Variable-frequency drives, or VFDs, are becoming more commonplace in motor retrofits and new installations. And while they boast increased energy efficiency as the main benefit, a small — but by no ...

The use of variable-frequency drives (VFDs) to control ac motors has increased dramatically in recent years. In addition to their low operating cost and high performance, they save energy. Today, the ...

Many of you have good in-house predictive maintenance departments, and others outsource that work to others. Either way, you routinely know when a bearing is deteriorating, and remove the motor from ...

In the age of energy efficiency, engineers are often excited about the potential cost savings associated with variable-frequency drives (VFDs) and their ability to operate motors to match demand loads ...

The experts at eMotors Direct outline how VFD’s can damage bearings and discuss preventative measures to prevent VFD induced bearing damage Electric motors fitted with VFDs (Variable Frequency Drives) ...

The AEGIS SGR bearing protection ring, from Electro Static Technology, protects motor bearings from shaft currents induced by adjustable-speed drives. The AEGIS SGR bearing protection ring, from ...

Electric motors fitted with variable frequency drives are at risk of bearing damage due to a build-up of current in the rotor that discharges through the shaft, damaging the lubrication and bearing ...