Motor-driven high-voltage switch self-checking method and motor-driven high-voltage switch

Abstract

The invention belongs to the field of high-voltage switch equipment, and particularly relates to a motor-driven high-voltage switch self-checking method and a motor-driven high-voltage switch, the motor-driven high-voltage switch comprises a circuit breaker and a driving motor, a driving mechanism is used for driving a moving contact to perform opening and closing actions, and a controller is used for controlling the action of an operating mechanism. The controller can control the execution self-checking method of the operating mechanism. The method comprises the following steps of: 1, selecting a reference point on the driving mechanism and / or the moving contact; step 2, controlling the motor to slightly move within the closing and opening position range; and 3, extracting at least one of displacement information, speed information, current information and voltage information of the motor of the reference point in the detection action process as result information, and comparing the result information with the corresponding standard information to judge whether the motor-driven high-voltage switch has a fault which affects the normal opening and closing of the motor-driven high-voltage switch or not. Through the scheme, regular self-inspection of the motor-driven high-voltage switch can be realized, and faults can be found in time.

Description

technical field [0001] The invention belongs to the field of high-voltage switchgear, and in particular relates to a self-inspection method for a motor-driven high-voltage switch and a motor-driven high-voltage switch. Background technique [0002] The main function of the high-voltage switch is to act as a breaking component to control the breaking of the high-voltage circuit, which is an indispensable part to ensure the reliable operation of the high-voltage power grid. For the realization of the breaking function of the high-voltage switch, it is mainly reflected in the opening and closing operation between the moving contact and the static contact. [0003] Specifically, the high-voltage switch includes a circuit breaker, and the circuit breaker is provided with static contacts and moving contacts. Correspondingly, the high-voltage switch also has a driving mechanism, which drives a connecting rod to move, and the connecting rod drives the moving contact to move. For th...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a motor-driven high-voltage switch self-checking method to solve the problem in the prior art that the failure of the motor-driven high-voltage switch cannot be found in advance in time, resulting in the failure of the normal opening and closing operation of the motor-driven high-voltage switch to be carried out smoothly and reliably. Technical problem; the object of the present invention is also to provide a motor-driven high-voltage switch capable of implementing the above-mentioned high-voltage switch self-test method

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