Permanent magnet AC motor

Electric motors consume an estimated 25% of all the electricity generated in the world and up to 65% of all electrical energy used in industrial processes, much of which is consumed by electric motors. Regal’s Marathon SyMAX permanent magnet AC motors surpass European IE4 efficiency levels, five years ahead of their scheduled implementation. This is achieved through the elimination of rotor conductor losses, optimised fan design, precision-wound stator and variable speed operation. Compared to motors designed to meet other high efficiency standards such as NEMA Premium, the motor typically uses 30% less energy, thereby producing less carbon dioxide and a significant contribution to reducing the carbon footprint of individual machines, process, manufacturing and logistics facilities. The permanent magnet AC synchronous motors have a wider efficient operating range in terms of load and speed than many non-inverter driven induction motors. The design also offers improved speed and torque regulation, dynamic performance, and higher torque/amp, for those applications requiring maximum system performance. For retrofit applications, SyMAX motors are a direct drop-in replacement for Induction motors. They are configured to have identical footprint, shaft height and other critical NEMA or IEC prescribed dimensions. Significantly the higher power density of permanent magnet motors will typically result in a 2-3 frame size reduction, while providing the same output torque. Alternatively by matching frame sizes more torque is provided to power the host equipment.