Replacement of gasket for attending the oil leakage of 160MVA Transformer-I

Amount

Dismantling and safe stacking of air pipe line and water pipe line

Drain out of transformer oil from 160 MVA Transformer main tank into oil tanker including opening of valve and filling in empty oil tank and stacking at proper place

Dismantling of transformer HV/LV/TV/Neutral Bushing and its turret, opening of all pipe lines 6", 4" & 2" inlet, outlet valve, diverter switch inspection cover, bucholez relay, PRV for replacement of gasket.

Replacement of old and damaged gasket of 160 MVA T/F with good quality rebberized cork sheet Kotika/Telbroze/NE cork make.The details of corresponding work is as follow-

Providing and making of HV Turret gasket.

Providing and making of HV bushing gasket.

Providing and making of LV Turret gasket.

Providing and making of LV Bushing gasket.

Providing and making of gasket of inspection cover

Providing and making of gasket of 6" Butterfly valve

Providing and making of C.T. Inspection cover gasket of HV/LV

Providing and making of C.T. Inspection cover gasket of TV

Providing and making of C.T. inspection cover gasket of neutral

Providing and making of 1" dia pipe line gasket

Providing and making of surge relay gasket

Providing and making of Gasket of Buchholez relay

Providing and making of OLTC diverter switch plate gasket

Providing and making of 1" dia valve gasket

Providing and making of 2" dia valve gasket

Providing and making of 3" dia valve gasket

Providing and making of 4" dia valve gasket

Providing and making of Top rubber ball of TV Bushing

Providing and making of TV Bushing Gasket

Providing and making of N bushing gasket

Providing and making of flow indicator gasket

Providing and making of gasket for oil pump

Providing and making of gasket for OTI & WTI pocket

Providing and making of nylon washer of radiator, bushing, air releasing plugs.

Providing and making of gasket for NRV

Providing and making of gaket for MOG

replacement of different nut & bolt of main tank oil pipe line

Erection of HV/LV/TV side Turret and erection of bushing, oil pipe line 6",4" &3" , Gear box, OLTC pipeline, Pump, Flow Meter, Inspection cover etc. for completion of work.

Complete evacuation of 160 MVA transformer main tank and filling of dry air/ Dry Nitrogen of dew point -50° C or better in vaccume up to pressure of 0.25 KG/CM² and then again evacuating the transformer tank after required time interval (approx 12/24 Hrs) using centrifuging machine. The work shall include connecting pipe of machine as required measuring Due Point values of N2 after every cycle till the required value is achieved.

Cleaning and flushing of T/F core winding in main tank with hot T/F oil through centrifuging machine.

Overhauling of diverter switch , removal of the diverter switch from chamber , cleaning by hot oil, removal of the dirty oil and proper cleaning and fixing in original shape.

Create the vaccume inside the tank & filling the T/F oil.

Re-centrifuging of T/F oil already filled in oil tanker taking the IR/BDV value of T/F oil at an interval of 6 hrs. as per norms of T/F manufacturer. After achieving the desired value, top-up the centrifuged T/F at required level (machine shall be provided by the contractor) (Approx 62 KL)

Erection of mulsifier system air/water pipe line with proper replacement of gasket and tighting nut and bolts.

R.K.ENGINEERING SERVICES

M/s Abhinav Enterprises

SHIVAM ENGINEERS

RISHAB OIL RECLAIMATION PRIVETE LIMITED