The oil-free bushing EKTG is a special solution for connecting SF6 and transformer oil. It has a solid-state active part made of resin-impregnated paper with a capacitor control. The bushing is available for rated voltages from 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.
