would a 3 phase welder work at all with a static phase converter

I am looking for addvise on if that a static phase converter would allow a three phase welder too work with a some what less welding amps,or work on lower
settings.
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On Tue, 18 Aug 2015 23:18:01 +0000, rowland

The main reason for a static phase converter is to get a three phase motor to start spinning. The secondary reason is balance the power a little with capacitors. So a static phase converter switches some caps out after the motor is spinning but leaves one or more connected. You can spin up a three phase motor with another motor or even a rope wrapped around the shaft and once the motor is spinning fast enough connect it to single phase power and it will continue to spin. Part of the reason for this is because a motor is also a generator whenever it is powered up and spinning. The reverse is also true-a generator is also acting as a motor when it is working. Three phase transformers, on the other hand, don't need to be started and so a static phase converter would probably be useless for a three phase welder. The phase shift caps might help a bit, I don't know. Caps can be used to help improve the power factor of a three phase welder but for a residental application would not make a difference in what you pay for power. As an aside, some three phase welders can be connected to single phase power, using only two legs of the three. The welder output then needs to be derated by a certain amount. The welder maker would have that data. Eric
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replying to etpm , rowland wrote:

Hi ETPM Thanks for the Inteliget lead.I need too find the wireing books on three phase welders and the welders that run on both 1 & 3 phase too learn the wireing differences,Any clues as for the best way too get some simlefied scidmatics,Thanks again.
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