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首页> 外文期刊>Elektrie >On-Line Condition Monitoring of High Voltage Equipment in Substations: Partial Discharges and Pollution Leakage Current
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On-Line Condition Monitoring of High Voltage Equipment in Substations: Partial Discharges and Pollution Leakage Current

机译：变电站高压设备的在线状态监测：局部放电和污染泄漏电流

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This paper reports laboratory development and field trials of two on-line condition-monitoring systems for high voltage power equipment. The first system is for on-line measurement of partial discharges and for the evaluation of their parameters. The principle used utilises capturing partial discharges by means of a current transducer (Rogowski coil), fibre-optic transmission link and fast computerised wide-band data acquisition system. The second condition monitoring system is for continuous on-line measurement and recording of the surface leakage current on polluted insulators of high voltage equipment. A signal proportional to the leakage current is fed into a sensor the output of which is transmitted via a fibre-optic link to the data acquisition system. This system enables continuous recording of the RMS value of the leakage current. Both partial discharges and pollution monitoring systems were tested for six months in a high voltage substation where the computerised data acquisition equipment was placed in the control room. These relatively low-cost systems proved to be reliable, robust and safe to use under the harsh environmental and electromagnetic conditions in HV substations.
机译：本文报道了用于高压电力设备的两个在线状态监测系统的实验室开发和现场试验。第一个系统用于在线测量局部放电并评估其参数。使用的原理是利用电流传感器（Rogowski线圈），光纤传输链路和快速计算机化的宽带数据采集系统来捕获局部放电。第二个状态监视系统用于连续在线测量并记录高压设备被污染的绝缘子上的表面泄漏电流。与泄漏电流成比例的信号被馈入传感器，传感器的输出通过光纤链路传输到数据采集系统。该系统可以连续记录泄漏电流的RMS值。在高压变电站对局部放电和污染监测系统进行了六个月的测试，在该变电站中，计算机数据采集设备被放置在控制室中。这些相对低成本的系统被证明在高压变电站的恶劣环境和电磁条件下使用可靠，坚固且安全。

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