Electrical installation
17
10/2018 - V01
Q3 15-150A
Pow
er
con
nec
tio
n
4.5
Power connection
Direct power connection
Phase
L1
Bolt X10:16
Phase
L2
Bolt X10:15
Phase
L3
Bolt X10:14
Note:
L1, L2, L3 – clockwise rotating field
Protecting earth – PE connection
Unit Q3 x/x-
Power choke
Fuses A
Type current
KD-three-phase current
Superfast acting
K-Phase choke
installed
240
KD5-250
6 x 250 A FF
360
K170-400
6 x 315 A FF
480
KU150-600
6 x 400 A FF
840
KU150-800
6 x 500 A FF
Power connection with an auto-transformer
1.1
x continuous motor power
Secondary voltage
0.9 x Motor voltage
Transformer fuses
Slow acting
Observe the switch –on current!
Nput fuses F1, F2, F3
Rf. to the table above
Q3-V747-with filter
Attention:
If the secondary voltages produced by the transformer are inferior to 60% the voltage watchdog
has to be adapted. These modifikations may only be effected in the factory and thus, the
voltages have to be indicated on order.
Watchdog connection
LED BTB inactive
>>>
missing phase
>>>
wrong rotating field
Line protection
Power choke
Transformer
guard
