摘要
广东电网拟在五邑—狮洋线路工程应用500kV同塔四回路,500kV同塔多回导线间耦合关系复杂,当一回运行,另一回停运线路上会有较高感应电压和感应电流。采用电磁暂态程序(EMTP)对广东500kV同塔四回线路在不同运行方式、相序排列方式下的感应电压和感应电流进行研究,并提出接地刀闸参数要求初步建议,为500kV同塔四回路工程设计、规划、运行提供参考。
The 500 kV four-circuit lines from WuYi to ShiYang on the same power to be built in Guangdong grid plan, there are higher inductive voltages and inductive currents on the non-energized lines while another line is energize, the coupling relationships among multi-circuit transmission lines is more complicated. This paper proposes suggestions of grounding knifeswitch parameter demand and provides some references for engineering design, planning and operation, via study of induced voltage and induced current on different operation mode and phase order arrange of Guangdong-500KV-parallel-four-circuit transmission lines using electromagnetic transient program （EMTP）.
出处
《南方电网技术》
2009年第B11期141-144,共4页
Southern Power System Technology
关键词
同塔四回
感应电压
感应电流
接地刀闸
parallel four-circuit lines
induced voltage
induced current
grounding knifeswitch
