Research on Plate Electrode Aging Experiment for Vacuum On-load Tap-changers

LIU Xinyue; LI Xiaozhao; ZHAO Fangshuai; GUO Runtao; GU Fengjuan; GUO Jing; ZHAO Ziqiao; SHI Zongqian; SUN Jiajia; MO Yongpeng

doi:10.13296/j.1001-1609.hva.2026.02.027

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Research on Plate Electrode Aging Experiment for Vacuum On-load Tap-changers

Technical Discussion | 更新时间：2026-03-16

- Research on Plate Electrode Aging Experiment for Vacuum On-load Tap-changers
- High Voltage Apparatus Vol. 62, Issue 2, Pages: 223-229(2026)
- 作者机构：
  
  天津平高智能电气有限公司，天津 300300
  西安交通大学电力设备电气绝缘国家重点实验室，西安 710049
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2026.02.027
  CLC：
- Received：21 July 2025，
  
  Revised：2025-10-11，
  
  Published：16 February 2026
- 稿件说明：
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LIU Xinyue, LI Xiaozhao, ZHAO Fangshuai, et al. Research on Plate Electrode Aging Experiment for Vacuum On-load Tap-changers[J]. High Voltage Apparatus, 2026, 62(2): 223-229.
DOI：

LIU Xinyue, LI Xiaozhao, ZHAO Fangshuai, et al. Research on Plate Electrode Aging Experiment for Vacuum On-load Tap-changers[J]. High Voltage Apparatus, 2026, 62(2): 223-229. DOI： 10.13296/j.1001-1609.hva.2026.02.027.

摘要

为研究老炼对电极表面状况及燃弧过程的影响，在可拆卸真空灭弧室中对真空有载分接开关用平板电极进行了老炼实验，使用高速摄像机拍摄了燃弧图像，使用示波器采集了电压电流波形。对比分析了不同老炼程度下的阴极斑点运动状态及电弧电压波形，实验结果表明，随着老炼的进行，在阴极斑点的清洁作用下，电极表面的污染物被逐渐清除，阴极斑点运动更加稳定，电弧电压降低并且波动减小。

Abstract

For studying the influence of aging on electrode surface and arcing process

the aging experiments of plane electrode for vacuum on-load tap-changer are carried out in a demountable vacuum interrupter. The arcing image is taken by a high-speed camera

and the voltage and current waveforms are acquired by oscilloscope. The motion condition of cathode spot and arc voltage waveform under different aging are compared and analyzed. Experiment result show that with the conduction of aging

the contaminant on the electrode surface is removed gradually under the cleaning effect of cathode spots. The cathode spots are more stable in movement

the arc voltage is decreased and its fluctuation is reduced.

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references

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