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Contact monitoring device for vacuum circuit breaker and vacuum circuit breaker with same

A technology of vacuum circuit breaker and monitoring device, which is applied to high-voltage air circuit breakers, optical devices, circuit breaker testing, etc. Reliability and performance, accurate contact wear, accurate detection effects

Pending Publication Date: 2022-04-12
LS ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the contact is not repaired or replaced in time, it will become the cause of the short-term performance, short-circuit performance and electrification performance of the vacuum interrupter

Method used

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  • Contact monitoring device for vacuum circuit breaker and vacuum circuit breaker with same
  • Contact monitoring device for vacuum circuit breaker and vacuum circuit breaker with same
  • Contact monitoring device for vacuum circuit breaker and vacuum circuit breaker with same

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Embodiment Construction

[0048]The above objects, features, and advantages will be described in detail below with reference to the accompanying drawings, so that those skilled in the art to which the present invention pertains can easily implement the technical idea of ​​the present invention. During the description of the present invention, if it is judged that the detailed description of the known technology related to the present invention may obscure the gist of the present invention, its detailed description will be omitted. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals refer to the same or similar structural elements.

[0049] Hereinafter, an arrangement of any constituent on "upper (or lower)" or "on (or lower)" of a structural element means that any constituent is configured to be in contact with the top (or bottom) face of the component, and may also mean that th...

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PUM

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Abstract

The invention provides a contact monitoring device for a vacuum circuit breaker. The contact monitoring device is arranged on the vacuum circuit breaker, the vacuum circuit breaker comprises a vacuum arc-extinguishing chamber and a push rod assembly, the vacuum arc-extinguishing chamber comprises a fixed electrode fixed in an insulating container, and a fixed contact is arranged at one end of the fixed electrode; and a movable electrode provided in the insulating container so as to be capable of rising and falling, one end of the vacuum arc-extinguishing chamber being provided with a movable contact that comes into contact with or separates from the fixed contact with the rising and falling of the movable electrode, and the push rod assembly being coupled to the other end of the movable electrode and causing the movable electrode to rise and fall. In addition, the invention also provides a vacuum circuit breaker with the contact monitoring device.

Description

technical field [0001] this invention [0002] The present invention relates to a contact monitoring device for a vacuum circuit breaker capable of monitoring the wear amount of contacts inside a vacuum interrupter, and a vacuum circuit breaker having the same. Background technique [0003] Vacuum circuit breakers are electrical protectors that use the dielectric strength of vacuum to protect load equipment and lines from fault currents when accidents such as short circuit or grounding occur in the circuit. [0004] Vacuum circuit breakers play the role of power transmission control and protection of power systems. The vacuum circuit breaker has a large breaking capacity and high reliability and safety. Not only that, but its application range is expanding from medium voltage to high voltage because it can be placed in a small installation space. [0005] The vacuum circuit breaker includes a vacuum interrupter as the core component of cutting current, a transmission devi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00G01B11/02H01H33/664
CPCH01H33/664H01H2001/0021H01H1/0015G01R31/327H01H33/662H01H33/666
Inventor 徐民圭
Owner LS ELECTRIC CO LTD