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Fan blades - United States

United States
  1. 50HZ 60HZ CONVERTER INC

    United States

    You mainly need to ensure that you do not operate it at a higher V/Hz (50Hz or 60Hz) ratio Than it was designed for. 1) That you should be able to use the same frequency converter at 60Hz, and even at 20% higher nominal rating, due to increased voltage, keeping currents the same. 2) Reduce cooling from the same 50Hz/60Hz motors. I would prefer to order new fan blades, or reduce the blade angle a little, and at the same time cut the tips off, to make a smaller diameter motor. But I would leave this bit to the experts! There should not be any problems in reverse the whole set-up, using a frequency converter designed for 60Hz in a 50Hz application, as long as you reduce the voltages by the appropriate 16.67 percent. You just have to ensure cooling is still adequate. GoHz is of course the easiest to handle in both cases (no fans to play around with).

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