NigeEss
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| posted on 2/4/06 at 09:05 PM |
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3 phase converter
As the subject says, suitable for a 3hp lathe. And in the essence of Locost........
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mark chandler
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| posted on 2/4/06 at 09:50 PM |
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Big capacitor(s) !
The motor will provide 80% of full power and be easier to stall but once running you will be okay.
Alternative is to build a rotary convertor (Big capacitor and a free running 3 phase motor) like this.
http://www.metalwebnews.com/howto/phase-converter/phase-converter.html
I run a 24" 3hp power hacksaw with a bunch of capacitors only from Ebay for £10, kept adding capacitors until it started cleanly, then removed
some until it ran smoothly (motor grumbles if you over do it when its up to speed)
A power hacksaw has a heavy initial load when starting, you may not need additional capacitors to start a lathe.
Use ex amy oil cooled AC capacitors, get 10 x 22uF as a starting point and keep bolting them in.
Regards Mark
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NigeEss
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| posted on 3/4/06 at 09:35 AM |
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Not good with electrics and that build plan made myhead hurt 
What's the big capacitor option ?
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