Insulation tube for indoor high-voltage vacuum circuit breaker

• Main Authors: PING WANG, XUECHENG GONG, PINGJUN QI
• Format: Patent
• Language: English
• Published: 06.05.1998
• Edition: 6
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; INSULATORS; RELAYS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; SELECTORS

The utility model relates to an insulating cylinder for an indoor high-voltage vacuum circuit breaker. Conductive seats for incoming and outgoing lines are respectively installed on the top part and the middle part of the insulating cylinder, wherein a seat (3) for the outgoing lines, which is arranged on the top part is fixedly connected with the static end (4) of an arc-extinguishing chamber through an upper bracket (2); a lower seat (6) for the outgoing lines, which is installed on the middle part is in sliding connection with a conductive rod at the moveable end of a vacuum arc-extinguishing chamber through a lower bracket (8) and a conductive vane (7); the inner side and the outer side of the insulating cylinder are respectively and additionally provided with skirt edge structures (10) and (9) to enable insulating creep distances to be more than 240 mm. The utility model is a novel insulating support; through the utility model, the conductive seats for the outgoing lines can be reliably connected with the arc-extinguishing chamber into a whole, and foreign matters and dust can be prevented from entering.