Permanent magnet vacuum circuit breaker capable of monitoring contact abrasion in vacuum arc-extinguishing chamber on line

A technology of vacuum interrupter and permanent magnet vacuum, applied in the direction of high-voltage air circuit breakers, circuits, electrical components, etc., can solve the problems of high cost, waste of time, lack of pertinence in maintenance, etc., and achieve convenient installation and use and application scalability Strong, direct and convenient viewing effect

Pending Publication Date: 2021-02-09
锦州森源电器有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

According to statistics, 10% of circuit breaker failures are caused by incorrect maintenance, and the overhaul of the circuit breaker completely disintegrates, which is a waste of time and expensive
Moreover, disassembly and reassembly will cause many new defects. In the current relatively conservative planned maintenance, the maintenance lacks certain pertinence

Method used

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  • Permanent magnet vacuum circuit breaker capable of monitoring contact abrasion in vacuum arc-extinguishing chamber on line
  • Permanent magnet vacuum circuit breaker capable of monitoring contact abrasion in vacuum arc-extinguishing chamber on line
  • Permanent magnet vacuum circuit breaker capable of monitoring contact abrasion in vacuum arc-extinguishing chamber on line

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0034] The present invention provides such Figure 1-9The shown permanent magnet vacuum circuit breaker with on-line monitoring of contact wear in the vacuum interrupter includes an insulating pull rod 1, and a permanent magnet mechanism 12 is provided on one side of the insulating pull rod 1. The permanent magnet mechanism 12 includes an upper yoke 17, an outer magnetic The yoke 18 and the lower yoke 24, the upper yoke 17, the outer yoke 18 and the lower yoke...

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Abstract

The invention discloses a permanent magnet vacuum circuit breaker capable of monitoring contact abrasion in a vacuum arc-extinguishing chamber on line, and relates to the field of permanent magnet vacuum circuit breakers, and the permanent magnet vacuum circuit breaker can directly indicate the abrasion thickness of a contact, is visual in expression mode and accurate in monitoring result, and also has the technical effects of being simple in structure, low in price, convenient to install and use and the like. A display window device is provided with a pointer fixed at the outer ring of the display shaft, and the pointer is connected with the insulating pull rod through a connecting structure between main body transmission and indirect transmission, so that the pointer can synchronously move along with the insulating pull rod, and the scale at the panel is changed along with the increase of the abrasion of the contact of the arc extinguishing chamber of the circuit breaker; whether theabrasion condition of the contact of the vacuum circuit breaker reaches a critical value or not is judged through the scale position of the pointer on the display window device; and compared with similar products, the circuit breaker has the characteristics of simple structure, direct and convenient viewing, strong application expansibility, high cost performance and the like.

Description

technical field [0001] The invention relates to the field of permanent magnet vacuum circuit breakers, in particular to a permanent magnet vacuum circuit breaker with on-line monitoring of contact wear in a vacuum interrupter chamber. Background technique [0002] The vacuum circuit breaker adopts the indoor permanent magnet high-voltage vacuum circuit breaker, and the unique permanent magnet operating mechanism with a life of 100,000 times makes the vacuum circuit breaker more suitable for frequent operation; its unique design of the insulating rod and the operating mechanism enables it to be online Detect the wear thickness of the contacts in the three-phase vacuum interrupter, so as to determine the service life of the vacuum interrupter, and change the "regular maintenance" of the existing circuit breaker into "condition maintenance". [0003] The circuit breaker is one of the key equipment of the power system, and its operating status has a great influence on the reliab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/668H01H33/66H01H33/666
CPCH01H33/66H01H33/666H01H33/668
Inventor 张学辉张文
Owner 锦州森源电器有限公司
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