High-voltage switchgear with isolation fracture and moving contact assembly thereof

• Main Authors: XIE SHICHAO, ZHANG TAO, BAI WEI, LI JUNFENG, GUO LIANGCHAO, MA JING, CANG TAO, WEI JIANWEI, CHAI YINGHUI, DONG XIANGYUAN, HE YONGMING, GAO YUAN, WANG GANG, ZHAN XIAOMENG, DU YINGQIAN, SU QILI, ZHANG XINMIAO, CHANG KEGE, LIU LONG, DUAN XIAOHUI, JING QIONGQIONG, SUN YINGJIE
• Format: Patent
• Language: Chinese; English
• Published: 29.04.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; RELAYS; SELECTORS

The invention relates to a high-voltage switch device with an isolation fracture and a moving contact assembly of the high-voltage switch device. The moving contact assembly of the high-voltage switch equipment with the isolation fracture comprises a moving support with a guide hole, a moving contact is assembled in the guide hole in a guiding mode, the moving contact is provided with an insertion hole for a static arc contact of a static end assembly to be inserted, and the moving contact is provided with a piston cavity communicated with the insertion hole behind the insertion hole, or the piston cavity is provided with an isolation fracture. The moving contact is provided with the piston cavity and a lateral channel communicated with the piston cavity, the lateral channel forms an airflow inlet/outlet used for facing an electric arc between a static main contact of the static end assembly and the moving contact on the peripheral surface of the moving contact, and a piston is arranged in the piston cavity;