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Is there any difference between the variable speed drive and variable frequency drive?

Power Distribution Engineering Electrical Electrical Engineering Electrical Design
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Question ajoutée par Muhammad Qasim , Senior Electrical Engineer , Energy Associates (SMC Ptv.) Ltd.
Date de publication: 2016/08/18
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Juan Raphael Concepcion
par Juan Raphael Concepcion , Power Plant Maintenance Supervisor , WKSA Power Contracting Company

vfd & vsd are just the same.

RAJESH KOLANJINATHAN
par RAJESH KOLANJINATHAN , Senior Instrumentation and Control Engineer , Drake & Scull International PJSC

 

A VFD which could also be called an adjustable frequency drive, an AC-drive or an inverter drive can only be utilised on AC motors.

The term VSD, variable speed drive or adjustable speed drive can be used in respect of drive systems that utilise AC or DC motors and occasionally even completely mechanical methods of speed control.

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