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A maintenance locking device for circuit breakers in central cabinets

A technology of locking device and circuit breaker, applied in switchgear, switchgear parts, pull-out switchgear and other directions, can solve the problems of misoperation of rocker arm, operation trolley cannot leave, etc., and achieve the effect of preventing accidents.

Active Publication Date: 2020-12-01
GUIZHOU POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a circuit breaker inspection and locking device in the central cabinet to solve the problem in the prior art that the operating trolley cannot leave the central cabinet, otherwise the rocker arm may be misoperated by others

Method used

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  • A maintenance locking device for circuit breakers in central cabinets
  • A maintenance locking device for circuit breakers in central cabinets
  • A maintenance locking device for circuit breakers in central cabinets

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Embodiment Construction

[0026] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0027] Such as Figure 1-Figure 5 Shown:

[0028] The invention provides a maintenance locking device for a circuit breaker in a central cabinet, which includes a clamping part that fixes the operation block in the circuit breaker, a rotating part that controls the tightness of the clamping part through rotation, and a locking part that locks the rotating part . By rotating the rotating part, the clamping part can be tightened and tightened, so as to fix the ...

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Abstract

The invention provides a centrally installed switchgear breaker maintenance locking device. The centrally installed switchgear breaker maintenance locking device comprises a clamping part for fixing an operation block in a breaker, a rotating part for controlling the tightness of the clamping part through rotation, and a locking part for locking the rotating part. By rotating the rotating part, the tightness of the clamping part can be controlled, so that the operation block in the breaker is occluded and fixed. And then the rotating part is locked by the locking part, so that other people cannot operate the device, and the accidents are prevented.

Description

technical field [0001] The invention relates to an auxiliary disassembly device, in particular to a maintenance locking device for a circuit breaker in a central cabinet. Background technique [0002] The full name of the central cabinet is metal armored central removable switchgear. It is a high-voltage power distribution device with a maximum working voltage of 3.6 / 7.2 / 12kV. It is an indoor complete power distribution device for a three-phase AC 50Hz single-bus section system or a double-bus section system. It is used to receive and distribute 3.6-12kV network power, and implement control, protection, monitoring and measurement of power circuits. The central switchgear is mainly used in power plants, power transmission of small and medium-sized generators, power reception and power transmission of secondary substations in power systems, power distribution of industrial and mining enterprises, and starting of large high-voltage motors. [0003] The applicant finds that th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02B11/02H02B11/167
CPCH02B11/02H02B11/167
Inventor 娄坤张学勇朱涛杨元勇蒋德刚肖飞肖祥代显俊屠建明肖平平夏鑫代贤松谢丽向旋李磊何江
Owner GUIZHOU POWER GRID CO LTD