电气技术  2015, Vol. 16 Issue (8): 76-79    DOI:
技术与应用 |
基于自激原理的非接触CVT介质损耗测量方法
邓旭东, 温元喜, 魏钢, 姚林
国网重庆市电力公司检修分公司,重庆 400039
The Non-contact Method based on Self-excited Principle to Measure Dielectric Loss of CVT
Deng Xudong, Wen Yuanxi, Wei Gang, Yao Lin
State Grid Chongqing Electric Power Co. Maintenance Branch Company, Chongqing 400039
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摘要 基于自激法原理提出了一种非接触式CVT介损测量方法,通过非接触式测量平台对电压电流波形同步采样,并由无线WIFI模块将所测得电参量传输至PC端,在LabVIEW软件平台上用谐波分析法进行电压电流信号的处理并计算得出介质损耗参数tanδ。试验证明,该方法可以有效测出CVT各部分电容器的介损值和电容值,同时能够可视化电压电流参量,用于长期监测CVT绝缘状态,在实际的介损测试中可以隔离高压,有较高的安全性和可靠性。
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邓旭东
温元喜
魏钢
姚林
关键词 电容式电压互感器(CVT)介质损耗自激法非接触    
Abstract:A non-contact method was presented to measure CVT dielectric loss. Synchronous sampling of voltage and current waveforms from CVT are made in non-contact measurement platform by self-excited method. Then the electrical parameters will be transmitted by the wireless WIFI to the PC side. The dielectric loss angle () can be obtained by analyzing those waves with Harmonic Analysis on LabVIEW software platform. The test shows that this method can effectively measure the various capacitor dielectric loss and capacitance values of CVT. Meanwhile, the electrical parameters can be visualized to monitor the long-term insulating state of CVT by this way. Some actual measurement of dielectric loss has verified the safety and reliability of the method.
Key wordscapacitor voltage transformer (CVT)    dielectric loss    self-excited method    non-contact   
收稿日期: 2015-08-18      出版日期: 2015-08-18
作者简介: 邓旭东(1977-),男,高级工程师,主要从事电力设备绝缘在线监测及故障诊断研究。
引用本文:   
邓旭东, 温元喜, 魏钢, 姚林. 基于自激原理的非接触CVT介质损耗测量方法[J]. 电气技术, 2015, 16(8): 76-79. Deng Xudong, Wen Yuanxi, Wei Gang, Yao Lin. The Non-contact Method based on Self-excited Principle to Measure Dielectric Loss of CVT. Electrical Engineering, 2015, 16(8): 76-79.
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https://dqjs.cesmedia.cn/CN/Y2015/V16/I8/76