Hi,
Well this is an Industrial application in the USA that uses 480 VAC 3-Phase delta. There is three phases input to the transformer, and three phases directly out of that to the "3-Phase" rectifier, then 24VAC, 20A output with a smoothing cap etc.
Additionally, from another source I'm told that the Vrms at the input to this particular rectifier is "roughly" ........Vrms= Vdc / 1.35. So for 24VDC output, input Vrms required would be 24/1.35=17.77 Vrms (line-line).
Yes, I'm purely curious as I didn't know what I should expect on the Input side.
I'm also curious if they used 3-phase to cut down on the Line Amps / Conductor size and....to get a better "quality" output ampltidue after rectification and before smoothing out. Just a thought.
Appologie's for maybe talking about 3-phase on an electronics forum....but there are diodes involved : )
Lastly, I'm a UK guy, working on German equipment, in the USA !!.
Cheer's