| 一起220 kV电容式电压互感器二次电压异常故障的处理及分析 |
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| 引用本文： | 黄晓峰,吴胥阳,王益旭,王颖剑,张健聪.一起220 kV电容式电压互感器二次电压异常故障的处理及分析[J].东北电力技术,2020(1):49-51,56. |
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| 作者姓名： | 黄晓峰 吴胥阳 王益旭 王颖剑 张健聪 |
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| 作者单位： | 国网金华供电公司 |
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| 摘 要： | 电容式电压互感器作为一次电压监测设备,其性能直接影响着二次电压的准确采集和继电保护的正常工作。首先介绍了电容式电压互感器的典型结构,并针对一起220 k V母线电容式电压互感器二次电压异常故障的处理过程进行了详细介绍,最终解体发现由于电容式电压互感器电磁单元一次线圈的短路烧蚀造成了这起故障。最后对预防此类故障的发生提出了相关建议。
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| 关 键 词： | 电容式电压互感器 电磁单元 二次电压 解体分析 |
Treatment and Analysis of Abnormal Secondary Voltage Case for 220 kV Capacitor Voltage Transformer |
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| HUANG Xiaofeng,WU Xuyang,WANG Yixu,WANG Yingjian,ZHANG Jiancong.Treatment and Analysis of Abnormal Secondary Voltage Case for 220 kV Capacitor Voltage Transformer[J].Northeast Electric Power Technology,2020(1):49-51,56. |
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| Authors: | HUANG Xiaofeng WU Xuyang WANG Yixu WANG Yingjian ZHANG Jiancong |
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| Affiliation: | (State Grid Jinhua Power Supply Company,Jinhua,Zhejiang 321017,China) |
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| Abstract: | As one of the primary voltage monitoring equipment,the performance of the capacitor voltage transformer(CVT)directly affects the accurate acquisition of secondary voltage and the normal work of relay protection.Firstly,the typical structure of the CVT is introduced,and a case of the treatment process of abnormal secondary voltage for a 220 kV CVT is introduced in detail.Finally,the fault is found that it is caused by the short-circuit ablation of the CVT electromagnetic unit primary coil.The relevant suggestions are put forward to prevent the occurrence of such faults. |
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| Keywords: | capacitor voltage transformer(CVT) electromagnetic unit secondary voltage disassembling inspection |
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