How to be 30 % more efficient while EXTRUSION?
AC Motor: 45 kW, 1.470 rpm, 292 Nm, IE2 – run by driver, Motor efficiency % 93.1
SQME Synchronous torque motor ( SQME 250-500 )
PS: The water cooling enterance is existing on the gearbox. However, it declared that the heat rejection can be from the body up to 58 kW. This issue was not included in to the efficiency measurement.
Measurement setup
Hioki Network Analyzer measured voltage, current, cos j, active and reactive power, harmonics of voltage and current on each phase of the motor and ambient temperature, winding and motor body temperature were measured and recorded during the whole test period.
Torque sensor converted the torque in Nm into +/- 0 – 10 V and was connected to the network analyzer.
Comparison on torque and power consumption w/o load and varied speeds
Efficiency comparison under varied loads in nominal speeds*
* 0.37 kW exchanger pump and cooling fan on the motor were not included to the efficiency calculation.
Comparison on torque and power varied load at nominal speeds
SQM vs Geared AC Motor
by 90 % load 10,5 % and by 30 % load 30,1 % more efficient.
** 0.37 kW exchanger pump and the motor cooling fan over 50% load nad under 50% of nominal speed were included in the efficiency comparison
Comparison on torque and power varied load and varied speeds
EMF Motor - President of the Board - ENOSAD - 8. and 9. Period President of Industrial Automation Manufacturers Association
2yNowadays, Energy Efficiency is very important. EMF Motor helps also to produce with high precision and accuracy due the high speed stability thanks to extremely low torque ripples.