交流电压下GIS盆式绝缘子局部放电的发展特性

2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO) Pub Date : 2021-10-15 DOI:10.1109/AEERO52475.2021.9708247

Xiaohua Zhang, Zhirui Lv, Bin Huang, Guangjin Zhang, Junping Zhao, Zhaowei Peng, Xinsheng Ma, Yifan Qin

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引用次数: 0

摘要

附着在绝缘子表面的金属颗粒会严重扭曲沿表面的电场，诱发局部放电，甚至引起闪络，严重威胁设备的正常运行。局部放电检测是绝缘监督的重要手段之一。本文搭建了PD光电联合诊断实验平台。研究了交流电压下GIS用126kv盆式绝缘子局部放电的发展特性。随着外加电压的增加，从局部放电开始到接近闪络分为三个阶段。当金属颗粒位于盆型绝缘子的不同位置时，放电量随电压的变化趋势相同，均呈现先缓慢增加后呈指数增长的趋势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Development Characteristics of Partial Discharge of Basin-type Insulator for GIS Under AC Voltage

Metal particles attached to the insulator surface will seriously distort the electric field along the surface, induce partial discharge and even cause flashover, which seriously threatens the normal operation of the equipment. The detection of partial discharge is one of the important means of insulation supervision. In this paper, the experimental platform of PD photoelectric joint diagnosis was built. The development characteristics of partial discharge of 126 kV basin-type insulator for GIS under AC voltage were studied. With the increase of the applied voltage, three stages were founded from the beginning of partial discharge to the approaching flashover. When the metal particles are located at different positions of the basin-type insulator, the change trend of the discharge amount with the voltage is the same, and both show a slow increase first and then an exponential increase trend.

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来源期刊

2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO)

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