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Author Topic: 3 Phase rotary converter  (Read 1666 times)

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Offline petefrom bearswamp

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Re: 3 Phase rotary converter
« Reply #20 on: April 10, 2018, 12:46:13 PM »
My ignorance of this stuff makes MEGO.
Bought a converter kit about 17 yrs ago to run my 10HP planer and put it together OK but have now idea how it works,.
I t has several capacitors and the guy sent me a few spares which I haven't needed to date.
LT40SHDD51
Kubota 8540 tractor, Farmi winch
Kubota 900 RTV
Polaris 550 Sportsman ATV
1 Husky 1 gas Echo 1 cordless Echo
241 acres of woodland

Offline Kbeitz

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Re: 3 Phase rotary converter
« Reply #21 on: April 11, 2018, 12:23:14 AM »
My ignorance of this stuff makes MEGO.
Bought a converter kit about 17 yrs ago to run my 10HP planer and put it together OK but have now idea how it works,.
I t has several capacitors and the guy sent me a few spares which I haven't needed to date.
I bet that they are not spares... You need to put an amp gauge on each output leg and see if the amps are the same. Then do the same with a volt meter. All three lines should be within a few volts of each other hot to neutral. The spare capacitors they should be run capacitors used to balance your converter. More or less depending on your motor load that your using. It's trial and error to get it balanced. 12 to 28 mfd per output Hp. There will be to banks of them. So you will need to change both sides when doing this. From the true legs to the what I call the high leg.
Collector and builder of many things.
Love machine shop work
and Wood work shop work
And now a saw mill work

Offline petefrom bearswamp

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Re: 3 Phase rotary converter
« Reply #22 on: April 11, 2018, 09:03:01 AM »
Mine is 15 hp motor with 13 capacitors.
Motor is Marathon which I always thought was US but is chinese.
All was within spec when I built it.
As I recall, voltage on convertor leg was about 1 or 2 volts different than line.
LT40SHDD51
Kubota 8540 tractor, Farmi winch
Kubota 900 RTV
Polaris 550 Sportsman ATV
1 Husky 1 gas Echo 1 cordless Echo
241 acres of woodland

Offline Kbeitz

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Re: 3 Phase rotary converter
« Reply #23 on: April 11, 2018, 03:21:23 PM »
Mine is 15 hp motor with 13 capacitors.
Motor is Marathon which I always thought was US but is chinese.
All was within spec when I built it.
As I recall, voltage on convertor leg was about 1 or 2 volts different than line.
You cant get much better than that...
Collector and builder of many things.
Love machine shop work
and Wood work shop work
And now a saw mill work

Offline petefrom bearswamp

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Re: 3 Phase rotary converter
« Reply #24 on: April 11, 2018, 06:52:40 PM »
glad to hear that should i check current specs again in case of a failed capacitor?
LT40SHDD51
Kubota 8540 tractor, Farmi winch
Kubota 900 RTV
Polaris 550 Sportsman ATV
1 Husky 1 gas Echo 1 cordless Echo
241 acres of woodland

Offline Don P

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Re: 3 Phase rotary converter
« Reply #25 on: April 11, 2018, 10:06:57 PM »
Never hurts. Is this a rotary or static phase converter, is there a 3 phase "generator" motor in your setup or is it all capacitors?

Offline petefrom bearswamp

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Re: 3 Phase rotary converter
« Reply #26 on: April 13, 2018, 08:52:12 AM »
15hp motor and capacitors
I bought this 16 yrs ago before I got on the forum so might have built one myself if I had access to all the good info here.
Cost $750 back then.
LT40SHDD51
Kubota 8540 tractor, Farmi winch
Kubota 900 RTV
Polaris 550 Sportsman ATV
1 Husky 1 gas Echo 1 cordless Echo
241 acres of woodland


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