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CN108957267A 一种电缆局部放电双端检测装置及方法 无效 - 驳回

一种电缆局部放电双端检测装置及方法
摘要：
本发明提供一种电缆局部放电双端检测装置，包括高压电源、第一局部放电检测单元、第二局部放电检测单元、标准脉冲发生单元和主机单元，高压电源与电缆首端连接，标准脉冲发生单元与电缆首端连接以向电缆注入高幅值的标准脉冲，第一、第二局部放电检测单元分别与电缆首端和末端连接，以分别获取第一组波形和第二组波形，第一、第二组波形均包括标准脉冲的入射波和反射波，主机单元分别与第一、第二局部放电检测单元通信连接以根据第一、第二组波形确定电缆局部放电位置。本发明还提供一种电缆局部放电双端检测方法。本发明对于各种长度的电缆，均能准确检测出局部放电位置，适应性强。
摘要（英）：

The invention provides a cable partial discharge dual-terminal detection device, which includes a high-voltage power supply, a first partial discharge detection unit, a second partial discharge detection unit, a standard pulse generation unit and a host unit. The high-voltage power supply is connected with the head end of a cable. The standard pulse generation unit is connected with the head end of the cable to inject a high-amplitude standard pulse into the cable. The first and second partial discharge detection units are respectively connected with the head and tail ends of the cable to acquire a first group of waveforms and a second group of waveforms. The first and second groups of waveforms include the incident and reflected waves of the standard pulse. The host unit is in communication connection with the first and second partial discharge detection units to determine the partial discharge position of the cable according to the first and second groups of waveforms. The inventionfurther provides a cable partial discharge dual-terminal detection method. By using the device and the method, the position of partial discharge can be accurately detected for cables of various lengths. The device and the method are highly adaptable.

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