Supply of outdoor type , Plinth mounted, Distribution Transformer, Minimum Energy efficiency level 3 of Rating 500 KVA Transformer

Description :Supply of outdoor type , Plinth mounted, Distribution Transformer, Minimum Energy efficienc y level 3 of Rating 500 KVA, 3-phase, 11kV/415-240V,50Hz, Oil Immersed, Non-Sealed type (Transformer ta nk body and cover are bolted), Copper wound, Primary Winding in Delta and Secondary Winding in Star (Ve ctor symbol- Dyn11), ONAN Cooled Transformer, Conforming to IS 1180 (Part1):2014 with amendment nos. 1,2,3,4 or latest, and supplied with all standard fittings mentioned in Clause 20.1 of IS 1180 (part 1) latest with condition that Drain-cum-sampling valve. Oil temperature indicator & Winding temperature indicators will be provided as per clause 20.2 f) of IS 1180 (part 1). Terminal arrangement: The transformers shall be fitted on high voltage and low voltage sides bushing appropriate voltage and current ratings., Low voltage and highvoltage side cable end box required. The high voltage bushings (3 Nos.) shall conform to IS/IEC 60 137. The low voltage bushings (4 Nos.) shall conform to IS 7421. Off-circuit Tap changer for variation of HV Voltage from +5% to -10% in steps of 2.5%. [ Warranty Period: 30 Months after the date of delivery ] ] Consignee SSE(G)/CON/KGP, SER West Bengal 3.00 Set Inspection Details Stage Inspection Not Required