Repairing, Testing and Commissioning of HT and LT Sub-Station Equipments at CETP plant 06 MLD GTK Industrial Area, Delhi.

Servicing, overhauling, cleaning & testing of existing 11KV, 630Amp, 350MVA, 50Hz, 3phase, horizontal draw out and horizontal isolation type Kirloskar Make vacuum circuit breaker (VCB) complete with removal from the HT panel board, dismantling /opening the required parts for servicing, checking, cleaning, testing & rectification of defects if any, setting right of main contacts, moving contacts, tripping and closing mechanism, oiling, greasing, assembling etc. complete as reqdand decarbonising the fixed spout of panel after dismantling and refixing the same, oiling, greasing, assembling i/c servicing & repairing of rack in & rack out mechanical, replacement of broken / worn out parts and set right the same, complete mechanical and electrical testing of VCB i/c making the tripping and indication system workable by replacing and making good the control wiring, testing of Hi - Potential test, Insulation Resistance Test (IR), CRM Test, Breaker Trip timing, Breaker Close timing and Trip-Close timing test with suitable testing kit and instruments complete as required.

Servicing, overhauling, cleaning & testing of draw out type 800 - 2500 Amp. capacity LT ACB i/c dismantling and replacing of minor components if required i/c reassembling of ACB replacing and checking of all tripping mechanism and cleaning of contact points and cleaning of carbon from main contact, tightening of loose connection, arc chute with CRC, checking the mechanical and electrical tripping system, greasing of moving mechanism, replacement of burnt / heated thimbles, nut, bolts, PVC tapping, testing of insulation Resistance Test (IR), CRM Test, Breaker Trip timing, Breaker Close timing and Trip-Close timing test with suitable testing kit and instruments complete as reqd.

Testing of the complete system of 11KV HT panel for checking the actual working of the CTs, their wiring, connected IDMT relay, shunt trip system, breaker's tripping system and for any loose connection by primary injection method in all three phases and at each plug setting at actual time multiplier at site with suitable testing equipment i/c rectify the defect in control wiring etc if any, i/c calibration of relay set by secondary injection method with suitable testing equipments cleaning the contacts, resetting with required accuracy complete with checking and set right the wiring etc complete as required.

Servicing, overhauling, cleaning & testing of 11KV/110Volt, 3 - Phase, Potential Transformer (PT) after dismentalling the PT from the HT panel, replacement of worn out parts & fuse suitable for 11KV/110Volt HT PT i/c reinstallation, re connection, testing of transformer- Voltage ratio test, insulation resistance test, Hi Potential test with suitable testing equipments duly calibrated, re-fixing, testing, commissioning etc. complete as reqd.

Servicing, checking & cleaning LT panel / Emergency Panel / AMF Panel 3phase, 4wire, 50Hz, AC supply system comprising of outgoing feeders of rating varies from 100A to 800A i/c servicing of operating mechanism of all the switchgears,checking, cleaning & tightening of contacts of switchgears, tightening of cable end termination, replacement of burnt/heated thimbles, PVC taping etc. wherever reqd.

Servicing, repairing and testing of existing 50 kVAR APFC Capacitor Panel, including inspection and checking of all capacitor banks, (20 KVAR=1, 10KVAR=2, 5KVAR=2) detuning reactors (if any), contactors / thyristor switches, APFC relay programming and calibration, tightening of power and control wiring, checking of fuses, busbars and terminals, insulation resistance (IR) testing, functional testing of individual steps, balancing of kVAR stages, cleaning of panel and components, replacement of minor consumables, and commissioning complete, as required, at site.

Servicing, repairing & testing of existing 630KVA, 11KV /433Volt indoor oil type CG/GEC Alstom Make transformer arresting of leakage by disconnection of HT & LT side cable/bus trunking ,draining out of oil from conservator tank & dismantling the same, Lifting of top cover and core by hydra/crane or jack as required and removing the old worn out gasket from all parts & joints, cleaning the surface and providing and fixing cork sheet gasket of suitable size with superior quality of adhesive for top cover gasket & HT &LT side gasket as required i/c replacement of worn out / broken bushings & oil seals as required and reassembling of same at original position, i/c removing sludge, dehydration, dehumidification dissolved moisture of transformer oil, testing of of BDV before and after dehydration and filtration of oil, replacement of silica gel i/c following testing of transformer and submission of reports:-Voltage Ratio Test, Magnetic Balance Test, Magnetizing Current Test, PI Value Test, Winding Resistance Test, Operating Function Aux Relay Test Insulation Resistance Test, Vector Group Test, Back Feed Test.

Supply & filling of transformer oil for top up in transformer of 630KVA rating 11/0.433KV, complete as reqd

Providing & fixing power pack unit for protection and indication system of 11 KV HT Panel suitable for 30 Volt DC output with 230/110 Volt AC input supply having battery backup with built in charger, sealed maintenance free batteries, auto cut-off on full charge, protection fuse on input as well as on output i/c connecting on HT panel board, testing commissioning etc complete as reqd.

Providing and replacement of following parts of 11KV, 630Amp, 350MVA, 3phase, 50Hz, horizontal draw out and horizontal isolation type Kirloskar make vacuum circuit breaker (VCB) i/c dismentalling the old worn out part from the VCB and credit the same, testing, commissioning etc. complete as reqd. Vacuum Interrupter