1-phase to 3-phase inverter

[d3adp00l]

http://cgi.ebay.com/25-HP-ROTARY-PHASE-CONVERTER-CNC-air-compressor-saw_W0QQitemZ390098532173QQcmdZViewItemQQptZBI_Electrical_Equipment_Tools?hash=item5ad3af374d

Although I am not sure why you would want such a large phase converter. Its easier to buy a single phase motor, and swap it out for the 3 phase motor. But thats just the electrical contractor that I am talking.

[rkahler]

I'm not expecting that somebody else will do work or research for me.
I was hoping to find somebody who worked with such devices to point on some of them.
Local engineers had nothing for me, no device, no idea.
So, thanks for all ideas.

[the_big_m_in_ok]

rkahler said:

Local engineers had nothing for me, no device, no idea.
So, thanks for all ideas.

I had an idea for a regeneratively cooled(using its own fuel; typically liquid ammonia, xenon, etc) ion/plasma thruster and I got some free advice from a business owner who did custom prototyping:  Get a patent or your idea will probably be stolen.

That was the only time I got free advice.  I suspect all others---especially nowadays---will require payment.  Probably in advance with a signed contract.
My Dad was an engineer for 30 years and he never worked for free.

All Members and informal forum guests might want to keep this FYI experience in mind for the future, if they don't know now.

--Lee

[MrMag]

Not sure if you already found something but:


http://www.ronkelectrical.com/add_a_phase.html

[pese]

Check out http://en.wikipedia.org/wiki/Inverter_(electrical)....

Look at the section marked 'Three phase inverters' for a simple circuit. The only problem is that it is missing the triggering circuit.

A different way to make 3 phase energy is to modify a distributor.

You must no do this work.
The resistance of 3 heaters in the boiler ist done TO SPLIT THE NEEDED POWER in 3 pases of YOUR LINE.

Because it is to mucht to suck 20Kilowatt from 1 Phase.

: so approx 3 time 7 KW are split to  3 phases.


IF YOU will invert 1 pase to 3.  You must alse have in ONE Phase 20KW

and this ist to much.


IF THIS IST possibel,
You acan connect all 3 phases-wires (from the boiler) to ONE Phase of your line-source.

BUT the 20KW (will not hold by the fuse and hous installations)

What you cabnn do ...
IS.

Conect only 1 phase of the boiler to your Line-supply.

AND WAIT

3 time longer to heat the water.

No problem , if all was installed - use this way.

G Pese


---
For other appication. (if the 3 phase (with each 120 degrees shifting ist necessary)  to drive motors enz.

The cheapes way ist to use am motor-generator.

1 phase motor coupled with an 3 phase generator (dynamo) .



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