(Same issue also posted under Energy…)
Hi all
I’m Looking for recommendations on a rotary pahse converter for my small shop (at present I have ruled out static). I will have at least 4 machines with 3-phase motors so I think replacing the motors is not financially attractive.
Max load I anticipate at any one time = 6 hp (2-3 hp cyclone + one machine up to 3 hp). There are quite a few offerings out there — from Phase-a-Matic & Cedarburg, to mom-and-pop shops that make ’em from used electric motors, to kits. Lots of stuff on eBay.
Can I get something decent for less than $500?
Replies
I bought one from tri phase industries that I have been happy with.
http://www.rotomaster.com/
Woody, you might do better posting this on Knots, more actual users there.
Joe H
you can actually make a homemade one by running a 3 phase slave motor off of single phase power , then running all legs of the 3 phase slave to generate/run the other 3 phase in the shop : you can increase total output by "idling" another of the machines while you run . This has been discussed at great length in some FW articles : try Knots
Edited 1/24/2003 2:05:16 PM ET by cutter
Real deal here Woody if you are in the right place, I'm trying to clean up a little.
If you are in Seattle area e-mail me and you can come by and I will give you a 10HP, 50 HP, or bigger 3 phase motor (up to 100 HP if you can lift it<G>). Got a pallet full of'em really cheap last year and only needed one. All you really need is a 1/3 to 1/2 HP motor to spin it up with a few switches and you are in business , as the posts before and the kits you've seen likely describe. (Note: the schemes to start by capacitor phase shift don't work well on a home circuit with a big motor)
PS - will not ship to anybody for shipping, and you couldn't afford my labor rate for packaging for shipping.
Thanks for the offer, Junkhound! Unfortunately I live far away, in the Midwest. If you can't find soemone to take them, keep in mind that copper fetches a good scrap price and cast iron a decent one. Plus a good way to preserve Earth. I even recycle pulled nails.
I've learned to hack a motor apart and pull out the copper in less than five minutes. Trick is to saw thru the windings at the ends.
Good luck!
I've kept bigger stuff for longer, DW has kinda indicated it will take longer to get rid of my collection than it took to collect it and doesn't want to get stuck with getting rid of all these treasures.
Last 'stupor' bowl day I put a notice in 'Keenjunk' that I would give away over a 2 tons of blacksmith tools at 11 AM PST when I got home from church (lots of big dies, one anvil -I still have 4, bunch of big tongs). Had 13 people waiting, they all went away very happy.
Anybody in Seattle area want a big 3 phase motor for use as a phase converter, e-mail me.
PS: re. Woody's scrap iron price, I live about 1/2 way between port of Tacoma and Port of Seattle, no place else to take scrap anymore around here, $40 for a PU and trailer load out here hardly pays the gas and effort to get there, so anybody want a couple tons or more of scrap iron also e-mail (it's other than the motors <G>)
PPS: Also will give away a '74 datsun truck (good body & bed liner, but missing manifolds&carb) and '78 Dodge Dip to anyone worse than me who'll haul'em off.
PPPS: Luka, if you didn't get my e-mail, I've still got lots of that 1/2" plywood you wondered about. pppps -- Apologies to Woody for turning his thread into a mini classified ad <G>, but its all free.
Edited 1/24/2003 9:26:55 PM ET by JUNKHOUND
Edited 1/24/2003 9:29:43 PM ET by JUNKHOUND
Edited 1/24/2003 11:55:47 PM ET by JUNKHOUND
Ya can make one out of a three phase motor.