Self-energy circuit breaker with rotary one-way valve

A one-way valve, circuit breaker technology, applied in circuit breaker parts, high-voltage air circuit breakers, circuits, etc., can solve the problem of the weak ability of circuit breakers to break current in small short circuits

Pending Publication Date: 2021-12-28
XIAN XD SWITCHGEAR ELECTIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Reflected in the breaking performance of the circuit breaker, it will be shown that the ability of the circuit breaker to break medium and small short-circuit breaking currents is relatively weak

Method used

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  • Self-energy circuit breaker with rotary one-way valve
  • Self-energy circuit breaker with rotary one-way valve
  • Self-energy circuit breaker with rotary one-way valve

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Embodiment Construction

[0041] The object of the present invention is to provide a self-energized circuit breaker with a rotary check valve. The structural design of the self-energized circuit breaker with a rotary check valve can effectively improve the capability of breaking medium and small short-circuit currents.

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0043] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "fron...

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PUM

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Abstract

A self-energy circuit breaker with a rotary one-way valve is disclosed in the invention, and comprises an air cylinder, a piston arranged in the air cylinder and a piston rod fixedly connected with the piston, one side of the piston is an expansion chamber, the other side of the piston is an air compression chamber, and the piston is provided with a vent hole to communicate the expansion chamber with the air compression chamber. The self-energy circuit breaker further comprises a one-way valve, the one-way valve comprises a valve plate which is rotationally connected with the piston and located on the side, facing the expansion chamber, of the piston, the valve plate rotates between a first position and a second position, when the valve plate is located at the first position, the valve plate blocks the vent hole, and when the valve plate is located at the second position, the angle between the valve plate and the piston is a preset angle value, and the preset angle value is smaller than 90 degrees. The structural design of the self-energy circuit breaker can effectively improve the capability of breaking small and medium current.

Description

technical field [0001] The invention relates to the field of electrical technology, and more specifically relates to a self-powered circuit breaker with a rotary check valve. Background technique [0002] The self-energy circuit breaker is a high-voltage AC circuit breaker that mainly uses the heat energy released by the arc to heat the gas and increase its pressure. [0003] SF 6 With its excellent insulation and breaking performance, circuit breakers have become one of the most widely used types of high-voltage circuit breakers in the world. However, as the voltage level increases, the requirements for the operating mechanism of the circuit breaker continue to increase. By adopting a self-energy circuit breaker, the circuit breaker can further reduce the operation required by the mechanism under the condition of breaking the same short-circuit current. It has a positive effect on reducing the difficulty of manufacturing the circuit breaker operating mechanism and improvi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H73/18H01H33/53
CPCH01H73/18H01H33/53
Inventor 史俊吉波波丁亮赵伟涛
Owner XIAN XD SWITCHGEAR ELECTIC CO LTD
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