Permanent magnet motor

ACinductionIP55

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. 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 Key features and benefits • Designed for operation with variable speed drives • Well-suited for low speed operation • Lower maintenance cost • Reduced spare parts inventories • Easier system installation • Higher 'system reliability' • No mechanical power transmission losses •Construction based on standard induction motor design •Rotor magnetization by permanent magnets •Totally enclosed IP 55 construction •Torque range 1000 to 50 000 Nm