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Multi-nozzle cascade type plasma jet-triggered high-voltage switch

A high-voltage switch, plasma technology, applied in the direction of plasma, electrical components, reactive power adjustment/elimination/compensation, etc., can solve the problems of limited range and the gap length can not be too long, to balance reactive power, improve work Voltage, reliable triggering effect

Inactive Publication Date: 2016-07-20
XI AN JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The gap gas of this type of switch is mainly air, SF 6 , N 2 or SF 6 and N 2 The mixed gas, and under a certain gap gas pressure, the plasma jet length has a certain limit, so the gap length of the switch can not be too long, thus limiting its operating voltage
Due to the limitation of operating voltage, the application range of this type of switch is limited

Method used

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  • Multi-nozzle cascade type plasma jet-triggered high-voltage switch
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  • Multi-nozzle cascade type plasma jet-triggered high-voltage switch

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Embodiment Construction

[0010] Attached below figure 1 -2 and specific embodiment further illustrate the concrete content of this invention:

[0011] In one embodiment, the present invention discloses a multi-nozzle cascade plasma injection trigger high voltage switch;

[0012] The high-voltage switch includes a plurality of excitation cavities distributed around the main electrode gap of the high-voltage switch for injecting plasma.

[0013] The number of excitation cavities in this embodiment is related to the working voltage of the switch. The higher the working voltage of the switch, the longer the gap, the higher the resistance point strength of the main gap, and the more the number of excitation cavities. Therefore, the specific number needs to be determined according to the actual situation. To decide.

[0014] In this embodiment, a cascaded plasma injection trigger high-voltage switch is designed. The polarity arrangement of the switch electrodes is flexible, and the multi-channel plasma in...

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Abstract

The invention provides a multi-nozzle cascade type plasma jet-triggered high-voltage switch. The arrangement mode of the polarities of switch electrodes is relatively flexible; the cascade jet structure is in a stepped spiral form; and excitation cavities surround the peripheries of a main electrode gap and are used for generating plasmas. In a test, generated plasmas can be jet to the main gap by controlling related structure parameters and electric parameters of a jet cavity, and are evenly arranged in the axial direction of the main electrode gap, so that the electric strength of the main gap is reduced; and breakdown of the main gap is finished. By a multi-nozzle cascade type plasma jet trigger technology, the switch can be reliably triggered under the conditions of a long gap and a low working coefficient; in a power system, capacitor banks are switched through quick action of the switch; and reactive power is balanced.

Description

Technical field: [0001] The invention relates to the technical field of jet plasma generation devices, in particular to a multi-nozzle cascade plasma jet trigger high-voltage switch. Background technique: [0002] Plasma jet-triggered gas switches have great application potential due to their low operating coefficient and low jitter. The gap gas of this type of switch is mainly air, SF 6 , N 2 or SF 6 and N 2 The mixed gas, and under a certain gap gas pressure, the length of the plasma jet is limited, so the gap length of the switch should not be too long, thereby limiting its operating voltage. Due to the limitation of the operating voltage, the application range of this type of switch is limited. Invention content: [0003] Based on this, the present invention discloses a multi-nozzle cascade plasma injection trigger high-voltage switch; [0004] The high-voltage switch includes a plurality of excitation cavities distributed around the main electrode gap of the hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05H1/44H02J3/18
CPCH02J3/18H05H1/44Y02E40/30
Inventor 刘轩东沈曦冯磊李志兵颜湘莲
Owner XI AN JIAOTONG UNIV
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