ELECTRICAL WORK

Amount

Work of erection and commissioning of 33 KV, 1x10 MVAR capacitor bank using crane or other suitable mins at 220 KV Sub station, Rukhi is to be carried out. The work involves the following as below :- Erection of main and auxilary structure in all respect including fabrication (if required) & shifting the all structure and their associated fittings from store of said place to work place at 220 KV S/S Rukhi.

Erection of 1x10 MVAR ABB make complete capacitor bank with all their accessories including its mounting and power connections upto section isolator with unit & complete jumpering with its reactor, NCT etc on already errected structure in SI. No. A including the shifting of equipment from store to work site at 220 KV S/S Rukhi.

Erection of following equipment on already structure given at SI No. A including shfiting of equipment from store to work site at 220 KV S/S Rukhi by using of crane or other sutable mins. 33 KV three phase PT on ALP type structure including fixing of their junction box.

33 KV Isolator on ABL type structure including their opearting box.

33 KV CT on ALP type structure.

33 KV NCT on ALP type structure/plinth

33 KV Single phase reactor on insulators.

33 KV Circuit Breaker.

36 KV 10 MVAR Capacitor Bank control & relay panel including shifting from store to control room at 220 KV Sub station Rukhi.

Laying of following control cable form control & realy panel to its circuit breaker, CT, NCT & PT through cable trench including removal of trench cover and cleaing & dressing as per cable shadule including clamping by aluminium strip as per norms. Making of holes on various equipment base plate and fixing the accurate size cable gland (supply by the contractor) and providing and fixing the mumbring tag on side of cable. making for termination including all internal connection at each equipment on both end with proper ferulling (supply by the contractor). Also replaced the trench cover after completion of cabling work. (i) 2x2.5 Sqr mm.

4x2.5 Sqr mm

6x2.5 Sqr mm

Interconnection & Termination of cable.

Earthing of structure and equipment by 50x6 mm MS flat involves cutting stacking, banding and laying 800 mm below the ground lavel & making the earthing of auxilary structure and all equipments including welding with main earth mate with object to be earhed. and back filling after completion of work.

Stringing and jumpering of various equipments with cutting, bending and fixing of various clamps with ACSR Zebra/Panther conductor including shifting conductor from store or said place at 220 KV S/S Rukhi (All material provided by the department). Stringing of 33 KV three phase main bus bar for capacitor bank having approx 14 meter span, including hoisting of 120 KN disc insulator and fitting of bolted type tension fitting satisactorily as per techncial specification.

33 KV Main bus to PT

36 KV Main bus to main bus isolator of capacitor bank.

36 KV Main bus isolator to CB.

36 KV CB to CT

36 KV CT to auxilary bus

Auxilary bus to section isoaltor

SHIVAM ENTERPRISES

Shiam and sons