Testing device for fatigue of operation spring of high-voltage circuit breaker

Abstract

The invention relates to the technical field of testing of fatigue of an operation spring of a circuit breaker and in particular discloses a testing device for the fatigue of an operation spring of a high-voltage circuit breaker. The testing device comprises an intelligent handheld collection probe, a testing module which is connected with the intelligent handheld collection probe through an automatic electronic switching circuit, communication interfaces connected with an upper computer and a storage module, wherein the testing module is connected with the upper computer through a filtering and amplifying circuit, a multi-way switch and an A / D (Analogue / Digital) converter in sequence; the testing module comprises a magnetic memory sensor and a plurality of sensors which are used for detecting vortex and have different frequencies; the multi-way switch is connected with a power supply through a DC / DC (Direct Current / Direct Current) converter; the intelligent handheld collection probe is further connected with a temperature sensor and a reversible photoelectric encoder; the temperature sensor and the reversible photoelectric encoder are connected with the multi-way switch; the communication interfaces comprise a USB (Universal Serial Bus) interface and an RS232 interface. The testing device provided by the invention has the advantages of light equipment, high sensitivity and simplicity for operation, can be used for detecting a fatigue index of the spring and can provide data analysis.

Description

technical field [0001] The invention relates to the technical field of testing the fatigue degree of an operating spring of a circuit breaker, in particular to a device for testing the fatigue degree of an operating spring of a high-voltage circuit breaker. Background technique [0002] The high-voltage circuit breaker is an important switchgear in the power equipment, which plays the role of control and protection. It is one of the important factors that determine whether the power system can supply power safely; and the operating spring is a key component that determines the performance of the circuit breaker. It directly affects the technical performance of the circuit breaker. The opening and closing operation of the spring operating mechanism is realized through the opening and closing operation spring. [0003] Due to the sudden fracture of the operating spring of the high-voltage circuit breaker and the lack of effective means to monitor it, it is of great significan...

AI Technical Summary

Problems solved by technology

Mainly include: the diversity of spring materials; the non-standard spring manufacturing process; hidden faults are invisible and difficult to be found; lack of simple and portable testing methods

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