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发明公开
CN104655995A 一种电力电缆局放源双端定位方法 无效 - 驳回

一种电力电缆局放源双端定位方法
摘要：
本发明公开了一种电力电缆局放源双端定位方法，当电力电缆较长时，测量单元设置在电力电缆的近端，触发反射单元设置在电力电缆的远端，局放源发出的局放信号，首先达到近端的测量单元，同时触发反射单元通过高频电缆互感器接收到局放脉冲时，将脉冲信号发送到信号发射模块进行放大，并通过另外一个高频电缆互感器发送到电缆，并传输到测量端，通过测量局放脉冲、放大后的局放脉冲的达到时间差，定位局放源的位置，通过增强反射的局放脉冲，大幅度增加定位精度，具有良好的应用前景。
摘要（英）：

The invention discloses a dual-end positioning method for a partial discharge source of a power cable. When the power cable is longer, a measurement unit is arranged at the near end of the power cable, and a triggering reflection unit is arranged at the far end of the power cable; a partial discharge signal sent by the partial discharge source firstly reaches the measurement unit at the near end, and when the triggering reflection unit receives a partial discharge pulse through a high-frequency cable transformer, the pulse signal is sent to a signal emission module for amplification, then is sent to the cable through another high-frequency cable transformer and is transmitted to the measurement end; by measurement of the difference of the arrival of time of the partial discharge pulse and the amplified partial discharge pulse, the partial discharge source is positioned; by enhancement of the reflected partial discharge pulse, the positioning precision is greatly improved, and the dual-end positioning method has a good application prospect.

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