ETC MU T 22 2024 25

Amount

Following works are to be carried out for replacement of damaged 63 MVA T/F by 63 MVA T/F at 132KV Sub-station Jolly Road.

Dismantling of 63 MVA 132/33 KV Transformer along with draining of required quantity of oil from Transformer at 220 KV Sub-Station Khatauli and opening of electrical jumper, earthing & termination connections of 63 MVA T/F-II.

Loading of 63 MVA Transformer main tank along with accessories at 220 KV Sub-station Khatauli making the wooden sleeper support, jacking the Transformer tank up to the trailer height placing, the rail under Transformer tank and shifted up on the trailer, removed the rail under Transformer tank and proper tightening the main tank with trailer bad with the help of steel rope turn and all other associated work.

Packing of HV/LV/Neutral bushing of old and used 63 MVA T/F in empty wooden crate (Packing material will be provided by the contractor at his own cost)

Carriage of 63 MVA T/F main tank from 220 KV Sub-Station Khatauli to 132 KV Sub-Station Jolly Road along with all accessories by Multi Excel Trailer /Truck distance approx. 30 km..This route is chosen to avoid Railway Crossing and under construction bridges) with transit insurance.

Unloading of main tank of 63 MVA 132/33 KV T/F loaded on trailer, jacking the tank for packing the rail under the Transformer .tank and shifting it of wooden to plate form, Removing the rail under the T/F tank on wooden sleeper, lowering the tank towards ground by slowly and removing the wooden sleeper under the tank and unloading of various Transformer accessories of above 63MVA Transformer like oil filled drums, bushing conservator tank, cooling fan etc. from Track/Trailer at site at 132 KV Sub-Station Jolly Road.

Shifting/dragging of 63 MVA T/F from unloading place to plinth upto 20 meter distance including turning of T/F if required including all T&P & other works to complete the lob satisfactory.

Complete erection of 63 MVA T/F by erection of radiator, conservator tank, bushing with its turrets (if available) connecting.of all oil pipe line, erection of cooling fans, making control cables connection, buchholz relay etc. for completing the work, topping of Transformer oil and final oil filling in tank, radiator, conservator tank and all other associates work for completion of work. Replacement of gasket of radiator/Bushing/Pipeline etc. except top cover of Transformer by providing and fixing of new gasket as per existing size made of rubberized cork sheet Kotika/Turborze brand grade 07.

Replacement of RTCC panel of 63 MVA T/F in control room at 132 KV Sub-Station Jolly Raod including its termination and fitting as per site requirement and its connection.

Electrical connection of 63 MVA 132/33 KV Transformer Control and relay panel to Marshaling box etc. with proper feruling as per drawing.

Earthing of Main tank of 63 MVA 132/33 KV Transformer by using MS flat 50x6/75x10 mm size its jointing with already laid earthmat/deltas preparing neutral bushing upport for its earthing including all work.

Centrifuging of complete Transformer oil in transformer by connecting centrifuging pipes circulating the Transformer oil through PVT. Centrifuging machine (to be arranged by the contractor) including taking BDV values of oil periodically till required valve is achieved (Approx. 19 kL Oil).

Jumpering of 63 MVA Transformer HV side cutting of conductor and tightening of conductor with connector.

Transformer oil sample collection testing of Transformer oil at CPRI testing lab including cost of transportation of each sample in standard sample bottles i- Breakdown Voltage Test ii- Moisture content Test iii- Disolved Gas Analysis

Gupta Elect and Engg Works (BID ID -5027697)

Technocrat Electrical (BID ID -5021605)