A circuit breaker mechanical characteristic testing device

Abstract

The invention provides a circuit breaker mechanical characteristic testing device. A linear displacement sensor sliding rod of the testing device is coaxially connected with a moving contact pull rodof a to-be-tested circuit breaker. The device solves problems of rotation and lever phenomenon between the circuit breaker and the linear displacement sensor. The device would not cause the linear displacement sensor to be damaged in tests, so that a mechanical characteristic test result of the circuit breaker is more accurate. The device is simple in structure, and flexible in installation position, and can be adjusted, and stability and strength requirement of the circuit breaker mechanical characteristic testing device are ensured.

Description

technical field [0001] The invention belongs to the technical field of circuit breakers, in particular to a device for testing mechanical characteristics of circuit breakers. Background technique [0002] The circuit breaker is a commonly used control and protection device in the power transmission and distribution industry. It is the most important control device in the power system and the device with the most frequent actions. Its main function is to control and protect subordinate devices from being burned out. When the power grid fails, the circuit breaker can respond quickly to avoid damage, and the circuit breaker has a high failure rate during operation. Once the circuit breaker fails, it is easy to cause a grid accident and cause major economic losses. Therefore, The mechanical characteristic parameters of the circuit breaker must be guaranteed to be within the normal parameter range. If the parameters are not suitable, if the circuit breaker cannot be closed or sep...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a circuit breaker mechanical characteristic test device, which is used to solve the problem of inaccurate test results of circuit breaker mechanical characteristics in the prior art

[0007] The sliding rod of the linear displacement sensor of the present invention is coaxially connected with the pull rod of the moving contact of the circuit breaker to be tested, which solves the problems of rotation and leverage between the circuit breaker and the linear displacement sensor, and does not cause linear displacement during testing The sensor is damaged, so that the test results of the mechanical characteristics of the circuit breaker are more accurate. Its structure is simple, the installation position is flexible and adjustable, and the stability and strength requirements of the mechanical characteristic test device of the circuit breaker are guaranteed.

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