three-phase and single-phase

Very nice. You have 3 phase "Y" configuration represented nicely. Could you do this same rectification for "Delta" 3 phase configuration. If I remember correctly, it is a bit different, as you don't have a return conductor. Delta can have an earth safety ground accompanying the 3 power cables, but it isn't part of the circuit and can not be used as a "return" line. Good luck :-) This config always had me confused. :-(

There are 2 solutions to have a "work neutral" . Nonsymetrical one using grounding transformer. It create neutral point between two phases only so voltage measured to third one is higher and so this solution is rather used for powering single phase devices used when maintance squad perform field repairs where delta power line is only available. Second one create symmetrical neutral point to all 3 phases with 230v rms measured between phase and neutral in typical 3*400V system. This neutral point solution can also support continous dc currents so it can be used with 3ph half wave rectifier where dc current create loop with neutral wire. If u want i can post it here. I have it in my circuits already made as private circuit. I post it only if any of u want so.

I, for one, would like to see it. I was getting lost in your text and a "picture" would go a long way towards understanding just what you are trying to describe.

In any event, I was hoping for someone to maybe come up with full wave rectification using a standard 3 phase Delta configuration. I believe I have seen it done. But it was a long time ago and memory fails me. Thanks for responding. I would love to see what you have. Cheers.

I just found it. The reason I had so much trouble figuring it out, was because I thought they must be different. In actuality the diode configuration are both exactly the same. I will post the "Delta" and "Y" configuration shortly.

Well I have it connected right (I believe), but I am having trouble getting the simulator to like it. :o( I'll be back.

Beware strange high currents in delta triangle contain AC sources. Operating point calculus performed ar start calculate max possible current in branch and set those on. It not taking into consideration influence of other phases even if they are ideally matched and neutralize each other one's voltage in such connection.