DEHYDRATION OF TRANSFORMER OIL, VCB SERVICING, CALIBERATION OF RELAY AND CONNECTED WORKS AT INA EZHIMALA

Amount

Material and Labour for filtration and dehydration of transformer oil using filtration plant and testing the die-electric strength of transformer oil and achieving the result of 60 kV and submitting the test report complete all as specified and as directed by Engineer in charge. Note: Provision of necessary stand by DG set required for the power supply for the machine where supply cannot be provided shall be the responsibility of the contractor. complete all as specified and directed by Engineer in charge.

Supply and topping up of transformer oil confirming to IS 335 in transformers and oil circuit breaker complete all as specified and as directed by Engineer in charge. Note :- Test certificate of the transformer oil from the manufacturer shall be produced.

Supply and fix in replacement of old unserviceable silica gel breather set up to 315 kVA transformer complete all as specified and as directed by Engineer in charge.

All as per item No.3 above but of capacity 315KVA to 750 KVA complete all as specified and as directed by Engineer in charge.

All as per item No.3 above but of capacity 1000KVA to 1600 KVA complete all as specified and as directed by Engineer in charge.

Material and Labour in replacement of old unserviceable silica gel of transformer breather complete all as specified and as directed by Engineer in charge.

Material and Labour for removal and replacement of burnt out defective HT copper coil of transformer of any capacity with new by rewinding with suitable gauge of super enameled copper wire of high quality matching with the existing impedance and insulated complete all as specified and as directed by Engineer in charge.

Material and Labour for removal and replacement of burnt out defective LT copper coil of transformer of any capacity with new by rewinding with suitable gauge of super enameled copper wire of high quality matching with the existing impedance and insulated complete all as specified and as directed by Engineer in charge.

Material and Labour for draining out of oil up to the bottom level of transformer and opening of HV and LV bushings of transformer capacity 11KV/433volt capacity upto 250KVA step down transformer of any make for replacing the all mounting gaskets of the transformer body and conservator to arrest the oil leakage and replacement of gasket HT/LT terminal bushing gasket/ bushing and rectifying oil leakage and making all connections complete all as specified and directed by Engineer in charge. Note: HT/LT Bushes, oil and brass rod shall be measured and paid separately.

All as per item No.9 above but of capacity 315KVA to 750 KVA complete all as specified and as directed by Engineer in charge.

All as per item No.9 above but of capacity 1000KVA to 1600 KVA complete all as specified and as directed by Engineer in charge.

Supply and fix in replacement of old unserviceable 11 KV HT terminal porcelain bushing suitable up to 250 KVA transformer including suitable brass stud as per site requirement complete all as specified and as directed by Engineer in charge.

All as per item No.12 above but of capacity 315KVA to 750 KVA complete all as specified and as directed by Engineer in charge.

All as per item No.12 above but of capacity 1000KVA to 1600 KVA complete all as specified and as directed by Engineer in charge.

Supply and fix in replacement of old unserviceable 11 KV/433V LT terminal porcelain bushing suitable up to 250 KVA transformer including suitable brass stud as per site requirement complete all as specified and as directed by Engineer in charge.

All as per item No.15 above but of capacity 315KVA to 750 KVA complete all as specified and as directed by Engineer in charge.

All as per item No.15 above but of capacity 1000KVA to 1600 KVA complete all as specified and as directed by Engineer in charge.

Supply and fix in replacement of 11KV /433V Transformer Diaphragm of capacity 1000KVA to 1600 KVA as per site requirement complete all as specified and as directed by Engineer in charge.

Supply and fix in replacement of 11KV /433V Transformer Expulsion fuse unit complete all as specified and directed by Engineer in charge.

Supply and fix in replacement of oil temp gauge for 11 KV 433V transformer up to 1600KVA as per site requirement complete all as specified and as directed by Engineer in charge.

Material and labour for handling, loading, unloading and transportation of unserviceable burnt out transformer of any capacity from the site by dismantling all the LT, HT connections, earthing and transporting to the nearest place directed by Engineer in Charge and refixing spare transformer of same capacity, transportation to the site, unloading and installation at site, testing complete all as specified and as directed by Engr-in-Charge. Note : Cost of T&P required for shifting of transformer shall be included in the quoted rate.

Material and labour for applying two coats of synthetic enamel paint by spray paint after preparation of the entire body of transformer by removing rust deposited completely, of transformer capacity up to 250 KVA and marking SM/MES No installed in substations complete all as specified and as directed by Engr-in-Charge.

All as per item No.22 above but of capacity 315KVA to 750 KVA complete all as specified and as directed by Engr-in-Charge.

All as per item No.22 above but of capacity 1000KVA to 1600 KVA complete all as specified and as directed by Engr-in-Charge.

Material and labour for Servicing /cleaning/ testing of HT 11KV VCB of Capacity upto 630Amp of any make and type, by taking proper shutdown & isolating the HT electric supply & taking out the trolley including servicing of all minor/ major parts of the VCB by cleaning isolating contact moving parts, removing dust particles, rust from the bus bar spout gear mechanism, repair to motor spring charge mechanism, including cleaning /greasing/ aligning of wheels and rails of trolley/ bus bar, tightening of all nuts bolts of entire trolley component and replacing minor spares such as tripping coil /closing coil/ worn out rack in rack out gears etc. all as directed by Engr-in-charge

Material and labour for general servicing to HT 11KV fuse failure relay/Aux relay complete all as specified and as directed by Eng- in -charge.

Material and labour for servicing/ testing/ calibration of HT 11KV relays ensuring of breaker tripping through relay by simulation CDG CDD complete all as specified and as directed by Engr in charge. Note: a) Test certificates shall be produced after testing/ calibration b) Cost of the T&P required for primary injection & secondary injection test etc are deemed to be included in the quoted amount.

Supply and fix in replacement of Indicator lamp LED type for CB on Red/Green/Amber/White/Blue 110V DC required as on site requirement complete all as specified and as directed by Engineer-in-Charge Make : L&T or equivalent

Supply and fix in replacement of spout for 11KV VCB and Bus bar side as on site carrying part complete all as specified and as directed by Engineer-in-Charge Make : CG/Areva or equivalent

Supply and fix in replacement of HT bus supporting insulator for HT 11KV VCB 630/400 Amps as per site requirement including taking down the existing insulator, complete all as specified and as directed by Engineer-in-Charge.

Supply and fix in replacement of HT 11KV VCB supporting insulator as per site requirement including taking down the existing old complete all as specified and as directed by Engineer-in-Charge.

Material and labour for preparation of surface of VCB panel by scrapping out old painted surface and applying one coat of red oxide primer and one coat of epoxy paint inside the HT panel complete all as specified and as directed by Engineer-in-Charge

Supply and fix in replacement of electronic hooter 110V DC in the HT 11KV panel by making necessary modification, complete all as specified and as directed by Engineer-in-Charge.

Supply and fix in replacement of digital Ammeter 0 to 400 Amps of existing size, flush type complete all as specified and as directed by Engineer-in-Charge. Make : Elmeasure/AE or Equivalent

Supply and fix in replacement of digital Frequency Meter of existing size, flush type as per site requirement complete all as specified and as directed by Engineer-in-Charge. Make : Elmeasure/AE or equivalent

Supply and fix in replacement of digital Power factor Meter of existing size, flush type as per site requirement complete all as specified and as directed. Make : Elmeasure/AE or equivalent

Supply and fix in replacement of digital Volt Meter 0 to 12000 Volts range of existing size, flush type complete all as specified and as directed. Make : Elmeasure/AE or equivalent

Supply and fix in replacement of panel heater(space heater) 80W, complete all as specified and as directed by Engineer-in-Charge

Supply and fix in replacement of vacuum bottle suitable for HT 11KV VCB as per site requirement suitable for 11 KV 630/400 Amp VCB complete all as specified and as directed by Engineer-in-Charge. Make : CG/Areva or equivalent .

Repair/replacement of PT 11 KV suitable to VCB 11 KV 600/400 Amps mounting on top draw, out type metering and protection ratio 11KV /110 volt/ /110/3 VA class LV1: 200/ 1.0,LV2:100/3P as per site requirement complete all as specified and as directed by Engineer-in-Charge Make : Areva/CG or equivalent.

Supply and fix in replacement of current transformer epoxy type up to ratio:- 400/200/100/5-5A suitable for 11 KV VCB 630/400 Amps capacity requirement. Burden Of CT shall be core 1:15 VA/1.0, core 2 : 15 VA5P10 complete all as specified and as directed by Engineer-in-Charge. Make : GE/AE/Areva or Equivalent

Supply and fix in replacement of Rubber beading for HT Panel complete by using proper binding materials all as specified and as directed by Engineer-in-Charge.

Material and labour for providing Louver of size of 15 cm X 10 cm or equivalent size as per site requirement in HT panel by making necessary modifications in the existing panel complete all as specified and as directed by Engineer-in-Charge.

Material and labour for cleaning of the HT 11 KV bus bar surfaces by removing the oxide formation around the bus bar and insulating the entire surface of bus bar using HT 11KV heat shrinkable sleeve complete all as specified and as directed by Engr-in-charge.

Supply and fix in replacement of aluminum strip suitable for 11KV HT Bus bar,VCB as per site requirement complete all as specified and as directed by Engr in charge.

Supply and fix in repair of control wiring for HT 11KV panel for complete relays and other connected items matching with existing gauge and colour code as per site requirements all as specified and as directed by Engr-in-charge.

Material and labour for servicing of On load Tap change mechanism including minor repairs complete by draining out oil completely and cleaning/aligning of all moving parts and joints of Tap change mechanism of transformer of capacity above 750 KVA, 11KV/433V by taking HT shutdown & opening the top plate of transformer, checking all bushes (HT and LT sides) and replacing worn-out parts of Tap change mechanism and testing calibration and commissioning complete all as specified and as directed by Engineer in charge.

Supply and fix in replacement of VCB 32 Pin plug set (male and female) required as on ground for HT 11KV panel VCB complete all as specified and as directed by Engineer-in-Charge.

Supply and fix in replacement of HT 11KV VCB Finger contact to connect between VCB and spout complete all as specifies and as directed by Engr-in-charge.

Material and labour for servicing using authorized service person for HT VCB/LBS in 11KV SF6 insulated outdoor type RMU of any make, off different modules by cleaning, applying grease and changing minor worn out spares such as nuts, bolts, gears etc and making smooth operation and replacing the relay batteries complete all as specified and as directed by Engr-in-charge.

Material and labour for earthing complete using copper plate 60 x 60 cm x 6 mm thick electrode buried directly in ground(earth pit not less than 2.25 mtr below normal ground level) with top edge of the plate not less than 1.5 mtrs below normal GL, connected to and including copper earth lead Strip of size 32 x 6 mm upto 7.5 m distance and connected by means of bolts,nuts,checknuts and washers of galvanized iron or steel all as shown in electrical plate No.3 in SSR connected to earthing test point all as specified complete with excavation, earth work in any strata, charcoal, salt , pcc chamber,20mm thick RCC cover (grade M 15) complete having suitable handle (10mm MS Rod) , 20 mm dia medium grade GI pipe for watering with GI funnel & wire mesh and 40mm bore GI pipe light grade for protection of earth lead conductor with testing and connecting up complete all as specified and directed by Engr-in-Charge.

Supply and fixing in repair copper strip 32 x 6mm with saddles and fixing screws etc. for earthing strip of transformer and LT panel complete all as directed by Engr in charge.

Schedule of Credit (Minus) Rs.58856.00 NOTE: Bidder shall insert credit amount of Rs. 58856.00 as rate in Green field under Col-5.

Benchmark Engineers and Contractors (BID ID -3307521)

eurekaenterprises (BID ID -3305475)