摘要
用基于电磁耦合法的VHF宽频带钳型电流传感器配合基于阿基米德螺旋天线的UHF传感器的方法研究了在线检测带有交叉互联线的XLPE电缆绝缘接头局部放电。该法对电缆绝缘接头处VHF和UHF信号的时域和频域分析可有效地识别被测电缆绝缘接头部内、外部的局放信号。VHF和UHF检测技术相互配合联合降噪可有效抑制宽带脉冲干扰,实验室和现场试验证明该法效果较好。
In this paper, a method of PD on-line detection of XLPE cable insulating joints is developed, using two VHF clamp current transducers and an UHF sensor. This method analyzes VHF and UHF signal of detected cable joint, using time and lating joint. Using V Tests prove that this frequency analysis. This method can be used for detecting PD pulse inside or outside the insulating joint.Using VHF and UHF techniques, this method can easily discriminate PD from noise. Lab and on-site method has a good effect of detection.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2005年第10期30-32,共3页
High Voltage Engineering
