ABB Relion 670 series - Page 883

>
<
V
L
V1 INNER DB
<
V1 DB
V2 DB
>
V
B
AUTO
a
b
a<b
a
b
a>b
a
b
a<b
a
b
a>b
>
a
b
a>b
VRAISE
VLOWER
V2 INNER DB
V MAX
FSD
en06000511_ansi.vsd
MAX
MIN
V CIRCCOMP
V CIRCCOMP
AND
OPERSIMTAP
PARALLEL START
OR
AND
AND
AND
AND
AND
AND
OR
OR
OR
OR
AND
ANSI06000511 V1 EN-US
Figure 466: Simplified logic for parallel control in the circulating current mode
1MRK 502 066-UUS B Section 14
Control
877
Technical manual