Repair and dehydration of 800KVA transformer 02 Nos in ISTC at CSIRCSIO Sector 30 Chandigarh

Amount

PART-A:-

Rewinding of Step Down Transformer of rating 11KV/433 Volts, 800 KVA, fitted with On Load Tap Changer(OLTC) upto the satisactory working condition after refitting at the site as required . The job includes: i) Disconnection, Reconnection, Carriage and transportation charges ii) Opening and de-tanking of Step Down Transformer 800KVA, opening of coils and refitting in original position etc. iii) Replacement of Copper winding New (DPC) 3- legs (H.V.) iv) Replacement of Top Cover gasket. v) Replacement of cork washer, gasket washer and rubber vi) Seals for all H.V. & L.V. rods. vii) Dehydration / filtration of Transformer Oil viii) Top up of Transformer oil in the existing Transformers uncluding testing, checking of leakage etc complete etc. as required. ix) Opening x) Insulation Material xi) sundry items such as nuts bolts washer, varnish Bakelite & other minor items etc. xii) Complete, Washing Cleaning and Painting of Transformers tank. xiii) Supply & fixing of Silica Gel Breather. xiv) Testing of 800 KVA Transformer as per IS specifications of winding resistance measurement. (IR Value, Ratio Test, Open circuit, Short circuit, No Load test, Routine Test. Test Continuity Check Test, High Voltage test in different voltage 1000V, 2500V, 5000V & 10000 Volts. & Pre-commissioning tests. Note: 1. Old retrieved scrap material will be the property of contractor. 2. Any other minor repair /replacement felt essential for smooth functioning of transformer, this shall be done by the firm in same cost and price.

PART-B:-

Dehydration of Transformer oil to remove moisture, filtering and increasing the di-electric strength up to required level with dehydration machine complete i/c carriage charges for machine up to site and testing of oil etc complete as required.

Supply & fixing of Silica Gel in Breather.

Top up of Transformer oil in the existing Transformers including testing, checking of leakage etc complete etc. as required.

Supplying & Fixing of LED Digital 3 Phase Ammeter, 5A, Class-1 size 96mm x 96mm in the existing LT panel including dismantling the existing and testing & commissioning, connection complete as required.

Supplying & Fixing of Digital Multifunction LT Panel Meter of size 96mm x 96mm in the existing LT panel including dismantling the existing and testing & commissioning, connection complete as required.

Supplying & Fixing of SS Panel Door Lock in the existing LT panel including dismantling the existing and testing & commissioning etc. as required.

Supplying & Fixing of LED indicator in RYB colors for LT Panel supply indication in the existing LT panel including dismantling the existing and testing & commissioning, connection complete as required.

Servicing & repair of RTCC Panel fitted with OLTC of Step Down Transformer of rating 11KV/433 Volts, 800 KVA, upto the satisfactory working condition.

Providing and fixing 100 A TP MCCB with thermomagnetic release and terminal spreaders in existing cubicle panel board including drilling holes in cubicle panel, making connections, etc. as required. Make & Model: DTH 100 model of L&T or equivalent model of LEGRAND /SCHEINDIER/MERLIN GERIN

Providing and fixing 250 A, 35 KA,TP MCCB with thermomagnetic release and terminal spreaders in existing cubicle panel board including drilling holes in cubicle panel, making connections, etc. as required.

Providing and fixing 200 A TP&N switch disconnector fuse unit inside the existing panel board with ISI marked HRC fuses including drilling holes in cubicle panel, making connections, etc. as required. Make & Model: SP04 model of GE or equivalent model of LEGRAND /L&T/SCHEINDIER/MERLIN GERIN

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