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ABB Relion 670 series
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ANSI00000546-2-en.vsd
INDIR_A
DRV_A
AND
AND
INDIR_AB
DRV_AB
AND
INDIR_CA
DRV_CA
AND
INDIR_B
DRV_B
AND
INDIR_AB
DRV_BC
AND
INDIR_BC
AND
INDIR_C
DRV_C
AND
INDIR_BC
AND
INDIR_CA
OR
OR
OR
OR
t
15 ms
t
15 ms
t
15 ms
t
15 ms
REV_A
REV_G
REV_B
REV_C
INDIR_A
INDIR_B
INDIR_C
INDIR_AB
INDIR_BC
INDIR_CA
Bool to
integer
PHSELZ
OR
t
15 ms
REV_PP
ANSI00000546 V2 EN
Figure 112: Composition of phase selection signals for reverse direction
1MRK505222-UUS C Section 6
Impedance protection
233
Technical reference manual

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