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A switch coil state indicating device for a circuit break in a high-voltage switch cabinet

A technology of high-voltage switchgear and opening and closing coils, which is applied in the direction of switchgear status indication, protection switch, emergency protection device, etc., to achieve the effect of simple wiring and easy realization

Pending Publication Date: 2019-01-08
湖北长江电气有限公司
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  • A switch coil state indicating device for a circuit break in a high-voltage switch cabinet

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Embodiment Construction

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] The present invention provides a circuit breaker opening and closing coil state indicating device in a high-voltage switch cabinet, which includes a closing coil state indicating circuit and an opening coil state indicating circuit, wherein,

[0028] The closing coil state indicating circuit includes a first indicator light and a first resistor connected in serie...

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Abstract

A switch coil state indicating device for a circuit break in a high-voltage switch cabinet is provided and includes a closing coil state indication circuit and a shunt coil state indication circuit, wherein the closing coil state indication circuit comprises a first indicator lamp and a first resistor connected in series with each other, and the closing coil state indication circuit and the closing coil are connected in series with a control circuit of a circuit breaker; The shutter coil status indicating circuit comprises a second indicator lamp and a second resistor connected in series witheach other, and the shutter coil status indicating circuit and the shutter coil are connected in series in a control circuit of the circuit breaker. As that correspond state indication circuits are connected in series in the control circuits where the closing coil and the shunt coil are locate, the state indication of the shunt coil is realized by controlling whether the indicator light in the state indication circuits is illuminated or not when the power is turned on, and the wiring is simple and easy to realize.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of electrical control, and more specifically, to a state indicating device for opening and closing coils of a circuit breaker in a high-voltage switch cabinet. Background technique [0002] The existing high-voltage switchgear (such as KYN28 high-voltage switchgear) controls the small busbar to basically meet the control requirements of the circuit breaker, including: (1) The closing and tripping coils of the circuit breaker are designed according to the short-term energization, that is, the opening and closing The gate switch is reset quickly after the action, so as to avoid the coil from burning out when tripping or closing; (2) There is a monitoring circuit for the control power supply. Once the control power supply loses power, the circuit breaker will not be able to operate, and an audible and visual signal will be sent to remind the relevant personnel in time. (3) There is an obvi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/04
CPCH01H71/04H01H2071/042
Inventor 平凡肖奇
Owner 湖北长江电气有限公司
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