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Re: How to determine three-phase power



Original poster: "David Speck by way of Terry Fritz <teslalist-at-qwest-dot-net>" <dave-at-davidspeckmd-dot-org>

It is true that you can make a 3 phase convertor this way, but you will 
still be powering it from a single phase line.  Assuming an optimistic 80% 
conversion efficiency, you will only be losing 20% of your power in the 
conversion, which won't help your TC input.
Dave

>You can use a regular 3-phase induction motor and a big run capacitor to 
>convert single-phase power to 3-phase. You feed one phase of the motor 
>straight off the line and another phase via the capacitor. The motor 
>generates the third one. A lot of folk who buy surplus 3-phase machine 
>tools use this trick.
>
>Steve C.