Motors controlled by variable frequency drives (VFDs) are vulnerable to electrical bearing damage from bursts of VFD-induced voltages, a vital concern for retrofits that aren’t equipped with shaft grounding rings. This test kit allows easier measurement and documentation of VFD-induced shaft voltages before serious damage occurs.
The kit features a replaceable probe tip for accurate voltage readings on rotating equipment, conductive microfibers to ensure continuous contact with the motor shaft, and a portable oscilloscope that displays and saves the voltage waveform.
