直流高压电阻分压器泄漏电流测量研究

摘要

A device using to measure the leakage current of DC high voltage resistor divider is introduced.The device uses ZigBee wireless communication technology,which by way of an independent power supply to avoid the risk of high voltage electric field resulting in damage to the measuring instrument,and solve issues of difficult to measure the leakage current of the voltage divider in the high voltage state.It can overcome the effect of high voltage power supply ripple and drift by using synchronous sampling method,and the uncertainty of measurement is less than 9.8 × 10-6 V,k =2.%介绍了一种测量直流高压电阻分压器泄漏电流的装置.该装置采用ZigBee无线通信技术,通过独立电源供电的方式,避免了因高压电场导致测量仪器损坏的风险,解决了分压器在高电压工作状态下难以测量泄漏电流的问题.通过采用同步采样的方法,有效克服了高压电源纹波和漂移对测量精度的影响,泄漏电流测量不确定度优于9.8 ×10-6V,k=2.