What are shaft currents and how to protect my AC motor

Over time, continual arcing within a motor will cause damage to the surface of the bearing raceway resulting in vibration and heat, loud operating noises, and eventually motor failure. Fortunately, there are several practical and easy ways to mitigate shaft current issues. Using proper VFD cables and bearing protection will help protect the life of your motor and driven equipment. Brush protection rings and insulated bearings are just a few ways to mitigate bearing currents that can harm the motor and equipment. Including these preventive measures will ensure peace of mind and increase the reliability of your inverter duty motor performance. Contact your local ABB representative for more information related to motor bearing protection: https://bit.ly/3qZgt9N Learn more about Baldor-Reliance motors for the HVAC industry: https://bit.ly/3rbKHaf