CAJ | 학술논문

为了进一步提高特高压线路输电容量，建设节能环保型输电工程，在特高压试验示范工程建成投运后，需着手开展特高压紧凑型输电技术研究工作。为系统掌握1000kV特高压紧凑型线路空气间隙外绝缘放电特性，为后续工程绝缘设计提供技术支撑，采用全尺寸特高压紧凑型塔窗，对不同相V型串空气间隙进行了标准操作冲击、1000μs长波前操作冲击、雷电冲击放电特性试验研究，获得了多条重要的放电特性参数。根据试验结果及过电压仿真结论，分析了1000kV特高压紧凑型线路的绝缘配合问题，提出了我国单回特高压紧凑型线路最小安全间隙推荐值，在海拔500m、1000m条件下，安全间隙（对横梁／对斜边）取7．3m／6．9m和7．5m／7．1m。
위료진일보제고특고압선로수전용량，건설절능배보형수전공정，재특고압시험시범공정건성투운후，수착수개전특고압긴주형수전기술연구공작。위계통장악1000kV특고압긴주형선로공기간극외절연방전특성，위후속공정절연설계제공기술지탱，채용전척촌특고압긴주형탑창，대불동상V형천공기간극진행료표준조작충격、1000μs장파전조작충격、뇌전충격방전특성시험연구，획득료다조중요적방전특성삼수。근거시험결과급과전압방진결론，분석료1000kV특고압긴주형선로적절연배합문제，제출료아국단회특고압긴주형선로최소안전간극추천치，재해발500m、1000m조건하，안전간극（대횡량／대사변）취7．3m／6．9m화7．5m／7．1m。
In order to get the air-gap characteristics parameters of tower for 1000 kV AC compact transmission line, and to supply a base of project design in the future, we experimentally studied the flashover characteristics of ＇V＇ string air-gaps at the standard switching impulse voltage, long wave-front（ 1000 μs） switching impulse voltage, and standard lightning impulse voltage, by adopting full scale tower window. By the test, we got several important air- gap flashover characteristics curves. According to the test results and the overvohage simulation conclusion, we an- alyzed the insulation co-ordination problem and suggested the minimum safe insulation air-gaps. Under the premise of enough external insulation safety in operation, the conclusion can be used to optimize the tower design and reduce the project cost.