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计算机和数据传输技术的发展使配电系统的许多新的自动化功能在技术上成为可能,在经济上成为可行。新的发展包括中压配电系统的遥控和自动化、电力负荷的监控,以及支持配电系统运行、规划和维护的计算机系统。这些新发展的效益在于提高供电可靠性、降低电力系统投资、节省发电费用和改善配电公司的效率。1 线路开关的遥控在芬兰约有95％的停电是由中压配电网的故障引起的。由于20kV的配电线路往往长达100～200km,停电时间的一大部分是由于故障的寻测和隔离。为了缓
The development of computer and data transmission technologies makes many of the new automation functions of power distribution systems technically possible and economically viable. New developments include the remote control and automation of medium voltage distribution systems, monitoring of electrical loads, and computer systems that support the operation, planning and maintenance of distribution systems. The benefits of these new developments lie in improving power supply reliability, reducing power system investment, saving power generation costs and improving distribution company efficiency. 1 Remote control of line switches About 95% of the blackouts in Finland are caused by faults in the medium-voltage distribution network. Since 20kV distribution lines tend to be as long as 100-200km, a large part of the power failure time is due to fault detection and isolation. To slow down