②检漏继电器采用零序电抗器并不影响选择性漏电保护的实现，而对其可靠工作作用明显；
A feeding switch with a leakage protection function to replace a leakage check relay should not be adopted for practices.
重点介绍零序功率方向继电器的分析及判定方法。
It mainly focuses on analysis and determining method of zero sequence power direction relay.
提出了适用于平行双回线路的零序距离继电器新判据。
A double lines distance relay based on the zero sequence components is presented.
零序功率方向继电器是线路保护中的一个重要元件。
The zero sequence directional relay is an important relay component for transmission line.
配合SD - LJD (LXK)系类零序电流互感器和动作继电器即组成完整的零序(接地)保护系统。
Used together with SD-LJD (LXK) series ZCT and executing relay to form a complete zero sequence (ground) protection system.
文中用六序分量法分析了同杆双回线上零序功率方向继电器的性能。
Based on the method of six sequence fault component, this paper analyses the performance of zero sequence directional relay on double circuit line on the same pole (DLSP).
提出一种用零序分量做动作量，负序分量做制动量的综合序分量接地距离继电器。
An earth fault distance relay based on the combined sequence components is presented.
提出了采用测量线路零序导纳进行接地保护的新原理，讨论了直线式导纳继电器的接地保护判据。
New principle for feeder grounding fault protection based on zero sequence admittance is presented in this paper. Criterions for the line ground relay with zero sequence admittance are also discussed.
提出了采用测量线路零序导纳进行接地保护的新原理，讨论了直线式导纳继电器的接地保护判据。
New principle for feeder grounding fault protection based on zero sequence admittance is presented in this paper. Criterions for the line ground relay with zero sequence admittance are also discussed.
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