With the increment of working voltage for the long-distance transmission line, the switching overvoltage in large power stations is threatening the insulation safety of large generators.
随着远距离输电线路电压等级的提高，大型电站中的操作过电压威胁着大型发电机的绝缘安全。
This paper has discussed how to select geoidal model and how to determine normal height in GPS survey of long distance transmission line project.
就长距离超高压送电线路工程的GPS测量中如何选择大地水准面模型，如何确定GPS测量的高程等问题进行了讨论。
The optical line protection system (OLP) is a long-distance optical transmission network production system, which has a very important practical value.
光线路保护系统是一种基于现代通信毫秒级光开关为基础的具有重要实践意义的长距离光传输网络保护系统。
应用推荐