The oil-free EKTG bushing offers a special solution for SF6 and transformer oil environments. It has a solid active part made of resin-impregnated paper and a condenser control. The double flange is designed to be connected to GIS lines; the sealing systems are SF6 gas tight. The bushing is designed for rated voltages of 52 to 800 kV and rated currents up to 4000 A.
Design
Intended for the direct connection of power transformers to SF6-switchgear, the type EKTG has an insulating body of resin impregnated paper (RIP). The condenser core is made of special paper epoxy resin vacuum-impregnated paper. Conductive layers made of aluminium foil are inserted between these paper layers for grading the electric fi eld. Thanks to their good conductivity, optimum voltage distribution is guaranteed even in case of rapid voltage changes.
All bushings are designed to comply with IEC Standard 60137 and tested accordingly. The dimensions of the SF6-side of the bushings correspond to the data of IEC 61639 and IEC 62271-211 Bushings that comply with IEEE Standard or other national regulations are available on request.
