directional relay造句

1、induction type power directional relay

2、voltage drop compensation directional relay

3、induction disc type directional relay

4、The zero sequence directional relay is an important relay component for transmission line.

5、Analysis shows that the voltage operating dead zone is small and have more sensitivity than traditional power directional relay.

6、The positive-sequence fault components based directional relay is a new type of unit for recognizing fault direction.

7、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).

8、The scheme includes the transverse differential protection, the directional relay action on negative sequence power of fault component and the incomplete differential protection.