Method and apparatus for detecting contact head abrasive loss of vacuum circuit breaker

A vacuum circuit breaker and wear amount technology, which is applied to measurement devices, optical devices, instruments, etc., can solve the problems of unintuitive detection results, inconvenient operation, and untimely detection, and achieve intuitive display, high measurement accuracy, Simple and fast effects

Inactive Publication Date: 2009-07-01
SHANGHAI WESTHOUSE SWITCHGEAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using this method, in order to ensure the safety of the operators, the high-voltage switchgear under test must be partially disconnected from the high-voltage system connected to it. Disadvantages of untimely and unintuitive detection results

Method used

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  • Method and apparatus for detecting contact head abrasive loss of vacuum circuit breaker
  • Method and apparatus for detecting contact head abrasive loss of vacuum circuit breaker
  • Method and apparatus for detecting contact head abrasive loss of vacuum circuit breaker

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Embodiment Construction

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] figure 1 The main structure of the vacuum circuit breaker is shown, including the moving support 11, the static support 12, the insulating rod 13, the vacuum interrupter 14, the moving conductive rod 15, the moving contact and the static contact, etc., wherein the moving contact and the static contact The head is located in the vacuum interrupter 14, and one end of the movable conductive rod 15 is connected to the movable contact in the vacuum interrupter through the cover plate of the vacuum interrupter. In order to facilitate the clear representation of the present invention, figure 1 The vacuum circuit breaker in the structure is inverted with the actual vacuum circuit breaker.

[0016] The method of the present invention for detecting the contact wear of a vacuum circuit breaker is that a reflection device is arranged on the other end of the movable conducti...

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PUM

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Abstract

The invention discloses a method for detecting the abrasion amount on the contactor of vacuum circuit breakers, and a device thereof, wherein one end of the dynamic conductor pole of a vacuum circuit breaker is arranged with a reflecting device, the reflecting surface of the reflecting device is oppositely arranged with an incident light source and a reflected light receiver, the reflected light receiver receives the light emitted from the incident light source and reflected by the reflecting device. When the contactor is abraded, the angle position of the reflecting device changes, to cause the change of the receiving position of the light beam reflected by the reflecting device, the method measures the receiving position change of the reflected light beam, and utilizes the trigonometric function among the abrasion amount of the contactor, the incident light source, the reflected light receiver and the reflecting device, to calculate the abrasion amount of the contactor via a single chip and display the result on a display unit. The invention has the advantages of simple and fast operation, visual displayed measurement result and high measurement precision.

Description

technical field [0001] The invention relates to the field of electrical technology, in particular to a method and a device for detecting the wear amount of contacts of a vacuum circuit breaker in a high-voltage switch cabinet. Background technique [0002] After the contacts of the vacuum circuit breaker are worn to a certain size, they must be replaced in time to ensure the safe operation of the system. There are two existing methods for measuring the contact wear of a vacuum circuit breaker: one is the visual method, that is, the contact wear of the circuit breaker is measured by the operator's naked eye observation of the contacts of the circuit breaker. This method relies entirely on the operator's experience, has large subjective components, and has poor reliability. It is very easy to replace the circuit breaker contacts prematurely or overdue, resulting in waste of production resources or safety problems. Another method is to use a mechanical ruler for manual measure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/02
Inventor 王桂芝周庆强李明忠
Owner SHANGHAI WESTHOUSE SWITCHGEAR
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