How do you determine the proper cable for 240V 3phase 15hp induction motor for a distance of 1000 ft?
This wouldn't be on a farm would it? 1000' line would need it's own utility pole, and transformer.
In order to determine proper gauge of welding cable you must first determine how long the distance you will need in cable, the entire length for both electrode side as well as work clamp side, and you also need to know the amperage you will be using. Once you determine this there are various references online and offline, most commonly in the owners manual to most welding machines, that will give you the proper size…
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the quick answer is you cant. squirrel cage induction motors need AC power to generate the magnetic field in the rotor...if however you have a motor that has brushes in it (drills, mixers,etc) then this motor can be run off ac or dc..the commutator brushes do the work of moving the current to the proper coils at the proper time.