Intelligent controller for split phase type quick permanent magnet vacuum circuit breaker

An intelligent controller and permanent magnet vacuum technology, applied in the direction of high-voltage air circuit breakers, circuits, electrical components, etc., can solve the problem of multiple safety hazards, and the control mechanism of split-phase fast permanent magnet vacuum circuit breakers is complicated, insensitive and controllable Sex and other issues, to achieve the effect of precise intelligent regulation and phase selection operation

Active Publication Date: 2013-06-19
CHUZHOU UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

The split-phase fast permanent magnet vacuum circuit breaker can realize intelligent phase splitting operation and intelligent phase selection operation under the split-phase intelligent control unit. On the other hand, it can reduce or even eliminate the operating overvoltage and closing inrush current generated by capacitor bank and transformer switching, which is beneficial to improve the stability of the power system and the service life of the circuit breaker. However, the split-

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  • Intelligent controller for split phase type quick permanent magnet vacuum circuit breaker
  • Intelligent controller for split phase type quick permanent magnet vacuum circuit breaker
  • Intelligent controller for split phase type quick permanent magnet vacuum circuit breaker

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[0041] The technical scheme of the invention will be described in detail below in conjunction with the drawings:

[0042] Split-phase permanent magnet vacuum circuit breaker such as figure 1 Shown is composed of three-phase circuit breakers with the same structure. Each phase circuit breaker includes: vacuum interrupter Ⅰ equipped with static contact Ⅰ-1 and movable contact Ⅰ-2, contact transmission rod Ⅱ, opening coil Ⅲ-1 by electromagnetic repulsion mechanism, eddy current plate Ⅲ-2 , Electromagnetic repulsion mechanism Ⅲ-a composed of electromagnetic repulsion mechanism closing coil Ⅲ-3, permanent magnet mechanism closing coil Ⅲ-4, permanent magnet Ⅲ-5, T-shaped moving iron core Ⅲ-6, permanent magnet mechanism opening coil Ⅲ-7. Permanent magnet mechanism Ⅲ-b composed of static iron core Ⅲ-8. The electromagnetic repulsion mechanism Ⅲ-a and the permanent magnet mechanism Ⅲ-b constitute the quick operating mechanism Ⅲ. Its working process is: when closing, the closing coil Ⅲ-4 ...

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Abstract

The invention discloses an intelligent controller for a split phase type quick permanent magnet vacuum circuit breaker and belongs to the technical field of intelligent low-voltage apparatus. The intelligent controller comprises a micro processor unit, a power supply unit, a coil control and drive unit, and a detection and display unit. The coil control and drive unit comprises a permanent magnetic mechanism brake closing and separating capacitor charging circuit, an electromagnetic repulsive force mechanism brake closing and separating capacitor charging circuit, a permanent magnetic mechanism brake closing and separating coil control circuit, an electromagnetic repulsive force mechanism brake opening and closing coil control circuit and a switching tube drive and protection circuit. Due to the introduction of the intelligent controller, the coordination and control of coil current of an electromagnetic repulsive force mechanism and a permanent magnetic mechanism can be realized, the permanent magnet vacuum circuit breaker can be accurately and intelligently regulated and controlled, and the phase selection operation of the permanent magnet vacuum circuit breaker can be realized.

Description

technical field [0001] The invention discloses an intelligent controller of a phase-splitting type fast permanent magnet vacuum circuit breaker, which belongs to the technical field of intelligent low-voltage electrical appliances. Background technique [0002] As the most critical power equipment in the smart grid, the performance of the permanent magnet vacuum circuit breaker directly affects the safe and reliable operation of the smart grid. In recent years, the permanent magnet vacuum circuit breaker with vacuum as insulation and arc extinguishing medium has been widely valued and generally welcomed by steel, metallurgy, mining, oil field and other industries. It has the advantages of small contact arc erosion rate and no exposure, strong breaking capacity, With the advantages of long working life, it can be used in harsh environments with high gas concentration and dust. The permanent magnet vacuum circuit breakers currently researched are all operated by a permanent m...

Claims

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Application Information

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IPC IPC(8): H01H33/666
Inventor 汪先兵倪受春林其斌黄恭伟候鹏亮王祥傲
Owner CHUZHOU UNIV
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