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Asymmetric coil type gyromagnetic vacuum interrupter contact system

A contact system, asymmetric technology, applied in high-voltage air circuit breakers, electrical components, electrical switches, etc., can solve the problems of plasma and neutral particle diffusion and attenuation, reduce arc burning time, prolong switching Longevity, the effect of reducing the degree of ablation

Active Publication Date: 2017-02-15
SHENYANG POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But when the current crosses zero, the longitudinal magnetic field is very unfavorable to the diffusion and attenuation of plasma and neutral particles

Method used

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  • Asymmetric coil type gyromagnetic vacuum interrupter contact system
  • Asymmetric coil type gyromagnetic vacuum interrupter contact system
  • Asymmetric coil type gyromagnetic vacuum interrupter contact system

Examples

Experimental program
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Effect test

Embodiment Construction

[0026] As shown in the figure, the asymmetric coil type gyromagnetic vacuum interrupter contact system includes static conductive rod (1), A phase coil (2), B phase coil (3), conductive base (4), static contact Head piece (5), moving contact (6), moving conductive rod (7), first A-phase arm (8), first B-phase arm (9), second B-phase arm (10) and The second phase A crank arm (11).

[0027] see figure 1 As shown, the gap between the A-phase coil (2) and the B-phase coil (3) is 5-10 mm. The distance between the phase B coil (3) and the static contact piece (5) is 5-10 mm.

[0028] see figure 2 As shown, the first A-phase arm (8), the first B-phase arm (9), the second A-phase arm (11), and the second B-phase arm (10) are spatially different from each other by 90 0 .

[0029] see image 3 As shown, there are grooves on the static contact piece (5) to weaken the eddy current effect.

[0030] see Figure 4 As shown, there is a gap between the static conductive rod (1) and th...

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PUM

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Abstract

The invention discloses an asymmetric coil-type rotating magnetic vacuum arc extinguishing chamber contact system, which is characterized by comprising a static conductive rod, an A-phase coil, a B-phase coil, a conductive base, a static contact sheet, a moving contact, a moving conductive rod, a first A-phase crank arm, a first B-phase crank arm, a second B-phase crank arm and a second A-phase crank arm, wherein the static conductive rod is welded with the first A-phase crank arm and the second B-phase crank arm; the conductive base is welded with the second A-phase crank arm and the first B-phase crank arm; the conductive base is welded with the static contact sheet; the A-phase coil is welded with the first A-phase crank arm and the second A-phase crank arm; and the B-phase coil is welded with the first B-phase crank arm and the second B-phase crank arm. A rotating magnetic field can be generated between the contacts, arc energy can be quickly taken away through effects of the strong force of the rotating magnetic field, extinguishing of the arc can be facilitated, the opening and closing ability of a vacuum circuit breaker is improved, the ablation degree of the contact can be reduced, the contact structure can be protected, the service life of each contact is prolonged, mounting and maintenance are convenient, and operation reliability is high.

Description

technical field [0001] The invention relates to a vacuum interrupter contact, in particular to an asymmetric coil type gyromagnetic vacuum interrupter contact system, which belongs to the technical field of vacuum circuit breakers. Background technique [0002] In the power system, high-voltage switchgear plays the role of control and protection. High-voltage circuit breakers are the most important electrical equipment, mainly used for closing and breaking circuits. In recent years, with the rapid development of the electric power industry, the voltage level and capacity have been increasing day by day, and the demand for high performance and low pollution electricity has provided a broader research and development and application space for the development of vacuum circuit breakers. [0003] There are mainly two types of contact structures widely used at present: transverse magnetic contacts and longitudinal magnetic contacts. Among them, the transverse magnetic contact u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/664
CPCH01H33/6641
Inventor 刘晓明于德恩曹云东
Owner SHENYANG POLYTECHNIC UNIV
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