| GIS设备异常噪声的分析与探讨 |
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| 引用本文： | 周 秀,王海龙,刘世涛.GIS设备异常噪声的分析与探讨[J].防灾减灾工程学报,2015(2):37-40. |
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| 作者姓名： | 周 秀 王海龙 刘世涛 |
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| 作者单位： | 国网宁夏电力公司电力科学研究院, 宁夏 银川 750011 |
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| 摘 要： | 针对宁夏电网两起气体绝缘金属封闭开关设备(Gas Insulated Switchgear,GIS)运行时出现异常噪声问题,通过多种带电测试手段(超声法、特高频法、SF6 气体成分法)对异常噪声的GIS 设备进行分析与对比。结果表明:由于 GIS 设备中钢体的磁滞伸缩,使得在工频周期的交变磁场改变原有已导磁的 GIS 磁化状态,引起了异常的噪声,带电测试表明此噪声不会给 GIS 设备的运行带来危害。
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| 关 键 词： | GIS 带电测试 异常噪声 |
Analysis and discussion on abnormal noise of GIS equipment |
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| ZHOU Xiu,WANG Hailong,LIU Shitao.Analysis and discussion on abnormal noise of GIS equipment[J].Journal of Disaster Prevent and Mitigation Eng,2015(2):37-40. |
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| Authors: | ZHOU Xiu WANG Hailong LIU Shitao |
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| Institution: | Power Research Institute of State Grid Ningxia Power Co ,Yinchuan Ningxia 750011 ,China |
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| Abstract: | Aiming at two cases of abnormal noises signal appearing in the operation of GIS(GasInsulated Switchgear)equipment,by various electric on-line test ways such as ultrasonic method, ultrahigh frequency method,and SF6 gas component analysis method,analyzes and compares GISequipment appearing abnormal noise. The analysis result shows that due to the magnetic hysteresisof steel body in GIS equipment,the alternating magnetic field in a power frequency cycle changemagnetic state of GIS which has the permeability,caused the abnormal noise. The electric on-linetest shows that the noise will not bring harm to the operation of the GIS equipment. |
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