WORK OF ATTENDING THE OIL LEAKAGE FROM 160 MVA TRANSFORMER-I (BHEL MAKE) INSTALLED AT 220 KV S/S DEORIA UNDER ETD, DEORIA

Dismantling & safe stacking of Mulsifire air pipe line, water pipe line.

Drain out of the T/F oil from 160 MVA-I tank to empty on drum/oil tanker including opening of valve and filling empty oil drums and proper stacking.

Dismantling of 160 MVA-I T/F HV/LV&Neutral Bushing and its turret opening of all pipe line 6" 4" 3" 2" & 1 inlet, outlet valve, inspection cover Bucholz relay, OSR PRV, OLTC tank, MOG for replacement of gasket.

Replacement of old and damaged gasket of 160 MVA-I T/F make of rubberized cork sheet Konica/Nu-Cork make at following details below

Providing and making of HV Turret Gasket

Providing and making of HV Bushing Gasket

Providing and making of LV Turret Gasket.

Providing & making of LV Bushing Gasket.

Providing & making of LV Bushing Gasket

Providing & making of Nutral Bushing Gasket

Providing & making of inspection cover Gasket

Providing & making of OLTC pocket inspection cover Gasket

Providing & making of LV Nutral Inspection cover Gasket

Providing & maiting of Gasket for Expansion below 200 mm. (03 Nos) 80 mm. (01 No)

Providing & making of 6" Butterfly valve Gasket

Providing & making of Butterfly valve Gasket for Raditor 80 mm

Providing & making of 8" Butterfly valve Gasket

Providing & making of Surge relay Gasket

Providing & making of Gasket Buchholz Relay

Providing & making of Gasket of PRV

Providing and making of gasket of MOG

Providing & making of 15mm. dia valve Gasket

Providing & making of 1" dia valve Gasket

Providing and making of 2" dia valve Gasket.

Providing and making of 4" dia valve Gasket

Providing and making of 6" dia valve Gasket

Providing and making of flow indicator Gasket

Providing and making of gasket of oil pump

Providing and making of gasket of OLTC tank

Providing and making of nylon washer of raditor bushing, air releasing plug

Erection of turret HV/LV/TV side and erection of Bushing, oil Pipe line 6", 4", 3", 2" & 1" Gear box, OLTC pipe line,Pump Flow meter, inspection cover. MOG etc for complete work.

Complete evacuation of 160 MVA Transformer main tank and filling of Dry Air/Dry Nitrogen of dew point-50°c or better in vaccum Pressure of 0.25 Kg/squr cm. and then again evacuating Transformer After required time interval (approx 12/24 hours) using centrifusing machine. The work shall include connecting pipe of machine as required measuring dew point values of N2 after every cycle till the required value is achived.

Draining & fluating of T/F core winding in main tank with hot T/F oil through centrifusing machine.

Vaccum inside the tank and filling the T/F oil.

Overhauling of diverter switch, removal the diverter switch from chamber cleaning hot oil removed the dirty oil and proper cleaning and fixing in original shape & replaced old gasket

Centrifusing of T/F oil already fill in oil tanker taking IR/BDV/PPM value of T/F oil at an interval of 06 Hrs. as per norms. After the desire value top up the centrifusing T/F at required level (Machine shall be provided by contractor)(Approx 60.7 KL)

Erection of Mulsifire system air of the water pipe line replacement of gasket & tightening nut and bolts

Rubbing cleaning and painting of mulsifire water & air pipe line with one coat of primer and 2 coat of existing colour synthetic enamel point of 1st quality ASIAN/BERGER/NEROLAC make

Safe Carriage of oil tank of 40 KL including loading & unloading from 400 KV S/S Motiram Adda Gorakhpur to 220 KV S/S Katrari Deoria. (Approx Distance 40 Km)

Safe Carriage of oil tank of 40 KL including loading & unloading from 220 KV S/S Katrari Deoria to 400 KV S/S Motiram Adda Gorakhpur . (Approx Distance 40 Km)

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