ABB RER620 - Page 162

Section 4 1MAC309294-MB F
Protection functions
156 RER620
Technical Manual
=> FAULT_DIR = 2
Figure 67: Operating characteristic I
0
sin(φ) in reverse fault
Example 3.
I
0
cos(φ) criterion selected, forward-type fault
=> FAULT_DIR = 1
RCA
= -90 deg
Correction
angle
Min operating
current
0
0
0