Replacement of Gasket Painting and attend the oil Leakage of 160 MVA 220 132 11KV TF AREVA Make AT 220 KV SS Boner Aligarh Under ETD - I Aligarh

Amount

Following work to be carried out at 220 KV sub station Boner Aligarh for attending oil leakge of 160 MVA Areva make T/F by Welding & Gasket replacement, painting and other associated work.

Partially dismantling & safe stacking of emulsifier air pipe line & water pipe line and proper stacking of 160 MVA T/F

Draining out of oil from 160 MVA 220/132 KV T/F upto required level and filling in to empty drum / tank work including arrengement of pipe and pump as per requirement for satisfactory completion of work

Dismantling of 160 MVA, 220/132 KV T/F from HV/LV side bushing all pipe lines, conservator tank, radiator, buccholz relay headers,tap changer, turrets, OLTC pipe line including opening of jumpers from HV/LV bushing

Replacement (provide and fixing) of all gaskets by new gasket including the Top cover ,bushing,turret(if available) , 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 & Attanding the Leakage from Main Tank by welding and all other associated works to complate the Job Satisfactory.

Cleaning anf Flushing of T/F main tank by hot oil removing of sludge from the bottom of main tank create the vacuum inside the T/Ftank and maintain it for 24 Hrs

Overhauling of diverter switch after drain out of dirty oil

Erection of 160 MVA T/F of HV/LV side bushing turrets, radiator, conservator tank, buchholz relay etc and connecting all pipe lines including jumpering of HV/LV bushing.

Complete evacution of 160 MVA T/F main tank and filling of dry Air/ Dry nitrogen of dew point 50 °C or better in vacuum up to pressure of 0.25 kg/cm2 and the again evacute the T/F tank after required time interval (approx 12/24 Hrs) using centrifuging machine

Creating of vacuum inside the main tank for period for 24 Hrs step by step in 160 MVA T/F

Filling of Oil in oil tank and its centrifuging upto required BDV

Centrifuging of complete T/F oil (49500 Ltr) in T/F by connecting centrifuging pipe circulating the T/F oil through centrifuging machine and taking the periodically BDV value upto achieving of required value .

Erection of dismantled emulsifier air pipe line & water pipe line of 160 MVA T/F including Replacement of all gasket etc.

Spray painting of 220/132KV 160 MVA Transformer (Areva make) including complete spray painting of main tank, main/OLTC conservator tanks, radiators, headers, associated pipelines, support structure, marshalling box, driving mechanism box etc of transformer by applying 1 coat of red oxide primer 1st and then applying 2 coats of Admin/dark grey color 1st quality synthetic enamel paint of Asian/Berger/Nerolac make at proper interval each with the help of spray painting machine after due rubbing and cleaning of rusted surface, cleaning and washing of dust/dirt/oil deposits from the surface.

Spray/ brush painting of following mulsifyre pipe line rings of 220/132 KV 160 MVA Transformer (Areva make) with one coat of red oxide primer and two coats of standard make post office red 608-4 synthetic enamel paint & Black Paint of good quality after cleaning rust & oily surface.

Mulsifyre water pipeline of 80mm Dia

Mulsifyre water pipeline of 100mm Dia

Mulsifyre water pipeline of 65mm Dia

Spray/brush painting of mulsifyre air pipeline ring of 220/132KV 160 MVA Transformer Areva make by applying 1 coat of red oxide primer 1st and then 2 coats of standard make blue color synthetic enamel paint of 1st quality after cleaning rust and dust.

Technocrat Electrical (BID ID -5122316)

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