氧化锌避雷器测试仪阻容网络校准方法  

Calibration method of metal oxide arrester tester based on resistance-apacitance network

作　　者：冯建[1] 史小涛[1] 许峰[1] 

机构地区：[1]上海市计量测试技术研究院

出　　处：《上海计量测试》2012年第4期20-22,29,共4页Shanghai Measurement and Testing

摘　　要：对氧化锌避雷器测试仪的传统阻容网络校准方法进行分析,指出电阻的时间常数、电容的损耗因数对泄漏电流的校准有一定影响。提出了基于相位差测量的数字化校准方法,采用数字采样方法对关键参数相位差进行测量,通过实验验证,证实了该方法具有较高的准确度,可用于氧化锌避雷器测试仪的校准。The traditional calibration method of Metal oxide arrester tester based on resistance-capacitance network is analyzed. Both the time constant of resistor and the loss factor of capacitance affect the calibration result of the leakage current. A new digital calibration method based on phase angle measurement is proposed in this paper. As the key parameter, phase angle is measured by the way of digital sampling. Its accuracy has been verified by experiment and can be used for the calibration of Metal oxide arrester tester.

关 键 词：氧化锌避雷器测试仪 阻容网络 相位 

分 类 号：TM862[电气工程—高电压与绝缘技术]