SPL REPAIR OF TRANSFORMERS AND VOLTAGE STABILIZERS AGAINST BER EQUIPMENTS AT DIFFERENT LOCATIONS AND SPL REPAIR OF HT OVERHEAD ACSR CONDUCTOR 11 KV LINE IN THE AOR OF AGE E/M UNDER GE 969 EWS

Supply, Installation, Commissioning and testing of transformer of capacity 63 KVA step down outdoor type level-2 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 side and having tapping at (+) 2.5%, (+) 5%, (+) 7.5% to be changed by hand operated OFF LOAD top changing gear. 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 03 Nos porcelain bushing with bushing rods and nuts washers and cable glands suitable for XLPE cable 3 Core 95 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 95 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 di electric strength.

Supply, Installation, Commissioning of transformer of capacity 160 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 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.

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 95 sq mm complete all as specified and directed.

Supply, laying and 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.

Supply, laying and 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.

Excavation in trenches not exceeding 1.5 metre wide and not exceeding 1.5 metre in depth, for foundations, laying of pipes etc. not exceeding 10sqm on plan for manholes etc. and getting out in soft/loose soil, complete all as specified and directed.

Returning, filling in, including spreading, levelling watering and well ramming in layers not exc 25cm in any type of soil, complete all as specified and directed.

Removing excavated material not exceeding 50mtr and depositing where directed at a level not exc 1.5 mtr above the starting point complete all as specified and directed.

Supply and laying of burnt clay building bricks, sub-class B (old size) Designation 75 laid flat in tranches for cable protection with width equal to length of brick, complete all as specified and directed

M&L for dry sand cushioning the underground electric cable on layer of 8 cm thick before laying the cable and second layer of 15cm thick after laying the cable all as specified in clause 19.75 of MES schedule Part-I, complete all as specified and directed. Note:-Only fine sand as specified by Engr-in-Charge shall be used.