基于110kV及以下电压等级电缆的故障诊断理论与关键技术探讨

Discussion on Fault Diagnosis Theory and Key Technologies for Cables with Voltage Levels of 110kV and Below

针对常规耐压试验易对电缆造成损伤的弊端,提出了基于频域阻抗谐振模型的多点绝缘缺陷识别及精确定位的方法,以有效诊断110kV及以下电压等级电缆存在的故障,可为其它供电局检测和诊断110kV及以下电压等级电缆的故障提供借鉴。

In this paper,for the disadvantage that the conventional withstand voltage test is easy to damage the cables,a method of multi-point insulation defect identification and precise location based on the frequency domain impedance resonance model is proposed to effectively diagnose the faults of cables with voltage levels of 110kV and below,which provides an reference for other power supply bureaus to detect and diagnose the faults of cables with voltage levels of 110kV and below.