电力系统微机保护装置调试应注意的问题

微机保护是新一代的高压电力线路保护技术,以两种典型的微机保护装置的功能调试实践为例,结合单相接地故障电流分布图和单相接地零序网络图,分析了低周减载和零序保护功能参数设置的要点,提出了在实际调试中应该注意的问题,指出应根据实际情况灵活配置,尽可能地发挥微机保护装置的保护功效。

Noticeable Problems About Microcomputer Protection Device Debugging in Power System

Microcomputer protection is a new generation of high-voltage power line protection technology. Taking function debugging practices of two kinds of typical microcomputer protection devices for example, important points of function parameters setting for lowcycle load reduction and zero-sequence protection were analyzed, combining single-phase grounding fault current distribution diagram with single-phase zero-sequence net diagram. The noticeable problems in actual debugging was raised, pointing that flexible disposition should be made according to actual situation, to bring full play of protection effects of microcomputer protection devices.