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  1. oldnukeet

    380 Volt 50 Hz 3Ph. motor operating at 460V, 60 Hz

    Understood - My problem is that because I don't work with the equations every day I tend to get torque and output power confused. So yes - it is understood that we may not exceed the thermal limits of the motor's ability to dissipate heat caused by the increased "power density" (due to increased...
  2. oldnukeet

    380 Volt 50 Hz 3Ph. motor operating at 460V, 60 Hz

    Dick, yes exactly right. And it is European equipment that I am largely talking about in this case. Almost all industrial Woodworking equipment comes from Italy or Germany, some minor amounts from Austria and Spain. This is in fact a common thing that they do presenting equipment with the same...
  3. oldnukeet

    380 Volt 50 Hz 3Ph. motor operating at 460V, 60 Hz

    OK - Now I've got it. Thanks again for the input. This site has been very helpful. I'll be back!
  4. oldnukeet

    380 Volt 50 Hz 3Ph. motor operating at 460V, 60 Hz

    Thanks to everyone who has responded. This application were discussing is in fact motors that will be operated at 380/50 but were orginally 460/60 so all things being equal (i.e., the workload of the individual motors) there really shouldn't be a problem. The equipment in question is woodworking...
  5. oldnukeet

    380 Volt 50 Hz 3Ph. motor operating at 460V, 60 Hz

    I know that I have seen somewhere recently a fairly simple mathematical model that shows why running a 380 / 50 motor at 460 / 60 is OK. Obviously, it is a matter of maintaining the proper ratio of volts to hertz to avoid magnetic saturation and the resulting eddy currents and overheating...

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