Have you ever wondered how accurate your motor nameplate speed is? You might be surprised that the National Electrical Manufacturers Association (NEMA) MG-1 allows +/- 20% of rated slip rpm. Slip is the difference between synchronous speed of the stator magnetic field and the actual speed of the rotor. Given this level of tolerance it’s not surprising that finding speed in your current spectrum isn’t always that cut and dry. The MCEGold software also allows you to select an operating speed in addition to the nameplate speed to improve the auto speed acquisition. Think of it like calibrating the nameplate speed for actual operating conditions.