Evaluation of the Impact of Harmonics on Electric Machine Reliability

Power, magnetic and ground harmonics have a negative impact on the reliability of your electric motors both electrically and mechanically.  We often focus just on the power harmonics when reviewing information on power quality, but rarely view the self-generated electric machine harmonics and the harmonic content present in grounds and neutrals.  Over the past several…

Stator Core Loss and Hot Spot Testing: An Overview

What is the importance and differences between core loss testing and hot spot testing in electric machines through the repair process?  How are they performed and what results do they provide?  In this short article we will discuss the basics of core and hot spot testing and their impact on electric machine reliability.  This white…