REPLACEMENT OF OLD CURRENT TRANSFORMERS POTENTIAL TRANSFORMERS ISOLATORS AND CIRCUIT BREAKERS OF 22013233 KV GRID STATION GLADNI

Amount

Design, Engineering. Manufacture,workshop testing, supply including packing and forwarded, transportation, delivery at site storage charges of;-

MAIN EQUIPMENTS

CURRENT TRANSFORMER

Single phase, 50 c/s Current Transformers including first fill of transformer oil plus 10% extra and all accessories including terminal connectors/clamps, auxiliaries etc. complete in all respects as specified in the specification

ISOLATORS

145 kV, 50 c/s, 1600 Amps,31.5 kA for one second, AC Motor Operated horizontal double break, outdoor type isolators with all accessories including solid core post insulators, auxiliaries, marshalling boxes, terminal connectors/clamps, other essentials, complete in all respects as specified in the technical specification

3 pole without earth switches

3 pole with one earth switch

36 kV, 50 c/s, 2500 Amps, 25 kA for one second, Manually Operated horizontal double break, outdoor type isolators with all accessories including solid core post insulators, auxiliaries, marshalling boxes, terminal connectors/clamps, other essentials, complete in all respects as specified in the technical specification

3 pole without earth switch

POTENTIAL TRANSFORMER/ CAPACITIVE VOLTAGE TRANSFORMER

Single phase, 50 c/s Capacitive Voltage Transformers (for 132 KV level) and Potential Transformers (for 33 Kv level) including first fill of transformer oil plus 10% extra and all accessories including terminal connectors/clamps, auxiliaries etc. complete in all respects as specified in the specification

Single phase, 50 c/s 132 KV Capacitive Voltage Transformers (132/√3) KV/(110/√3)V , One min power freq withstand 275KVrms

Single phase, 50 c/s 33KV Voltage Transformers (33/√3) KV/(110/√3)V , One min power freq withstand 70 KVrms

SURGE ARRESTER

Single phase, 50 c/s, outdoor, metal oxide gapless type Surge Arresters including surge counters / monitors, insulating base and all associated accessories,terminal connectors / clamps, auxiliaries, complete in all respects as specified in the technical specification

120 kV (r.m.s)

VACCUM CIRCUIT BREAKER

3 Pole , Vaccum Circuit Breaker (outdoor) 2500 Amp with offered operating mechanism all accessories auxillaries including terminal connectors / Clamps and marshalling boxes/ kiosks, GI Flat (50 x 6 mm) required for equipment risers and earthing etc complete in all respects with spare Vaccum bottle and 1set of spare tripping & closing coils as specified in the technical specification.

36KV ,2500 Amps of 3 phase ,50 C/s and 25 KA(rms) for 3 sec

Handling, Storage, Preservation, Dismantling of old equipment and its carriage back to Divisional Stores, Erection (except Civil Works), Testing & Commissioning of new eqipments

MAIN EQUIPMENTS

CURRENT TRANSFORMER

Single phase, 50 c/s Current Transformers including first fill of transformer oil plus 10% extra and all accessories including terminal connectors/clamps, auxiliaries etc. complete in all respects as specified in the specification

ISOLATORS

145 kV, 50 c/s, 1600 Amps,31.5 kA for one second, AC Motor Operated horizontal double break, outdoor type isolators with all accessories including solid core post insulators, auxiliaries, marshalling boxes, terminal connectors/clamps, other essentials, complete in all respects as specified in the technical specification

3 pole without earth switches

3 pole with one earth switch

36 kV, 50 c/s, 2500 Amps, 25 kA for one second, Manually Operated horizontal double break, outdoor type isolators with all accessories including solid core post insulators, auxiliaries, marshalling boxes, terminal connectors/clamps, other essentials, complete in all respects as specified in the technical specification

3 pole without earth switch

POTENTIAL TRANSFORMER/ CAPACITIVE VOLTAGE TRANSFORMER

Single phase, 50 c/s Capacitive Voltage Transformers (for 132 KV level) and Potential Transformers (for 33 Kv level) including first fill of transformer oil plus 10% extra and all accessories including terminal connectors/clamps, auxiliaries etc. complete in all respects as specified in the specification

Single phase, 50 c/s 132 KV Capacitive Voltage Transformers (132/√3) KV/(110/√3)V , One min power freq withstand 275KVrms

Single phase, 50 c/s 33KV Voltage Transformers (33/√3) KV/(110/√3)V , One min power freq withstand 70 KVrms

SURGE ARRESTER

Single phase, 50 c/s, outdoor, metal oxide gapless type Surge Arresters including surge counters / monitors, insulating base and all associated accessories,terminal connectors / clamps, auxiliaries, complete in all respects as specified in the technical specification

120 kV (r.m.s)

VACCUM CIRCUIT BREAKER

3 Pole , Vaccum Circuit Breaker (outdoor) 2500 Amp with offered operating mechanism all accessories auxillaries including terminal connectors / Clamps and marshalling boxes/ kiosks, GI Flat (50 x 6 mm) required for equipment risers and earthing etc complete in all respects with spare Vaccum bottle and 1set of spare tripping & closing coils as specified in the technical specification.

36KV ,2500 Amps of 3 phase ,50 C/s and 25 KA(rms) for 3 sec

Preparation of civil and structural designs and construction drawings construction of new foundation for 33 KV VCB alongwith dismantling of the old foundation.

LAYING of OF FOUNDATION FOR 33 KV VCB (as per drawing)

Laying of VCB Foundation along with taking out of earthing risers and providing equipment earthing with GI flat 50 x 6 mm

DISMANTLING OF 33 KV OLD VCB FOUNDATION

VCB Foundation(old)