Nidec Motor Corporation announces an upgrade and expansion of its Premium Efficient Inverter Duty stock motor line. The company has redesigned its WPI Inverter Duty motors to meet NEMA® premium efficiency levels in response to new Department of Energy regulations, scheduled to take effect in 2015. The redesign of the 15-30 horsepower vertical high thrust motors includes features to protect against harmful effects when the motors are used with a VFD. These features include a shaft grounding ring to discharge shaft current without harming the bearing and winding thermostats to protect the motor from incidental over heating when operated at low speeds for extended periods of time.
Nidec Motor Corporation