CAJ | 학술논문

1000 kV晋东南(长治)-南阳-荆门特高压交流试验示范工程是我国第1个1000 kV电压等级输变电工程,测试并掌握该工程的架空地线感应电压水平对特高压交流线路的设计和安全运行具有重要意义.为给我国后续特高压交流线路提供基础参数,1000 kV晋东南(长治)-南阳-荆门特高压交流试验示范工程的系统调试期间,在不同输送功率和单相瞬时人工接地故障工况下,对架空地线进行感应电压测试.通过测试,得到1000 kV晋东南(长治)-南阳-荆门特高压交流输电线路的架空地线稳态感应电压水平和暂态感应电压水平.计算结果与测试结果基本符合.对测试结果和架空地线运行方式进行了分析.分段绝缘一点接地的运行方式可大大降低线路损耗.
1000 kV진동남(장치)-남양-형문특고압교류시험시범공정시아국제1개1000 kV전압등급수변전공정,측시병장악해공정적가공지선감응전압수평대특고압교류선로적설계화안전운행구유중요의의.위급아국후속특고압교류선로제공기출삼수,1000 kV진동남(장치)-남양-형문특고압교류시험시범공정적계통조시기간,재불동수송공솔화단상순시인공접지고장공황하,대가공지선진행감응전압측시.통과측시,득도1000 kV진동남(장치)-남양-형문특고압교류수전선로적가공지선은태감응전압수평화잠태감응전압수평.계산결과여측시결과기본부합.대측시결과화가공지선운행방식진행료분석.분단절연일점접지적운행방식가대대강저선로손모.
1000 kV transmission pilot project from Jindongnan(Changzhi)to Jingmen is the first 1000 kV transmission project in China.It is important for designing and operating UHV power line properly to test and know the in ductive voltage level of the project.The inductive voltage on overhead ground wire was tested,during the period of system test on 1000 kV transmission pilot project from Jindongnan(Changzhi)to Jingmen at different power and in the artificial single grounding fault,respectively.Constant and transient inductive voltage level was obtained by the measurement on overhead ground wire of 1000 kV UHV AC transmission line from Jindongnan(Changzhi)to Jingmen.The calculated results coincide with the measured ones.The test results and different operation conditions are analyzed for overhead ground wire.The energy loss for UHV AC line may be lowered as the overhead ground line is operated with the segmented insulation and one-point earthing.