Permanent Magnet Motors
The permanent magnet motor range extends the effective nominal speed range of the rugged industry workhorses down to 100 – 850 r/min. The motors can simplify drive systems by effectively eliminating the need of speed reduction devices. They are designed exclusively for frequency converter supply, where they provide high speed accuracy even without speed sensors because they are synchronous motors without rotor slip.
Features:
Torque range 1000 to 50 000 Nm
Construction based on standard induction motor design
Rotor magnetization by permanent magnets
Totally enclosed IP 55 construction
Air- or liquid cooled
The most common present drive systems, which permanent magnet motor solution could replace:
Traditional AC motor, frequency converter and gear box combination
Traditional slow speed AC motor, typically 10-16-pole or slower with frequency converter
Variable speed DC drive system with gear box
Output power : 0 - 220 r/min, 17 - 1120 kW at 220 r/min
0 - 300 r/min, 25 - 1600 kW at 300 r/min
0 - 430 r/min, 38 - 2240 kW at 430 r/min
0 - 600 r/min, 57 - 2500 kW at 600 r/min
Frame size : IEC 280 to 560
Frame material : Cast iron/Welded steel
Voltages : All voltages
Protection : IP 55
Cooling : Air or liquid
