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Method for detecting arc extinguishing performance of circuit breaker

A detection method and technology for circuit breakers, which are applied in circuit breaker testing, instruments, measuring electricity, etc., to achieve the effect of a wide range of applications

Inactive Publication Date: 2019-10-18
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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  • Claims
  • Application Information

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Problems solved by technology

[0004] This application provides a method for detecting the arc extinguishing performance of a circuit breaker to solve the problem that a general method is urgently needed in the electric power industry to detect the arc extinguishing performance of a circuit breaker

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  • Method for detecting arc extinguishing performance of circuit breaker
  • Method for detecting arc extinguishing performance of circuit breaker

Examples

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Embodiment Construction

[0036] The embodiments will be described in detail hereinafter, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following examples do not represent all implementations consistent with this application. These are merely examples of systems and methods consistent with aspects of the present application as recited in the claims.

[0037] see figure 1 , to facilitate the understanding of the method for detecting the arc extinguishing performance of the circuit breaker described in the following embodiments.

[0038] The application provides a method for detecting arc extinguishing performance of a circuit breaker, which includes the following steps:

[0039] S101, attaching the vibration sensor to the circuit breaker shell, receiving the vibration signal ...

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Abstract

The invention belongs to the technical field of electrical equipment detection, and particularly relates to a method for detecting arc extinguishing performance of a circuit breaker. A large number ofcircuit breakers are in a power grid, but the arc extinguishing methods of different types of circuit breakers are different, and a general method for detecting the arc extinguishing performance of the circuit breakers is needed. The invention provides a method for detecting arc extinguishing performance of a circuit breaker. The arc extinguishing performance of the circuit breaker is judged according to the electromagnetic wave signal and the arc duration time by detecting the electromagnetic wave signal radiated by a switch arc generated in the switching-on and switching-off process of thecircuit breaker. The method for detecting the arc extinguishing performance of the circuit breaker is wide in application range, and can achieve the detection purpose for various types of circuit breakers; and the arc extinguishing performance of the circuit breaker is judged by acquiring electromagnetic wave signals of the circuit breaker in the states of putting into operation, different operation years and reaching the service life, and the actual production requirement in the power industry is met.

Description

technical field [0001] The present application relates to the technical field of electrical equipment detection, in particular to a method for detecting arc extinguishing performance of a circuit breaker. Background technique [0002] There are a large number of circuit breakers in the power grid, which play the role of control and protection. It can not only cut off or close the no-load current and load current in the high-voltage circuit, but also cut off the overload current through the function of the relay protection device when the system fails. And short-circuit current, it has a fairly complete arc extinguishing structure and sufficient current breaking capacity. High-voltage circuit breakers mainly include vacuum circuit breakers, SF6 circuit breakers, compressed air circuit breakers, etc., but the arc extinguishing methods of different types of circuit breakers are different. Therefore, finding a general method to detect the arc extinguishing performance of circui...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327
CPCG01R31/3272
Inventor 马宏明程志万钱国超马仪王伟彭兆裕何顺杨明昆邱鹏锋
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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