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Brake switch-off and switch-on controller of high voltage alternating-current circuit breaker

A high-voltage AC and circuit breaker technology, applied in the field of electric power, can solve problems such as insufficient switching distance, burnout of opening and closing line coils, etc., and achieve the effects of improving control energy, reliable operation, and fast speed

Active Publication Date: 2014-12-03
STATE GRID ZHEJIANG JIANDE POWER SUPPLY +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the auxiliary switch cannot be switched normally for some reason, or the switching distance is not enough, it may cause the coil of the opening and closing wires to burn out.

Method used

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  • Brake switch-off and switch-on controller of high voltage alternating-current circuit breaker
  • Brake switch-off and switch-on controller of high voltage alternating-current circuit breaker
  • Brake switch-off and switch-on controller of high voltage alternating-current circuit breaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0058] Such as figure 1 As shown, a high-voltage AC circuit breaker opening and closing controller of the present invention includes

[0059] Operating power supply 1, used to supply power to the controller;

[0060] The closing control interface circuit 5 and the opening control interface circuit 6 are used to receive the closing instruction signal and the opening instruction signal sent to the circuit breaker by the closing operation part 23 and the opening operation part 24;

[0061] The safety closing circuit 4, the closing coil 7 and the opening coil 8 are used to execute the closing command signal and the opening command signal sent by the closing operating part 23 and the opening operating part 24 to the circuit breaker;

[0062] Closing control outlet device 2, used to switch on or off the closing coil 7;

[0063] The opening control outlet device 3 is used to switch on or off the opening coil 8;

[0064] The closing operation member 23 is connected to the closing c...

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PUM

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Abstract

The invention discloses a brake switch-off and switch-on controller of a high voltage alternating-current circuit breaker. The controller comprises an operating power source, a brake switch-on control interface circuit, a brake switch-off control interface circuit, a brake switch-on control operating part, a brake switch-off operating part, a safety brake switch-on circuit, a brake switch-on coil, a brake switch-off coil, a brake switch-on control outlet device and a brake switch-off control outlet device, wherein the brake switch-on operating part is connected with the brake switch-on control interface circuit, the brake switch-on control interface circuit is connected with the control end of the brake switch-on control outlet device, the brake switch-off operating part is connected with the brake switch-off control interface circuit, and the brake switch-off control interface circuit is connected with the control end of the brake switch-off control outlet device. The brake switch-off and switch-on controller of the high voltage alternating-current circuit breaker is simple in structure, reliable in operation and low in cost. The brake switch-off and switch-on controller of the high voltage alternating-current circuit breaker is high in brake switch-off and switch-on speed, the brake switch-off speed is smaller than or equal to 15 ms, the brake switch-on speed is smaller than or equal to 35 ms, and the brake switch-off time and the brake switch-on time of the circuit breaker are effectively shortened.

Description

technical field [0001] The invention relates to the technical field of electric power, in particular to an opening and closing controller of a high-voltage AC circuit breaker. Background technique [0002] The existing opening and closing controllers of high-voltage AC circuit breakers are generally intelligent controllers with relatively complete functions, which contain intelligent circuits, but it takes a long time in the process of opening and closing. As a result, the medium-voltage circuit breaker The overall time of opening and opening and closing is long, which is not conducive to quickly removing the fault and restoring power supply during fast fault tripping and reclosing, causing the fault to cause great damage to the power grid. In addition, intelligent hardware and software are prone to failure when the power grid fails cause serious consequences. [0003] The opening and closing coils are designed according to the short-time energization. Normally, the cut-of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/00H01H9/54
Inventor 王春华王新明丁菊朱永书顾曹新宋玉锋顾明锋孟领刚姚卫东沈卫峰单金明陈夏媛王宗臣董金奇王春生
Owner STATE GRID ZHEJIANG JIANDE POWER SUPPLY
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