AUGMENTATION OF ELECT SUPPLY OF BH UNDER GE (S) TEZPUR

Supply, Install, testing & commissioning, step down power transformer of capacity 5.0 MVA outdoor type 33/11 KV floor/platform mounting, 3 phase, 50 HZ,oil immersed with 'ONAN' type cooling with external cooling tubes/radiators, Delta/star connected, vector group DYN-11 double copper wound with auto mannual type OFF load tap changer in 05 Steps each of 2.5 % 4 step/ 5 positions on HV side to take care of voltage from +5 % to -5 % to give output on 11 KV secondary side. The transformer shall be complete with all standards fittings and accessories required as per latest specification, gauges, first fill of transformer oil etc confirmiing to IS-2026 and accessories. Transformer shall be BIS certified, type tested and low loss power transformer (loss shall not exceed 4 KW fixed loss & 21 KW load loss @ 75 degree celcius complete all as specified and directed. NOTE :- 1. Design / Drawing / BOM of the Transformer showing the dimensions is to be obtained from the OEM / Auth supplier and is to be got approved from GE before placing final order to the manufacturer. 2. Necessary PCC foundation / plinth shall be as per the recommendations of OEM and cost of the same is deemed to be included in the quoted rates. 3. The quoted rate shall be deemed to be inclusive of test at site as specified in the PS , all testing arrangements / equipments shall be made available by the contractor. 4. Anything missed out in the technical specifications but technically required for efficient working of the system is deemed to be included in the quoted rates. 5. Tech specifications enclosed in PS of tender documents.

M & L angle iron Cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primer coat, one under coat and one finishing coat of paint complete all as specified and directed.

Supply, installation, testing and commissioning of HT 33 KV, 3 Phase, 50 cycles totally enclosed metal clad VCB having rupturing capacity upto 350 MVA,out door type, overload and earth fault protection, ammeter, voltmeter and of rating upto 630 Amps, IP 55 protection with closing and tripping coil rated voltage 110 volt DC with all standard accessories of VCB as per IEC-62271-100 including remote control panel floor mounting type suitable for 33 KV VCB Switch gear with all control accessories made out of 2 mm thick CRCA sheet factory fabricated and powder coated paint The unit shall include all necessary standard fittings as required at site all as specified and as directed.

M & L Composite Polymer Lightning arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amp suitable for 33 KV (station class) to fix it on the Pole with continuity conductor upto earth terminal complete all as specified and directed.

Supply, fixing, connecting and testing 2 core current transformer (CT) 33 KV, outdoor type, oil immersed Single Phase, self cooled, hermatically sealed of ratio 200/5-5 Amps,class 0.5 / 5P 20, burden 15 VA with accuracy class 0.5 for metering equipment of CB and class 5 P20 for protection with air insulated CTs chamber mounted on and including CT junction box, necessary MS Channel/ angle iron complete all as specified and as directed.

Supply, fixing, connecting and testing Potential transformer of ratio 33 KV/rt3/110 V/rt3/110V/rt3, class of insulation- class A, accuracy class core I-0.5, core II-3P, 50 Hz outdoor type, single phase PT oil immersed and self cooled type having Burden core I- 100 VA, core II-100 VA , suitable for metering equipment of VCB installed on and including MS channel/angle iron pedestal type conforming to IS- 3156 complete all as specified and as directed.

Supply and fix HT 33 KV out door type gang operated air-break switch suitable for horizontal or vertical mounting fixed type complete with 9 insulators of rating upto 200 Amps

Supply, laying & testing cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty)with stranded aluminium conductor, 11000 volts grade, of size 3 core 185 sq mm complete all as specified and directed.

S & F cable jointing kit for 11 KV grade cable for indoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Al conductor cable of size 185 sqmm complete all as specified and directed.

S & F cable jointing kit for 11 KV grade cable for outdoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Al conductor cable of size 185 sqmm complete all as specified and directed.