Webinar – Protection of bearings of electric motors driven by frequency inverters

This webinar, the principles of bearing protection were presented, in electric motors driven by variable frequency.

Here you can download the Bearing Protection Manual and AEGIS

You can then watch the video recording the webinar:

AC motors operated by frequency inverters use pulse width modulation to control motor speed. This means that there are common mode voltages that are capacitively induced in the motor shaft and can discharge into the motor bearings.. This can cause surface corrosion damage, crystallization and striation by electro-erosion machining (EDM), resulting in breakdowns.