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Ground straps protect against VFD currents

Channels currents away from bearings and safely to ground through the motor frame.


379_electrostatic_AEGIS-HF-Ground-StrapAEGIS’s high-frequency ground straps ensure a very low-impedance path to ground for the high-frequency currents generated by VFD-driven motors and systems for long-term bearing protection.

Non-zero impedances within a ground system can give rise to transient voltages and ground system currents that travel along motor shafts.

The straps channel currents away from bearings and safely to ground through the motor frame, mitigating frosting and fluting damage, premature bearing failure and costly motor system downtime.

High-frequency grounding straps bond the frames of motors and other system components to equalize their earth potential and eliminate ground loops.

The 12-in.-long flat-braided, tinned copper straps have a circular hole on one end for easy installation around the foot mounting screw of NEMA- or IEC-frame motors, and a ring terminal on the opposite end.

Custom lengths and terminations are available.

Aegis is a manufacturer of bearing protection rings and associated technologies based in Mechanic Falls, Me.

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