电力电缆在线诊断技术研究现状

Review of Online Diagnosis Techniques of Power Cables

叙述了电力电缆在线诊断技术的研究现状,根据充油电缆或交联聚乙烯电缆、电缆主绝缘、电缆接头及电压等级等不同,电力电缆绝缘老化的诊断技术可分为多种,其中,在线诊断技术不需电缆线路停运即可对电缆进行老化诊断,能真实反映电缆在运行电压下的工况。提出了电力电缆在线诊断技术未来的研究方向。

Power cables are getting more and more important in power systems. Based on the kinds of cables （OF cable or XLPE cable）, diagnosis targets （main insulation or joint） and voltage levels, different kinds of diagnosis methods have been developed, among which online diagnosis methods have received a lot of attentions. However, the knowledge of these methods is very limited, and much effort should be put on the development of online diagnosis techniques of power cables. In this paper, some developed online diagnosis methods that have been employed were presented, and the development trend of online diagnosis technique were pointed out.