Kataeb
Member
Hy guys, between a dc motor+drive and an ac motor+drive, which one has better power factor? Which has more energy savings? Has anyone approximate figures that show the power consumption difference between the two. Thank you
dc motor+drive / ac motor+drive power saving
- Thread starter Kataeb
- Start date
DickDV
Member
Well, as usual, it depends. In North America, using a modern Premium Efficiency AC motor, you can expect about 7% better efficiency with AC.
Exactly how that translates to Lebanon, I don't know, but you should expect at least 5% better efficiency with the AC system.
Don't forget the huge difference in motor maintenance costs over the years.
Exactly how that translates to Lebanon, I don't know, but you should expect at least 5% better efficiency with the AC system.
Don't forget the huge difference in motor maintenance costs over the years.
DamianInRochester
Lifetime Supporting Member
I think on the drive end as well, between cables losses and losses in the electronics, DC drives tend to have more waste heat. I am not 100% certain of this, but it is something I have noticed.
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