Let's try to put out the flames on this 180 degree on 1 phase thing, since my Asbestos Monitor is overheating [Linked Image]

If looking at it that way makes more sense to anyone, then by all means - feel free to figure it that way. No harm no foul! That wouldn't make any installation dangerous in any way, so as far as potential damage being done by viewing it that way, only Calculus heads and Electrical Engineers get hurt by flying inaccuracies - egos heal quite rapidly, compared to human flesh.

Maybe I could toss in a real quick and dirty reason why the 180 thing is not proper theory, then just leave it at that - as this is really something that doesn't deserve so much attention.

Example:

3 phase sine waves on a scope's display [or in either a wave diagram graph, or using drawn vectors].
3 separate phasors [waves], separated by 120 electrical degrees in generator rotation time.
What are we referring to here??? Think this one out, because it will completely unmask the 1 phase thing.

We are looking at the flow of each individual phasor [or wave] and viewing the current flow in only one relative polarity.
Simply we are looking at only one conductor, but there's an equal, but opposite thing happening on the opposite end of the coil [transformer or generator] that the waveform [current] is coming from. This is happening as well on the remaining two coils in the 3 phase output.
In other words, for the one wave you visualize coming from the coil, it's current is being teeter-tottered - or bounced back and forth through the coil.
When one side of the coil comes out of Peak + direction and hits the zero line, the opposite side of the coil starts at zero line, then rises to peak +
There's no way to place these two items in a 180 degree lag or lead. They are of the same origin. Very simple Calculus here.

If that wasn't true, would we still call this 3 phase?? that would make all 3 phase systems 6 phase.

Take 2 of the 3 phase coils away, and you have 1 phase. The exact same follows on the 1 phase coil - it has only one phase [phasor, wave, sine/cosine, or vector] - regardless of how many wires are tapped off the secondary coil, or how many separate secondaries there are. Primary input is only one stand alone phase - even if derived from 3 phase power. It can only create a single flowing magnetic current in the core - it goes in one direction, stops, then flows the other way.

Polyphase transformers / generators can accomplish what appears to be a six or nine phase output from only having three phase input - mainly because they are polyphase core/coils - with polyphase inputs - not just a single stand alone phasor / vector.

Multi secondaries could easilly produce 6 and / or 9 phase outputs, since coil windings and relative polarity on those coil windings can accomplish leads/lags in secondary output currents - differing from the Peaks or zero crossings times on the other set of coils [set of coils meaning the other 3 phase secondary, which is isolated from it].

Running one secondary through Capacitors would definitely create an offset in peak/zero crossing phase time - compared to another phase.
Delta vs Wye with precise polarity points, wound in a lead/lag fashion can accomplish 6 phase output - hence the 6 phase transformer and motor.
6 phase motors will have 6 coils connected in either double delta or double wye fashion.

The main point of the 6 and 9 phase Rectifier Transformers is to push a "pseudo high frequency" into a DC converter. Thus the converter will need separate "Diode Trios" for each set of 3 phase inputs. If these have sufficent phase time lags/leads with the other sets respectively, the end result of DC entering the input of the filter will have a very much smoother and less choppier DC, due to the Hz leaving a ripple on uppermost peaks being more like 1080 Hz, rather than simply 360 Hz from straight 3 phase, or 120 Hz from single phase.


I invite all critisism on the above text - but please explore all options first [verify your claims with hard evidence from several publications {books}, then use them as quotes when replying with any disputed facts].

Open to all suggestions.

Scott SET


Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!