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发明公开
CN105319487A 变电站局部放电信号检测和定位系统及方法 无效 - 撤回

变电站局部放电信号检测和定位系统及方法
摘要：
本发明公开了一种变电站局部放电信号检测和定位系统，用于检测变电站设备放电点产生的局部放电所激发的特高频电磁波，并对所述放电点进行定位，其包括：四个特高频全向天线接收放大模块，其接收所述局部放电激发的特高频电磁波并进行放大和滤波后输出四路信号；超高速数据采集单元，采集所述输出的四路信号并转换为相应的四路数据输出；数据处理和分析单元，其对该四路数据进行处理和分析，基于所述局部放电激发的特高频电磁波到达所述四个特高频全向天线接收放大模块的四个起始时刻计算得到所述放电点坐标的值，以对所述放电点进行定位。本发明还公开了一种变电站局部放电信号检测和定位方法。
摘要（英）：

The invention discloses a transformer station partial discharge signal detection and positioning system, used for detecting the ultrahigh frequency electromagnetic wave excited by partial discharge of transformer station equipment discharge points, and positioning the discharge points. The system comprises four ultrahigh frequency omnidirectional antenna receiving and amplifying modules used for receiving, amplifying and filtering the ultrahigh frequency electromagnetic wave excited by partial discharge, and then outputting four paths of signals; a superspeed data acquisition unit for collecting the outputted four paths of signals, and converting the four paths of signals into corresponding four paths of data for output; and a data processing and analysis unit used for processing and analyzing the four paths of data, and calculating discharge point coordinate vales based on four beginning times at which the ultrahigh frequency electromagnetic wave excited by partial discharge arrives at the four ultrahigh frequency omnidirectional antenna receiving and amplifying modules, so as to position the discharge points. The invention also discloses a transformer station partial discharge signal detection and positioning method.

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