ELECTRICAL WORK

Amount

Shifting/ Dragging of oil filled 40 MVA Transformer from existing place to near loading place at 132 KV Sub-Station Industrial Area, Ghaziabad distance up to 20 Mtr.

Addition shifting 10 Mtr every 5 Mtr per job.

Packing of HV/LV/N Bushing of 40 MVA Transformer.

Loading of 40 MVA Transformer main tank along with accessories, making the wooden sleeper plate from jacking the T/F tank up to trailer height placing the rail under T/F tank and shifted up on trailer, removed the rail under T/F tank and proper tightening the main tank with trailer bad with the help of steel rope and turn buckle.

Carriage of 40 MVA T/F tank from 132KV Sub-Station Industrial Area, Ghaziabad To 132 KV JAHANGIRABAD along with all accessories by Pvt. Truck / Trailer. Distance upto 110 Km.

Unloading of main tank of 40 MVA Transformer loaded on Trailer jacking the tank for packing the rail under the T/F 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 40 MVA T/F like oil filled drums, bushing conservator tank, cooling fan etc. from Track/ Trailer at site at 132 KV Su-Station JAHANGIRABAD .

Safe Carriage of 20 KL Oil Storage Tank from 400 kv s/s pali within Approx. 90 Km distance to 132KV Sub Station Jhangirabad including its Shifting & Loading at 400 kv s/s pali and Unloading, Shifting & Placing at site at 132KV Sub Station Jhangirabad. and return back.

Draining out of complete oil from T/F and filling in empty oil tank.

Partially dismanteling of turret, all pipe lines, radiator valve,insepction cover, OLTC Tank etc.

Replacement (provide and fixing) of all gaskets including the Top cover,turret, all pipe lines, radiator valve,insepction cover, OLTC Tank etc of Transformer as per existing size made of rubberized cork sheet Kotika/Turboze/Nu- cork brand grade 07.

Cleaning of core and winding by T/F oil and removing the sludge from bottom.

Overhauling of diverter switch after removing of oil and dirty Transformer oil from its chamber & filling the fresh centrifuged Transformer oil & its centrifuging/circulation as per Norms of Transformer.

Complete evacuation of 40 MVA Transformer Main Tank and filling of dry Nitrogen/ Dry air of due point -500C or better in vacuum upto pressure of .25 kg/Cm2 and the again evacuation the Transformer tank after required time interval (approx. 12 to24 Hrs) using vacuum plant . The work shall include connecting pipe of machine as required, measuring dew points value of Nitrogen/ dry air after every cycle ( one job is defined as complete cicle of evavutation,filling and maintaning of dry air in the T/f main tank ) till the required value is achieved under supervision of supervising engineer.

Repairing of puncture wing of 06 Nos radiator of 40 MVA Transformer by the help of welding machine and maintaining of air pressure inside the radiator for checking of any leakage at 132 KV Sub-Station JAHANGIRABAD.

Overhauling the cooling fan of size 36" 03 phase 50 Hz. 1.2 Kw 700 RPM 415 V delta connection from 40 MVA transformer NGEF make replacement of burnt damage bearing SKF make, proper providing the insulation and Varnishing balancing the shaft and blade, releasing the armature from motor and winding will be done and insert the super enameled copper wire of class B insulation and Fan Reparing.

Spray painting of 132/33 KV, 40 MVA transformer NGEF make with one coat of red oxide primer and two coats of standard make light gray synthetic enamel paint of best quality after cleaning of rust, dust and oily surface including cost of all material labour and T&P as per Technical specification.

Preeti Enterprises

Perfect Power Transformer Associates