真型开关柜模拟缺陷下的局部放电试验研究

doi:10.11930/j.issn.1004-9649.201804075

摘要/Abstract

摘要： 由于目前开关柜带电检测数据多为间接状态量，难以直接反映开关柜内部局部放电量的大小，容易造成对缺陷的误判。为此利用真型开关柜搭建了开关柜缺陷模拟试验装置，首先利用该装置模拟针板放电缺陷，采用超声波检测法（AE）、暂态地电位检测法（TEV）、特高频检测法（UHF）与脉冲电流法（PC）的比对找出针板放电的规律，包括带电检测信号的典型图谱以及与局部放电量对应关系。最后针对该装置提出了后续的研究范围。

关键词: 开关柜, 局部放电, 带电检测, 试验装置, 针板放电

Abstract: Most of the live detection data of switch cabinet are indirect state quantities, which can hardly reflect the partial discharge values of switch cabinet and may easily cause erroneous judgment of defects. Therefore, a defect simulation test device is set up based on a real switch cabinet. Firstly, it is used to simulate the needle plate discharge. Then, the characteristics of needle plate discharge are identified through comparing the results of such detecting methods as acoustic emission, transient earth voltages, ultra high frequency and pulse current, including typical images of live detection signal and the relationship with PD values. Finally, subsequent research techniques for this device is put forward.

Key words: switch cabinet, partial discharge, live detection, test device, needle plate discharge

中图分类号:

TM83

范敏, 叶会生, 段肖力, 黄海波. 真型开关柜模拟缺陷下的局部放电试验研究[J]. 中国电力, 2019, 52(2): 134-138,143.

FAN Min, YE Huisheng, DUAN Xiaoli, HUANG Haibo. Partial Discharge Experiment Research under Simulated Defect of Real Switch Cabinet[J]. Electric Power, 2019, 52(2): 134-138,143.

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https://www.electricpower.com.cn/CN/Y2019/V52/I2/134

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