Drinking Water And Sanitation Department has published Supplying, Installation, Testing And Commissioning Of 1250 Kva, 630 Kva And 400 Kva (11/0.433Kv) Outdoor Type Copper Wound Distribution Transformer With Other Allied Materials Under D.W. And S. Mechanical Urban Division, Ranchi . Submission Date for this Tender is 19-10-2021. Distribution Transformer Tenders in Dhurwa, Ranchi Jharkhand. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Providing, erecting and commissioning of 1250 KVA, 11000/433 Voltoutdoor type copper wound distribution transformer as per IS 1180 (Part-I): 2014 Level II continuously rated for 3 phase 50 Hz. on loadand temp. not rise exceeding 45º C by thermometer in oil and 50 º C by the resistance in winding after continuous run at full load rating, the transformer should have oil immersed winding having vector group DY 11. HT sideconnected in Delta and LT side connected in star with neutral brought out connected to provide separate earthing . The transformer shall have power terminal arrangement, bushings/ cable end box on HT side and cable end box on LT side, 2 Nos. channels with stopper shall be provided and fixed on the provided plinth for mounting the transformer. The transformer should have following standard fittings. Transformer shall be of latest manufacturing standards as per amended Is specification and the load & no. load losses shall be as per IS. (1) Oil conservator with filling hole with cap & plain oil level gauge (2) Silica gel dehydrating breather charged with silica gel (3) Oil drain valve (4) Oil filter valve(5) Lifting eyes/ hooks (6)Two earthing terminals (7) Diagram & rating plate (8) Air vent (9) Explosion vent (10) 100 dia" thermometer with thermometer pocket (11) Four bi -directional plain roller (12) Resistance temperature detector (13) Marshalling box (14) Automatic Voltage Regulator (15) RTCC (16) Buchholz relay (17) Filling of Transformer oilup to mark of its full capacity etc. Make of Transformer-Kirloskar/ABB/ Crompton Greaves/ Synergy |
| 2 | Supplying, installation, testing and commissioning of 630 KVA , 11000/433 Volt outdoor type copper wound Distribution Transformer with offload tap changer -15% to + 5% in steps of 1.25 % with RTCC.continuously rated for 3 phase, 50 Hz at full load and temperature rise not exceeding 45 degree Celsius by thermometer in oil and 50degree Celsius by the resistance in winding after continuous run at full load rating, the transformer should have oil immersed winding having vector group DY 11. HT side should beconnected in delta and LT side connected in star with neutral brought out connected to provide separate earthing . The transformer shall have power terminal arrangement, bushing/ cable end box on HT side and cable end box on LT side, 1 No. channels with stopper shall be provided and fixed on the provided plinth for mounting the transformer. The transformer shall be of latest manufacturing standard as per amended as per IS specificationand the load and no load losses shall be limited to the valueas per IS norms issued JSEB. It should have the standard fittings like -(1) Oil conservator with filling hole with cap & plain oil level gauge (2) Silica gel dehydrating breather charged with silica gel (3) Oil drain valve (4) Oil filter valve (5) Lifting hooks (6)Two earthing terminals (7) Diagram &rating plate (8) Air vent (9) Explosion vent (10) 100 dia" thermo meter with thermometer pocket (11) Four bi -directional plain roller (12) Resistance temperature detector, (13) Marshalling box (14) Automatic Voltage Regulator (15) RTCC (16) Buchholz relay (17) Filling of Transformer oilup to mark of its full capacity etc.including transportation, loading & unloading to site and installing at site, testing and commissioning all complete job with all labours, tools and technicians which ever are required. Make of Transformer-Kirloskar/ABB/ Crompton Greaves/ Synergy |
| 3 | Supplying, installation, testing & commissioningof outdoor type 400 KVA 11/0.433 KV copper wound distribution transformer with offload tap changer 12.5% to 2.5% in step of 2.5% continuously rated for three phase, 50 Hz, full load and temperature rise not exceeding 45º C by thermometer in oil and 50 º C by the resistance in winding after continuous run at full loadrating. The Transformer should have oil immersed winding having vector group of 0.4/11. HT side should be connected in delta and LT side in star with neutral brought out connected. The transformer should have power terminal bushing arrangement on HT side & cable box in LT side with standard filling of transformer oil including all accessories etc. all complete with all materials. Make-Kirloksar/ Crompton Greaves/ ABB. |
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