高压交联电缆在线局放检测设备的性能探讨

摘要

In this paper, a kind of PD measuring system for high voltage cables and its application in Beijing is introduced. PDCheck system realized the separation and identification of discharge pulse. Whole pulses was taken in using a high-speed broad band sampling system at first, then discharge pulses were separated from noises by character which was calculated from pulses, and discharge types were ascertained at last. Tests in lab and fieldwork show that this system＇s performance can effectively and accurately detect insulation flaws in the electric devices.%文章介绍了一种高压XLPE电缆在线局放检测设备PDCheck系统,该设备通过对信号进行高速宽带采样获取完整的时域波形,针对不同放电及噪声间的差异提取多种信号特征,对每一类放电进行判断,推断出电缆设备可能存在的绝缘问题,经现场测试和实验室校验,性能符合要求,使用效果良好。