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  1. vinmann

    Static phase converter

    If the load is fairly constant, take a volt reading from the 3rd leg to each of the other legs. Adjust the run capacitor to achieve balance or prevent over-voltage on the 3rd leg.
  2. vinmann

    Motor Start & Run Capacitor Duty Cycles

    I had a similar problem. Take the back cover off and rewire the start contact pair from series to parallel. You'll need a soldering iron and a couple of end of wire. A poor contact will arc while starting. In my case the start load was light so I reduced the start capacitor by 33%.
  3. vinmann

    Motor for use as a generator on miniature traction engine

    You could just go with a two bearing brushless 120 volt generator. Some thing like a Winco TB2400C may look more dimensionally correct. You could modify the rear cover for a more original look and you might find someone to modify the regulator for low voltage/low rpm use. Or you might find an...
  4. vinmann

    Chevy Volt - How's it work?

    Wait until the hacks are out to see the potential of the Volt. Some of the Prius hacks are amazing. You can enter a drive plan and in doing so the car can figure how much power it needs to generate in route for the trip. It may do it early if the car needs heat or it may wait until the most...
  5. vinmann

    powering a 480v ac drive from 240v

    This unit is a mechanically adjustable variable speed gear reduction. It has a belt and adjustable pullies. I was thinking I could slow the motor with the drive and adjust the speed back up with the mechanical adjustment if that is easier on the motor. Perhaps speeding up the motor and slowing...
  6. vinmann

    powering a 480v ac drive from 240v

    Thank jraef, Thats what I was looking for. I don't like the sound of 680 at least the catastrophic sound of it. Should I look for a transformer that has multiple taps that allow a lower output like 440 or less to improve longevity of the motor? If I stay under full load amps should I decrease...
  7. vinmann

    powering a 480v ac drive from 240v

    The motor has just three wires coming out of it and the plate has just one number for voltage and that is 440. The motor looks to be a proprietary part of reduction unit. I do not believe a replacement motor can easily be found. This unit drives the unload auger on a 30+ year old continuous...
  8. vinmann

    powering a 480v ac drive from 240v

    Sorry about the incomplete data. I have 240v single phase. The ac drive is an Emerson Prism 2950-8002 which I don't have a manual for. I read where some ac drives will allow single phase hook up but at 2/3 of output rating. In my application would the 3hp drive be de-rated enough to allow full...
  9. vinmann

    powering a 480v ac drive from 240v

    I have a 440v only 3ph 1hp motor as part of a variable speed gear reduction system. The motor is connected to an ac drive rated at 3 hp. The problem is I do not have 440v or 3ph available. The question is would a voltage doubler circuit be able to power this motor? How much capacity is needed...

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