THREE-PHASE CABLE TERMINATION FOR METAL ENCLOSED COMPRESSED GAS-INSULATED SUBSTATION

摘要

A three-phase termination for gas (e.g. SF6) insulated substations comprising an insulating gas chamber; a pothead for separation of the pipe-type cable into terminal elements below the chamber; a gas-tight seal between the pothead and the gas filled chamber; the terminal elements passing through the seal into the chamber, and tubular extensions from the chamber containing conductors connected to the terminals in the chambers. No trifurcating structure is required and the gas-filled structure is isolated from the cable structure thereby avoiding contamination of the insulating gas.