 13