ABB RER620 - Page 163

1MAC309294-MB F Section 4
Protection functions
RER620 157
Technical Manual
Figure 68: Operating characteristic I
0
cos(φ) in forward fault
Example 4.
I
0
cos(φ) criterion selected, reverse-type fault
=> FAULT_DIR = 2
RCA
= 0 deg
Correction
angle
Min operating
current
0
0
0