SEKGFt are oil-free switchgear bushings whose solid active part is made of resin-impregnated paper. The bushings contain a capacitive graded condenser core. The space between the bushing housing and the resin impregnated paper core will be dry filled with SF₆ free polyurethane insulating foam, resulting in an unpressurized gap. The air side housing is a composite insulator. The GIS flange can be manufactured according to individual customer specifications. This bushing design is available for rated voltages between 73 kV and 550 kV, and for rated currents of up to 4000 A.
All bushings are designed and tested in accordance with IEC Standard 60137. Bushings in accordance with IEEE Standard or other national regulations are available on request.
