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Arc extinguish chamber structure for lifting arc voltage

An arc voltage and arc extinguishing chamber technology, applied in high-voltage air circuit breakers, high-voltage/high-current switches, circuits, etc., can solve the problems of low arc voltage amplitude and insignificant step change, and improve the arc voltage amplitude. And jump, improve the breaking capacity, the effect of lengthening

Active Publication Date: 2012-06-27
XIAN HIGH VOLTAGE APP RES INST CO LTD
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  • Summary
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AI Technical Summary

Problems solved by technology

[0002] At present, in the high-voltage switch, the discharge volume of the air flow channel in the arc extinguishing chamber of most circuit breakers is proportional to the stroke and speed of the movement, and the arc voltage shows a steady-state change trend, and the arc voltage amplitude is low, and the step change not obvious

Method used

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  • Arc extinguish chamber structure for lifting arc voltage

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Embodiment Construction

[0012] The structural principle and working principle of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0013] see figure 1 , the present invention includes a static arc contact 10 and a static main contact 1 arranged on the periphery of the static arc contact 10, the static arc contact 10 and the static main contact 1 are fixed ends, and the static arc contact 10 The opposite side is provided with a support seat 6, on which the cylinder 5 and the piston 7 of the vent hole 11 are fixed, the cylinder 5 is set with a moving main contact 4 capable of moving along the cylinder 5, and the piston 7 is set with a A hollow structure moving along the piston 7 and a pull rod 8 with a pull rod round hole 12 and a long hole 13, the moving main contact 4 and the pull rod 8 are connected through the connecting seat 3, and the front end of the pull rod 8 is equipped with an inner hole with an extended contact surface The movi...

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Abstract

The invention relates to the field of manufacturing and design of high-voltage switches and discloses an arc extinguish chamber structure for lifting an arc voltage. The structure comprises a fixed piston and a pull rod moving in an inner hole of the piston; a relative position of an air current channel is designed to realize staged blocking and opening; and simultaneously the structure has an extended moving arc contact surface, so that the variation range of an arc length is enlarged. The structure can increase the amplitude and jump of the arc voltage and fulfills the aim of enhancing the breaking direct current, the volume and the sensitive small-current breaking capacity of a circuit breaker.

Description

technical field [0001] The invention relates to the field of high-voltage switch manufacture and design, in particular to an arc extinguishing chamber structure for increasing arc voltage. Background technique [0002] At present, in the high-voltage switch, the discharge volume of the air flow channel in the arc extinguishing chamber of most circuit breakers is proportional to the stroke and speed of the movement, and the arc voltage shows a steady-state change trend, and the arc voltage amplitude is low, and the step change Not obvious. Contents of the invention [0003] The object of the present invention is to provide an arc extinguishing chamber structure capable of increasing the arc voltage amplitude and jump of the circuit breaker during the breaking process, thereby improving the breaking capacity of the circuit breaker for direct current, capacitive and inductive small current breaking. [0004] In order to achieve the above-mentioned purpose, the technical solu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/91
Inventor 高文张文兵焦秋忠彭磊
Owner XIAN HIGH VOLTAGE APP RES INST CO LTD
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