Variable frequency inverter

Discussion in 'General Electronics Chat' started by Tuffe, Mar 30, 2011.

  1. Tuffe

    Thread Starter New Member

    Mar 9, 2011
    Hi, everybody,
    Does someone know if it is possible to use a variable frequency inverter, made for controlling AC motors at 400V 50 Hz, on 230V 50 Hz ?

    Regards. Tuffe
  2. BillB3857

    AAC Fanatic!

    Feb 28, 2009
    It depends upon the inverter. Some are manufactured with a wide range of input voltage as being acceptable.
  3. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
    They are quite common for 3-phase motors. Just look up VFD (variable frequency drive).

    Edit: On re-reading your question, refer to the spec sheet for the controller. Most will have a low-voltage cut-off, so a 440V controller will likely not work on 208V.

  4. strantor

    AAC Fanatic!

    Oct 3, 2010
    look into yaskawa drives. I remember reading a data sheet a while back for one of their drives that would accept 220V single phase and output 480V 3phase but the rating was small, only low power motors. I know those aren't the specific numbers you listed but their drives are pretty flewxible and you could probably get what you want by changing a few parameters in the drive. I can't remember the model#, sorry.