| 摘要 |
PCT No. PCT/DE90/00722 Sec. 371 Date May 18, 1992 Sec. 102(e) Date May 18, 1992 PCT Filed Sep. 19, 1990 PCT Pub. No. WO91/07768 PCT Pub. Date May 30, 1991.In an isolating switch for metal-clad, compressed-gas insulated high-voltage switchgear, a mechanical control unit containing a rotatably supported lever arrangement. The lever arrangement locks automatically in a neutral position and retains an auxiliary contact pin until it is released by a guide surface connected to the main contact pin. A mating contact of the auxiliary contact pin is also spring-loaded and follows this auxiliary contact pin somewhat after being released, initially while maintaining the equipotential bonding.
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