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Circuit breaker and operating mechanism thereof

An operating mechanism and operating unit technology, applied in the direction of high-voltage air circuit breakers, circuits, electrical components, etc., can solve problems such as the inability to guarantee the synchronization of breaks between breaks, and achieve high reliability, guaranteed synchronization, and good synchronization Effect

Pending Publication Date: 2019-04-16
XUJI GRP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an operating mechanism to solve the problem that the operating mechanism in the prior art cannot guarantee the breaking synchronization between the fractures; device

Method used

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  • Circuit breaker and operating mechanism thereof
  • Circuit breaker and operating mechanism thereof
  • Circuit breaker and operating mechanism thereof

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Embodiment Construction

[0029] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0030] An embodiment of the operating mechanism of the present invention, such as Figure 1 to Figure 4As shown, the operating mechanism is applied to a double-break circuit breaker. The base of the operating mechanism also includes two operating units arranged side by side. The operating unit includes an energy storage unit and a transmission mechanism 6 that can drive and cooperate with the energy storage unit. The transmission mechanism 6 has a power output part for force transmission and cooperation with the moving contacts between the corresponding breaks in the circuit breaker. The energy storage unit includes a closing energy storage part 5 and an opening energy storage part 10. The operation unit also includes a The operating unit keeps the closing detent at the closing energy storage position, the opening detent for keeping the operating unit at...

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Abstract

The invention relates to a circuit breaker and an operating mechanism thereof. The operating mechanism comprises at least two operating units which are arranged in parallel; each operating unit comprises an energy storage shaft and a transmission structure in transmission fit with the energy storage shaft; each operating unit comprises closing pawls used for keeping the operating unit at a closingenergy storage position, and opening pawls used for keeping the operating unit at a closing position; each operating mechanism further comprises a first locking part used for keeping the closing pawls synchronously, a second locking part used for synchronously keeping all the closing pawls; the first locking part has a first locking position and a first unlocking position, the second locking parthas a second locking position and a second unlocking position; and each operating mechanism further comprises a restoring structure used for restoring the opening pawls and the closing pawls. Transmission mechanisms in transmission fit with the energy storage unit in the two operating units are controlled to act synchronously, synchronous opening and closing of the corresponding moving contact are achieved, the reliability is high, and the synchronism of opening and closing motions is well guaranteed.

Description

technical field [0001] The invention relates to the field of high-voltage switches, in particular to a circuit breaker and its operating mechanism. Background technique [0002] With the continuous development of my country's economy, the capacity of the power grid continues to expand, forcing the voltage level to continue to increase. At present, in most high-voltage transmission fields in China, high-voltage circuit breakers are widely used. However, the vacuum circuit breakers in the existing market can only be used reliably in medium and low voltage power systems. Due to the saturation effect between the breakdown voltage between the fracture contacts and the gap length, it is only necessary to increase the gap between the fractures. There is a limit to increasing the withstand voltage level by distance, so the vacuum circuit breaker must have a higher breakdown voltage level to solve the problems of arc extinguishing and heavy breakdown. The use of double-break or mult...

Claims

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Application Information

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IPC IPC(8): H01H33/50
CPCH01H33/50
Inventor 王廷华吴小钊赵洪柏刘永庆白维正郑晓果李鹏穆三强师军伟周行
Owner XUJI GRP
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