ABB RELION 620 Series Technical Manual page 222

Section 4
Protection functions
216
Correction
angle
0
= -90 deg
RCA
0
GUID-560EFC3C-34BF-4852-BF8C-E3A2A7750275-ANSI V1 EN
Figure 96: Operating characteristic I
The operating sector is limited by angle correction, that is, the operating sector is 180
degrees - 2*(angle correction).
Example 2.
Iosin(φ) criterion selected, reverse-type fault
=> FAULT_DIR = 2
0
Min operating
current
sin(φ) in forward fault
0
1MAC504801-IB E
620 series ANSI
Technical Manual