3 phase power

[BrianK]

Can anyone tell me how to setup a motor to make the 3rd phase of power so i can run a 3phase motor

.

Editors Note;


This thread has gone off the topic with the complaints about one of the comments. It has been answered so in order to keep the peace I am shutting off the comments.


Editor

[wdyasq]

Ron

[oztules]

The best article to achieve this is at waterfront woods in an article by

Rick Christopherson at Waterfront woods .

Try this link:

http://home.att.net/~waterfront-woods/ and goto building a phase converter.

Explanations don't get better than this....if I had found this before I built mine......would have saved me a lot of head scratching.

................oztules

[12AX7]

Hello BrianK

I think this is what your asking for..

http://www.metalwebnews.com/howto/ph-conv/ph-conv.html

[oztules]

Well Ron, interesting comment ..

I feel you would do better to stick to the topic, and not use quotes from a woman who obviously has some issues to sort out, in order to explain the process of inducing the third phase......

.............oztules

[DaveW]

Not knowing your level of expertise, I hesitate to answer. If you want safe, then consult a qualified electrician for recommendations and installation.  There are at least 5 major types of motor loads, with sub-headings under most of them.  At the least, use a 50% larger motor than the load.  If starting a Design E motor, use a 3 phase motor with three times the HP rating.  If starting a motor under load, it may take 5 to 10 times the rated HP to start.  If you still are interested, Geo. Carlson gave a good talk at the Houston home metal club a while back.  You can find his writeup at homemetalshopclubdotorg, look under projects. On the AC voltage of the capacitors, I would not use 250 volts.  Safer to go to 450 or 600 volt, things that may go BOOM when I have my hands around a 16" saw are not high on my list. One last note, if the motor in question requires 4 wire wye inputs, you MUST use a delta to wye isolation transformer after the converter and before the motor. Please be careful.

[rpcancun]

Im just curious as to why it wasn't deleted.

If there where ever a useles post it's that one,

no info, just a pure negative post,

With a derrogatorry and child like closing.

[willib]

big grin , big big grin

[willib]

Ron i think your quote is repulsive

[inode buddha]

You can run a 3-phase generator from a 1-phase motor, just make sure the HP is big enough. These are commonly called "rotary converters" often seen in metal-plating shops, welding companies, and factories. Here is an example:

http://www.surpluscenter.com/sort.asp?UID=2006051603205075&catname=electric&keyword=EPPC