HomeVariable frequency drive
Shaft voltage is not produced by the harmonic voltages and currents in the stator windings being supplied from a VFD; however, for VFDs with high frequency PWM carriers, the distributed capacitance will look like a low impedance pathway and can produce a greater shaft voltage than that produced in a similar direct drive machine. It is important to note that shaft voltage can be produced in non-VFD applications as well as in DC machines and has been observed in both motor and generator applications.
Category
AC Motor Control
Featured
![220V/380V variable frequency drive](/image/low-voltage-VFD-160-2840.jpg)
![Vector variable frequency drive](/image/Vector-VFD-160-0934.jpg)
Recent
Increase the speed of a motor by VFD
VFD in Crane and Hoist Applications
VFD for Fire Pump Motors
Is it VFD the best solution to control pump?
3HP VFD, single phase to three phase VFD
Insulated bearings for electric machines
Control ABB VFD through RTD 250ohm directly on water temp
Variable frequency drive Preventive Maintenance
Large VFD trips with power supply by transformer
Induction motor power factor
Understanding VFD basics
Does the motor lifetime depend on the starts number & frequency?
VFD in Crane and Hoist Applications
VFD for Fire Pump Motors
Is it VFD the best solution to control pump?
3HP VFD, single phase to three phase VFD
Insulated bearings for electric machines
Control ABB VFD through RTD 250ohm directly on water temp
Variable frequency drive Preventive Maintenance
Large VFD trips with power supply by transformer
Induction motor power factor
Understanding VFD basics
Does the motor lifetime depend on the starts number & frequency?