| 一起电容式电压互感器电磁单元故障分析 |
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| 引用本文： | 陈明光,包玉树,张兴沛. 一起电容式电压互感器电磁单元故障分析[J]. 江苏电机工程, 2012, 31(5): 25-26,31 |
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| 作者姓名： | 陈明光 包玉树 张兴沛 |
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| 作者单位： | 1. 江苏省电力公司徐州检修分公司,江苏徐州,221000
2. 江苏方天电力技术有限公司,江苏南京,211102 |
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| 摘 要： | 介绍了一起220 kV电容式电压互感器(CVT)电磁单元一次引线断线导致设备二次绕组失压的故障案例,分析了可能导致该故障现象的原因,结合CVT的结构特点,在无法对此类设备进行解体检查的情况下,提出通过排除法和关联试验间接判断故障原因的方法,并对该类设备改进的方案进行了探讨.
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| 关 键 词： | 电容式电压互感器 电磁单元 故障 失压 |
Analysis of an Electromagnetic Unit Fault of Capacitor Voltage Transformer |
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| CHEN Ming-guang , BAO Yu-shu , ZHANG Xing-pei. Analysis of an Electromagnetic Unit Fault of Capacitor Voltage Transformer[J]. Jiangsu Electrical Engineering, 2012, 31(5): 25-26,31 |
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| Authors: | CHEN Ming-guang BAO Yu-shu ZHANG Xing-pei |
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| Affiliation: | 1.Jiangsu Electric Power Company’s Maintenance Branch,Xuzhou 221000,China; 2.Frontier Electric Technology Co.Ltd.,Nanjing 211102,China) |
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| Abstract: | A secondary voltage loss fault of 220 kV capacitor voltage transformer(CVT) is introduced.The fault was caused by primary lead disconnection in the electromagnetic unit of 220 kV CVT.Possible reasons for the fault phenomena are analyzed.Combined with the structural characteristics of CVT,a method of judging fault causes indirectly by exclusive method and correlation tests is proposed in the case that this kind of equipment can not be checked through disintegration.Discussions are given for improving this kind of equipment. |
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| Keywords: | capacitor voltage transformer electromagnetic unit fault voltage loss |
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