Rotary three-position switch and gas insulated switchgear with same

• Main Authors: ZHANG DI, LIU ZHANGTAO, ZHOU QINGQING
• Format: Patent
• Language: Chinese; English
• Published: 06.09.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; RELAYS; SELECTORS

The utility model relates to a rotary three-position switch and a gas insulated switchgear with the same. The three-position switch comprises an operating mechanism, a transmission mechanism connected to the operating mechanism and a moving contact connected to the transmission mechanism, so that the moving contact is controlled by the operating mechanism through the transmission mechanism to rotate among a closing position, an opening position and a grounding position, and the transmission mechanism comprises a transmission part and a control part, the first end part of the first switch is connected to the operating mechanism through an input shaft, the second end part of the first switch is connected to the moving contact through an insulating main shaft, and the periphery of the second end part is provided with a first limiting part; and the supporting part is provided with a through hole which is used for accommodating the second end part so as to allow the second end part to rotate relative to the suppor