MID/AN/108

Reconditioning /Repair & Strengthening of the charging system, breaker engaging system and releasing system of M.E.I make, G.U.D type 800 amps. H.T oil circuit breakerunit no. 03 installed in control panel at LI.S. Rajal by way of replacement/rebuilding of damaged/worn-out parts/links of mechanism assembly, ball and socket assembly, worn out bushes with setting up of proper tension of closing and releasing springs after proper alignment of the replaced parts then oiling of bushes and bearings also to moving parts, repairing /proper greasing to trolley wheels for smooth movement of trolley during the time of installation with providing new locks to wheels, applying Vaseline on contact points for smooth functioning of tripping and releasing system. The job includes cost of material ,skilled & semi skilled labour charges for dismantling, reassembling and servicing also hire charges for deployment of tools & tackes including installation, testing at site Complete Job.Servicing, Repairing of Liquid Rotor starters (L.R.S.) type L.F.500, 300 K.W capacity of H.T 400 H.P, 6.6 K.V, and B.H.E.L make strip wounded slip ring type motor installed at L.I.S Rajal of pumping unit No 1 & 3 by way of draining out the old electrolyte from the L.R.S. Chamber, washing the internal and external surfaces of chamber by removing, sludge, corrosion, carbon deposit and then cleaning the internal surface of chamber with emery paper as required & then cleaning with cloth. Filling of new electrolyte up to reqd. level in the L.R.S. chamber. Job includes the cost of material , transportation charges, labour charges for skilled and semi-skilled workers for execution of job /handling the components with hire charges for deployment of tools and tackles at site. Complete Job

Reconditioning / Strengthening of base assemblies of 800 amps. 6.6 kV, M.E.I make, G.U.D type, H.T oil circuit breaker by way of extraction of all damaged / worn out Top & Bottom finger contacts & fitting of new finger contact at their respective places. Repairing of 03 No. rupturing chambers by way of filling superior quality epoxy compound at worn-out portion turning finishing to attain proper size of hole of rupturing chamber along with straightening/alignment after complete cleaning& then silver coating of 02 No. moving contact assembly, with soldering, refilling at worn-out portions and machining to attain proper size. Also providing silver coating on the contact plates also replacement of oil from repture chamber. The job includes cost of material, labour charges, assembling charges of breaker, charges for installation, testing & commissioning at site. Complete Job.

Fabrication/Providing & fitting of new upper arm /male contact assembly made up of copper with silver coated to M.E.I make, G.U.D type 800 amps. H.T Breaker (as per the sample provided by the department). The job includes cost of material and labour charges for skilled & semi skilled workers with hire charges for deployment of tools & tackles also electrical instruments at site also charges for testing & commissioning. Complete Job.

Fabrication/Providing & fitting of new lower arm /male contact assembly made up of copper with silver coated to M.E.I make, G.U.D type 800 amps. H.T Breaker (as per the sample provided by the department). The job includes cost of material and labour charges for skilled & semi skilled workers with hire charges for deployment of tools & tackles also electrical instruments at site also charges for testing & commissioning at site Complete Job.

Transportation charges for shifting of damaged Oil Circuit Breaker (O.C.B) Unit No. 03 installed in the H.T control Panel of 800 Amps at L.I.S Rajal to workshop and back shifting to site of installation after reconditioning involving manual loading, mechanical transportation and handling charges. Complete job

R K Electrical and Engineering Works

Chargotra Trading Co.