超高压线路微机保护的选相问题

Phase selection of microcomputer-based protection in extra high voltage line

随着电网结构的不断复杂,超高压线路微机保护选错相的问题时有发生。该文讨论了国内现在微机保护常用的几种选相原理的不足,并提出解决选相问题的几点建议。

Maloperations are made sometimes in phase selection of microcomputer-based line protection in complex networks.The paper focuses on the shortcomings of some generally employed selection methods at home. And some proposals are put forward for phase selection.