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High-voltage circuit breaker adopting built-in type operating mechanism

A high-voltage circuit breaker and operating mechanism technology, applied in the field of high-voltage circuit breakers, can solve problems such as unsatisfactory application effects, and achieve the effects of simple and reliable structure, easy implementation, and convenient replacement.

Inactive Publication Date: 2016-04-20
CHINA ELECTRIC POWER RES INST +4
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The utility model patent with the application number 2009200898620 proposes a mechanical linkage high-voltage circuit breaker, and the invention patent with the application number 2009100645496 proposes a high-voltage circuit breaker connector and a high-voltage circuit breaker using the connector. The two patents only describe a local single Parts, the actual application effect is not ideal

Method used

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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0032] The invention provides a high-voltage circuit breaker adopting a central operating mechanism, such as figure 1 , the high-voltage circuit breaker includes a phase A porcelain bushing, a B phase porcelain bushing, a C phase porcelain bushing, a central operating mechanism and a transmission structure;

[0033] The A-phase porcelain sleeve, B-phase porcelain sleeve, and C-phase porcelain sleeve all include an upper porcelain sleeve 18, a lower porcelain sleeve 19 and a wiring board, and the upper porcelain sleeve 18 and the lower porcelain sleeve 19 are connected through a wiring board, and the upper The interior of the porcelain sleeve 18 and the lower porcelain sleeve 19 are respectively provided with an arc extinguishing chamber 17 and an insulating pull rod 16. One end of the insulating pull rod 16 is connected to the arc extinguishing chamber 17, an...

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Abstract

The invention provides a high-voltage circuit breaker adopting a built-in type operating mechanism, wherein the high-voltage circuit breaker comprises an A phase ceramic sleeve, a B phase ceramic sleeve, a C phase ceramic sleeve, a built-in type operating mechanism and a transmission mechanism; each of the A phase ceramic sleeve, the B phase ceramic sleeve and the C phase ceramic sleeve comprises an upper ceramic sleeve, a lower ceramic sleeve and a wiring board, the upper ceramic sleeve and the lower ceramic sleeve are connected through the wiring board, an arc extinguish chamber is arranged in the upper ceramic sleeve, a insulated pull rod is arranged in the lower ceramic sleeve, one end of the insulated pull rod is connected with the arc extinguish chamber, and the other end and the built-in type operating mechanism are connected with the transmission mechanism separately. According to the invention, a driving motor is arranged on the middle part of the high-voltage circuit breaker to realize the balance and transmission of the actuating force; a permanent magnet synchronous motor adopted by the circuit breaker replaces a spring operating mechanism, so that the mechanism and components are simplified, can be change conveniently and control flexibly; the structure of the circuit breaker has small rotational inertia and light weight, and is simple, reliable and easy to realize.

Description

technical field [0001] The invention relates to a circuit breaker, in particular to a high-voltage circuit breaker adopting a central operating mechanism. Background technique [0002] Due to the high failure rate, poor stability and complex mechanical structure of the traditional high-voltage circuit breaker operating mechanism, it brings great safety hazards to the safe operation of the power system. In recent years, a new type of operating mechanism using a motor to drive a high-voltage circuit breaker has been proposed, which can solve the above problems. However, in the process of actual design and engineering application, it is found that due to the large operating work required for the opening and closing of the high-voltage circuit breaker, the moment of inertia of the entire transmission structure is too high, so the requirements for the acceleration, overload capacity and dynamic response capacity of the motor are very high. This has brought great obstacles to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/10H01H3/26
CPCH01H71/10H01H3/26
Inventor 冯英王承玉武建文汪建成解克佳伍勃金逸费益军
Owner CHINA ELECTRIC POWER RES INST
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