Delhi State Industrial And Infrastructure Development Corporation Limited Tender

Dehydration of 11kv 1000KVA Transformer and arresting the leakage, cleaning of existing 1000KVA, 11 KV/ 433 Volt outdoor oil type transformer by disconnection of HT and LT site cable/ bus trunking, draining out of oil from conservator tank & dismantling the same Lifting of top cover with core and winding by hydra/ crane 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 i/c Oil seal as required and reassembling of same after removing sludge, dehumidification, dissolved moisture and gas by re-circulation method and hiring charges of filtration equipment, replace breather filled silica gel, i/c arresting leakage i/c following testing, HV/LT cable tightening i/c credit for worn-out materials, oil etc and submission of reports etc complete as required. 1. Voltage Ratio Test 2. Magnetic balance test 3. Magnetic Current test 4. Insulation Test 5. Pl Value Test 6. Winding Resistance Test

Supplying and Filing of transformer Oil in the existing HT 1000 KVA Transformer & topping / replacement i/c testing of dielectric strength of the transformer Oil after refilling complete as required.

Painting of grills & walls around the transformer and body of transformer by enamelled paint complete as required.

Supply and fixing temperature gauge on the existing Transformer including testing etc. complete as required.

S/I/T/C of Over Current Relay (Inverse) Type and Earth Fault Relay (Inverse) 2.5-10Amp. 50Hz in the existing HT panel by secondary injection method cleaning the contacts resetting with reqd. accuracy complete checking & setting of complete wiring i/c fixing of the relay unit etc complete as reqd.

Servicing of 3 Phase 11 KV, 630 AMP capacity H.T. VCB opening the required parts for servicing, checking, cleaning, testing and rectification of defect oiling, greasing, moving gear assembly and arc contact with CR 2 spray and Cadmium solution i/c reassembling, recommissioning in the H.T. Panel etc as required.

Calibration & Testing of relays having 2 Nos O/L relays and one no. earth fault relay in the existing HT panel By secondary injection method cleaning the contacts resetting with required Accuracy complete checking & setting of complete wiring i/c fixing of the relay unit etc complete as required.

Servicing of 11 KV/110 volts PT complete including removal of the PT from the HT Panel board cleaning of dirt particles, soaking the moisture, tightening the connections including cheeking of the top cover assembly, testing and commissioning etc complete as required.

Servicing of 11 KV, 100-50/5+5 Amp. CT complete including removal of the PT from the HT Panel board cleaning of dirt particles, soaking the moisture, tightening the connections including cheeking of the top cover assembly, testing and commissioning etc complete as required.

Supply and Fixing of following accessories in the existing LT panel board including connect on, testing complete as required.

0-500 Volt Digital Voltmeter.

0-3200/5 Amp. Ammeter

Indicating lamp (RYB)

S/I/T/C of Control fuse, suitable size For VCB 630 Amp in existing HT Panel complete as required.

S/I/T/C of Anti pumping device suitable size for VCB 630 Amp In the existing HT Panel complete as required.

S/I/T/C of Shunt release suitable size for VCB 630Amp, 24 V DC in the existing HT panel complete as required.

S/I/T/C of Closing coil suitable size for VCB 630 Amp. 24 V DC in the existing HT Panel complete as required.

S/I/T/C of Double Z Switch suitable size for VCB 630 Amp. in the existing HT Panel Complete in all respect.

S/I/T/C of Limit switch suitable size for VCB 630 Amp. in the existing HT Panel complete as required.

S/I/T/C of Charging motor suitable size for VCB 630 Amp. 24 V in the existing HT Panel complete as required.