New to the forums here and trying to get some advice re: replacing welders I lost in a fire, but, while I'm hanging around I might as well try to be useful:
Rotary phase converters are, or at least can be, trivially easy to build. The simplest is just a 3 phase motor with your single/split-phase 240 hooked up to 2 of the 3 power connections, wiring for your 3-phase output hooked up to all 3 power connections on the motor, and a lawn-mower pull-start cord wrapped around the shaft.
Also requiring essentially no work, if you want a push-button starting rotary and don't feel like cobbling together the electronics, you can purchase one of those "static" phase converters, and hook it up to a spare 3 phase motor. The "static" converters are nothing more than the start circuitry from a rotary converter, and when you use one on a piece of equipment, you're essentially turning that piece of equipment into a rotary converter. Instead of hooking it up to equipment, hook it up to a spare, larger-HP motor sitting in the corner, and voila, rotary converter.
That being said, don't bother hooking up an inverter-powered welder like the dynasty to a phase converter. They don't need 3-phase input, and other than conceptually /maybe/ being able to pull slightly more power from your single-phase supply if you use an RPC to feed their third input, an inverter power supply isn't going to function any differently on single phase 240, than on 3 phase from an RPC.
Rotary phase converters are, or at least can be, trivially easy to build. The simplest is just a 3 phase motor with your single/split-phase 240 hooked up to 2 of the 3 power connections, wiring for your 3-phase output hooked up to all 3 power connections on the motor, and a lawn-mower pull-start cord wrapped around the shaft.
Also requiring essentially no work, if you want a push-button starting rotary and don't feel like cobbling together the electronics, you can purchase one of those "static" phase converters, and hook it up to a spare 3 phase motor. The "static" converters are nothing more than the start circuitry from a rotary converter, and when you use one on a piece of equipment, you're essentially turning that piece of equipment into a rotary converter. Instead of hooking it up to equipment, hook it up to a spare, larger-HP motor sitting in the corner, and voila, rotary converter.
That being said, don't bother hooking up an inverter-powered welder like the dynasty to a phase converter. They don't need 3-phase input, and other than conceptually /maybe/ being able to pull slightly more power from your single-phase supply if you use an RPC to feed their third input, an inverter power supply isn't going to function any differently on single phase 240, than on 3 phase from an RPC.
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