ABB RES670 Technical Manual page 190

Section 8
Current protection
|I |
OP
Pickupx
DirModeSelx=Disa bled
DirModeSelx=Non-dire ctional
DirModeSelx=Forward
DirModeSelx=Reverse
ANSI12000008 V3 EN-US
Figure 53: Simplified logic diagram for OC4PTOC
184
Characteristx=DefTime
a
a>b
b
AND
Characteristx=Inve rse
OR STAGE x_DIR_Int
AND
OR
FORWARD_Int
AND
REVERSE_Int
AND
OR
0-txMin
AND
0
Inve rse
ANSI12000008-3-en.vsd
Phasor measurement unit RES670 2.2 ANSI
1MRK 511 408-UUS A
0-tx
0
PUx
STx
ANSI12000008-3-en.vsd
Technical manual