Interroll Drum motor series i, S, S/A, D
General technical information
16
Version 4.1 (06/2015) en-US
Translation of original instruction manual
Peak current
I
A
A
80 %
Power factor
cos
φ
106 %
Efficiency
η
99.5 %
Rated motor voltage:
230/400 V - 3 ph - 50 Hz
System voltage:
276/480 V - 3 ph - 60 Hz - 2 & 4 poles (motor v 20 %)
System voltage:
265/460 V - 3 ph - 60 Hz - 6, 8 & 12 poles (motor v 15 %)
If a 50-Hz motor with a 20 % higher voltage is operated on a 60-Hz supply system, frequency
and speed increase by 20 %. But except for minor deviations, the rated motor parameters
remain constant (V/f constant).
If the supply voltage is increased by 15 % compared to the motor voltage, the actual motor
output decreases to 92 % of the original motor output.
In this operating mode, the drum motor should have an output reserve of at least 20 %.
Supply voltage = 1.2 x rated motor voltage (for 2 and 4 number of poles)
Power
P
kW
100 %
Rated speed
n
n
1/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 current
I
N
A
102 %
Peak current
I
A
A
100 %
Power factor
cos
φ
100 %
Efficiency
η
98 %
Effect of using a motor
with 50-Hz rated motor
voltage on a 60-Hz supply
system with 15/20 %
higher voltage
