ABB RELION 620 Series Technical Manual page 224

Section 4
Protection functions
218
0
Min operating
current
GUID-11E40C1F-6245-4532-9199-2E2F1D9B45E4-ANSI V1 EN
Figure 98: Operating characteristic I
Example 4.
Iocos(φ) criterion selected, reverse-type fault
=> FAULT_DIR = 2
Min operating
current
0
GUID-54ACB854-F11D-4AF2-8BDB-69E5F6C13EF1-ANSI V1 EN
Figure 99: Operating characteristic I
= 0 deg
RCA
0
0
Correction
angle
cos(φ) in forward fault
0
= 0 deg
RCA
0
Correction
angle
0
cos(φ) in reverse fault
0
1MAC504801-IB E
620 series ANSI
Technical Manual