NovaTorque, Inc. introduces its next generation design of 3hp and 5hp PremiumPlus+™ motors. NovaTorque’s Gen2.0 PremiumPlus+™ brushless permanent magnet motors, driven by variable frequency drives, boast motor-only rated point efficiencies of 93.0 percent and 92.0 percent for 3hp and 5hp versions respectively, far exceeding the levels achieved with induction motors. By comparison, 3hp and 5hp NEMA Premium® induction motors, when driven by variable frequency drives, achieve a motor-only efficiency of between 88.5 and 90.0 percent.
Importantly, due to its unique patented flux-focusing stator and rotor hub geometry, the NovaTorque motor produces this performance with an all-ferrite (versus rare earth) magnet design.
“The cost of rare earth (neodymium) magnet material, the basis of most conventional permanent magnet motors, has risen dramatically and is now more than 25 times the cost of ferrite. Further, supply of rare earth magnets, nearly sole-sourced out of China, is increasingly uncertain. The ability to use ferrite magnets allows NovaTorque to price its motors comparable to induction motors. This means OEMs and HVAC systems builders can now economically deliver permanent magnet motor efficiency with their systems” explains Johnson.
NovaTorque PremiumPlus+™ motors are packaged in standard NEMA frame sizes and mounting dimensions for easy substitution. Due to their high power density, NovaTorque motors are available both in the mounting frame size typical for induction motors, as well as one frame size smaller. NovaTorque PremiumPlus+™ motors are compatible with readily available variable frequency drives (VFDs) from most leading manufacturers, including ABB, Yaskawa, Mitsubishi, Fuji, Hitachi, Toshiba and others.
Filed Under: Factory automation, Motion control • motor controls, Motors • ac, Motors • dc, Motors (direct-drive) + frameless motors