WEG MVW3000 A0040 V023, User Manual

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MVW3000 | 3-7
3
MVW3000 | 3-7
Product Characteristics
Volt
ag
e on
pha
se
U
+3 V
CC
Vo
lta
ge o
n c
el
l U
1
Vo
lta
ge o
n c
el
l U
2
Vo
lta
ge o
n c
el
l U
3
+2 V
CC
+V
CC
-V
CC
0
-2 V
CC
-3 V
CC
+V
CC
0
-V
CC
+V
CC
0
-V
CC
+V
CC
0
-V
CC
Figure 3.7: Wave form of the phase voltage for a CHB of 3 cells per phase
The diagram also shows the medium voltage input switchgear, the low voltage auxiliary winding to perform the
pre-charge of the cell capacitors, as well as the fiber optic interface between the main control and the local
control of the power cells.