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Circuit breaker operating mechanism and its force-reducing closing and holding device

It is a technology of closing holding and operating mechanism, which is applied to the power device inside the switch, etc. It can solve the problems of large opening time difference, large opening tripping force, and large space occupation, and achieves small opening time difference, open The effect of small tripping force and reliable opening operation

Active Publication Date: 2016-10-05
XIAMEN HUADIAN SWITCHGEAR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide a force-reducing closing and holding device that requires small opening and tripping force, small difference in opening time, modularization and small volume, and is easy to assemble and maintain. To solve the technical problems of large opening and tripping force required by the opening holding device in the prior art, large difference in opening time, large space occupation and loose mechanism

Method used

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  • Circuit breaker operating mechanism and its force-reducing closing and holding device
  • Circuit breaker operating mechanism and its force-reducing closing and holding device
  • Circuit breaker operating mechanism and its force-reducing closing and holding device

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Embodiment Construction

[0019] Some typical embodiments embodying the features and advantages of the present invention will be described in detail in the description in the following paragraphs. It should be understood that the present invention can have various changes in different embodiments, but none of them departs from the scope of the present invention, and the description and drawings therein are used as illustrations in nature, not to limit the present invention. invention.

[0020] The force-reducing closing and holding device of the embodiment of the present invention can be applied to the operating mechanism of the circuit breaker of the embodiment of the present invention. The operating mechanism of the circuit breaker in the embodiment of the present invention may have the force-reducing closing and maintaining device in the embodiment of the present invention.

[0021] Such as figure 1 As shown, the force-reducing closing and holding device of the embodiment of the present invention ...

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Abstract

The invention discloses a circuit breaker operating mechanism and its force-reducing closing and holding device. The force-reducing closing and holding device includes: a closing and holding latch assembly, including a closing and holding latch, a closing and holding latch shaft, The first inclined surface and the first roller, the closing holding pawl is in contact with the lever assembly used to transmit the force from the opening spring and the closing spring through the first inclined surface; the secondary pawl assembly includes a secondary A latch, a secondary latch shaft, a second slope and a second roller, the first end of the secondary latch is in contact with the first roller through the second slope; the opening latch assembly includes an opening The shaft of the detent assembly and a pair of first opening detents, the second end of the secondary detent is in contact with the detent detent assembly through the second roller; two opening electromagnets, with the A pair of first opening pawls cooperate. The invention requires small opening and tripping force, small difference in opening time, modularization and small volume, and is convenient for assembly and maintenance.

Description

technical field [0001] The invention relates to the field of power distribution equipment in a power system, in particular to a force-reducing closing and holding device for a circuit breaker operating mechanism and a spring operating mechanism with the force-reducing closing and holding device. Background technique [0002] The high-voltage circuit breaker is the core equipment in the field of power distribution equipment, the operating mechanism is the core component of the high-voltage circuit breaker, and the closing and holding device is the core component of the operating mechanism. The reliability of the closing and holding device is directly related to the reliability of the operating mechanism of the circuit breaker, thus determining the reliability of the high-voltage circuit breaker. Most of the closing and holding devices of the existing high-voltage circuit breaker operating mechanism are technologies imported from Mitsubishi Corporation of Japan. This closing a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H3/30
Inventor 郑闽生游一民张永福
Owner XIAMEN HUADIAN SWITCHGEAR
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