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  • Users: Jacin
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  1. Jacin

    Phase converter/autotransformer 220 in / 440 out

    Hello all, Here's an update to my motor dilema with slight recap: I wired up a 10 Hp 3 phase motor to put 220V single phase IN and got 440V 3 phase out (Well actually idle voltage is closer to 480 but drops down to 440V when the machine is running). Currently everything is "jerry...
  2. Jacin

    Phase converter/autotransformer 220 in / 440 out

    Hi Dan, The 2 speed motor has only 6 wires in the connection box. I think I know where your heading and I had considered "opening" it up to see if I couldn't pull out the additional leads if present. I may still do that, but what made me stop was that I would still need to get a...
  3. Jacin

    Phase converter/autotransformer 220 in / 440 out

    Dan- fair enough - I get your point. BUT... (you knew this was coming right?)....The 10 Hp 3 phase motor I already have (free) - the machine motor which is a 2 speed motor is 5hp at 1750rpm and 6hp at 3500rpm. The contacts are all 440V coils. Given all this I figured IF (big IF) I could...
  4. Jacin

    Phase converter/autotransformer 220 in / 440 out

    Dan, I am NOT the inventor of this theory, but rather was told of it by someone who has had good success with it. Unfortunately I am unable to again contact them so I was looking for assurance on connections here before trying it out. Seems like an interesting concept. I can always just use a...
  5. Jacin

    Phase converter/autotransformer 220 in / 440 out

    Hello, I am new to the group and after reading several posts I appear to be in the right place. First off I am NOT electrical, but rather mechanical so PLEASE go easy on me. Problem in Nutshell: I have a piece of machinery that is 440V 3 Phase (6hp). I have 220V Single phase service. I have...

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