Settings For Each Step - ABB RELION RET670 Applications Manual

Section 9
Current protection
9.2.3.1
522
ANSI09000636 V1 EN-US
Figure 260: Directional function characteristic
1. RCA = Relay characteristic angle
2. ROA = Relay operating angle
3. Reverse
4. Forward

Settings for each step

x means step 1, 2, 3 and 4.
DirModeSelx: The directional mode of step x. Possible settings are Disabled/Non-
directional/Forward/Reverse.
3
1
2
2
4
I
Transformer protection RET670 2.2 ANSI
1MRK 504 163-UUS A
V
ref
dir
ANSI09000636-1-en.vsd
Application manual
M12982-19 v10