Vacuum switch ring main unit operating mechanism

Abstract

The invention relates to a vacuum switch ring main unit operating mechanism, which comprises: a combination of a vacuum switch operating mechanism and a three-position switch operating mechanism, anti-misoperation interlocking mechanical interlocking between the two operating mechanisms, and interlocking with a switchgear cabinet door. The vacuum switch operating mechanism is installed adjacent tothe lower part of a three-position operating mechanism of an isolating switch and the grounding switch. The isolating switch operating unit comprises an isolated support structure, a crank rocker mechanism, an operating motor, a control module, a transmission mechanism and an output mechanism. One end of the crank rocker mechanism operates in tandem with the power output end of the operating motor, and the other end of the crank rocker mechanism operates in tandem with the power output mechanism of the control module. A transmission shaft is fixedly installed on a rocker and operates in tandem with the output mechanism through a transmission mechanism. The vacuum switch ring main unit operating mechanism is modularized, can be electrically drivable, reliable in locking device, simple in installation process and superior in process performance, and improves the operation safety of a ring network cabinet by the operation logic set by a mechanical interlock device.

Description

technical field [0001] The invention relates to the field of power transmission and distribution switchgear, in particular to an operating mechanism of a vacuum switch ring network cabinet. Background technique [0002] The ring network cabinet is a kind of electrical equipment that integrates high-voltage switchgear in a metal-enclosed box, or makes a spliced ​​interval ring network power supply unit. Its core components are circuit breakers, load switches and fuses. Simple, small in size, low in price, can improve the quality and performance of power supply and improve the safety of power supply, the ring main unit is widely used in distribution stations and In the box-type substation, with the improvement of the use requirements, the structure of the traditional ring network cabinet can no longer meet the requirements of some high-performance switchgear for distribution network automation, and there are many defects in its structure. [0003] In the combined electrical s...

AI Technical Summary

Problems solved by technology

[0004] This implementation method has cumbersome installation procedures, which is not conducive to the realization of electrical automation. The effect of the mechanical locking method is not good, the function is relatively simple, and it is easy to misuse. It cannot stop the action of the isolating switch when the circuit breaker is closed. There are many types, poor craftsmanship, and the ability of locking and anti-violent operation is poor

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