Megavolt low jitter multi-stage corona switch

A low-jitter and corona technology, applied in circuits, electrical components, spark gaps, etc., can solve the problems of limited breakdown voltage, difficult to apply pulse power devices, etc., to reduce the electric field enhancement coefficient, low breakdown voltage jitter, The effect of increasing the breakdown voltage

Active Publication Date: 2018-06-26
NORTHWEST INST OF NUCLEAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the commonly used corona switch adopts a single-stage "pin-plate" structure, its breakdown voltage is limited to hundreds or tens of kilovolts, and it is difficult to apply to pulse power devices at the megavolt level.

Method used

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  • Megavolt low jitter multi-stage corona switch
  • Megavolt low jitter multi-stage corona switch
  • Megavolt low jitter multi-stage corona switch

Examples

Experimental program
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Embodiment Construction

[0030] A megavoltage low-jitter multi-stage corona switch is composed of a knife-shaped electrode 1, a plate electrode 2, a first insulator 3, a screw rod 4, and a second insulator 5. A hole is opened between the knife electrode 1 and the plate electrode 2 for embedding the first insulator 3 . Apply F46 glue on the joint surface of the knife electrode 1, the plate electrode 2 and the first insulator 3. Press the first insulator 3 into the through holes on the knife-shaped electrode 1 and the plate electrode 2, and then put it in a high-temperature environment, so that the F46 adhesive layer is cured by heat to ensure that the knife-shaped electrode 1, the plate electrode 2 and the first insulator 3 Bonding is firm. The first insulator 3 is engraved with internal threads, and the screw rod 4 is engraved with external threads correspondingly, and the two are screwed together through threads. The second insulator 5 is threadedly connected with the screw rod 4, and the second in...

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PUM

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Abstract

A megavolt low jitter multistage corona switch comprises a knife structure electrode 1, a plate electrode 2, a first insulator 3, a screw 4 and a second insulator 5. The corona switch comprises multi-stage corona intervals which employ knife-board structure; the electrode of each corona interval is adjustable; and sulfur hexafluoride gas is supplied to the corona switch. When the switch works, one-stage corona interval is preferentially broken down, and other corona intervals are broken down in the overvoltage. Because the structure of each-stage corona interval is the same, the breakdown voltage of each corona interval is the same. The structure with the same corona interval cascading ensures the low breakdown voltage jitter, reduces the electric field enhancement coefficient, improves the breakdown voltage of the corona intervals and ensures that the corona intervals of overvoltage breakdown have enough high undervoltage rate so as to obtain fast output pulse front edge.

Description

technical field [0001] The invention belongs to the technical field of pulse power, and relates to a megavolt low-jitter multi-stage corona switch. Background technique [0002] The corona switch is a low jitter repetition rate gas switch. The corona switch uses the principle of corona stabilization to achieve high frequency and low jitter operation, and is widely used in the field of pulse power. The field enhancement factor is the ratio of the maximum value to the average value of the electric field. According to the size of the field enhancement coefficient, the electric field with a field enhancement coefficient of 1 is a uniform field; the electric field with a field enhancement coefficient between 1 and 4 is a slightly inhomogeneous field; the electric field with a field enhancement coefficient greater than 4 is a very inhomogeneous field. Corona discharge is a form of self-sustained discharge in an extremely inhomogeneous field. Under repeated frequency working con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01T1/22
CPCH01T1/22
Inventor 高鹏程曾搏程杰李锐苏建仓邱旭东喻斌雄张瑜徐秀栋
Owner NORTHWEST INST OF NUCLEAR TECH
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