Feb 27, 2009 #1 EddyWirbelstrom Electrical Feb 17, 2002 215 Does VFD load-side frequency remain constant when the line-side frequency changes by say +/- 10% ?
Feb 27, 2009 #2 DickDV Electrical Apr 5, 2004 968 Yes. The incoming AC is only used to make DC so as long as the voltage is up to spec, the input frequency could easily vary over +/- 10% without problems. In fact, most drives built for the world market are dual-rated for 50/60hz. Upvote 0 Downvote
Yes. The incoming AC is only used to make DC so as long as the voltage is up to spec, the input frequency could easily vary over +/- 10% without problems. In fact, most drives built for the world market are dual-rated for 50/60hz.
