Study on the Motion Behavior and Partial Discharge Characteristics of Metal Particles in SF<sub>6</sub> Gas Under the Combined Action of Mechanical and Electrical

SONG Yanfeng; ZHENG Zhongyuan; YU Jinshan; SUN Yuan; ZHANG Zhaoyu; HOU Jiachen; WANG Haotian; HAN Xutao; LI Junhao

doi:10.7652/xjtuxb202307007

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Study on the Motion Behavior and Partial Discharge Characteristics of Metal Particles in SF₆ Gas Under the Combined Action of Mechanical and Electrical

更新时间：2025-07-09

- Study on the Motion Behavior and Partial Discharge Characteristics of Metal Particles in SF₆ Gas Under the Combined Action of Mechanical and Electrical
- Vol. 57, Issue 7, Pages: 74-83(2023)
- 作者机构：
  
  1. 西安交通大学电力设备电气绝缘国家重点实验室,西安,710049
  2. 国网天津市电力公司电力科学研究院,天津,300384
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202307007
  CLC： TM84
- Online First：10 July 2023，
  
  Published：2023
- 稿件说明：
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SONG Yanfeng, ZHENG Zhongyuan, YU Jinshan, et al. Study on the Motion Behavior and Partial Discharge Characteristics of Metal Particles in SF₆ Gas Under the Combined Action of Mechanical and Electrical[J]. 2023, 57(7): 74-83. DOI: 10.7652/xjtuxb202307007.
DOI：

SONG Yanfeng, ZHENG Zhongyuan, YU Jinshan, et al. Study on the Motion Behavior and Partial Discharge Characteristics of Metal Particles in SF₆ Gas Under the Combined Action of Mechanical and Electrical[J]. 2023, 57(7): 74-83. DOI: 10.7652/xjtuxb202307007. DOI：

摘要

为探究气体绝缘金属封闭开关设备内金属微粒在机械振动和高压电场联合作用下的放电运动特性

基于机械振动与交流电压联合试验平台

对不同机-电状态下自由金属微粒运动产生的超声波信号及放电信息进行测量

分析了机-电联合作用下金属微粒的放电特性及运动规律。试验结果表明:随着机械振动幅值、频率的增加

金属微粒的局部放电起始电压减小

且高振动频率时微粒放电分散性降低; 机-电联合作用下

放电活动更加剧烈

局部放电相位分布谱图分散性增大

超声飞行谱图整体保持三角脉冲群的典型特征

且脉冲群周期为工频周期; 随着机械振动、电压幅值的升高

飞行谱图不断向前发展

产生“双峰”和“三峰”的形态。研究结果有助于气体绝缘组合开关实际运行过程中自由金属微粒的检测与分析。

Abstract

To investigate the discharge and movement characteristics of metal particles in gas insulated switchgear(GIS)under joint effect of mechanical vibration and high-voltage field

based on the joint test platform of mechanical vibration and AC voltage

the ultrasonic signal and discharge information generated by the movement of free metal particles under various mechanical-electrical conditions are measured

and the discharge characteristics and movement rules of metal particles under combined mechanical-electrical action are analyzed. The results show that the partial discharge inception voltage(PDIV)of metal particles decreases with the increase of the amplitude and frequency of mechanical vibration

and the dispersion of particle discharge decreases at high vibration frequency. Under the combined mechanical-electrical action

the dispersion of phase resolved partial discharge spectrogram increases as the discharge activity intensifies. The ultrasonic flight spectrogram retains the typical characteristics of triangular pulse group as a whole

and the pulse group period is the power frequency period. With the increase of vibration and voltage amplitude

the flight spectrogram continues to develop

producing “dual peaks” and “triple peaks”. The research results of this paper are helpful to the detection and analysis of free metal particles during actual GIS operation.

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⁰

Study on the Motion Behavior and Partial Discharge Characteristics of Metal Particles in SF6 Gas Under the Combined Action of Mechanical and Electrical

DOI：10.7652/xjtuxb202307007

摘要

Abstract

关键词

Keywords

references

Study on the Motion Behavior and Partial Discharge Characteristics of Metal Particles in SF₆ Gas Under the Combined Action of Mechanical and Electrical