摘要
针对交流耐压试验方法在发现电缆缺陷上的不足,提出在高压电缆交流耐压试验中外接局放监视仪来避免耐压试验对电缆造成损伤。通过建立仿真电路和搭建实验室模型,研究了现场干扰信号与电缆自身局放信号的时域、频域、波形和极性的特征,总结出一套适用于高压电缆现场局放测试的方法。应用该方法对新敷设的110 kV高压电缆进行检测,发现了高压电缆终端的缺陷,证实了此测试方法的有效性。
In view of the shortcomings of AC withstand voltage test method in discovering the taults ot HV cable, a partial discharge monitoring instrument is external connected with AC withstand voltage test to avoid the damage of cable. The time domain, frequency domain, waveform and polarity characteristics of the interference signal and the signal of cable were studied by simulation and experimental research, and a method suitable for the partial discharge test of of a new HV cable was found by applying the method,
出处
《绝缘材料》
CAS
北大核心
2013年第3期76-79,共4页
Insulating Materials
关键词
电缆
仿真
局部放电
缺陷
cable
simulation
partial discharge
fault HV cable was summarized. The termination fault which confirms the validity of the method.
