REPAIR TO HT EXTERNAL ELECTRIC INSTALLATION, UG ELECTRIC SUPPLY LINE, DISTRIBUTION TRANSFORMER AND ALLIED SERVICE UNDER GE NARANGI

M&L in repair for Filtration and dehydration of transformer oil of distribution transformers indoor/outdoor type of 11/0.433 KV, 63 kVA to 500 kVA and Power transformer of 33/11 kV, 2.5 MVA minimum three cycle to achieve di electric strength of 40 kV for 1 minute at 2.5 mm gap as per relevant IS with portable filtration plant, testing of the oil break down voltage before filtration and after filtration complete all as specified and directed. Note: (i) Centrifuging Machine with all T&P & testing machine of oil required for dehydration is arrange by contracter. (ii) Oil required for topping up the transformer will be measured & paid separatly.

Supply, replacement and topping up transformer oil HV grade as per IS 335 of 1993 Part II having dielectric strength of not less than 40 KV in the transformer at various locations complete all as specified and directed.

M&L for taking out old unserviceable defective HV bushings on site from outdoor/indoor type distribution transformers of 11/0.433 kV and 63 KVA to 500 kVA and Supply and fix porcelain bushing with heat resistant gasket complete all as specified and directed.

M&L for taking out old unserviceable defective LV bushings on site from outdoor/indoor type distribution transformers of 11/0.433 kV and 63 KVA to 160 kVA and Supply and fix porcelain bushing with heat resistant gasket complete all as specified and directed.

M&L for taking out old unserviceable defective LV bushings on site from outdoor/indoor type distribution transformers of 11/0.433 kV and 200 KVA to 500 kVA and Supply and fix porcelain bushing with heat resistant gasket complete all as specified and directed..

Supply and fix in repairs brass terminal stud, both end threaded complete with double nuts & washers including distance piece both sides and heat resistance gasket suitable for HV side 11000 volts grade for 63 KVA to 500 KVA capacity of outdoor/indoor type transformer complete all as specified and directed.

Supply and fix in repairs brass terminal stud both end threaded complete with double nuts & washers including distance piece both sides and heat resistance gasket suitable for LV side 415 volts grade for 63 KVA to 160 KVA capacity of outdoor/indoor type transformer complete all as specified and directed.

Supply and fix in repairs brass terminal stud both end threaded complete with double nuts & washers including distance piece both sides and heat resistance gasket suitable for LV side 415 volts grade for 200 KVA to 500 KVA capacity of outdoor/indoor type transformer complete all as specified and directed.

M&L for servicing/overhauling, Calibration and decorbonising of 11 kV (panel with breaker + Relay ) and setting of Relay parameters VCB of capacity 630 Amps, indoor type , taking shut down from MRS and disconnecting incoming & out going cables, control cables from VCB and replacement of un-serviceable spares, greasing of revolving assembly in VCB chamber, spring charging mechanism including decorbonising the VCB panel and check servicability complete all as specified and directed. Note:- (i) Spare parts/components required for replacement of above shall be measured and paid separately. (ii) Unit rate quoted against this item shall also include labour required for fixing of replaced items. (iii) For item No. 10 to 29 fixing charge of items are considered in item no. 9.

Supply & replacement, calibrating, testing, commissioning of Micro processor feeder protection relay, range - 0.01In – 8In, protection setting- 2 set, protecting circuit correct – 1Amps & 5Amps sets, records history- 5Nos, Min 6 Analog out put, with following protections feeder protection 50/ 51N (3 Phase current), 50/ 51N (Earth Over current), 67 P (3 Phase directional Over current), 6/N (Earth fault directional over current), 51V (Voltage controlled over current) 37 (3 phase under current), 46(Negative phase sequence over current), 59N (Residual over voltage), 49 (Thermal over load), 79(Auto reclose), 50BF( Circuit breaker failure detection), Cold Load pickup, Inrush blocking, Relay will be on MODBUS protocol with LCD display, trip, circuit healthy, alarm, other assignable indication,Auxlary suppy : 110V DC, complete all as specified and directed.