SPL REPAIR OF TRANSFORMER AND VOLTAGE STABILIZER AGAINST BER EQPT AT DIFFERENT LOCATIONS, REPLACEMENT OF 02X HP CENTRIFUGAL PUMP SET WITH ALLIED INFRA AGAINST BER EQPT AND PROVN OF 63 KVA TRANSFORMER WITH CONNECTED ACCESSORIES UNDER GE 969 EWS

Supply, installation, testing and commissioning of copper wound step-down distribution transformer, outdoor, floor mounted type, suitable for 11 kV / 433 V, 3 phase, 4 wire, 50 Hz AC system, of capacity 63 kVA , oil immersed, naturally cooled ONAN (Oil Natural Air Natural) type, complete with all standard accessories, fittings and mounting arrangements. The transformer shall conform to latest amendments of IS 1180 (Part-1):2014, BIS certified, and BEE 5-star rated (latest applicable notification). Transformer shall be suitable for outdoor operation under Indian climatic conditions. The transformer shall have: HV side: Delta connected LV side: Star connected with neutral brought out Vector group: DYN-11 Tapping: Off-load tap changer on HV side with taps of ±2.5%, ±5%, ±7.5% in steps of 2.5% Cooling: ONAN with radiators/cooling fins Technical requirements i. Winding: Electrolytic grade copper ii. Insulation: As per IS standards iii. Percentage impedance: As per IS 1180 iv. Losses: As per Energy Efficiency Level-2 / latest BEE norms v. Temperature rise limits: As per IS 1180 vi. Vector group: DYN-11 mandatory vii. Neutral brought out and suitable for solid earthing Accessories & fittings i. Cable end box on HV side suitable for 95 Sqmm 3 core (11000 Volts) size XLPE cable.

Supply, Installation, Commissioning of transformer of capacity 200 KVA step down outdoor type Copper Wounded ONAN Cooling 11/0.433 KV (at no load) AC 3 Phase 50 Hz on secondary side double wounded oil immersed naturally all air cooled with external tubes/radiator, delta connected as on primary and star connected with neutral brought on secondary. The maximum temperature rise should not exceed 45 degree centigrade in oil and 50 degree centigrade in HV/LV winding when measured by the resistance method after continuous full load run in ambient temperature the transformer shall confirming to IS 2026, 1997 and comprising of following accessories :- (a) 01 No Cable end box on HV side consisting of with 03 Nos porcelain bushing with bushing rods and nuts washers and cable glands suitable for XLPE cable 3 Core 120 Sqmm including cable joint complete adopter box (b) 01 No cable end box on LV secondary side consisting of 04 Nos porcelain bushing with bushing rods and nuts washers and cable glands suitable for XLPE cable 3.5 Core 185 Sqmm including cable joint complete adopter box (c) Oil conservator with filter type drain valve and oil level gauge. (d) Dehydrating breather with first filling of dehydrating agent. (e) Explosive vent. (f) Thermometer Pocket. (g) Two earthing terminal on tank body to facilitate fixing of 32x6mm GI Strip. (h) One No thermometer dial type vapour pressure type having range 0-120 degree centigrade with maximum temperature indicator and re-setting device to maximum temperature including needle of temperature gauge max reading panted terminal. (j) Rating plate with terminal plate. (k) Oil drain filter valve. (l) Oil filling hole on top cover with plug. (m) Air release valve/plug. (n) 4 Nos plain solid cast steel detachable rollers. (o) Extra bushing for neutral out side the cable box providing independent earthing for neutral. (p) First fill of transformer oil confirming to relevant IS and tested upto 60KV dielectric strength.

All as per item No. 2 here in before but transformer of 100 KVA capacity.

Supply, laying & testing cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 11000 Volts grade with stranded aluminium conductor, of size 95 sq mm 3 core, complete all as specified and directed by Engr-in-charge.

Supply, laying & testing cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor, of size 95 sq mm 3.5 core, complete all as specified and directed by Engr-in-charge.

Supply, laying & testing cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor, of size 70 sq mm 3.5 core, complete all as specified and directed by Engr-in-charge.

Excavation in trenches in hard/dense soil not exceeding 1.5 mtr in width and not exceeding 1.5 mtr in depth for laying of cables up to proper level and for foundation, complete all as specified and directed by Engr-in-charge.

Returning, filling in including spreading, levelling, watering and well ramming in layers not exc 25 cm in hard/dense soil complete all as specified and directed by Engr-in-charge.

Removing surplus excavated material to a distance not exc 50 meter and depositing where directed at a level not exc 1.5 meter above the starting point complete all as specified and directed by Engr-in-charge.