Frequency 50Hz or 60Hz

Discussion in 'General Electronics Chat' started by ckchamb, May 12, 2009.

  1. ckchamb

    Thread Starter New Member

    May 12, 2009
    I have a 125Kva 440V to 220V Transformer rated for 50Hz usage.

    I want to run it on 60Hz, can anyone tell me the effects that this will have on the transformer? Or in fact can it be done!

  2. t_n_k

    AAC Fanatic!

    Mar 6, 2009
    The losses will probably be somewhat higher at 60Hz c.f. 50Hz - you may have to marginally derate the transformer if you intend running it near its rated capacity. Perhaps the manufacturer can advise you, if still in business.
  3. flat5

    Active Member

    Nov 13, 2008
    Don't be afraid to try it. Test the voltage under load and not. Monitor it awhile under some load. If is not getting too hot, good.
    It will probably work ok on either 50 or 60.
  4. Darren Holdstock

    Active Member

    Feb 10, 2009
  5. kubeek


    Sep 20, 2005
    125KVA is quite a big transformer. I wonder what flat5 imagines by "a while" and "too hot", because my idea in this case is to monitor it for tens of hours under half the rated load, you really don´t want such a beast to suddenly start on fire after you install it somewhere.
    The temperature is even more complex problem, is the transformer oil-cooled? If yes, you should try to measure the temperature of the oil. But I have no idea what is the RIGHT temperature for such transformer. You should try to get some more detailed specs from the manufacturer.
  6. flat5

    Active Member

    Nov 13, 2008
    Well I was wrong and I learned something. Glad the responses were quick and no damage was done, I presume.