Electric motors fail more often than they should. Sometimes, it is not the motor’s fault. The real issue lies deep within—where current leaks through the bearings. That is where insulated bearings ...

All major manufacturers of three-phase ac induction motors offer “inverter-duty” or “inverter-ready” models, but while these motors have inverter-rated insulation to protect the windings, the bearings ...

Encouraging results from recent up-tower testing at a wind farm in Oregon indicate that the conductive-microfiber bearing protection ring is preventing generator bearing damage. Designed by the ...

Inverters used to control a motor’s speed or torque — also known as variable frequency drives (VFDs) or adjustable speed drives — can induce unwanted motor shaft voltages that cause premature motor ...

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) ...

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 ...