phase sequence relay 相序继电器 ; 反相序继电器
sequence relay 顺序电门 ; 顺序动作继电器 ; 对称分量继电器
negative phase sequence relay 负序继电器 ; 负相序继电器 ; 负相序保护 ; 消极阶段顺序中继
negative sequence relay 负序继电器
zero-phase sequence relay 零相序继电器
positive-sequence current relay 正序电流继电器
Zero-sequence current relay 零序电流继电器
Incomplete sequence relay 非全相序继电器 ; 不完全次序电驿 ; 操作顺序不全继电器
This system optimizes the test and replacement sequence of the aviation relay by using reasoning, and the costs are reduced by as much as 50%.
该系统利用推理对航空继电器检测和替换顺序进行了优化，节约费用约50％。
It mainly focuses on analysis and determining method of zero sequence power direction relay.
重点介绍零序功率方向继电器的分析及判定方法。
The zero sequence directional relay is an important relay component for transmission line.
零序功率方向继电器是线路保护中的一个重要元件。
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