West Bengal Electronics Industry Development Corporation Limited Tender

Desing, manufacturing, delivery and installation including placing in position at site, testing and commissioning of 500 KVA 11/0.433 KV, 500MVA, 5 position, 50 HZ copper wound indoor cast resin dry type transformer with class H insulation & IP 23 enclosure. Vector group DYn11 having HT cable box and LT cable box with cable gland plate suitable for terminating 1.1kV grade 3 nos. 3.5C, 300 sq.mm XLPE LT cables in the LT side and 11/11 KV(E) grade 1 No. 3C. 185 sq.mm armoured al XLPE cable in the HT side including all other components as specified. Supply of all installation materials like mounting channels as per manufacturer's design high tensile bolts, nuts, washers, screws, clamps, painting, earthing, etc. as required confirming to the technical specification along with Rating & Diagram Plate, Earthing terminals, lifting lugs, off load tap link, winding temperature indicator, bidirectional rollers, NCT (500/5A, 5P20, 20VA), digital winding temperature indicator with 2 sets of potential free contacts with suliable sensors in each phase complate in all respect as required. The off load tap link with (+)5% and (-)5% tappings in step of 2.5%. The installation shall confirm IS : 10028.1981(Part II) & amended upto date. The rate shall be inclusive of necessary civil works, mounting channels, earthing etc. complete in all respect. (MAKE : VOLTAMP(Vadodara)/ABB/CGL/Century). The Job also include shifting/replacement of existing running Transformer to a safe distance ( as advised by engineer in charge)

Shifting of existing running 250 KVA Oil type ,Transformer to a safe distance ( as advised by engineer in charge) after disconnection /dismantle of cable connection (HT & LT both), earthing ,fouldation bolt etc. as required and construction/ preparation of base foundation for installation of new 500KVA Dry type transformer as per manufacturer guidelines. Existing 11KV cable to be re-connected at the HT side of the new thansformer. Cable joining kit along with termination at Transformer HT side to be provided by the contractor, if required . Necessary liason charges for pre comissioning test and obtaining from statutory authorities on behalf of Webel is included.