Longitudinal rotary type function composite type vacuum isolation circuit breakers

Abstract

The invention relates to a vacuum isolation breaker with a vertical rotating type and compound functions. The breaker consists of three phase terminal posts, an operation component and a hand frame. The three phase terminal posts with a vertical arrangement are connected into an integration through a vertical rotated beam, and a vacuum interrupter in the terminal post are wrapped (fixedly) by compound insulating materials which are mainly composed of epoxy resin, and two terminals of the terminal post are provided with a mobile contact terminal and a still contact terminal which can be connected with a main circuit. The vertical beam is hinged and arranged on the hand frame, and a connecting bar for driving the mobile contact terminal of the vacuum interrupter is arranged in the vertical beam. An integrated operation component including internally a breaker operation device, an isolation switch operation device, a mechanical interlocking device and a control device is arranged in the front of the hand frame, and the integrated operation component not only can drive the connecting bar device to have a linear motion and cause a making and a breaking of the contact terminal in the vacuum interrupter with the circuit, but also can cause the three phase terminal posts to have forward and backward rotations with 90 degrees and drive the connecting terminals on the two terminals to have a breaking or a connection with the circuit. The products have the advantages of compacted structure, easy maintenance and safe operation etc., and are more particularly fit for cubicle switchboards.

Description

Technical field [0001] The invention belongs to the technical field of high-voltage switchgear, and relates to a vacuum isolation circuit breaker which can be used to protect and control a high-voltage electrical system. Background technique [0002] At present, in the field of high-voltage switchgear technology, the circuit breaker and the isolating switch are two independent components with a single function, and most of their three-phase poles are arranged horizontally on the front, which has complex structures, large dimensions, and high manufacturing costs. , inconvenient maintenance, troublesome operation and mechanical interlocking, etc., when used with switch cabinets, not only makes the cabinet bulky, but also poses a serious safety hazard. Contents of the invention [0003] The purpose of the present invention is to solve the problems existing in the prior art, and further provide a vertical-spinning functional compound vacuum with compact structure, small size, ...

AI Technical Summary

Problems solved by technology

[0002] At present, in the field of high-voltage switchgear technology, the circuit breaker and the isolating switch are two independent components with a single function, and most of their three-phase poles are arranged horizontally on the front, which has complex structures, large dimensions, and high manufacturing costs. , maintenance is inconvenient, operation and mechanical interlocking are troublesome, etc. When used with switch cabinets, not only the cabinet is bulky, but also there are quite serious hidden safety hazards

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