[1]李文燕,刘江明,张翾喆,等.电流互感器末屏断裂缺陷及其影响分析[J].电力电容器与无功补偿,2020,41(5):95-98,103.[doi:10.14044/j.1674-1757.pcrpc.2020.05.016]
 LI Wenyan,LIU Jiangming,ZHANG Xuanzhe,et al.Analysis of Current Transformer End Shield Breakage Defect and Its Influence[J].Power Capacitors & Reactive Power Compensation,2020,41(5):95-98,103.[doi:10.14044/j.1674-1757.pcrpc.2020.05.016]
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电流互感器末屏断裂缺陷及其影响分析()
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《电力电容器与无功补偿》[ISSN:1674-1757/CN:61-1468/TM]

卷:
41卷
期数:
2020年第5期
页码:
95-98,103
栏目:
配套设备
出版日期:
2020-10-30

文章信息/Info

Title:
Analysis of Current Transformer End Shield Breakage Defect and Its Influence
作者:
李文燕刘江明张翾喆艾云飞周杰刘昌标谢斯晗
国网浙江省电力有限公司检修分公司,杭州311232
Author(s):
LI WenyanLIU JiangmingZHANG XuanzheAI YunfeiZHOU Jie LIU ChangbiaoXIE Sihan
State Grid Zhejiang Electric Power Corporation Maintenance Branch,Hangzhou 311232,China
关键词:
电容型电流互感器电容量末屏异常
Keywords:
capacitivecurrenttransformercapacitanceendshielddefect
DOI:
10.14044/j.1674-1757.pcrpc.2020.05.016
文献标志码:
A
摘要:
电流互感器是电力系统中重要的电力设备,运行过程中易发生绝缘故障。针对一起电容 型电流互感器电容量偏小异常案例,通过试验、解体分析查明了异常原因为末屏存在断裂缺陷。根 据绝缘结构设计原理建立等效电路模型,结合试验情况计算了异常设备末屏断裂产生的悬浮电位 差,总结了末屏断裂位置对悬浮电位差的影响,并指出了针对该类缺陷的有效检测方法,对电容型 电流互感器电容量异常的分析和处置起到了一定借鉴作用。
Abstract:
Current transformer is important electrical equipment in power systemsand is prone to insulation failure during operation. In view of small and abnormal capacitance of capacitive current transformer,it is checked throughout test,disassembly analysis that the abnormal reason is due to breakage defect at the end shield. The equivalent circuit model is set up based on the principle of insulation structure design and the suspension potential difference caused by the end shield breakage of the abnormal equipment is calculated in accordance with test situation,the influence of the end shield breakage position on the suspension potential is summarized and the effective detection method for such defect is pointed out,which has a definite reference in the analysis and treatment of the abnormal capacitance of the capacitive current transformer.

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备注/Memo

备注/Memo:
收稿日期:2020?02?25
作者简介: 李文燕(1989—),女,工程师,从事高压电气设备状态检 测及诊断工作。 刘江明(1978—),男,高级工程师,从事电气试验研究及 管理工作。 张翾喆(1989—),男,工程师,从事高压电气设备状态检 测及管理工作。 艾云飞(1989—),男,工程师,从事高压电气设备状态检 测及诊断工作。 周杰(1985—),男,工程师,从事高压电气设备状态检测 及诊断工作。 刘昌标(1989—),男,工程师,从事高压电气设备状态检 测及诊断工作。 谢斯晗(1991—),男,工程师,从事高压电气设备状态检 测及诊断工作。
更新日期/Last Update: 2020-10-30