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Impact-resistant and vibration-resistant release for medium-voltage breaker

A circuit breaker and shock-resistant technology, applied in the field of medium-voltage circuit breaker releases, can solve the problems that the release structure is prone to misoperation, does not have shock resistance, vibration resistance, and the circuit breaker cannot work normally.

Active Publication Date: 2013-07-17
SHANGHAI ELECTRICAL APP RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing trippers used on medium-voltage circuit breakers do not yet have the performance of shock and vibration resistance. Under the strong shock and vibration environmental conditions of the ship, the structural form of the tripper is prone to misoperation, making circuit breaker not working properly

Method used

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  • Impact-resistant and vibration-resistant release for medium-voltage breaker

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Embodiment Construction

[0011] In order to make the present invention more comprehensible, preferred embodiments are described in detail below with accompanying drawings.

[0012] Such as figure 1 As shown, a shock and vibration resistant medium voltage circuit breaker release provided by the present invention includes a balance bar 1, a moving iron core 2, a coil 3, a top bar 4, a bracket 5, a stopper 6, and a balance assembly 7 , fixed plate 8, rotating shaft 9 and guide rod 10.

[0013] The structural relationship between the above parts is: the moving iron core 2 is set in the coil 3, and its upper part is the ejector rod 4. After the coil 3 is energized, the moving iron core 2 moves upward; down movement. The moving iron core 2 is connected with the balance bar 1 through the fixed plate and the rotating shaft below. The guide rod 10 is riveted to the stopper 6 of the bracket 5 through the long waist hole in the middle of the balance pole 1 . The balance component 7 is installed in the round ...

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Abstract

The invention relates to an impact-resistant and vibration-resistant release for a medium-voltage breaker. The release is characterized by comprising a movable component capable of moving vertically automatically and a balancing component capable of moving vertically under vibration. An impact end of the movable component is used for impacting a bending plate on a release half shaft of the breaker to enable the breaker to be opened, and the other end of the movable component is connected with the balancing component through a balancing bar. The balancing bar can rotate around a connection point where the balancing bar is connected with the balancing component, a guide bar is arranged in the middle of the balancing bar in a penetrating mode, and a stop piece is arranged at the top end of the guide bar. When the balancing bar is contacted with the stop piece, the movable component stops moving upwards under the holding of the balancing component, and the impact end of the movable component is separated from the bending plate on the release half shaft of the release. The impact-resistant and vibration-resistant release has the advantages that the movable balancing component is added on the release, so that the release is provided with impact resistance and vibration resistance, and special requirements of ship environments are met.

Description

technical field [0001] The invention relates to an impact-resistant and vibration-resistant medium-voltage circuit breaker release, which belongs to the technical field of medium-voltage electrical appliances. Background technique [0002] Medium voltage circuit breakers are mainly responsible for overload, undervoltage and short circuit protection of distribution lines and electrical equipment. The release is an accessory of the medium-voltage circuit breaker. When the circuit is short-circuited, overloaded or receives an opening command, it is an actuator that implements the disconnection of the circuit breaker. It includes shunt tripping, over-current tripping and under-voltage tripping. Voltage tripping, etc. [0003] The existing trippers used on medium-voltage circuit breakers do not yet have the performance of shock and vibration resistance. Under the strong shock and vibration environmental conditions of the ship, the structural form of the tripper is prone to misop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/10
Inventor 周安康陆旻施金武顾烨华张小凯
Owner SHANGHAI ELECTRICAL APP RES INST
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