WBPWD/EE/CED/NIQ- 15/2016-17(2ndcall)

Amount

Supply and delivery of 12KV 630A 25kA horizontal draw out type 1 panel VCB with motorised spring charged mechanism suitable for 220 VAC, closing & tripping coils rated 110VDC (Make- Pascal / Biecco).

MOVING PORTION: 12KV 630A 25kA horizontal draw out type VCB - 1 No. Vaccum interrupter -1No. Mechanical ON / OFF indicator (Make- Pascal) - 1No Aux. Switch 4NO+ 4NC - 1 Seto).

PANEL, BUSBAR, CT AND PT DETAILS: Fully compartmentalised sheet steel totally enclosed floor mounted with safety shutters, horizontal drawout & horizontal isolation along with insulated PVC sleeve for 630A copper bubsra, foundation bolts, etc. With provision for termination XLPE cable, insulation level 28/75KV.

Epoxy cast duel core CTs having CT ratio 50-25 /5+5 with core 1:15VA class - 1.0, core 2: 15VA class - 5P10 and STC 18.6kA for 1 sec.

3 phase 3 limb drawout type line PT-11KV/TR3/110V/RT3, Cl-1, 100VA with fuses for primary and secondary circuit.

BREAKER PANEL INDICATION LAMPS: ON / OFF / TRIP / SP, CH / TCH.(ii) 'R' 'Y' 'B' fase indication.(iii) Push botton for TC healthy.

SWITCHES AND OTHER ACCESSORIES: (i)Panel space heater with thermostat(ii)cubical illuminating lampT-N-C switch(iii)Motor ON / OFF switch. (iv)Heater ON / OFF switch.(v)Anti puming relay.(v)HRC control switch and link as per scheme (vi)110V DC hooter for trip, non trip alarm..

RELAYS:(i)Electromechanical relay CDG31(ii) Aux. Relay for transformer protection (BCH,OTI,WTI alarm and trip) type - VAA23.(iii)Master trip relay, type - VAJH13.(vi)Annuaciator - 6 Windows

OTHERS ITEMS:power pack, input : 110V AC, Output : 110V DC, 3 Ph 4W, Burden :300VA.

Installation, testing and commissioning of 1 panel, cubical type H.T. switch gear with -PT incl. carriage within a lead of 30 mtr. by placing in position, assembling, lining up, levelling and fixing on floor, fitting & checking all instruments, relays correctly set according to requirement.

Supply & fixing 6mm thick MS Chequered plate on the fabircated 50x50xx6mm MS angle & 50x6mm MS flat stiffner grouted in the trench top as rqd

Earth Work excavation of foundation trenches or drains in all sorts of soil (including mixedsoil but excluding laterite or sanstone) including ramming soreading or staking the spoils within a lead of 75 m as directed .The item includes necessary firming the sides of trenchs,laveling dressing & ramming the bottom boiling out water as required complete of excavation not eceeding 1500mm

Dismanting all typed pf plain cement concrete work,stacking serviceable materials at site removing rubbish as directed with a leas 75m

Ordinary cement concrete (mix124) with river bazaree excluding shuttering & reinforcementif any

Brick work with 1st class bricks in cement of any dia including stacking

Plaster (to wall,floor,ceiling etc) with sand and cement mortar including rounding off or chamfering corners with 16cement mortar in 20mm thick plaster

CENTRAL ELECTRIC CO.

ELECTROLITE