| 在线特高频技术在1000kV HGIS局放监测中的应用 |
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| 引用本文： | 周广,刘 勇,金正洪,刘天作,董 明,唐开平.在线特高频技术在1000kV HGIS局放监测中的应用[J].华中电力,2011(5):57-62. |
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| 作者姓名： | 周广 刘 勇 金正洪 刘天作 董 明 唐开平 |
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| 作者单位： | 国网运行公司宜昌超高压管理处,西安输变电运行公司,西安输变电运行公司,国网运行有限公司宜昌超高压管理处,电力设备电气绝缘国家重点实验室，西安交通大学,国网运行有限公司宜昌超高压管理处 |
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| 摘 要： | 1000kV交流特高压HGIS设备对气室内部局放要求较高,特高频局放在线监测可以实时对内部局放情况进行监控,其中通过监测图谱分析故障类型及危急程度是现场工作的焦点.提出了通过三种不同图谱综合对局放情况进行分析的方法.结论是:在局放单周期频谱中局放的分布、相位、幅值决定了局放类型、波点数据(POW)图中放电幅值越高、放电...
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| 关 键 词： | 特高压交流 HGIS 特高频 局部放电 波点数据图 在线监测 |
Application of On-line UHF Partial Discharge Detection in 1000kV HGIS |
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| ZHOU Guang,LIU Yong,JIN Zheng-hong,LIU Tian-zuo,DONG Ming and TANG Kai-ping.Application of On-line UHF Partial Discharge Detection in 1000kV HGIS[J].Central China Electric Power,2011(5):57-62. |
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| Authors: | ZHOU Guang LIU Yong JIN Zheng-hong LIU Tian-zuo DONG Ming and TANG Kai-ping |
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| Affiliation: | ZHOU Guang1,LIU Yong2,JIN Zheng-hong2,LIU Tian-zuo1,Dong Ming3.4,TANG Kai-ping1(1.State Grid Yichang Extra High Voltage Administrative Company,Yichang 443000,China,2.Xi'an Power Transmission and Transformation Operation Company,Xi'an 710075,3.State Key Laboratory of Electrical Insulation for Power Equipment,Xi'an Jiaotong University,Xi'an 710049,4.Postdoctoral Workstation of Northwest Power Grid Co.Ltd.,China) |
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| Abstract: | PD(partial discharge) of UHV substation HGIS is more serious than in EHV substation, on-line UHF partial discharge monitor which can detect inside partial discharge is used to analyze fault type and emergency degree by monitoring mappings. The point is judgment and decision from the mappings. Comprehensive analysis of three types of mappings can be more accurately to determine the type and critical level. The conclusion is that by distribution, phase, amplitude of PD single-cycle wave determines the type of PD; discharge magnitude and discharge times in point data of wave(POW) determines the severity of PD; judgement on developing trends of PD can be made based on one-day historical data. |
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| Keywords: | UHV AC hybrid gas insulated switchgear ultra-high frequency(UHF) partial discharge(PD) point on wave(POW) on-line monitoring |
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