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发明公开
CN103197272A 一种测试局部放电暂态地电压检测仪性能的系统和方法 有权

一种测试局部放电暂态地电压检测仪性能的系统和方法
摘要：
本发明提供一种测试局部放电暂态地电压检测仪性能的系统和方法，系统包括信号发生器、同轴电缆2、金属板、匹配电阻4、TEV传感器5、暂态地电压检测仪6和信号电缆7；信号发生器为正弦信号发生器1或脉冲信号发生器8，信号发生器与金属板通过同轴电缆2相连接，暂态地电压检测仪6与TEV(Transient earth voltage，暂态对地电压)传感器5通过信号电缆7相连接，TEV传感器5紧贴于金属板的表面上，金属板通过匹配电阻4接地，信号发生器与暂态地电压检测仪6的接地端直接与地相连；通过调节信号发生器发出的信号的类型、幅值或大小，测试暂态地电压检测仪6的线性度误差、脉冲计数测量误差、稳定性误差和定位功能。测试方法容易实现、调试简单快速、测试过程数字化。
摘要（英）：

The invention provides a system and a method of measuring performance of a partial discharge transient state ground voltage detector. The system comprises a signal generator, a coaxial cable 2, a metal board, a matched resistor 4, a TEV (Transient earth voltage, transient state ground voltage) sensor 5, the transient state ground voltage detector 6 and a signal cable 7, wherein the signal generator is a sinusoidal signal generator 1 or a pulse signal generator 8, and the signal generator is connected with the metal board through the coaxial cable 2. The transient state ground voltage detector 6 is connected with the TEV sensor 5 through the signal cable 7, the TEV sensor 5 is tightly attached to the surface of the metal board which is grounded through the matched resistor 4, and the signal generator and the grounded end of the transient state ground voltage detector 6 are directed grounded. According to the fact that types or amplitudes or sizes of signals generated by the signal generator are regulated, linearity errors, pulse counting testing errors, stability errors and location functions of the transient state ground voltage detector 6 are tested. The test method is easy to achieve and simple and rapid to debug, and achieves process digitization.

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