| 摘要 |
PCT No. PCT/DE88/00686 Sec. 371 Date Jan. 9, 1991 Sec. 102(e) Date Jan. 9, 1991 PCT Filed Nov. 3, 1988 PCT Pub. No. WO90/01787 PCT Pub. Date Feb. 22, 1990.A metal-clad, compressed-gas insulated, high-voltage switching station with an insulated grounding switch. In the case of compressed-gas insulated, high-voltage switching stations, insulated grounding switches are also used for applying test voltages. Therefore, provided between the housing and the casing is an insulating ring, within which a conductor is embedded with a terminal lug which contacts the contact pin. In order to improve the insulation, the insulating ring reposes within a metallic ring, which acts as a prop ring and which receives the fixing agents. It is only interrupted by the terminal lug which is provided with an insulating enclosure. The insulating ring is thus largely relieved from mechanical stresses. Insulated grounding switches are used in the case of metal-clad, high-voltage switching stations which are insulated by SF6 compressed gas.
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