Repairing of Star delta starter, ACB, OCB Dabor Colliery under Salanpur Area

Amount

a) Repairing of 01 no. 550 volt Mine line make star delta starter at quarry pumping station.

Providing of Earth leakage with CBCT 2 pole(digital)

Providing of Thermal overload Relay 550 volt

Cost of Timer relay kit assembly

cost of C.T ratio 150/ 5, 200/5

Providing of single phase preventer 550 volt

Cost of P.T. 550 volt/110v, 12V, 8V

Labour cost

b) Repairing of 01 no.550V Kilburn make 100/5, ACB at mine substation.

Providing of Earth leakage with CBCT 2 pole (digital).

Providing of Thermal overload Relay 550 volt

Cost of P.T. 550 volt/110v, 12V, 8V

Cost of shunt tripe coil 550 volt with plunger

Labour cost

c) Repairing of 01 no. 3.3KV ECE make 100/5 OCB switch gear at main substation of Dabor colliery

Providing of Digital type Earth leakage relay with CBCT including 110 volts auxiliary wiring with test and reset facility

Providing of 110 volt Shuntrip coil complete set.

Providing of overload coil assiy

Providing of/DMT Relay with 3 phase over current earthfault protection with inst (make) Prok Dvis)

Cost of 3.3 KV grade current Transformer of CTR 400/5

Labour cost

d) Repairing of 3.3KV, 800Amps, 3phase, 50Hz ECE make oil circuit breaker at surface substation. e) Repairing of 3.3KV, 400Amps, 3phase, 50Hz, A/Y make OCB switch at surface substation of Dabor colliery.

Supply & fitting of Numerical IDMT relay with over current & earth fault.

Providing of Earth leakage relay with CBCT including 110 auxiliary wiring with test & re-set facility

Supply of Timer relay

Providing glass fiber board for bus bar separator phase etc

Providing copper Bus bar duly insulated with copper nut,bolt

Cost of spare of repairing of closing & tripping mechanism including supply of necessary spares in Place of damaged/unserviceable

Providing of 110 volt Shunt trip coil assembly complete set.

Cost for spares of copplete auxiliary 110 volt wiring with supply of 205 sq mm single core cu. Wire connectors Bakelire fuse base, with careet, cu.lug.etc

Labour charges for the above job with supervision.

Making of 2 Nos Chemical Earth pit and connection at surface substation ofDobor colliery

Supply of earthing, electrode, specification for one set as: Consisting one set: A length=3000 mm B. outer dia=80 mm, C. Inner dia 40 mm D. Connection terminal -14 mm E. Pipe-Dual Gl

Supply of backfill chemical earth resistance enhancing compound( 25kg in each ba ) 02 Bag in each hole

Supply, fabrication laying & connection of Gl strip with Gl nuts & bolts (strip size 50mm x 6 mm,40 mm x 6mm& 25mmx3mm

Supply & drawing of 25 sq. mm 2 core armoured Aluminium cable for neutral earthing

Labour charges for earth digging construction of earth pit, cementing work and installation of item sl. No. 1&2

Testing & commissioning earth pit as per IS standard

Add: Profit

Add: Provident fund on Labour cost

Total impact of GST for the purpose of CTC

KALYANI ENTERPRISE

R.S.ENTERPRISE & R S ELECTRICAL CONCERN