- Joined
- Feb 13, 2017
- Messages
- 2,138
Store-boughten 3 phase converters are generally connected "delta", most shop motors are wired "star". One will run on the other, either way. Just don't try to use the "neutral/ground" to get 120 volts.
What you are seeing is called the "wild leg", at least what we called it in my day. Two of your phase leads are connected directly to the incoming line. The third leg is synthesized by the rotary converter, basically a three phase motor and a handful of capacitors. The 1.73 factor is the square root of 3, a function of the third phase, showing up as a "wild leg" to the reference, usually neutral/ground. As long as phase to phase is correct within 5 or 10 percent, you're good to go.
By the way, that factor is also used for current...
What you are seeing is called the "wild leg", at least what we called it in my day. Two of your phase leads are connected directly to the incoming line. The third leg is synthesized by the rotary converter, basically a three phase motor and a handful of capacitors. The 1.73 factor is the square root of 3, a function of the third phase, showing up as a "wild leg" to the reference, usually neutral/ground. As long as phase to phase is correct within 5 or 10 percent, you're good to go.
By the way, that factor is also used for current...
