Complete rewinding and repairing of (A) 30 HP K.E. make 1470 rpm 550 volt motor (B) 50KVA 550V 440V Transformer with installation under S.S.Pur Colliery.

Amount

Item Description/ Heading

Super enameled Copper wire

'F' class insulating materials.

Flexible glass leads for terminal connection

Moisture free varnish with thinner

Soldering materials like soldering stick, Flux paste etc.

Decarbonising, cleaning, varnish, nut, bolt

Labour charges for rewinding of coils

Mechanical job: both side housing as per bearing size sleeve making and fixing as per proper bearing size.

Both side shaft bearing size welding, machining etc.

Dismantling and refitting charges

Transporting charges both side loading, unloading to and fro

Supply of new electrolyte DPC copper conductor for primary and secondary coils (39kgs. + 36kgs.)

Supply of insulating materials of suitable grade.

Supply of gasket joints complete set

Supply of primary & secondary side H.T. bushing insulator with current carrying contacts.

Repairing of Tank, conservator, cooling pipe with fitting new gate valve.

Supply and fixing of suitable rated tape changer switch including mechanism alignment with transformer Tank.

Re-insulation of Secondary copper conductor into DPC

Labour charges for rewinding

Dehydration and filtration of Transformer oil

Charges for high voltage pressure testing

Charges for painting the above transformer

Transportation charges of above transformer up and down with loading and unloading

Transportation, loading, unloading of 50KVA transform from SDL shed to Sarpi Sub-station

Installation of 5OKVA 55OV/440V transformer at sarpi Sub-station with making connection of both side insulationg tape etc.skilled 1 head X rs 856/- unskilled 764/- X 4 head)

Total impact of GST for the purpose of CTC

BENGAL ELECTRICAL ENTERPRISE (BID ID -1111958)

DUTTA ELECTRIC (BID ID -1111966)