flender H2-DV-22B Helical speed reduction gearbox H2

Flender/Flender Gear Units/Helical speed reduction gearbox H2

and frequency unless specified other wise in technical particulars Transformers shall be designed to withstand 1% over-fluxing orresponding to rated voltage. Duration of the ove -fluxing shall be as per the CBIP manual. Core material shall be directly procured either from CRGO manuf acturer or through their authorized service centre/distributor and not thr ough any contractor. Test certificate for the same shall be submitted at the time of inspection. Bidder shall use hydraulic core lifting facility to avoid any erk at the time of core building. 6.0 WINDINGS Material shall be elect rolytic grade copper. Shall be subjected to hrinkage treatment. Completed high voltage winding to be heated and dried before va cuum casting in resin. Shall be braced to withstand shocks due to rough handling, and forces due to short circuit, switching or ther transients. Permanent current carrying joint in winding and leads shall be brazed. Lead busbars to the terminal support insulators shall be rigidl supported. Current density shall be maximum 2.5A/mm2 unless specified otherwise in technical particulars 7.0 INSULATION Inter turn and inter coil insulat ion shall be designed such tha dielectric stress is uniformly distributed throughout the windings under all operati ng conditions. The windings shall be provided with insulation class , having temperature rise in winding limited to that of class insulation. 8.0 TERMINATIONS For Cable termination on HT side ) Three insulated terminals housed within flanged air insulated bolted type cable end box suitable for the ype and number of cables specif ied/ required. 1 of 1 INDRADHANUSH GAS GRID LIMITED TECHNICAL SPECIFICATION FOR NATURAL GAS COMPRESSOR STATION FOR NORTH EAST GAS GRID PIPELINE PROJECT ______________________________________________________________________________________________ TS NO.: MEC//2UU/0/2/0