BURN REPAIR TRANSFORMER 500 KVA

Disconnecting defective outdoor/ indoor power distribution transformer of capacity 500 KVA from HT/ LT sides draining out complete transformer oil & storing the same in suitable containers ( to be arranged by contractor ) opening the top cover and lifting up the core assembly carefully to check the condition of transformer winding core retanking the same after repair refilling the transformer oil after dehydration and filteration (dehydration and filteration to be paid separately) including checking of leakage of transformer body and welding works required for making transformer body leak proof transportation of transformer to and from site to work shop and re-installation the same at any site complete all as specified and directed -01Each job M&L for replacement of burnt /defective HT copper coil with new one made out of super enamelled heavy duty copper wires of size matching to the existing one including varnishing, drying and insulating material in transformer complete all as specified and directed-135.00 Kgs M&L for replacement of burnt /defective LT copper coil with new one made out of super enamelled heavy duty copper wires of size matching to the existing one including varnishing, drying and insulating material in transformer complete all as specified and directed-98.00 Kgs. M&L for Replacement of existing defective HT tap changer of suitable size with tapping arrangement 2.5%to 7.5% and one normal tapping including connecting up with HT coil and testing of transformer capacity 500 KVA complete all as specified and directed-01Each M & L for replacement of synthetic rubberised cork sheet gasket 1/4" thick suitablefor main body top cover of transformer. Capacity 500 KVA complete all as specified and directed-01Each M & L for Replacement of defective/ cracked LT porcelain bushing (set of three) of suitable size for transformer 500 KVA including washers of good quality complete all as specified and directed-01Each Set M&L for replacement of defective/ cracked HT porcelain bushing (set of four) of suitable size of transformer 500 KVA including washers of good quality complete all as specified and directed-01Each Supply and fix in repair LT bush rod made out of copper with brass nuts and washers of required length and dia (as per existing) including connecting up with HT coil of transformer 500 KVA complete all as specified and directed-01Each Set M&L taking down silica gel container from transformer and heating the silica gel at sufficient temperature to remove the moisture from it including refiting the same as per position complete all as specified and directed-01Each Job Testing of transformer oil of each transformer before and after dehyderation and filteration of transformer oil, installed in different sites for its dielectric strength and submitting the test report to the department.complete all as specified and as directed. Note : 1. Contractor shall arrange the oil testing machine and install at MES complaint cell of respective area. 2. Oil sample shall be collected from transformer in a air tight container and shall be tested at MES complaint cell of respective area in presence of MES rep-01Each Job Dehydration and filteration of existing transformer oil using transformer oil filteration plant to eliminate foreign particles and to improve di-electric strength upto 50 KV at 2.5mm electrode gap and to bring the acidity within the permissible limit complete all as specified and directed-435.00Ltr Supply and filling transformer oil for topping up the level of oil/ new filling, having dielectric strength 40 - 60 KV during filling after initial filteration, conforming to relevent IS-335 (Transformer oil to be supplied in sealed container) complete all as specified and directed. Make: Power/Insole/gulf -145.00Ltr