ABB Relion 670 Series Technical Reference Manual page 347

1MRK505222-UUS C
Technical reference manual
INDIR_A
AND
DRV_A
INDIR_AB
AND
DRV_AB
INDIR_CA
AND
DRV_CA
INDIR_B
AND
DRV_B
INDIR_AB
AND
INDIR_BC
AND
DRV_BC
INDIR_C
AND
DRV_C
INDIR_BC
AND
INDIR_CA
AND
ANSI00000546 V2 EN
Figure 180: Composition of phase selection signals for reverse direction
Impedance protection
15 ms
OR t
15 ms
OR t
15 ms
OR t
INDIR_A
INDIR_B
INDIR_C
INDIR_AB
INDIR_BC
INDIR_CA
15 ms
OR
t
15 ms
OR
t
Section 6
REV_A
REV_G
REV_B
PHSELZ
Bool to
integer
REV_C
REV_PP
ANSI00000546-2-en.vsd
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