Vacuum Estimation Method for Vacuum Interrupter Based on Variation of X-ray

LI Wei1; GUO Yuan-yuan1; WANG Cheng-yu1; LONG Xi-ming2; GAO Hui2; LIU Wei-rong3

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Vacuum Estimation Method for Vacuum Interrupter Based on Variation of X-ray

更新时间：2025-04-26

- Vacuum Estimation Method for Vacuum Interrupter Based on Variation of X-ray
- High VoltageApparatus Issue 4, Pages: 315-318(2008)
- 作者机构：
  
  1. 中国电力科学研究院
  2. 陕西宝光集团有限公司
  3. 北京京东方真空电器有限责任公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM561.5
- Published：2008
- 稿件说明：
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[1]李炜,郭媛媛,王承玉,龙西明,高晖,刘伟荣.基于X射线量变化评估真空灭弧室真空度的方法[J].高压电器,2008(04):315-318.

LI Wei1, GUO Yuan-yuan1, WANG Cheng-yu1, et al. Vacuum Estimation Method for Vacuum Interrupter Based on Variation of X-ray[J]. High voltageapparatus, 2008, (4): 315-318.
[1]李炜,郭媛媛,王承玉,龙西明,高晖,刘伟荣.基于X射线量变化评估真空灭弧室真空度的方法[J].高压电器,2008(04):315-318. DOI：

LI Wei1, GUO Yuan-yuan1, WANG Cheng-yu1, et al. Vacuum Estimation Method for Vacuum Interrupter Based on Variation of X-ray[J]. High voltageapparatus, 2008, (4): 315-318. DOI：

摘要

为了找到一种操作简便且准确度高的方法来进行真空度评估

笔者提出了一种不需外施磁场、利用测量X射线量变化来判断真空灭弧室内部真空度的方法。对于真空灭弧室在指定开距下施加工频电压时

场致发射电子会以很高的速度从阴极表面逸出

在触头间电场的作用下加速轰击阳极

基于轫致辐射的原理会从阳极表面释放出X射线。这时

真空度的差异会使产生的X射线释放强度以及变化情况有所不同

因此

利用测量释放的X射线量的变化可判断真空灭弧室内部的真空度。笔者通过理论分析

得出了X射线量与真空度的关系

并进行了试验验证。

Abstract

In order to find a simple and higher accuracy approach to estimate the vacuum state in a vacuum interrupter

a method utilizing X-ray variation without exerting outer magnetic field was presented.The Field emission electrons escape from cathode surface at very high speed and bombard the anode when the vacuum interrupter is under power frequency voltage wiht a designated gap length.Based on the bremsstrahlung principle

the X-ray is released from the anode surface with varying intensities due to different vacuum states.The relationship between vacuum and X-ray intensity is derived and verified with test results.

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