Directional Operate Sef Characteristic; Directional Element; Relationship Polarising Signal - Toshiba GRE110 Instruction Manual

CA 180
-
Reverse
Operate
Zone
CA: Characteristic
angle
Figure 2.3.5 Directional Operate SEF Characteristic
Figure 2.3.6
−Ve
Figure 2.3.7

Relationship Polarising signal

 30 
Boundary of Operation
CA + 90
+87.5 ° (leading)
CA + 60
CA + 30
10 x Is
5 x Is
CA
Forward
Operate
CA - 30
Zone
CA - 60
CA - 90
Boundary of Operation
- 87.5 ° (lagging)
Directional (Forward)
Directional (Reverse)
Overcurrent (1-4 stage)
(Note) NOC provides stage 1 and 2 only.

Directional element

Ie
Ve
6 F 2 T 0 1 7 2
∗∗1-4
&
Forward
∗∗1-4
&
Reverse