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Will 250-255v From Rpc Fry My 3p Motor?????

Discussion in 'ELECTRICAL ISSUES - POWER YOUR MACHINES & SHOP' started by GT Mills, Nov 9, 2016.

  1. GT Mills

    GT Mills United States Mohawk Aero Registered Member

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    My rotary phase converter measured 247-258V when I tested it today under no load. I have a brand new $750 mill motor that just arrived to replace the one that I fried when I first ran my new purchase, an Enco 100-1525 mill, last week. I don't want to cook this motor, so can anyone tell me if it is safe to run these voltages? I thought 220-230V was what it was supposed to be, so I am concerned.

    The first motor had a low speed lead crossed up with a high speed wire, so I was pretty sure that's what burned out the original motor when I ran it on high after only a few minutes. But after testing the RPC, I have to ask.

    Thanks
     
  2. jim18655

    jim18655 United States Active User H-M Supporter-Premium

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    I'm not a RPC expert as many are on here but no-load voltages are usually higher than loaded voltages. The motor should be OK +- 10% on the voltage.
     
  3. Ulma Doctor

    Ulma Doctor Infinitely Curious H-M Supporter-Premium

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    you should not have issues at 247-258vac
     
  4. GT Mills

    GT Mills United States Mohawk Aero Registered Member

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    THanks. It runs fine.
     

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