Technical specification for single phase step voltage ... · List of applicable latest versions of...

Specification ETS02-04-01 Ver 5

Ergon Energy Corporation Limited ABN 50 087 646 062

Ergon Energy Corporation Limited

Technical Specification for Single Phase Step Voltage Regulators

ETS02-04-01


i Specification ETS02-04-01 Ver 5


Contents 1. Purpose and Scope...................................................................................................... 1

1.1 Technical Requirements ..................................................................................... 1

1.2 Alternative Tenders............................................................................................. 1

2. References.................................................................................................................... 1

2.1 Applicable Standards .......................................................................................... 1

3. Drawings....................................................................................................................... 2

3.1 Drawings by the Purchaser ................................................................................. 2

4. Service Conditions....................................................................................................... 2

4.1 Climatic Conditions ............................................................................................. 2

4.2 System Parameters ............................................................................................ 3

5. Design and Construction ............................................................................................ 3

5.1 Operational Requirements .................................................................................. 3

5.2 Details of Plant.................................................................................................... 5

6. Performance and Testing .......................................................................................... 12

6.1 Inspections........................................................................................................ 12

6.2 Routine Tests.................................................................................................... 12

6.3 Type Tests ........................................................................................................ 12

6.4 Witnessing of Tests........................................................................................... 12

6.5 Test Certificates and Nameplate details ........................................................... 12

7. Risk Assessment ....................................................................................................... 13

7.1 Compliance....................................................................................................... 13

7.2 Formal Risk Assessment .................................................................................. 13

7.3 Hazards ............................................................................................................ 13

8. Quality Assurance...................................................................................................... 13

8.1 Purchasers Policy ............................................................................................. 13

8.2 Documentary Evidence..................................................................................... 13

8.3 Quality Certification Program ............................................................................ 14

9. Samples ...................................................................................................................... 14

9.1 Production Samples.......................................................................................... 14


ii Specification ETS02-04-01 Ver 5


10. Packaging and Marking ............................................................................................. 14

10.1 General ............................................................................................................. 14

10.2 Marking ............................................................................................................. 14

10.3 Quarantine ........................................................................................................ 14

11. Service Performance ................................................................................................. 14

12. Reliability .................................................................................................................... 15

12.1 Service Life ....................................................................................................... 15

12.2 Evidence in Support of Reliability...................................................................... 15

13. Training....................................................................................................................... 15

14. Environmental Considerations ................................................................................. 15

15. Information to be Provided ....................................................................................... 15

15.1 Documentation to be Supplied During the Course of the Contract.................... 15

15.2 Documentation to be Supplied with the Offer.................................................... 15

16. Attachment 1 – Specific Requirements.................................................................... 17

17. Attachment 1 – Specific Requirements…(Cont’d)................................................... 18

18. Attachment 2 – Guaranteed Technical Particulars.................................................. 19

19. Attachment 2 – Guaranteed Technical Particulars… (Cont’d) ............................... 20



22. Attachment 3 – Plant Details..................................................................................... 25

23. Attachment 3 – Plant Details…(Cont’d).................................................................... 26

24. Attachment 3 – Plant Details..................................................................................... 29

25. Attachment 3 – Plant Details…(Cont’d).................................................................... 30

26. Attachment 4 – Recommended Spares, Special Tools and Options..................... 32

27. Attachment 4 – Technical Document Checklist ...................................................... 33

28. Attachment 5 – Risk Assessment............................................................................. 34

29. Attachment 6 – Drawings .......................................................................................... 36

30. Attachment 7 – Name Plate Details .......................................................................... 41


Page 1 of 41 Specification ETS02-04-01 Ver 5


1. Purpose and Scope

This specification covers the design, manufacture, testing at works, supply and deliver to a location within Ergon Energy’s area of supply, of:

ITEM 1: 11kV, 50A, single phase, 50 Hz, step voltage regulators ITEM 2: 11kV, 100A, single phase, 50 Hz, step voltage regulators ITEM 3: 11kV, 200A, single phase, 50 Hz, step voltage regulators ITEM 4: Multi-voltage (11-22kV), 50A, single phase, 50 Hz, step voltage

regulators ITEM 5: Multi-voltage (11-22kV), 100A, single phase, 50 Hz, step voltage

regulators ITEM 6: Multi-voltage (11-22kV), 200A, single phase, 50 Hz, step voltage

regulators

1.1 Technical Requirements Suppliers are invited to submit offers strictly in accordance with the technical requirements of this specification. Only such tenders will be regarded as conforming tenders.

1.2 Alternative Tenders Suppliers may submit alternative tenders based on their standard designs provided that the equipment so offered will perform the same functions as described herein. Departures from this specification shall be fully documented in the tender.

2. References

2.1 Applicable Standards The step voltage regulators shall be designed, manufactured and tested in accordance with the relevant parts of the following standards and all amendments issued from time to time except where varied by this specification. Should inconsistencies be identified between Standards and/or this specification, the Supplier shall immediately refer such inconsistencies to the Purchaser for resolution. List of applicable latest versions of Australian and International Standards.

STANDARD TITLE ANSI/IEEE C57.12.00

General Requirements for Liquid Immersed Distribution Power and Regulating Transformers

ANSI/IEEE C57.95

Regulators, Guide for Loading Liquid Immersed Step Voltage and Induction Voltage

USAS C57.15 Requirements, Terminology and Test Code for Step Voltage and Induction Voltage Regulators

AS 2374 Power Transformers AS 1767 Insulating Oil for Transformers and Switchgear AS/NZS60137: Bushings for Alternative Voltages above 1000 V AS 2700 Colour for Specific Purposes




AS 60044.1 Current Transformers for Measurement and Protection AS 1243 Voltage Transformers for Measurement and Protection AS 1931 High Voltage Testing Techniques AS 60214.1 Tap Changers Performance Requirements & Test Methods AS 1939 Classifications of Degrees of Protection Provided by Enclosures for

Electrical Equipment AS 4068 Flat Pallets for Materials Handling As2312 Guide to Protection of Structural Steel against atmospheric corrosion by

the use of protective coatings AS1580 Paints & related materials – Methods of Test- Introduction and list of

Methods AS/NZS ISO 31000

Risk Management

AS/NZS 9001 Quality management systems - Requirements

If tenderers are offered for any equipment not complying with these standards, detailed descriptions shall be given of the differences between the apparatus offered and the standard requirements.

3. Drawings

3.1 Drawings by the Purchaser The following specification drawings are associated with this document:

DRAWING NUMBER TITLE A3-872319-01-OC Pole Mounting Bracket to Suit Twin Voltage Regulators

Fabrication Details A3-889392-01-OB Single Regulator Mounting Bracket A4-872551-01-OC Regulator Control Box Mounting Bracket A3- 1345-B (sheet 3) Regulators Open Delta 11kV (50A to 200A) – 22kV (50A-100A)

Construction

4. Service Conditions

4.1 Climatic Conditions 4.1.1 The regulators will be installed outdoors and exposed to the high temperature and humidity

conditions experienced in Regional Queensland.

4.1.2 Some regulators will be installed close to ocean beaches and will be exposed to a salt laden atmosphere.




4.1.3 Typical environment statistics for the Ergon Energy's supply area are:

Ambient Temperatures 45o summer day time -5o winter night time

Solar Radiation Level 1100 watts per square metre with high ultraviolet content

Precipitation Tropical summer storms with gust wind speeds above 160km/h, and an annual rainfall in excess of 1500 mm

Humidity Extended periods of relative humidity in excess of 90% R.H.

Atmospheric Classifications

Areas of coastal salt spray and/or industrial pollution with equivalent salt deposit densities in the range of 2.0 - 3.0 g/m2.

Isokeranuic level 40 4.2 System Parameters

3 phase, 3 wire, 50 Hz system with the neutral solidly earthed only at the source of supply. Some regulators will be used on 12.7kV and 19.05kV Single Wire Earth Return distribution systems. System parameters are as follows: Nominal line voltage (kV) 11 22 12.7 19.05

Highest system voltage (kV) 12 24 14.6 21.9

System LIWL (kVp) 95 150 150 200

System Frequency (Hz) 50 50 50 50

Short circuit level (kA 1sec) 21 10.5 4.0 4.0

5. Design and Construction

Design and construction performance parameters are detailed in this section and supplemented by Attachment 1 - Specific Requirements.

5.1 Operational Requirements 5.1.1 Rating

Each regulator shall be continuously rated for not less than the specified rated current for the equipment on any tap with ONAN cooling under the temperature conditions as set out in AS 2374, Part 2. Forced air-cooling is unacceptable.

5.1.2 Regulator Configurations The regulators shall be suitable for connection in open delta or closed delta configurations to regulate the voltage on three phase 11kV or 22kV systems. The items 4 to 6 listed under clause 1.0 above shall also be suitable for use as individual units to regulate the voltage on 12.7kV or 19.05kV single wire earth return lines.




5.1.3 Short Circuit Capacity The windings must be adequately braced against mechanical and electrical vibrations and stresses, and capable of withstanding short circuits as specified in AS 2374-, Part 5. The regulators shall be designed to withstand r.m.s. symmetrical short-circuit currents of 25 times the normal full load current for a period of 2 seconds.

5.1.4 On Load Tap Changing Equipment The regulators shall be provided with on-load tap changing equipment suitable for regulating the voltage. The tap changing equipment shall be complete with all necessary additional windings, voltage transformers, current transformers and other equipment required in the terms of this specification for automatically maintaining the voltage on the outgoing side within 1% of the required value under all conditions of voltage variation on the incoming side within the tapping range and load variations specified below. When connected in accordance with the configurations listed in clause 5.1.2 above, the regulators shall maintain the normal output line voltage within 1% of the required value under all loading conditions, for variations of the input voltage from +10% to –10% of rated voltage. This shall be achieved by providing thirty-three tappings in steps of 5/8% of nominal voltage. Tenderers shall state whether provision can be made to change the range of regulation from 10% raise and 10% lower to 15% raise and 5% lower by means of an internal voltage tap. The regulators shall be provided with a voltage limiting facility to control the minimum and maximum limits on the voltage of the output terminals of the regulator. The variation of voltage between tapping’s shall be smooth and without disturbance of line conditions. The equipment shall not cause radio interference in any position of the tap changer whether the same is fixed or in motion. The time required to change from one tapping position to the next shall be stated in the tender documentation. The tap changing equipment shall not cause any change of phase angle. The regulator shall be suitable for fully automatic operation independent of any external supply for the auxiliary equipment. Fuses shall not be fitted inside the regulator tank. The equipment shall be suitable for fully automatic operation as well as by manual operation from a control switch or push buttons in the control panel. Once a change of tapping has been initiated the operating equipment shall complete the change under its own control whether operated automatically or manually, and irrespective of any change in line voltage. Each regulator shall have the facility of either manual or automatic operation of the tap changer by either source of power (the regulator) or an external power source controlled by a three position switch labelled to indicate the method. i.e. “internal”, “off” and “external”. The external (auxiliary) source shall be 240 V, 50 Hz and the external source terminals shall be marked by a label accordingly.




The supplier shall ensure that the regulators are suitable for operation on Ergon Energy’s 50 + 2 Hz system and that they function correctly at this frequency. Each regulator shall be capable, if required, of being “auto/remote” controlled. The feature shall be supplied as a “plug-in” optional accessory to enable remote control of the regulator. The feature shall enable full remote metering and real-time operation capability including changing of parameters, the ability to tap up or down a specified number of taps, the ability to determine the status of local activity, etc. The feature shall also cater for 2 external digital inputs eg. remote radio battery alarm. Only in special circumstances will the radio be located remotely from the regulator site. Reverse Power Flow Detection - Purchaser will require some regulator units supplied under this contract to be armed with the capability of detecting reverse power flow, and sensing and controlling the output voltage regardless of the direction of power flow. Full details (including cost) of the additional components and the modifications to the control circuitry necessary for incorporating this facility to the regulator units offered shall be provided with the tender submission. Metering Voltage Transformer and Current Transformer - Voltage and current transformers shall be provided in the regulator for the operation of the line drop compensator and the metering requirement detailed in clause 5.2.7 below.

5.2 Details of Plant 5.2.1 Magnetic Circuit

The magnetic circuit shall be earthed to its support structure, which shall in turn be earthed to the tank.

5.2.2 Tank and Fittings 5.2.2.1 Construction

The construction of tank, cover, bushing fixing and auxiliary equipment shall be such that water will not interfere with their operation and will drain off effectively. All pieces of metal work on the regulator shall be earthed and, where this cannot be done with safety, suitable insulating material shall be used in lieu of metal. The structure plant number (SPN) should be marked on the tank.

5.2.2.2 Lifting Arrangements Facilities shall be provided to permit lifting all parts, which have to be removed for inspection or repair. Lifting lugs shall be provided to lift the units as a whole, or to tie down the units during transport. They shall be positioned such that slings attached thereto do not foul with any part of the regulator and when suspended by them, the regulator shall hang without tilting. Fully dimensioned drawing showing the lifting lugs shall be included in the tender documentation.

5.2.2.3 Oil Gauges An oil gauge of an approved type shall be fitted to give a visible indication of the tank oil level under all operating conditions. The gauge shall be clearly and permanently marked to show the approximate level at a normal operating temperature.

5.2.2.4 Valves A metallic seating drain valve preferably of the gate type with flanged plug shall be fitted to the regulator so that it can completely drain off all the sludge and thick oil from the bottom of the tank.




All draining and filling valves shall be effectively sealed with screwed plugs of the flanged type fitted with sealing gaskets. Tapered screwed plugs are not acceptable. All valves shall preferably be of the gate type or approved equivalent. The valve manufacturer’s name shall be stated in the tender.

5.2.2.5 Pressure Relief and Explosion Venting The regulators shall preferably be sealed and not require the use of breathers. The regulators shall however be provided with a pressure relieving/equalising device to permit automatic manual relieving of internal pressure caused by tap switch sparking. If the Tenderer’s standard product is not the sealed type, tenderers are required to quote for the provision of an explosion vent, valve (Qualitrol or equivalent) as an optional feature to relieve the pressure build up due to an internal fault, without causing the tank to rupture. The vent shall be designed to relieve the pressure on a safe manner before the oil reaches a dangerously high temperature.

5.2.2.6 Earthing Stud A stainless steel earthing stud (or acceptable equivalent) of 12 mm Diameter with 40 mm of thread complete with two stainless steel washers and two stainless steel nuts, for connecting an earth down lead, shall be provided near the bottom of the tank. The earth stud shall be welded to the tank, i.e. there are to be no bolted connection in the electrical path between the stud and the tank. The stud shall be coated with an anti-seizing compound. Painting and other non-conductive coatings are unacceptable.

5.2.2.7 Regulator Mounting The regulators shall be fitted with pole mounting brackets located to align with and suit the regulator mounting holes shown in Drawing No A3-872319-01 and Drawing No A3-889392-01. The Purchaser will provide the hanger brackets as required. The upper mounting bracket shall be provided with jump proof lips. They shall be positioned in a manner to allow the use of a 75x75x6mm square washer behind the head of the M24 bolt attaching the regulator to the hanger bracket. Each regulator tank shall have a circular base and four equally spaced bush type shipping lugs. To reduce the possibility of rusting of the tank, channels, angle brackets or similar materials shall be attached to the tank to ensure that the base is not in contact with any other surface while in storage or while being transported. Round tanks with square bases and folded edges are unacceptable.

5.2.2.8 Location of Fittings All fittings shall be located in positions suitable to the Purchaser’s requirements as illustrated in Drawing No’s A3- 1345 (sheet 3).

5.2.2.9 Control Cubicle Mounting Each control cubicle shall be fitted with two mounting points centrally located on the vertical axis to align with and suit the mounting holes shown in Drawing No’s A4-872551-01. When erected, the control cubicles shall not extend past the mounting frame in the vertical plane. The Purchaser will provide the mounting frame shown in Drawing No. A4-872551-01.

5.2.2.10 Bushings and Connections The bushings shall be adequately spaced and the terminals suitable for the connection of bare copper or aluminium conductors. The clearance between live metal on the bushings and the surface of the regulator mounting pole or the regulator housing (phase to earth) shall be not less than 160 mm on the 11kV units and 280 on the multi-volt type units. The porcelain HV




bushings shall be glazed in a light Munsell grey colour and fully vitrified. A by-pass surge suppression device shall be mounted externally on the regulator bushings and connected across the series winding. The Purchaser prefers external surge suppression or similar devices in order to minimise the possibility of an internal fault occurring. The bushing identifications (S, L & SL) shall be appropriately stamped on the regulator lid.

5.2.3 Surge Arrester Brackets

5.2.3.1 Brackets Brackets for mounting surge arresters shall be attached to the regulator tank, adjacent to each HV bushing. The surge arresters will be supplied and fitted by Ergon Energy. Stud (M12) mounting polymer gapless metal oxide surge arresters are presently being used.

5.2.3.2 Minimum Clearance There shall be a minimum clearance of 250 mm between the surge arrester mounting bracket and any jutting metal work.

5.2.3.3 Bracket Positioning The brackets shall be positioned such that the surge arrester HV terminals would be approximately at the same level as the regulator bushing terminals.

5.2.4 Tap Changing Equipment 5.2.4.1 Tap Changing Mechanism

Tap changing mechanism shall be motor driven and completely immersed in oil. The motor shall be liberally rated to meet the requirements of service including locked rotor situations for extended periods. The tenderer shall state the maximum locked rotor current withstand period applicable to the equipment tendered.

5.2.4.2 Electrical / mechanical Devices The tap changing mechanism shall be provided with suitable electrical / mechanical devices to prevent the switchgear being driven beyond the top or the bottom tap by the operating mechanism.

5.2.4.3 Position Indicators Position indicators shall be fitted so that the tap position is clearly indicated at all times. The indicator shall be marked in numbers 1-33, No. 1 tapping position shall be the highest ratio tapping (+10%) and No.33 tapping position shall be the lowest ratio tapping(-10%).

5.2.4.4 Independent and Reliable A minimum of two independent and reliable means shall be provided to determine and confirm the position of the neutral tap position, and shall be visible from the operating position of the control box. If the tap position indicator is one of the means, it shall be entirely reliable over the normal working life of the regulator. The Supplier will be required to prove the reliability and the soundness of the T.P.I design. Each means shall be suitable for use both with the regulator in service and also when it is being readied for service. The proximity of exposed live conductors shall not prevent use of either means. It is preferred that the neutral tap position can be determined also by means of potential detecting devices and displayed on an electronic screen. Tenderers shall comment on the ability of their equipment to perform this function. All means of determining the neutral tap position shall be visible from the operating position at the control box refer to




Drawing No. A3-1345 sheet 3. The neutral indicating devices shall be fail safe. They shall not indicate “neutral” when the regulator is not in the neutral position.

5.2.4.5 Maximum and Minimum Position Indicator Maximum and minimum position indicator shall be fitted to show the maximum and minimum positions reached during operation. Such indications shall be readily re-settable without removing mechanism covers. A counter shall be fitted to show the number of operations.

5.2.5 Secondary Wiring and Cabling 5.2.5.1 P.V.C. or XLPE insulated All conductors used for secondary wiring shall be P.V.C. or XLPE insulated, stranded copper, and shall have a cross-sectional area of not less than 3 mm2. 5.2.5.2 Insulation Sheathing Colour All insulation sheathing shall be coloured black and capable of withstanding exposure to direct sunlight without deterioration. The insulation shall be stable against ultra violet radiation. 5.2.5.3 Watertight All connections of cables to apparatus control mechanism box shall be completely watertight. 5.2.5.4 Identification All secondary wiring must be identified by means of numbered ferrules on each end of every wire or equivalent acceptable to the Purchaser. The numbers used shall be clearly indicated both on the schematic diagrams and on the wiring diagrams. The ferrules shall be of white insulating material having a glossy finish, and the characters shall be indelibly marked in black. Numbers painted on will not be acceptable. Small wiring shall be made up in harness form and cleated in place. If there is danger of damage to this wiring during transport, the harness shall be removed and packed separately.

5.2.6 Control Cubicles

5.2.6.1 Each regulator shall be complete with a control unit having: a) A static sensing device b) A line drop compensator c) A voltage integrator time delay relay d) An operation counter e) Reverse power flow detection (optional) f) Ability for future supervisory control (refer clause 5.1.4.13)

The cubicle shall be completely self contained, weatherproof and able to be mounted remote from the main regulator tank by means of a 7.3m long control cable. The control cable shall be immune to the effects of electromagnetic interference. The control cubicle shall have a degree of protection of IP56D in accordance with AS 1939, and shall be manufactured from either “Lysaght 3CR12” or stainless steel sheet and shall receive the same paint treatment as the regulator tank if of 3CR12 steel (Grade 316 stainless steel may be left unpainted).

5.2.6.2 Full Details Full details of the control panel, the method of operation and component settings and ranges shall be supplied with the tender.




5.2.6.3 Operable and Visible All regulator controls and indications shall be readily operable and visible by the operator when working from any normal operation position, including from a ladder against the pole. The control box shall not unnecessarily obstruct the operator. If an LCD is provided, the screen display shall be visible day and night, and shall have a guaranteed lifetime of at least 20 years. Functions shall be accessed via clearly labelled push buttons on the front panel. An RS232 data port shall also be provided for configuring / down loading via a lap-top PC.

5.2.6.4 Two complete spare sets of fuses used in the control circuits shall be supplied, suitably stowed, in the control cubicle.

5.2.7 Metering

The controller shall be able to provide time tagged min /max demand metering, with integration intervals of 15 minutes or less. These demands shall be capable of being reset via the push button display. The controller shall also be capable of recording line volts, current, kW & kVA, and have the ability to store minimum of one months’ data at 15 minute integration intervals. Units when configured for reverse power flow capability shall store the data for both forward and reverse power conditions

5.2.8 Nameplate

5.2.8.1 The maker’s nameplate shall be in accordance with Section 5 of AS 2374, Part 1.

5.2.8.2 In addition to Contract No and SPN, Ergon stock code shall be added to the technical details supplied on the makers’ nameplate for each regulator. The stock code shall be applied at the manufacturer’s works.

5.2.8.3 The structured plant number will be nominated in the purchase orders to the successful Tenderer, and will be an 8 digit number prefixed by 2 alphas (e.g. RZ12345678 for regulators)

5.2.9 Insulating Oil

Insulating oil shall be provided by the Supplier and shall comply in all respects with AS 1767. Each regulator shall be supplied filled with oil to a cold oil level at 15oC.

5.2.10 Protective Coating 5.2.10.1 Protection against Corrosion

The Purchaser required all internal and external surfaces to be treated with a coating, which provides protection against corrosion induced by water, salt laden atmosphere and low levels of industrial pollutants.

5.2.10.2 Compliance The protective coating shall comply with the following requirements:

a) Finished coatings shall be oil resistant, heat resistant and non-corrosive.

b) Exterior coatings shall have a heavy duty protective coating to meet the requirements of a ‘Long Term’ corrosion protection system in a ‘ Category E-M’ atmospheric environment as per AS 2312:2002

c) All coatings (except the interior surface of the regulator) where coloured, shall be storm grey, colour N42 to AS 2700.




d) All coatings (except the interior surface of the regulator) shall be capable of being maintained on-site.

e) The materials used and method of application shall be suitable for the base metal to be coated, shall be supplied by a reputable manufacturer and shall be applied in accordance with his recommendation for this particular application.

f) The Tenderer shall guarantee that after five years from acceptance the extent of corrosion at any one site on the equipment shall not exceed an area of five square centimetres nor penetrate the base metal by more than one tenth of the thickness of the base metal.

5.2.10.3 The Tenderer shall supply sufficient details to allow evaluation of the protective coating by the Purchaser, and shall include:

a) Description of base metals to be coated b) Make and type of materials used for cleaning, priming and

finishing. c) Details of the surface cleaning process used for removing rust, oil,

grease, dirt and other foreign matter and of the surface preparation process.

d) Details of all tests (accelerated aging, scab corrosion, salt spray, fog impact, etc) performed which prove the effectiveness of the proposed protective coating and how the proposed protective coating compared with other test samples. Testing to be carried out in accordance with AS1580.

e) Details of coating application process including measures taken to ensure adequate coating of edges, shadow areas and welds.

f) The standards and test criteria used to check acceptance at each stage of the process.

g) Estimated life of the protective coating in the environment specified in “Service Conditions” clauses.

h) Minimum thickness of protective coating i) Recommendations for on-site repair of damaged coating eg.

Scratches, chips, etc. from handling, necessary to achieve the estimated life of the protective coating.

5.2.11 Tools

5.2.11.1 Special Tools and Gauges The Tenderer shall include in Attachment 3 a separate price for any special tools and gauges required for the erection, operating and maintenance of the equipment.

5.2.12 Optional Extras 5.2.12.1 Additional Features

The Tenderer shall complete Attachment 3. Special attention should be directed towards Item 3 of the schedule (additional features recommended, etc.).

5.2.13 Spares 5.2.13.1 Prices for Recommeded Spares

The tenderer shall also state in Attachment 3 prices for recommended spares which shall be itemised and shall state if such spares are available from stocks held in Australia.




5.2.13.2 Other Spares Tenderers shall include an itemised price list of other recommended spares, which must include one (1) bushing of each type for each rating, as well as the individual prices for the associated terminal palms, gaskets and stem/flexible.

5.2.13.3 Spare Gaskets A set of spare gaskets to replace those used in joints, which must be broken for purposes of transport, and assembly on site shall be supplied with the regulators.

5.2.14 Chemicals and Chemical Substances 5.2.14.1 Chemical Substances

The Queensland Government Occupational Health and Safety Act requires the Purchaser to assess the possible effects on health, safety and environment of chemical substances which are used in the manufacture of plant and materials.

5.2.14.2 Safety Data Sheet Tenderers are required to provide with their tender documentation a Safety Data Sheet for every chemical substance used for electrical and thermal insulation, impregnation, and paint finish or for any other purpose.

5.2.15 Instruction Manuals 5.2.15.1 Documentation

Within two weeks of awarding the tender, the successful tenderer shall supply 3 copies of the following:

(a) General Arrangement Drawing (b) Operations and Maintenance Manual

5.2.15.2 Drawings Approval Ergon will approve only the drawings or sections thereof which relate directly to the integration with Ergon supplied equipment. The supplier shall amend the drawings as directed and resubmit them for approval within fourteen days.

5.2.16 Comparison of Tenders

5.2.16.1 Tender Consideration For the purpose of comparing tenders, due consideration will be given to the reliability and liberality of the design. The cost of routine/in service maintenance will be capitalised and added to the tender price for evaluation purposes, e.g. The number of normal service operations of the regulators before maintenance is required and the tank, lid and cooling fins, etc. materials and protective finish will be considered.

5.2.16.2 Capitalise the Guaranteed Losses When evaluating the tenders Ergon Energy will capitalise the guaranteed losses in order to make an economic comparison. The following values will be used for this purpose:

No-load losses - $6300.00 per kW Load losses - $1800.00 per kW




6. Performance and Testing

6.1 Inspections All designs, materials and workmanship shall be the best of their kind and shall be subject to inspection at any time by the Purchaser.

6.2 Routine Tests All routine tests as specified in Clause 10.1.1 of AS 2374, Part 1, shall be carried out, together with the following:

• Impedance voltage measurement at maximum, minimum and principal tap.

• Measurement of zero-sequence impedance as specified in Clause 10.7 of AS2374, Part1 with the regulator on principal tap.

• Measurement of no-load current with 100% and 110% excitation on principal tap.

• Secondary resistance and magnetisation curves on all current transformers.

• Operation of all motors, contactors, relays, etc at 80% of normal voltage.

One copy of the routine test results shall accompany each unit delivered. A second copy of the test certificates shall be forwarded to the Purchaser via electronic mail to: [email protected]

6.3 Type Tests

The following type tests shall be carried out in accordance with AS2374 part 2 and 3 as applicable on one regulator of each item:

a) Temperature Rise Test b) Full Wave Lightning Impulse Test c) Test with Lightning Impulse Chopped on the Tail

As an alternative to the actual type test reports, the Purchaser will accept certified reports of previous type tests carried out on identical regulator units.

6.4 Witnessing of Tests

The Purchaser reserves the right to either witness the tests or appoint a representative to witness the tests on behalf of Ergon Energy. The Supplier shall give Ergon Energy reasonable notice of when and where every test is to be carried out.

6.5 Test Certificates and Nameplate details Two certified copies of all test results shall be supplied to Ergon Energy immediately upon completion of the tests. Test certificates shall accompany the attachment “E” nameplate details.




One copy of the routine and type test results shall accompany each unit of switchgear delivered. A second copy of the test certificates shall be forwarded to the Purchaser via electronic mail to: [email protected]

7. Risk Assessment

7.1 Compliance The Tenderer warrants (without limiting any other warranties or conditions implied by law) that all Goods have been produced, sold and delivered to the Principal in compliance with all applicable laws (including all workplace health and safety and electrical safety legislation, codes of conduct and the Principal’s Workplace Health & Safety and Electrical Safety Conditions).

7.2 Formal Risk Assessment Offered items shall be subjected to a formal risk assessment prior to acceptance. It is preferred that the suppliers perform the risk assessment themselves and provide the resultant documentation with their offer. Where risk assessment documentation is not provided with the offers, or does not meet the required standard, such offers shall have their price loaded with the estimated costs associated with the Purchaser conducting the assessments. Any documented risk assessment which accompanies the offer must meet the requirements of AS/NZS ISO 31000:2009 Risk Management as a minimum standard. It is preferred that the risk assessment methodology uses an energy model to identify hazards.

7.3 Hazards The risk assessment/s must identify hazards to the corporation personnel, public and property associated with:

• The installation of the equipment • The operation and maintenance of the equipment during life expectancy • Dismantling/disposal of equipment at end of life • The “Risk Assessment” schedule included with this specification is to be completed

by the Supplier. Note: The schedule contains a generic set of questions designed to cover all the purchaser’s plant and materials and the supplier is only required to complete those items applicable to the product offered.

8. Quality Assurance

8.1 Purchasers Policy It is the Purchaser’s policy to procure goods, equipment and services from sources that demonstrate the ability to supply quality products.

8.2 Documentary Evidence Documentary evidence shall be provided concerning the level of quality system certification associated with the supplier and/or manufacturer. This documentation shall include the Capability Statement associated with the Quality System Certification.




Tenderer's attention is drawn to MP000801F100: Management Systems Information Schedule (Form) which forms an integral part of this specification.

8.3 Quality Certification Program

Tenderers shall provide details of their program to upgrade their Quality Certification to meet the requirements of AS / NZS ISO 9001.

9. Samples

9.1 Production Samples Production samples are not required under this specification.

10. Packaging and Marking

10.1 General Regulators shall be packed individually, complete with the control box and other accessories. Two copies of the instruction manuals must be included in each package. The packaging of the regulators by the suppliers must ensure that the units are delivered undamaged giving due consideration to the quantity, distance and the mode of transportation, and the preferred method of handling at each location.

10.2 Marking The regulator package shall be marked with the following:

• Manufacturers name or trademark • Manufacturers Part No. or Type • Rated System Voltage and BIL • Full Load Current • Purchaser's stock code. • Weight

10.3 Quarantine

Should any timber packaging be supplied from overseas manufactures, then it is mandatory that all conditions and inspections required by the Australian Quarantine Act be met and that all these costs be included in the offered price.

11. Service Performance

Potential first time Suppliers to the Purchaser shall state:

• The period of service achieved by items offered within Australian service conditions; • Australian electricity supply authorities who have a service history of the items

offered; • Contact names and phone numbers of relevant employees of those supply

authorities who can verify the service performance claimed.




12. Reliability

12.1 Service Life Comments on the reliability and performance of the items offered, for a service life of 35 years under the specified system and environmental conditions, shall be submitted with the offer.

12.2 Evidence in Support of Reliability Such comments shall include evidence in support of the reliability and performance claimed including information of Failure Mode and Effect Analysis.

13. Training

Training material in the form of drawings, instructions and/or audio visuals shall be provided for the items accepted under the offer. This material shall include but is not limited to the following topics:-

• Handling • Storage • Application • Installation • Commissioning • Operating procedures • Maintenance • Environmental performance • Electrical performance • Mechanical performance • Disposal

14. Environmental Considerations

Suppliers are required to comment on the environmental soundness of the design and the materials used in the manufacture of the items offered. In particular, comments should address such issues as recyclability and disposal at end of service life and also disposal of packaging material.

15. Information to be Provided

15.1 Documentation to be Supplied During the Course of the Contract Attachments 3 is a schedule of the plant details that the successful tenderers are required to provide:

• Test certificates as required in Clause 6. • Training material as required in Clause 13. • Dimensioned drawings for the equipment in CAD format

15.2 Documentation to be Supplied with the Offer

Attachments 2 is a schedule of the technical details that the tenderers are required to complete and return with their offer.




Attachment 4 is a schedule of recommended spares, special tools etc required for erection, operating and maintenance of the equipment which the tenderers are required to complete and return with their offer.

Attachment 5 is a checklist of supporting technical documentation which the tenderers are required to complete and return with their offer.

Attachment 6 is a Risk Assessment schedule that the tenderers are required to complete and submit with their offer.




16. Attachment 1 – Specific Requirements

The following table details the specific design and performance criteria for items covered by this specification

REF PARTICULARS UNITS ITEM 1 ITEM 2 ITEM 3 1. Rated voltage kV 11 11 11 2. Rated current A 50 100 200 3. Highest system voltage kV. 12 12 12 4. Rated frequency Hz 50 5. Lightning impulse withstand voltage kV peak 95 6. Rated 1 minute pf wet withstand voltage kV 28 7. Number of phases 1 8 Variable input voltage 8.1 Minimum V 9900 8.2 Maximum V 12100 9 Regulated output voltage V 11000 10 Tapping range +10% to -10% of 11000V in

32 equal steps 11 Minimum number of tap change operations without

the need for inspection 500 000

12 Sound level dB 55 13 Type of cooling ONAN 14 Minimum external taut-string metal to metal

clearance

• Phase – phase mm 280 • Phase - earth mm 160 15 Degree of protection of the operating mechanism

housing IP56D

SIGNATURE OF TENDERER: _________________________________




17. Attachment 1 – Specific Requirements…(Cont’d)

REF. PARTICULARS UNITS ITEM 4 ITEM 5 ITEM 6 1 Rated voltage kV 11-22 11-22 11-22 2 Rated current A 50 100 200 3 Highest system voltage kV. 12-24 12-24 12-24 4 Rated frequency Hz 50 5 Lightning impulse withstand voltage kV

peak 150*

(Preference given to units with 200kVBIL)

6 Rated 1 minute pf wet withstand voltage kV 50* *(a higher value preferred)

7. Number of phases 1 8 Variable input voltage 8.1 Minimum % -10% of nominal system

voltage 8.2 Maximum % +10% of nominal system

voltage 9 Regulated output voltage kV 11000/22000 10 Tapping range -10% to +10% of output

voltage in 32 equal steps 11 Minimum number of tap change operations without

the need for inspection 500 000

12 Sound level dB 55 13 Type of cooling ONAN 14 Minimum external taut-string metal to metal

clearance

• Phase – phase mm 320* • Phase - earth mm 280*

* (higher values preferred) 15 Degree of protection of the operating mechanism

housing IP56D





18. Attachment 2 – Guaranteed Technical Particulars

The tenderer shall complete this Attachment and shall guarantee the particulars and performances so set out. The Maximum values of which the equipment is capable shall be stated in the schedule.

GUARANTEED VALUE REF. PARTICULARS UNITS ITEM 1 ITEM 2 ITEM 3

7. Rated voltage kV 8. Rated current A 9. Rated output kV.A 10. Rated frequency Hz 11. Lightning impulse withstand voltage kV peak 12. Continuous maximum current rating A 7.1 Maximum temperature rise windings by

change in resistance method OC

7.2 Maximum temperature rise or oil OC 8. Symmetrical short circuit withstand

current rms kA for 2 secs

9. On load tap changer 9.1 Number of tappings 9.2 Location of taps 9.3 Rated voltage per step for tap-changer % 9.4 Tapping range (minimal secondary

voltage) %

9.5 Current rating A 9.6 Voltage rating • Phase – phase • Phase - earth • 1.2/50 micro-sec impulse 9.7 Maximum breaking current 10. No load loss as defined in Clause 3.6 of

AS 2374 Part 1

10.1 For 100% excitation: • At 16 raise tapping W • At 15 raise tapping W • At principal tapping W 10.2 For 110% excitation • At 16 raise tapping W • At 15 raise tapping W • At principal tapping W 11.1 At 16 raise tapping W 11.2 At 15 raise tapping W 11.3 At principal tapping W 12. Impedance voltage as defined in

Clause 3.7 of AS 2374, Part 1

12.1 +10% tap % 12.2 Principal tap %




19. Attachment 2 – Guaranteed Technical Particulars… (Cont’d)


12.3 -10% tap % 13. No load current with : 13.1 100% excitation (%of F.L.C) 13.2 110% excitation (%of F.L.C) 14. Magnitudes of harmonic in the no-load

current with a sinusoidal voltage imposed on principal tapping:

14.1 3rd harmonic (% no-load current) 100% excitation

100% excitation

14.2 5th harmonic (% no-load current) 100% excitation

100% excitation


100% excitation

15 Tests undertaken in accordance with As 1265 with which bushings offered will comply

15.1 Maximum 50 Hz voltage which bushings will withstand wet for 30 seconds

• Phase kV • Neutral kV 15.2 50 Hz puncture value (oil immersed) • Phase kV • Neutral kV 15.3 Full wave impulse test voltage for

1.2/50 positive and negative wave as defined in AS 1931

• kV positive • kV negative 16 Impulse withstand voltage for windings,

ie impulse voltage which windings will withstand without flashover or puncture in accordance with AS 2374 and AS1931

kV

17 Average sound level dB(A) 18 Guaranteed minimum number of tap

change operations before requiring:

18.1 Oil sampling/dielectric test






18.2 Internal inspection/overhaul

19 Guaranteed minimum number of months from commissioning after which internal inspection/overhaul is essential

Months

20 Does the equipment provide two or more reliable independent methods of ascertaining neutral tap position

Yes/No

21 Degree of protection of the control mechanism box

IP

22 Name of the regulator manufacturer

23 Country of manufacture

24 Type of regulator






The tenderer shall complete this Attachment and shall guarantee the particulars and performances so set out. The Maximum values of which the equipment is capable shall be stated in the schedule.

GUARANTEED VALUE REF. PARTICULARS UNITS ITEM 4 ITEM 5 ITEM 6 1 Rated voltage kV 2 Rated current A 3 Rated output kV.A 4 Rated frequency Hz 5. Lightning impulse withstand voltage kV peak 6. Continuous maximum current rating A 7.1 Maximum temperature rise windings by

change in resistance method OC

7.2 Maximum temperature rise or oil OC 8. Symmetrical short circuit withstand

current rms kA for 2 secs

9. On load tap changer 9.1 Number of tappings 9.2 Location of taps 9.3 Rated voltage per step for tap-changer % 9.4 Tapping range (minimal secondary

voltage) %

9.5 Current rating A 9.6 Voltage rating • Phase – phase • Phase - earth • 1.2/50 micro-sec impulse 9.7 Maximum breaking current 10. No load loss as defined in Clause 3.6 of

AS 2374 Part 1

10.1 For 100% excitation: • At 16 raise tapping W • At 15 raise tapping W • At principal tapping W 10.2 For 110% excitation • At 16 raise tapping W • At 15 raise tapping W • At principal tapping W 11.1 At 16 raise tapping W 11.2 At 15 raise tapping W 11.3 At principal tapping W 12. Impedance voltage as defined in

Clause 3.7 of AS 2374, Part 1

12.1 +10% tap % 12.2 Principal tap %





12.3 -10% tap % 13. NO load current with : 13.1 100% excitation (%of F.L.C) 13.2 110% excitation (%of F.L.C) 14. Magnitudes of harmonic in the no-load

current with a sinusoidal voltage imposed on principal tapping:

14.1 3rd harmonic (% no-load current) 100% excitation

100% excitation


100% excitation


100% excitation

15 Tests undertaken in accordance with As 1265 with which bushings offered will comply

15.1 Maximum 50 Hz voltage which bushings will withstand wet for 30 seconds

• Phase kV • Neutral kV 15.2 50 Hz puncture value (oil immersed) • Phase kV • Neutral kV 15.3 Full wave impulse test voltage for 1.2/50

positive and negative wave as defined in AS 1931

• kV positive • kV negative 16 Impulse withstand voltage for windings,

ie impulse voltage which windings will withstand without flashover or puncture in accordance with AS 2374 and AS1931

kV

17 Average sound level dB(A) 18 Guaranteed minimum number of tap

change operations before requiring:

18.1 Oil sampling/dielectric test 18.2 Internal inspection/overhaul 19 Guaranteed minimum number of months

from commissioning after which internal inspection/overhaul is essential

Months

20 Does the equipment provide two or more reliable independent methods of ascertaining neutral tap position

Yes/No




21 Degree of protection of the control mechanism box

IP

22 Name of the regulator manufacturer

23 Country of manufacture

24 Type of regulator





22. Attachment 3 – Plant Details

REF PARTICULARS UNITS ITEM 1 ITEM 2 ITEM 3

1. Manufacturers name 2. Country of manufacture 3. Type of regulator

4. Overall dimensions 4.1 Extreme height from floor level mm 4.2 Extreme projection floor level mmxmm 4.3 Minimum height to crane hook for

removal of core and coils out of tank including allowances for slings

4.4 Maximum dimensions for transport • Height • Length • Breadth

5. Masses 5.1 Mass of regulator complete with all

accessory equipment and filled with oil kg

5.2 Mass of regulator core and windings only kg 5.3 Total mass of copper in main winding kg 5.4 Total mass of copper in stabilising

(winding kg

5.5 Mass of active iron in core kg 5.6 Mass of tank kg 5.7 Mass of regulators kg 5.8 Mass of transport kg 6. Oil

6.1 Quantity of oil required to fill regulator to cold oil level of 15oC

6.2 Brand or trade name and grade of oil litre 7. Make and type of bushing

7.1 Manufacture 7.2 Catalogue number 7.3 Material 7.4 Current rating 8. Minimum clearance between live metal

parts for bushings

8.1 Phase to phase between: S bushing to L bushing mm L bushing to SL bushing mm S bushing to SL bushing mm

8.2 Phase to earth from S bushing mm L bushing mm SL bushing mm




23. Attachment 3 – Plant Details…(Cont’d)

REF PARTICULARS UNITS ITEM 1 ITEM 2 ITEM 3 9. Brand or trade name and grade of core

steel upon which guarantees in Attachment 1 are based

10. Series resistance 10.1 -10% tap % 10.2 Principal tap % 10.3 +10% tap % 11. Series reactance

11.1 -10% tap % 11.2 Principal tap % 11.3 +10% tap % 12. Zero phase sequence impedance voltage

in accordance with Clause 3.7 of AS 2374, Part 1

13. Material thickness of insulating covering wire

13.1 Main winding 13.2 Tapping winding 14. Number of turns per leg

14.1 Principal tap 15. Shape and sectional area of copper in

winding

15.1 Main winding 15.2 Tapping winding 16. Length of mean turn

16.1 Main winding mm 16.2 Tapping winding mm 17. Type of coils

17.1 Main winding 17.2 Tapping winding 18. Nett section of core mm2 19. Window

19.1 Length mm 19.2 Breadth mm

20. Type of core clamping 21. Type of tank 22. Thickness of tank walls mm 23. Test pressure to determine whether tank,

etc. is oil tight kPa

24. Safe vacuum which may be applied to: 24.1 Main unit empty of oil and isolated from

radiators kPa

24.2 Radiator banks kPa 24.3 Separate tap changer compartments kPa 25. Material of regulator 25.1 Tank 25.2 Cooling fins 25.3 Lid




25.4 Control box





25.5 Auxiliary box (if applicable) 26. Diameter and thickness of cooling

tubes/fins (radiators) mm

27. Type of automatic tap changing mechanism

27.1 Makers name 27.2 Type no. 27.3 Brief description 28. Make of valves 28.1 Manufacturer 28.2 Type 29. Time taken to change from one tapping to

the next (closing of voltage relay contacts to completion of tap change)

30. Diverter contacts provided YES/NO 31. Drop tank employed YES/NO 32. Type and description of static control unit 33. Is external LV supply required for normal

operation of the regulator YES/NO

34. Method of protection windings against ingress of moisture during transport

35. Type of surge suppression device for series winding

36. Are the surge suppression devices for series winding mounted internally or externally? (preference shall be given to external mounting)

37. Is the tank with a pressure relief device? YES/NO 38. Length of cable between regulators and

control box m

39. Mean time between failures of control unit

Months

40. Dielectric test value of oil for continued services

kV (no break)

41. Are lifting arrangements in accordance with Clause 5.2.2.2

YES/NO

42. Mounting details 42.1 Do mounting holes of regulator tank

hanger pads suit holes shown in Drawing NoA3 872319-01

YES/NO

42.2 Do fixing holes for control box suit mounting holes shown in Drawing No. A4 872551-01

YES/NO

43. Number of methods of determining correctly the neutral tap position (excluding the “long horn” and manual counting methods)

SIGNATURE OF TENDERER: ________________________________________________




24. Attachment 3 – Plant Details


1. Makers name

2. Country of manufacture

3. Type of regulator

4. Overall dimensions 4.1 Extreme height from floor level mm 4.2 Extreme projection floor level mmxmm 4.3 Minimum height to crane hook for

removal of core and coils out of tank including allowances for slings

4.4 Maximum dimensions for transport • Height • Length • Breadth

5. Masses 5.1 Mass of regulator complete with all

accessory equipment and filled with oil kg

5.2 Mass of regulator core and windings only kg 5.3 Total mass of copper in main winding kg 5.4 Total mass of copper in stabilising

(winding kg

5.5 Mass of active iron in core kg 5.6 Mass of tank kg 5.7 Mass of regulators kg 5.8 Mass of transport kg 6. Oil

6.1 Quantity of oil required to fill regulator to cold oil level of 15oC

6.2 Brand or trade name and grade of oil litre 7. Make and type of bushing

7.1 Manufacture 7.2 Catalogue number 7.3 Material 7.4 Current rating 8. Minimum clearance between live metal

parts for bushings

8.1 Phase to phase between: S bushing to L bushing mm L bushing to SL bushing mm S bushing to SL bushing mm

8.2 Phase to earth from S bushing mm L bushing mm SL bushing mm




25. Attachment 3 – Plant Details…(Cont’d)

REF PARTICULARS UNITS ITEM 1 ITEM 2 ITEM 3 9. Brand or trade name and grade of core steel

upon which guarantees in Attachment 1 are based

10. Series resistance 10.1 -10% tap % 10.2 Principal tap % 10.3 +10% tap % 11. Series reactance

11.1 -10% tap % 11.2 Principal tap % 11.3 +10% tap % 12. Zero phase sequence impedance voltage in

accordance with Clause 3.7 of AS 2374, Part 1

13. Material thickness of insulating covering wire 13.1 Main winding 13.2 Tapping winding 14. Number of turns per leg

14.1 Principal tap 15. Shape and sectional area of copper in winding

15.1 Main winding 15.2 Tapping winding 16. Length of mean turn

16.1 Main winding mm 16.2 Tapping winding mm 17. Type of coils

17.1 Main winding 17.2 Tapping winding 18. Nett section of core mm2 19. Window

19.1 Length mm 19.2 Breadth mm

20. Type of core clamping 21. Type of tank 22. Thickness of tank walls mm 23. Test pressure to determine whether tank,

etc. is oil tight kPa

24. Safe vacuum which may be applied to: 24.1 Main unit empty of oil and isolated from

radiators kPa

24.2 Radiator banks kPa 24.3 Separate tap changer compartments kPa 25. Material of regulator 25.1 Tank 25.2 Cooling fins 25.3 Lid




REF PARTICULARS UNITS ITEM 1 ITEM 2 ITEM 3 25.4 Control box 25.5 Auxiliary box (if applicable) 26. Diameter and thickness of cooling tubes/fins

(radiators) mm

27. Type of automatic tap changing mechanism 27.1 Makers name 27.2 Type no. 27.3 Brief description 28. Make of valves 28.1 Manufacturer 28.2 Type 29. Time taken to change from one tapping to the

next (closing of voltage relay contacts to completion of tap change)

30. Diverter contacts provided

YES/NO

31. Drop tank employed YES/NO 32. Type and description of static control unit 33. Is external LV supply required for normal

operation of the regulator YES/NO

34. Method of protection windings against ingress of moisture during transport

35. Type of surge suppression device for series winding

36. Are the surge suppression devices for series winding mounted internally or externally? (preference shall be given to external mounting)

37. Is the tank with a pressure relief device?

YES/NO

38. Length of cable between regulators and control box

m

39. Mean time between failures of control unit Months 40. Dielectric test value of oil for continued

services kV (no

break

41. Are lifting arrangements in accordance with Clause 5.2.2.2

YES/NO

42. Mounting details 42.1 Do mounting holes of regulator tank hanger

pads suit holes shown in Drawing NoA3 872319-01

YES/NO

42.2 Do fixing holes for control box suit mounting holes shown in Drawing No. A4 872551-01

YES/NO

43. Number of methods of determining correctly the neutral tap position (excluding the “long horn” and manual counting methods)

SIGNATURE OF TENDERER: ________________________________________________




26. Attachment 4 – Recommended Spares, Special Tools and Options

Tenderers shall advise prices to supply the following spares:

DESCRIPTION EX-STOCK AUSTRALIA

PRICE EACH $ AUST

Component board Line drop compensator board Modifications for reverse power flow compatibility

Other recommended spares and special tools

Tenders shall advise the additional price per unit to seal and provide a pressure relief device to relieve excess pressure in the event of an internal fault if the standard product is not the sealed type. Item No Item 1 Item 2 Item 3 Item 4 Item 5 Item 6 Price per Unit (A$)

Tenders shall advise price for additional features recommended by the Tenderer to be purchased. Description Price Per unit (A$) a) Item 1 Item 2 Item 3 Item 4 Item 5 Item 6 b) c) d) e)




27. Attachment 4 – Technical Document Checklist

This schedule detail parameters referred to within the body of the specification for which a response by suppliers is requested. This schedule shall be completed and submitted with the offer.

PARTICULARS

CLAUSE ANSWER

(Yes/No)

Can the tapping range be varied to 15% raise and 5% lower from the standard range specified.

5.1.4

Time required to change from one tapping position to the next stated in tender documentation

5.1.4

Detailed drawing showing the position of the lifting lug included in tender documentation.

5.2.2.2

Maximum locked rotor current withstand period for the tap-changing motor stated in tender document.

5.2.4.1

Documentation to substantiate the reliability and soundness of the TPI design included in the tender.

5.2.4.4

Comments on the ability of the offered equipment to determine the neutral tap position by means of a potential detecting device provided

5.2.4.4

Full details of the control panel, the method of operation and component settings and ranges provided with tender documentation.

5.2.6.2

Sufficient details to allow evaluation of the protective coating offered provided with tender

5.2.10.3

Relevant Safety Data Sheets provided 5.2.14 Type test reports. 6.3 Completed Risk Assessment Attachment 5. 7 QA Certificates and Capability Statement 8

Service History Details. 11 Comments on reliability and performance. 12.1 and

12.2

Availability of training material 13 Comments on environmental soundness of the design and the ability to recycle components at the end of service life.

14

Completed Attachments 2 , 4 and 5 15 SIGNATURE OF TENDERER: __________________________________________




28. Attachment 5 – Risk Assessment

This schedule details the risk assessment parameters to be provided by the Tenderer for items covered by this specification. This schedule shall be completed and submitted with the offer. The Tenderer shall complete the relevant items (as applicable): REF. PARTICULARS RESPONSE 1. Have Risk Assessments been carried out on equipment

tendered which meet the requirements of AS 4360 (Yes/No)

2. Have copies of such risk assessments been included with the tender (Yes/No)

3. What is the weight of the components to be moved (for example – cable box covers/drawout circuit breaker trucks)?

4. How often do the components have to be moved ? 5. 5.1 5.2 5.3

Are space restrictions associated with: Manual/materials handling tasks Installation/maintenance Operating procedures ?

6. Is there provision for the use of mechanical lifting devices? 7. Is the load stable? 8. What is the level of coupling? (poor/fair/good) (eg. Are

operating handles fitted with grips)

9. 9.1 9.2

What are the push/pull/rotational forces required to operate the equipment: When new? During life expectancy?

10. Do “above “ground” work surface have adequate fall protection (eg. Slip resistant surface, hand rails)?

11. 11.1 11.2 11.3

Do the work positions require undesirable postures such as: Bending Stretching Twisting

12. What postures are required to be sustained over what period of time?

13. What movements are repetitive and for what duration? 14. What are the sound pressure levels (expressed in dB(A))? 18. What are the expected hazardous changes/by-products

associated with the deterioration of a substance?




REF. PARTICULARS RESPONSE 19. Is there any possible contact with energised components? 20. What are the levels of radiation emitted? 21. When in service, are any normally accessible areas

hot/cold enough to be a hazard?

22. Are there any biological hazards? 23. Are there any mechanical hazards (eg. Nip in points,

exposed moving components)?

24. Are mechanical hazards appropriately controlled (eg. guarding, lockouts)?

25. Are load limits established and clearly identified? 26. Are gauges clearly visible and easily interpreted? 27. Are control movements consistent with established

Australian conventions (eg switch “UP” position is “OFF”)?

28. What is the degree of whole body or hand/arm vibration (Hz)

29. Are projectiles generated? 30 Are special tools required/identified/supplied? 31. What are the hazards associated with equipment failure?

SIGNATURE OF TENDERER: __________________________________________




29. Attachment 6 – Drawings




30. Attachment 7 – Name Plate Details

The successful Tenderer shall complete the following spreadsheets and return to the Purchaser by electronic mail to: [email protected] with each delivery as applicable.

Voltage Regulators Nameplate Details.xls

NAME OF TENDERER: ADDRESS OF TENDERER: SIGNATURE: FOR AND ON BEHALF OF TENDERER DATE: ______________________

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