| 通过二次电压测试发现CVT故障一例 |
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| 引用本文： | 付伟平,卢锋超,霍春燕. 通过二次电压测试发现CVT故障一例[J]. 电力电容器与无功补偿, 2012, 33(2): 54-57 |
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| 作者姓名： | 付伟平 卢锋超 霍春燕 |
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| 作者单位： | 河北省电力公司超高压输变电分公司,河北石家庄,050070 |
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| 摘 要： | 对一起500 kV电容式电压互感器(CVT)运行中二次电压值异常的故障做了简要分析。介绍了CVT故障发现和分析的全过程。通过二次电压的变化及停电试验结果对缺陷进行了分析,经过对故障CVT解体验证了分析的正确性。同时,对运行CVT的状态监测提出了具体措施。
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| 关 键 词： | 电容式电压互感器(CVT) 击穿 电压异常 故障 |
An Early Fault of CVT Detected by Measuring its Secondary Voltage |
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| FU Wei-ping , LU Feng-chao , HUO Chun-yan. An Early Fault of CVT Detected by Measuring its Secondary Voltage[J]. Power Capacitor $ Reactive Power Compensation, 2012, 33(2): 54-57 |
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| Authors: | FU Wei-ping LU Feng-chao HUO Chun-yan |
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| Affiliation: | (EHV Transmission & Transformation Branch of Hebei Province Electric Power Company,Shijiazhuang 050070,China) |
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| Abstract: | This paper provides a brief analysis of a fault of secondary voltage abnormality in a 500 kV capacitor voltage transformer,introduces the whole process of CVT fault detection and its analysis.Based on secondary voltage abnormality and test results afterward,the defect has been analyzed;after CVT disassembled,the analysis correctness had been verified.At the same time,specific measures for monitoring CVT operating status have been proposed. |
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| Keywords: | capacitor voltage transformer(CVT) breakdown voltage abnormality fault |
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