WBPHED/EE/BMD/NIeT-13 OF 2024-2025/4

Amount

Complete dismantling of the existing OLTC & thoroughly Inspection of the fixed & moving contact, complete tightness checking of each moving and fixed parts , complete roller alignment checking, complete removing of the damaged insulating parts greasing of motor bearing sprocket checking of the complete mechanical alignment of tap changer sprocket & bearing and making necessary alignment adjustment of the bearing sprocket & tap changer sprocket as per need to complete the job as per direction of EIC.

Supply delivery of the following items

Fixed contact connected with HT taping of Transformer (as per existing )

Main Moving Contact Assly connected with HT taping of Transformer (as per existing )

Resistor Moving Contact Assly connected with HT taping of Transformer (as per existing )

Transition Resistance Assly for protecting transformer open ckt. at the time of changing tap position from one tap to another tap (as per existing )

Supply for Epoxy Arm (as per existing )

Bearing Plate Assly (as per existing )

Energy Accumulator for force tap changing if spring energized

Fitting fixing of the above said items Sl No 2.1-2.7 with expart engineers, electricians with needed HT inssulators, tapes OLTC top cover & opening for replacement of fixed contact connected with HT taping of transformer, main moving contact assly connected with HT taping of transformer, resistor moving contact Assly connected with HT taping of transformer and other items to complete the maintenance of the OLTC work as per direction of EIC

Charges for gasket changes of 2000 KVA OLTC Transformer(11/6.6 kv) by disconnecting of all HT and LT terminals, draining transformer oil, opening of top cover, arresting of any oil leakage by changing of gasket and oil seal respectively various gasket portion like top cover, inspection cover, tap switch, conservator tank, radiators, Buchholz, drain valve (as where required) and HT-LT bushing portion as per direction of EIC

Drain out of existing oil of 2 nos 2000 Kva & 2 nos 125 kva trnsformer (4540 + 500 lit approx)

Hairing charges drums for holding the above said oil approx 5000 lit ( 2 nos 2000 KVA & 2 nos 125 KVA transformer)

Transformer oil filteration charges

Charges for Di-Electric Strength test (BDV Test) of 2 nos Transformer and 1 Nos AVR (A+C unit and B unit) oil

Supply of Transformer oil as per IS-335 (Make-Transol or approved) (top up for 2 nos 2000 kva & 2 nos 125 kva transformer)

Complete IR improvement of the Existing 2 nos OLTC by measuring with suitable magger , proper heating, using carbon clearing sprey, CRTWD-40, Lecta cleaner , Adesive non adesive PVC taaps and items for complete servicing necessary to IR improvement as per direction of EIC.

Charges for complete HT-LT panel tightness with necessary dismantling, rubbning cleaning, heating , vernishing by applying CRC, WD-40, Red insulation vernish, at different switch gear items and refitting of 4 nos panel as per direction of EIC

Charges for rectification of 1 no transformer OLTC auto operation by dismantling the OLTC panel with necessary inspection of the internal circuit and material as per direction of EIC.

Add: 18% GST

Add: 1% Cess

ORIENTAL ENGINEERING CO. (BID ID -5910754)

WEST BENGAL ENGINEERING CO. (BID ID -5904187)