10
INSTALLATION, CONNECTION AND ENERGIZATION
DANGER!
Although the inverter commands the opening of the circuit breaker, there is no guarantee of its opening. In order to open
the medium voltage cabinets for maintenance, follow all the procedures of safe de-energization (refer to the Item 10.3.5 Safe
De-energization Instructions on page 10-20 ).
DANGER!
Bien que l’onduleur commande l’ouverture du coupe-circuit, il n’y a pas de garantie qu’il s’ouvre. Afin d’ouvrir les armoires
moyenne tension pour la maintenance, suivez toutes les procédures de mise hors tension (élément Item 10.3.5 Safe De-
energization Instructions on page 10-20 ).
✓
NOTE!
It is recommended that the MVW01 Kirk key is interlocked with the ring welded to the key of the input cubicle.
Shielding
Transformer
Primary
VADE1
VBDE1
VCDE1
VAD
VBD
VCD
VADE2
VBDE2
VCDE2
U
V
W
PE
U
V
W
PE
PE
Inverter
Figure 10.12: Power and ground connections for 18 pulses topology
✓
NOTE!
If shielded cables are used between the transformer and the inverter, then connect the shield to the protective earth (PE) at
both extremes of the cables.
Table 10.10: Power connections cable lugs and tightening torque
Identification
Column
Cable Lug
Torque [Nm] ±20 %
VADE1, VBDE1 and VCDE1
Rectifier M10
30
VAD, VBD and VCD
Rectifier M10
VADE2, VBDE2 and VCDE2
Rectifier M10
U Rectifier
M12
60
V
Rectifier
W
Rectifier
PE
Rectifier
M12
Shields
Rectifier M8
15
10.2.3 Low Voltage Auxiliary Supply
Control column power supply nominal voltage selection
An auxiliary voltage supply (220 V-480 V) should be available in the installation. This voltage must be wired to the terminal strip present in the
control column. The command transformer (T1) taps must be selected according to the available auxiliary voltage. For more details, refer to
the MVW01 electrical project.
MVW01 | 10-17
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