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首页> 外文期刊>Transactions on Electrical and Electronic Materials >Partial Discharge Detection of High Voltage Switchgear Using a Ultra High Frequency Sensor
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Partial Discharge Detection of High Voltage Switchgear Using a Ultra High Frequency Sensor

机译：使用超高频传感器的高压开关柜局部放电检测

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Partial discharge diagnosis techniques using ultra high frequencies do not affect load movement, because there is no interruption of power. Consequently, these techniques are popular among the prevention diagnosis methods. For the first time, this measurement technique has been applied to the GIS, and has been tested by applying an extra high voltage switchboard. This particular technique makes it easy to measure in the live state, and is not affected by the noise generated by analyzing the causes of faults ? thereby making risk analysis possible. It is reported that the analysis data and the evaluation of the risk level are improved, especially for poor location, and that the measurement of Ultra high frequency (UHF) partial discharge of the real live wire in industrial switchgear is spectacular. Partial discharge diagnosis techniques by using the Ultra High Frequency sensor have been recently highlighted, and it is verified by applying them to the GIS. This has become one of the new and various power equipment techniques. Diagnosis using a UHF sensor is easy to measure, and waveform analysis is already standardized, due to numerous past case experiments. This technique is currently active in research and development, and commercialization is becoming a reality. Another aspect of this technique is that it can determine the occurrences and types of partial discharge, by the application diagnosis for live wire of ultra high voltage switchgear. Measured data by using the UHF partial discharge techniques for ultra high voltage switchgear was obtained from 200 places in Gumi, Yeosu, Taiwan and China's semiconductor plants, and also the partial discharge signals at 15 other places were found. It was confirmed that the partial discharge signal was destroyed by improving the work of junction bolt tightening check, and the cable head reinforcement insulation at 8 places with a possibility for preventing the interruption of service. Also, it was confirmed that the UHF partial discharge measurement techniques are also a prevention diagnosis method in actual industrial sites. The measured field data and the usage of the research for risk assessment techniques of the live wire status of power equipment make a valuable database for future improvements.
机译：使用超高频的局部放电诊断技术不会影响负载运动，因为不会中断电源。因此，这些技术在预防诊断方法中很流行。首次将这种测量技术应用于GIS，并已通过应用超高压配电盘进行了测试。这种特殊的技术使得在带电状态下易于测量，并且不受分析故障原因所产生的噪声的影响。从而使风险分析成为可能。据报道，分析数据和风险等级的评估得到了改善，特别是对于位置较差的地方，并且工业开关设备中实火线的超高频（UHF）局部放电的测量非常出色。最近已经重点介绍了使用超高频传感器的局部放电诊断技术，并将其应用于GIS进行了验证。这已成为新的各种电力设备技术之一。使用UHF传感器进行诊断很容易测量，并且由于过去的大量实验，波形分析已经标准化。目前，该技术活跃于研发中，并且商业化已成为现实。该技术的另一个方面是，它可以通过对超高压开关设备的火线的应用诊断来确定局部放电的发生和类型。利用超高频部分放电设备的UHF局部放电技术，从龟尾，丽水，台湾和中国的半导体工厂的200个地方获得了测量数据，还发现了其他15个地方的局部放电信号。可以确认，通过改善连接螺栓的拧紧检查工作，局部放电信号被破坏，并且电缆头的加强绝缘在8个位置处，有可能防止服务中断。此外，已经证实，UHF局部放电测量技术也是实际工业场所中的预防诊断方法。实测数据和电力设备带电状态风险评估技术的研究成果为将来的改进提供了宝贵的数据库。

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