Sunday, August 28, 2016
I've spent a good deal of time in the field recently trouble shooting motor problems and observed the following. Often the bus voltages run high. When the voltage is high the magnetizing requirement of induction motors is also higher. Often the assumption is that if the voltage is higher the current will be lower without considering motor efficiency or power factor. Motors are designed to perform best at their rated nameplate voltage. First make sure that your bus voltages are where they shou ...