A. Complete rewinding and repairing of 100KVA 550Volt 440Volt Lighting transformer along with installation at Kunmardihi Siding B. maintenance of 1 MVA 11KV 3.3KV power transformer with dehydration and filtration and replacement of damaged crock shee

Amount

Item Description/ Heading

(A)( Complete rewinding and repairing of 110 KVA 550 Volt/440Volt Lighting Transformer) Cost of DPC coated Aluminum wire

Cost of Insulation materials

Cost of Cork sheet, rupaton rod, DA, Oxygen etc.

Cost of brass stud with insulator brass

Cost of wooden forma for coil making

Cost of decarbonsing core and tank cleaning etc.

Cost of varnish and thinner

Repairing of tank and damage cooling pipe

Rewinding charges

Both side transportation charges.

For installation of the transformer at Kumardihi Siding. Transportation, loading and unloading of 100KVA 550V/440V transformer from workshop to Kumardihi Siding

Installation of 10OKVA 550Volt/440Volt transformer including testing, commissioning, making cable connection of both Primary and secondary side etc.

Laying and erection of 50/70Sqmm XLPE/PVC cable from O/H line to primary side of the transformer and secondary side to the O/H line

(B) Maintenance of 1MVA 11KV/3.3 KV power transformer Dismantling top cover, cleaning, refitting the same

Dismantling connection joint box

Supply and fitting of Cork sheet 6mm

Supply and fitting of Cork sheet 4mm

Replacement of connection with stud

Hardware materials

Dehydration and filtration of transformer oil

Repairing charges

Transporting charges

Supply and fixing of Silica gel breather for 2MVA transformer

( C)(Complete repairing and overhauling of 200Amps 55OVolt Mine Line make ACB switch) Supply of moving contact

Supply of fixed contact

Supply of Arc-chute

Supply of moving holder

Supply of moving jumper

Supply of Earth Leakage Relay

Supply of flexible copper lead (95Sqmm)

Supply and fitting of CT (200/5)

Supply and fitting of CBCT

2.5Sqmm 1.1KV grade insulated wire

Supply of terminal with insulator

Supply of Isolator (ON/OFF)

Supply of isolator jumper

Different size of HT body bolt, nut, screw, connection bolt.

Supply and fitting of Ammeter

Supply and fitting of cable Entry box

Supply and fitting of Dashboard overload

Testing and commissioning charges

Transporting charges

(D)( Complete repairing and rewinding of 15KW/20HP 550volt Auxiliary fan motor) Super enameled Copper wire

'F class insulating materials, dr. Beck, varnish etc.

Wooden forma for formation of coil

PVC cable

Mechanical job : Housing sleeve machining and fixing

Rotor shaft both side housing machining as per bearing size

Supply of body bolt

Supply of bearing no. 6209

Motor dismantling, repairing and stripping with refitting charges

Total impact of GST for the purpose of CTC

BENGAL ELECTRICAL ENTERPRISE (BID ID -1120226)

DUTTA ELECTRIC (BID ID -1120229)