iwirehouses
Senior Member
We're moving a table saw that's 3 phase into a 120/240 single phase shop. A new 240V motor cost around $400. Is there any cost effective transformer or other way to make this work?
You don't mention motor size; Automation Direct has a single phase in, 3 phase out inverter rated 1 HP for $128. Their low$ drives don't go higher than that. In their better drive, you can get 2HP for $241 and 3HP for $296.We're moving a table saw that's 3 phase into a 120/240 single phase shop. A new 240V motor cost around $400. Is there any cost effective transformer or other way to make this work?
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There are other options, but I've converted 2 customers' small machine tools with the 0.5HP versions of the low$ drive and have satisfied customers. They get variable speed between pulley changes.
Perhaps I stated it poorly. These were 4 speed, stepped pulley lathes built in the 1940 era. I don't remember specifics, but the spindle speeds were something like 300, 500, 800, and 1200. There was some reduction before or after these pulleys, after, I think. Via the inverter, they could get from about 200 to about 1500 running from 40Hz to 80Hz. They were happy.In red are they just keeping the belts on to long, the out-put should be diminishing as the belt wears down... :-?
Personally I'd spend the $400 and get the new motor.