8351 MAINTENANCE AND B CHECKS TO CAPTIVE HT DG SETS / STANDBY LT DG SETS OF CAPACITY 25 KVA TO 750 KVA AND REPLACEMENT OF DEFECTIVE SPARES AT NSTL TECHNICAL AREA UNDER AGE (I) RnD NSTL, VISAKHAPATNAM

Amount

M&L for carrying out 'B'check for 600 KVA 440V LT DG set of make: Cummins, Model VTA-28-63-I as per manufacture's recommendation / particular specification including replacement of necessary spares and replacement of filters such as fuel filter, SLO by-pass filter and lub oil filter complete sets along with rectification of minor defects, and cleaning of air filters/breather, coolant tank with blower and labour for filling/topping up and replacement of Engine oil/coolant and tuning of engine for DG set all as specified and directed. (Note: (i) Rate quoted shall be deemed to be included for cost of distilled water for batteries and minor accessories such as nuts and bolts, 'O' rings etc. (ii) Supply only Engine oil and coolant shall be measured and paid separately.)

All as per item No 1 herein before but for 500 KVA 440V LT DG set of Make: Greaves Cotton, Model TBD41V12500/ Make: Cummins, Model KTA-19-69

All as per item No 1 herein before but for 250 KVA 440V LT DG set of Make: HWM/RUSTON

All as per item No 1 herein before but for 125 KVA 440V LT DG set of Make: Kirloskar/Cummins Model NT 495G/ Make: Cummins Model

All as per item No 1 herein before but for 62.5 KVA 440V LT DG set of Make: Kirloskar/Cummins Model

All as per item No 1 herein before but for 25 KVA 440V LT DG set of Make: Kirloskar/Cummins Model

All as per item No 1 herein before but for 750 KVA HT 11 KV DG set of Make: Kirloskar/Cummins

M&L for cleaning the radiator intercooler of LT DG set 600 KVA, 440 Volts by checking and removing the deposited dust, oil welt and carbons and cleaning with forced water with cleaning agents and testing for leaks at inter connectors/couplers/flexible connectors/flexi clamps and making necessary minor repairs to arrest leakages of coolant all as directed by Engineer-in-Charge

All as per item No 7 herein before but LT DG set 500 KVA, 440 Volts.

All as per item No 7 herein before but LT DG set 250 KVA, 440 Volts.

All as per item No 7 herein before but LT DG set 125 KVA, 440 Volts.

All as per item No 7 herein before but LT DG set 62.5 KVA, 440 Volts.

All as per item No 7 herein before but LT DG set 25 KVA, 440 Volts.

All as per item No 7 herein before but HT DG set 750 KVA, 11 KV.

Supply only Engine oil. (Make: Servo/Valvoline/Castrol)

Supply only the coolant for Cummins make diesel engines. (Cat No. 3167217 fo Cummins/Fleet guard or any other approved make as per OEM)

Supply only K-cool super plus engine coolant for Kirloskar make diesel engines

M&L for carrying out repairs to defective auxiliary power system (Battery charger) of installed capacity 110 Volts, 100Ah boost/trickle charger by complete replacement of defective diodes, PCB/electronic cards, contactors, auxiliary coils and DC MCB DP of 15A capacity-02 No's complete all as specified and as directed.

Supply and replacement of stop solenoid/shut off valve(Part No 3017993) for cummins KTA 19G 500KVA/ 600KVA DG set along with screen filter including wiring, connecting to panel circuit, starting and testing on load complete all as specified and as directed.

M&L for carrying out repairs/servicing of starter solenoid switch capacity 12/24 Volt connected to the DG set of various capacity including replacement of defective parts, rewinding of coil complete all as specified and as directed.

M&L for complete cleaning of the 11 KV 750 KVA DG set silencer/mufflers (2nos oer DG set) located at a height of above 10m and replacing the corroded portion of 150mm dia MS pipe/ flanges by fabrication and welding and applying two coats of heat resistant synthetic enamel paint over a coat of red oxide complete all as directed.

M&L for removing oil/greases deposits, oil/paint/corrosion flakes and cleaning the external surface of 500/600 KVA DG set using wire brushes, coarse cloth, cleaning agents etc.and applying two coats of heat retardant paint of approved tint by spray application complete including necessary T&P like spray gun, air compressor etc. all as specified and as directed.

All as per item No 26 herein before but for 11 KV 750 KVA DG set with 1500 Ltr Fuel tank and connected LT/HT control panels

M&L for carrying out repairs to self starter 24V/12V by replacement of carbon brushes, solenoid, bearings and reassembling the same and testing complete all as specified and as directed

M&L for carrying out repairs to 12/24 volts Alternator/dynamo by replacement of carbon brushes, electronic regulator/ rectifies, bearings reassembling the same and testing complete all as directed

Supply and fix controller, Contactors and MCB for AMF panel of DG set of capacity 25 KVA to 250 KVA with necessary modification to control wiring, replacement of control relays etc complete all as directed.

Supply and replace belt tensioner along with ribbed belts for 125 KVA 440V LT DG set (Make: Kirloskar/Cummins Model NT 495 G/ Cummins 6BTAA-6963/ Kirloskar-KG 22 4H)

M&L for complete checking the controller of DG set 500 KVA, 3 phase 440 Volts (Make: Greaves Cotton Ltd., Model: TBD 41V12500) along with wiring, checking and rectifying the defects, rectifying the set complete with all sensors and protections and making the DG set operational for switching ON and Off through controller with safety features all as directed.

M&L for complete replacement of lubrication hoses, fuel hoses for DG set 750 KVA, 11 KV (Make: Kirloskar Cummins, Model: KTA-2300-G) complete with all accessories, O rings and connectors all as directed.

Supply and replace V belts for radiator fan/ main shaft/ cam shaft for the DG set of capacity 125 KVA-250KVa as per existing size and model complete all as directed

Supply and replace V belts for radiator fan/ main shaft/ cam shaft for the DG set of capacity 500 Kva- 750 KVA as per existing size and model complete all as directed.

Supply and Fix lead acid battery 24 V 200Ah complete (Initially charged) and connected to DG sets complete all as directed [Make: Exide/ SF/ Amaron/HBL]

Supply and fix Fan(TDV12) 36"DIA, Plastic, Part No 623404010154 and removal and refitment of Exhaust Manifold to arrest Exhaust Leaks of 500KVA Greaves Cotton DG set

Supply only Air cleaner of existing size suitable for HT DG set 750 KVA, 11 KV of Make: Kirloskar/Cummins.

All as per item No 34 herein before but for 600 KVA 440V LT DG set of make: Cummins, Model VTA-28-63-I

All as per item No 34 herein before but for 500 KVA 440V LT DG set of Make: Greaves Cotton, Model TBD41V12500/ Make: Cummins, Model KTA-19-69

All as per item No 1 herein before but for 250 KVA 440V LT DG set of Make: HWM/RUSTON

All as per item No 1 herein before but for 125 KVA 440V LT DG set of Make: Kirloskar/Cummins Model NT 495G/ Make: Cummins Model

All as per item No 1 herein before but for 62.5 KVA 440V LT DG set of Make: Kirloskar/Cummins Model

All as per item No 1 herein before but for 25 KVA 440V LT DG set of Make: Kirloskar/Cummins Model

Supply & Fix Diode for 750 KVA DG set Alternator

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