Megohmmeters (meggers) are electrical meters used to check the resistance and condition of the motor windings and the condition of the refrigeration and oil environment around the motor windings. A ...

Not all inverter-duty motors are built the same—do you know how insulation quality impacts performance and lifespan?

While troubleshooting the cause of a motor failure, you discovered a phase imbalance of 5% at the motor leads. Now what? You need to find and fix the cause, but where do you start? Begin by ...

HVAC distributor cfm Distributors recently developed a list of items to test and/or questions to ask when dealing with sites that have experienced multiple failed compressors. The first step consists ...

An updated edition of the only American National Standard for repair of motors and generators — ANSI/EASA AR100-2020: Recommended Practice for the Repair of Rotating Electrical Apparatus — was ...

Electric dc brush motors have traditionally used wire-wound armatures that move through a magnetic-flux air gap. Engineers at ThinGap Motor Technologies, Santa Barbara (www.thingap.com), have come up ...

[Davide Gironi] shows us how to implement a sensorless brushless DC motor controller (sensorless BLDC) using an ATmega8 microcontroller. In order to control a BLDC motor you need to know its ...