High-Frequency Grounding Straps (HFGS) are widely recognized as the most effective way to electrically bond equipment and are recommended by major motor and drive manufacturers. When a VFD-fed motor is bonded to the drive, stray high-frequency current can travel through the strap instead of other sensitive equipment. And when a motor is bonded to its driven equipment, any stray current between the two machines will travel through the strap instead of arcing through the bearings. Together, AEGIS® Shaft Grounding Rings and HFGS ensure that potentially destructive VFD-produced high-frequency current has a non-destructive path from the motor shaft to the frame, and from the frame back to the drive.
For more details download the HFGS Product Sheet.