I am working on a project where they replaced a 3000hp DC motor with a 3000hp AC motor. They are claiming significant energy savings by going with an AC motor with VFD control. The old DC motor also had speed control. The 2 motors have very similar efficiences (95.4%-DC, 96%-AC).
Is there significant energy savings inherent in an AC motor with VFD control as compared to a DC motor with speed control?
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
PCB design is a purposeful process. In essence, every PCB design is a complex puzzle that requires a designer to incorporate critical components and tight schematics into a piece of technology that is governed by rules, constraints and industry standards. Download Now