34
Unidrive M / Unidrive HS Modular Installation Guide
Issue Number: 5
Figure 4-10 Layout for two Unidrive M / Unidrive HS size 11D with single size 11 rectifiers operating on a 12 pulse phase shifted AC supply
* INL chokes may be omitted if:
1. The transformer is dedicated to the drive i.e. not shared with other equipment.
2. The transformer has reactances from primary to secondary and between secondaries of at least 4% based on the drive rating. This represents a
fully-wound transformer with loosely-coupled secondaries whose rating (kVA) does not much exceed the drive rating.
M
a
s
t
er
M
a
s
t
er
F
o
ll
o
wer
F
o
ll
o
wer
IN
L
XXX
Lin
e re
a
c
to
r*
IN
L
XXX
Lin
e re
a
c
to
r*
Fuses
Fuses
O
T
L
XXX
sh
a
r
in
g
ch
o
kes
U
V
W
U
V
W
O
T
L
XXX
sh
a
r
in
g
P
a
r
a
llell
in
g c
a
ble
ch
o
kes
L3
L2
L1
L3
L2
L1
11D
11D
11
11
Summary of Contents for unidrive m
Page 157: ......
Page 158: ...0478 0141 05 ...
