SPECIFICATIONS OF Ni-Cd BATTERY BANK

Transcription

1 SPECIFICATIONS OF Ni-Cd BATTERY BANK ANNEXURE-Z Supply, Installation and commissioning of Ni-cd battery bank for high rate of discharge type KPH 125V 210 AH consisting of 103 number of cells. Detail technical specification is given below 1. IS/IEC CONFORMITY: Bank shall be supplied as per IS & IEC 623 with latest amendments. 2. SITE CONDITIONS: (a) Climate: Wet & Tropical (b) Temperature Range: 1.1 to +55 degree Celsius. (c) Electrical Ground Resistivity: Ohm Meter. (d) Relative Air Humidity: 100% Max (e) Site above MSL: Less than 1000 meters. (f) The atmosphere in the factory shall be laden with Urea dust. The air may contain Ammonia Vapors. 3. FEATURES: (a) The cells shall be vented type, assembled and end plastic container with covers. Covers shall be fitted with spray proof vent plugs. (b) All cell terminals shall be of adequate current carrying capacity. Cell terminal post shall be equipped with connector bolts. Cell terminal posts, Bolts and associated hardwares shall be electrolyte resisting material. (c) Electrolyte level indication lines for minimum and maximum levels shall be marked on maintenance access side of each jar or container. (d) Each battery shall be rated for specified ampere hours at five hours rate of discharge to end voltage of 1.00 volts per cell. (e) Nickel plated copper intercell connectors shall be used for connecting up adjacent cells and rows. Bolts, nuts and washers shall be nickel-plated steel/stainless steel. All terminals and cell inter-connectors shall be fully insulated or have insulation shrouds (f) Each cell shall be contained in close top container preferably transparent and unbreakable and shall incorporate positive and negative

2 plates and separators in position. Wooden separators shall not be acceptable. The cells shall be provided with inter cell connectors, Nut bolts along with two flat and one spring washer. Connector must be suitable to take full current and should be designed to withstand short circuit current also. Inter row, Inter Tier Connector and take off terminals shall be designed for rated current and shall also be able to withstand Short circuit current.. (g) The battery units shall be complete with all necessary components such as lids, plugs, separators and and buffers, inter cell connectors, cell insulators. (g) The required quantity of electrolyte plus 10% extra quantity complying relevant standards IS shall be supplied in suitable non returnable containers along with battery. 4. ACCESSORIES FOR MAINTENANCE You will supply the following accessories for maintenance along with main battery bank: (a) Syringe type hydrometer suitable for specific gravity readings 04 No s (b) Thermometer with specific gravity correction scale 02 No s (c) Cell Testing Voltmeter (3-0-3) complete with leads 02 No s (d) Insulated Spanners (For each type of battery) 02 sets (e) Rubber Syringe 02 No s (f) Funnel 02 No s (g) Jug 02 No s (h) Apron 02Nos (i) Rubber Gloves 02 sets (j) Teak Wood Stand For Hydrometers 02 Nos. 5. SPARES You will supply the following spares along with main battery bank: (a) Inter cell connectors- 10 No s (b) Vent plugs- 10 No s (c) Nuts & Bolts& Washers (2 flat and 1 Spring washer)- 10 Nos. 6. SPACE AVAILABLE FOR BATTERY STAND:

3 The battery bank being supplied by you has to be arranged in step type, three row stand with following limiting dimensions: Length: 2860mm, Width: 650mm, Height: 350mm approx.supply of battery stand shall be in party scope. 8. TEST 1.The Bidder shall have to submit along with offer, as pre-requisites, the complete Type test Reports of similar or higher rating battery bank, carried out within 5 years from the due date of Tender, from CPRI/NABL accredited/govt. recognized Test House failing which their offer may not be technically acceptable. 2. Guaranteed Test Particulars annexure 2 shall be duly filled and submitted along with offer. 2. Routine Test & Acceptance test certificates as per IS shall be furnished by the party along with the supply of material 3. Capacity test of the supplied battery bank shall be carried out by the party as per IS BUYBACK OF USED/UNSERVICEABLE BATTERIES Manufacturer shall buyback used/unserviceable batteries of similar rating from the substations where batteries are replaced. The bidder should quote their rates for buyback of old battery bank. 10. DOCUMENTS Documents, Test Certificates, Drawing etc. along with operational and maintenance Manuals, complete charging, initial charging, discharging procedure shall be supplied along with battery banks/ dispatch documents as per Annexure III.

4 TECHNICAL PARTICULARS TO BE FILLED BY PARTY Sr. No. 125 Volts, 210AH, 103 Cells Ni-Cd Battery Bank To be filled by party 1. Manufacturer Name 2. Country Of Manufacturer 3. Type Of Battery 4. Reference Standards For Construction and performance 5. No. of cells 6. Nominal Voltage Of Battery 7. Finishing rate of Charge (A) 8. Voltage per cell at the end of charge at the finishing rate 9. Voltage of each cell on complete discharge at 10 hour rate 10. Open circuit voltage of each cell on full charge (volts) 11. Internal Resistance Per cell (milli ohm per cell) 12. Minimum voltage per cell at which it can be operated at 20hour rate of discharge 13. Requirement of First Charge (Ampere Hour) 14. Discharge Capacity in Ampere Hour a) 5 Hour rate to 1.14 volts per cell b) 3 Hour rate to 1.10 volt per cell c) 1 Hour rate to 1.06 volt per cell d) 30 minutes discharge rate to 1 volt per cell e) 15 minutes discharge rate to 0.85 volt per cell f) 5 minutes discharge rate to 0.65 volt per cell

5 g) 1 minute discharge rate to 0.65 volt per cell 15. Guarantee efficiency on 10 hour rate in terms of watt hour 16. Type of positive plate per cell 17. No. of positive plates per cell 18. Type of negative plate per cell 19. No. of negative plates per cell 20. Size of positive plates (mm) 21. Size of negative plates (mm) 22. Fully charge specific gravity of electrolyte 23. Slow Charging Rate (A) 24. Quick Charging Rate (A) 25. Float Charging Voltage per cell (V/cell) 26. Size and material of connectors and method of connection between cells a) Inter cell (mm) b) Inter row c) Inter stand d) Take off e) Stud/Bolts, Nut and Washer 27. Type of Separators 28. Thickness of Separator (mm) 29. Material and Size of Container (mm) 30. Clearance between the bottom of plates and containers (mm) 31. Battery mild steel supporting rack dimensions(mm) 32. Amount and specific gravity of Electrolyte per cell required for first filling (litres/cell)

6 33. Weight of complete cell with Electrolyte(KG) 34. Type of Venting 35. Self Life 36. Expected Life a) For cyclic use(in terms of no. of charge/discharge) b) For use under float (trickle charge) 37. Operating Temperature Range 38. Type of cell arrangement

7 Documents to be submitted in different stage of Tender Sr No. DOCUMENTATION With the Quotation for approval After Order No. of Copies Final No. of Copies 1. General arrangement drawing showing the arrangement of the battery 2. Illustrative and descriptive technical literature 3. Installation, operation and Maintenance Manual Type Test Certificate Routine Test & Acceptance Test Certificates Guarantee Certificate Technical Particulars 1 3 NOTE: All final documents shall be furnished in superior quality files.