High-voltage circuit breaker operating spring performance evaluation method and system

Abstract

The invention discloses a high-voltage circuit breaker operating spring performance evaluation method. The method comprises the following steps: constructing a sample database; constructing a spring performance evaluation function; determining kernel density estimation in each observation direction based on the spring test sample library; and substituting the observed quantities of the target spring in different observation directions into the spring performance evaluation function to obtain a performance evaluation result of the target spring. According to the method, the spring performance is evaluated through the spring performance evaluation function, mathematical analysis is conducted on the multiple observation directions of the target spring with the kernel density estimation methodas the core, finally, the spring performance is evaluated through the spring performance evaluation function, and good evaluation accuracy and evaluation reliability are achieved. In addition, the invention also discloses a high-voltage circuit breaker operating spring performance evaluation system.

Description

technical field [0001] The invention relates to the detection field, in particular to a method and system for evaluating the performance of an operating spring of a high-voltage circuit breaker. Background technique [0002] High-voltage circuit breaker is one of the indispensable key equipment in the power system, which plays a vital role in the protection and control of the power grid. At present, the most widely used high-voltage circuit breaker mechanism type is the spring mechanism, and more than 90% of the circuit breakers use springs as their power source. Therefore, whether the spring performance in the circuit breaker mechanism is normal will directly affect the opening and closing speed of the circuit breaker, and even affect the circuit breaker. The arc extinguishing ability of the device in the opening and closing process. If the performance of the operating spring of the circuit breaker deteriorates during operation, it may cause spring breakage accidents, and ...

AI Technical Summary

Problems solved by technology

If the performance of the operating spring of the circuit breaker deteriorates during operation, it may cause spring breakage accidents, and may even cause the circuit breaker to explode during opening and closing.

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