Method and device for determining mechanical declination of high-voltage circuit breaker

Abstract

The invention provides a method and a device for determining the mechanical declination of a high-voltage circuit breaker. The method comprises the following steps that: obtaining the mechanical characteristic data of data obtained by a high-voltage circuit breaker type test, wherein the mechanical characteristic data comprises mechanical characteristic values corresponding to a plurality of discrete time points of each-time mechanical characteristic test in the type test; obtaining a standard reference mechanical characteristic value and a failure judgment value corresponding to each discretetime point; calculating the absolute value of the difference value of the mechanical characteristic value and the standard reference mechanical characteristic value of each-time mechanical characteristic test corresponding to the discrete time point to obtain a corresponding absolute value number sequence; carrying out curve fitting on the absolute value number sequence to obtain a declination curve corresponding to the discrete time point; and according to the standard reference mechanical characteristic value, the failure judgment value and the declination curve corresponding to each discrete time point, obtaining a mechanical characteristic declination ratio. Therefore, on the basis of the big data of the type test, the mechanical declination of the high-voltage circuit breaker is determined so as to be favorable for pre-judging the faults of the high-voltage circuit breaker in advance and favorably carrying out prevention.

Description

technical field [0001] The invention relates to the technical field of circuit breaker detection, in particular to a method and device for determining the mechanical degradation of a high-voltage circuit breaker. Background technique [0002] The high-voltage circuit breaker (or high-voltage switch) plays a control role in the high-voltage circuit and is one of the important electrical components in the high-voltage circuit. The high-voltage circuit breaker 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 and short-circuit current through the function of the relay protection device when the system fails. Cut-off capability, when a fault occurs in a certain part of the power system, the faulty part can be quickly removed from the system, reducing the scope of power outages, preventing the expansion of accidents, protecting various electrical equipment in the system from damage, and ensuring t...

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Problems solved by technology

[0004] In view of this, the present invention provides a method and device for determining the mechanical degradation of a high-voltage circuit breaker, an electronic device, and a computer-readable storage medium, which can determine the mechanical degradation of a high-voltage circuit breaker based on the big data of the type test, and solve the problem of It is impossible to judge the mechanical performance degradation of the high-voltage circuit breaker in actual operation, which is not conducive to predicting the failure of the high-voltage circuit breaker in advance and preventing it, which will cause the power system to fail.

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