Why do you need a shaft grounding ring (SGR)?
Motors that are operated with a variable frequency drive (VFD) are more susceptible to bearing failure. In standard generated sine waves, the voltage is balanced; this means that t
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Courtesy AegisMotor bearings have a higher failure rate when the motor is run with a VFD. This is due to currents in the motor bearings. The classic solution to this problem is insulated bearings. Insulated bearings insulate the b
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There are two different phenomena that can create high dV/dt and high peak voltages.
Reflective Wave Phenomenon
Voltage wave reflection is a function of the voltage rise time (dV/dt) and the length of the motor c
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