Drinking Water And Sanitation Department has published Tender For Supplying, Installation, Commissioning And Testing Of 33/11 Kv, 5 Mva Power Distribution Transformer With Other Allied Materials Under D.W. And S. Mech. Urban Division, Ranchi. Submission Date for this Tender is 24-07-2023. Distribution Transformer Tenders in dhurwa Jharkhand. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Supplying, installation, commissioning & testing outdoor type 33KV/11KV, 5MVAcopper wound power transformer on load tap changer 15% to 5% in step of 1.25% with RTCC-AVR and marshalling box. Continuous rated for three phase,50 Hz, full load and temperature rise not exceeding 40 degree thermometer in oil and 50 degree by the resistance in winding after continuous run at full load rating. The transformer should have oil immersed winding having vector group DY-11. HV side connected in Delta and LV side connected instar withneutral brought out connected to provided separate Earthing. The Transformer shall have power terminal arrangement, bushing on HV side and cable end box on LV side suitable to connect XLPE aluminium cable on LVside. The transformer should have following standard fittings: The OLTC shall be accomplished with:1).Oil conservatorwith fitting hole with cap and plain oil level 2) silica gel dehydrating breather charged with silica gel. 3).Oil drain Valve. 4).Lifting eyes/hooks. 5).Oil filter valve. 6).Two earthing terminals. 7).Diagram and rating plate. 8) Air Vent 9).Explosion vent. 10).Bucholtyze relay. 11),Resistance temperature detector. 12).Marshalling Box. Make:Kirloskar/ABB/Crompton Greaves/Synergy |
| 2 | Construction of PCC foundation with M-20 Grade concrete mixture with two nos. of channel & stopper size : L 4000 mm X W 3000 mm XH 2000 mm as per site requirement. |
| 3 | Supplying and laying heat shrinkable end termination kit of 400 sq. mm size indoor type of reputed make. |
| 4 | Providing chemical earthing with 80 mm dia 3 mts. long dual pipe with 2 bag electrogrip BFC (NTH certified). |
| 5 | Supplying, erecting approved make thyrite/Metal oxide type lightening arrestor suitable for 33 KV/HT supply station with necessary ancillary material complete on provided cross arm/ suitable and connected to overhead line as IS 3070. |
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