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| 特高压交流试验示范工程GIS隔离开关带电操作试验 | |
| 引用本文： | 李志兵,陈维江,王浩,孙岗,张翠霞,刘洪涛,马国明,岳功昌,胡榕,时卫东,孙泽来,张建功.特高压交流试验示范工程GIS隔离开关带电操作试验[J].高电压技术,2012,38(6):1436-1444. |
| 作者姓名： | 李志兵 陈维江 王浩 孙岗 张翠霞 刘洪涛 马国明 岳功昌 胡榕 时卫东 孙泽来 张建功 |
| 作者单位： | 1. 中国电力科学研究院,北京,100192 2. 国家电网公司,北京,100031 3. 华北电力大学高电压与电磁兼容北京市重点实验室,北京,102206 4. 清华大学电机工程与应用电子技术系,北京,100084 5. 中国电力科学研究院,武汉,430074 |
| 基金项目： | 国家重点基础研究发展计划(973计划)，国家电网公司科技项目，国家电网公司科技项目(2011)~~ |
| 摘 要： | 为验证我国特高压交流试验示范工程金属封闭开关设备(gas insulated switchgear,GIS)中隔离开关带电操作的安全性,在长治、南阳和荆门变电站对所有特高压GIS隔离开关进行了带电操作试验。在前期特高压GIS和复合型气体绝缘金属封闭开关设备(hypid gas insulated switchgear,HGIS)中特快速瞬态过电压(very fast transi-ent overvoltage,VFTO)实测研究基础上,开展现场典型运行方式下隔离开关带电操作,监测产生的VFTO和暂态壳体电位(transient enclosure voltage,TEV)。试验初步得出了特高压变电站实际VFTO和TEV水平及分布,结果表明:特高压GIS隔离开关的带电操作是安全的,但应注意产生的TEV对二次设备的影响,阻尼电阻能够有效抑制VFTO和TEV。带电操作试验的开展为今后特高压GIS隔离开关的带电操作提供了依据。 |
| 关 键 词： | 特高压(UHV) 气体绝缘金属封闭开关设备(GIS) 复合型气体绝缘金属封闭开关设备(HGIS) 隔离开关 带电操作 特快速暂态过电压(VFTO) 暂态壳体电位(TEV) |
Switching Tests of Energized GIS Disconnectors in UHV AC Pilot Demonstration Project |
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| Affiliation: | LI Zhibing1,CHEN Weijiang2,WANG Hao1,SUN Gang2,ZHANG Cuixia1,LIU Hongtao2, MA Guoming3,YUE Gongchang4,HU Rong3,SHI Weidong1,SUN Zelai3,ZHANG Jianggong5(1.China Electric Power Research Institute,Beijing 100192,China; 2.State Grid Corporation of China,Beijing 100031,China; 3.Beijing Key Laboratory of High Voltage & EMC,North China Electric Power University, Beijing 102206,China;4.Department of Electrical Engineering,Tsinghua University, Beijing 100084,China;5.China Electric Power Research Institute,Wuhan 430074,China) |
| Abstract: | In order to verify the safety of switching of gas insulated switchgear(GIS) disconnectors energized in ultra high voltage(UHV) AC Pilot Demonstration Project,we experimentally investigated switching of all GIS disconnectors energized in Changzhi,Nanyang,and Jingmen substations,and monitored very fast transient overvoltage(VFTO) and transient enclosure voltage(TEV) generated.The tests results show that switching of UHV GIS disconnectors energized is safe,the effect of TEV on secondary equipment should be paid attention to,and damping resistor in disconnector can mitigate VFTO and TEV significantly,The tests provide technical support for the future switching of GIS disconnector energized in UHV substations. |
| Keywords: | ultra high voltage (UHV) gas insulated switchgear (GIS) hypid gas insulated switchgear (HGIS) disconnector hot-line work very fast transient overvoltage (VFTO) transient enclosure voltage (TEV) |
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