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

A high-voltage switch, motor-driven technology, applied in high-voltage/high-current switches, electrical switches, high-voltage air circuit breakers, etc., can solve the problem that the normal opening and closing operation of motor-driven high-voltage switches cannot be carried out smoothly and reliably, and prevent burning. bad effect

CN114415003APending Publication Date: 2022-04-29PINGGAO GRP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2022-04-29

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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.
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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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Embodiment Construction

[0046] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention, that is, the described embodiments are only some of the embodiments of the present invention, but not all of the embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0047] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the...