User manual

12
Version 2.4 (10/2011) en
Original instructions
Drum Motor
General technical information
Use of 50 Hz motors in a 60 Hz net supply
This option is not applicable for D-series.
Effect using 50 Hz rated motor
in a 60 Hz net supply with the
same voltage
Using a 50 Hz motor in a 60 Hz net will increase the frequency and therefore the
speed by 20%. If the rated motor parameters are to be kept constant a 20%
higher input voltage would be required (law U/f). However, if this 20% higher
voltage is not supplied all voltage dependant parameters will be affected in
accordance with the following scheme.
Effect using 50 Hz rated motor
in a 60 Hz net supply with 15/
20% higher voltage
Using a 50 Hz motor in a 60 Hz net with 20% higher voltage will increase the
frequency and therefore the speed by 20% but will maintain all the rated motor
parameters subject to small variations (law U/f).
Motor rated: 230/400 V - 3 ph - 50 Hz
Net supply: 230/400 V - 3 ph - 60 Hz
net voltage = rated motor voltage
Power P kW 100 %
Rated rpm n
n
U/min 120 %
Rated torque M
n
Nm 83.3 %
Starting torque M
A
Nm 64 %
Pull-up torque M
S
Nm 64 %
Pull-out torque M
K
Nm 64 %
Rated amperage I
N
A 95 %
Starting amperage I
A
A 80 %
Power factor cos  106 %
Efficiency  99.5 %
Motor rated: 230/400 V - 3 ph - 50 Hz
Net supply: 276/480 V - 3 ph - 60 Hz - 2 & 4 poles (motor voltage + 20%)
Net supply: 265/480 V - 3 ph - 60 Hz - 6, 8, 10 & 12 pole (motor voltage + 15%)
Note
If the net supply voltage = motor voltage +15% the actual motor power will be
92% of the original motor power.
net voltage = 1.2 x rated motor voltage (for 2 and 4 poles)
Power P kW 100 %
Rated rpm n
n
U/min 120 %
Rated torque M
n
Nm 100 %
Starting torque M
A
Nm 100 %
Pull-up torque M
S
Nm 100 %
Pull-out torque M
K
Nm 100 %
Rated amperage I
N
A 102 %
Starting amperage I
A
A 100 %
Power factor cos  100 %
Efficiency  98 %