中文摘要：

针对市场上的过电压在线监测装置采样速率低、只能监测内部过电压，无法监测雷电过电压的缺点，本文采用基于PCI接口的高速数据采集系统并使用低阻尼阻容串联分压器作为高压传感器，实现了两段分裂母线六路过电压信号同时采集，达到了同时监测配电网内部过电压和大气过电压的效果。

英文摘要：

At present, the most existent devices on the market can only record the interior overvoltage because of the low sampling speed, furthermore, the lightning overvohage can not be recorded. In this paper, based on the PCI interface and high-speed data collection system with low damping series RC divider as a high voltage sensor, six over voltage signal at two split bus can be collected at the same time. Besides, the internal over voltage of the distribution network and the over voltage of the atmospheric can be on-line monitored simultaneously.