Novel gas circuit breaker with real-time adjustable air pressure

A gas circuit breaker, real-time control technology, applied in the direction of high-voltage air circuit breakers, circuits, electrical components, etc., can solve the problem of real-time performance that cannot be fundamentally solved, and achieve economic cost savings, increased success rate, and stable retention Effect

Inactive Publication Date: 2013-04-24
DALIAN UNIV OF TECH
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

This solution cannot fundamentally solve the real-time problem, or its response speed cannot keep up with the change of the disconnection situation

Method used

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  • Novel gas circuit breaker with real-time adjustable air pressure
  • Novel gas circuit breaker with real-time adjustable air pressure
  • Novel gas circuit breaker with real-time adjustable air pressure

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with accompanying drawing.

[0020] Such as figure 1 , 2 As shown, a new gas circuit breaker whose air pressure can be adjusted in real time includes a new magnetoelectric mechanism 3, an arc extinguishing chamber 1, an insulating support 2, a capacitor 4 and a control system 5, and a pressure sensor 1a is arranged inside the arc extinguishing chamber 1, The new magnetoelectric mechanism 3 is internally provided with a transmission rod 3a, a moving iron core 3b, a static iron core 3c, a main permanent magnet 3d, an auxiliary permanent magnet 3e, a coil 3f and a non-magnetic material 3g, and the arc extinguishing chamber 1 is insulated from The support 2 is connected, the insulating support 2 is connected with the transmission rod 3a, one end of the control system 5 is connected with the pressure sensor 1a, and the other end is connected with the coil 3f, and the gas pressure measured by the pressure ...

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Abstract

The invention relates to the technical field of electric engineering and machinery and discloses a novel gas circuit breaker with real-time adjustable air pressure. According to the novel gas circuit breaker, a pressure sensor is arranged inside an arc extinguish chamber; a transmission rod, a movable core, a static core, a primary permanent magnet, a secondary permanent magnet, a coil and a non-magnetic material are arranged inside a novel magneto-electric mechanism; the arc extinguish chamber is connected with an insulating post; the insulating post is connected with the transmission rod; one end of a control system is connected with the pressure sensor, and the other of the control system is connected with the coil; the gas pressure measured by the pressure sensor is acquired in real time and is fed back to the control system; and the discharging mode of a capacitor is regulated through logical judgment of the control system. Compared with the previous permanent magnet mechanism, the novel magneto-electric mechanism has the advantages that the structure and the working principle are different, reasonable static characteristic curves can be provided, and high retaining force can be provided at the switching-on/off positions. The on-off success rate of the gas circuit breaker is improved, and the novel gas circuit breaker is simple in structure, convenient to maintain and low in economic cost.

Description

technical field [0001] The invention relates to a novel gas circuit breaker whose air pressure can be adjusted in real time, and belongs to the technical field of electrical engineering and machinery. Background technique [0002] The circuit breaker is one of the important power equipment in the power system, and in the field of medium and high voltage power distribution, the gas circuit breaker occupies an absolute dominant position. Its working reliability is related to whether the power system can run normally and whether users can get timely protection from fault lines. The main working principle of the gas circuit breaker is to rely on high-pressure gas to blow the arc when the arc is generated, so as to take away the arc energy and restore the dielectric recovery strength between the fractures. This requires the gas circuit breaker to maintain a reasonable high pressure state at all times. It is not only related to the static insulation problem of the fracture, but m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/91H01H33/53
Inventor 董恩源刘美薇王永兴齐关秋
Owner DALIAN UNIV OF TECH
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