WORK OF REPLACEMENT OF GASKETS , ATTENDING OF OIL LEAKAGE , CENTRIFUSING OF OIL AND OTHER ASSOCIATED WORK OF 40 MVA T/F (TAL MAKE) INSTALLED AT 132 KV S/S BHAGWANPUR , GORAKHPUR UNDER ETD-II, GORAKHPUR

Amount

Gasket replacement and other related miscllenious works of 132/33 KV , 40 MVA Transformer (TAL make) with other associated work and its painting at 132 KV S/s Bhagwanpur, Gorakhpur under ETD-II, Gorakhpur

Arresting oil leakage of 132/33 KV , 40 MVA Transformer (TAL make) by way work for dismantling of 40 MVA Transformer accessories and replacement of Gaskets at 132 KV S/s Bhagwanpur, Gorakhpur.

Dismantling of accessories of 132/33 KV , 40 MVA Transformer (TAL make) including radiator, bushing , buchholz relay , oil pipe line from conservator tank , oil pipe to OLTC and surge relay conservator tank.

Complete drain out of Transformer oil from existing 132/33 KV , 40 MVA Transformer (TAL make) to empty drum / 20 KL Tank.

Replacement of all gaskets including all HV bushing (R,Y,B & N Phase) and LV bushing (R,Y,B & N phase) and top cover Transformer by providing and fixing of new gasket as per existing size made of subberized cork sheet (Kotika/ Turborz/ Nucork brand grade 07).

Complete erection of accessories of 132/33 KV , 40 MVA Transformer (TAL make) by erecting radiators , conservator tank , HV, LV and Nutral bushing , connecting oil pipe lines, cooling fans and filling of Transformer oil tankers to transformer main tank top up in conservator tank up to required level , Jumpering of HV/LV side bushing and ready for energize Transformer etc. to complete the job and attending the oil leakage if any including all associted work satisfactorily.

Centrifusing of complete Transformer oil in tank by connecting centrifusing pipes , centrifusing the T/F oil through centrifusing machine to be provided by the contractor and taking the BDV value of the oil periodically till the required. The work includes all the work related to centrifusing oil and filling the oil in T/F and conservator tank (centrifusing machine will be arranged by the contractor and electrical power will be provided by the department free of cost at one point).

Creating the vacuum of main tank up to 700 mm of Hg and maintaining it for period of 12 Hrs. before filling of Transformer oil step up to core & winding conservator tank radiator,

Complete evacuation of 132/33 KV , 40 MVA Transformer (TAL make) main tank and filling of dry air / Nitrogen of dew point -500 C or better in vacuum up to pressure of 0.25 Kg / cm2 and the again evacuating the transformer tank after required time interval (Approx. 12-24 Hrs.) using centrifusing machine . The work shall including connecting pipe of machine as required measuring due point values of dry air during every cycle job ( One job is defined as complete cycle of evacuation , filling and maintaining of dry air in the Transformer main tank ) till the required value is achieved.

Safe loading , shifting / carriage and unloading work of oil tank of capacity 20 KL by private vehicle arranged by the contractor at his own cost from any available Substation to 132 KV S/s Bhagwanpur , Gorakhpur (Distance up to 200 Km) with proper precaution of road safety rules during Transportation of tank.

Sampling and testing of Transformer oil at NABL approved lab including cost of Transportation of samples in standard sampling bottels (adequate number of bottles to be arranged by contractor) (01 job for each sample) before charging of T/F main tank and OLTC samples.

Breakdown Voltage.

Partial Count .

Dissolved gas analysis.

Sediment & Sludge.

Dielectric Dissipation factor (Tan Delta) .

Testing of 40 MVA Transformer at 132 KV S/s Bhagwanpur , Gorakhpur (Testing team with testing kits shall be arranged by the contractor).

Insulation resistance measurement test.

Polorization Index Test.

Magnetic current Test.

Vector Group test.

Voltage ratio test.

Winding resistance measurement test.

Tan Delta and Capacitance measurement test.

Sweep frequency response analysis test.

TAJ ENTERPRISES (BID ID -5265661)

Gupta Elect and Engg Works (BID ID -5263216)