First off....the Vulcan stator does get cooled by oil OD.
Denny, the stator is not always "producing power" as long as the motor is spinning...Because if he voltage is going nowhere it's not doing "work" (and thus not producing heat.)
If the r/r sends excess voltage to ground, the stator is "working"...if the r/r can "turn off" the voltage coming from the stator (as a light switch disconnects power) then no work is being done and the stator should not be producing heat.
If you disconnect the stator wires when the motor is turning by definition no voltage is flowing...the stator is not doing any "work" and won't be until you connect something to it...like a light or .....a voltage tester.
If it was producing voltage continually while not connected wouldn't it like build up? Where are all those electrons it's "producing" go? A fixed magnet and wire coil, or a spinnimg magnet and fixed coil only flow elections if there's somewhere they can go. Yes it does have "potential power" but that means it's at zero until it's released somehow.
I don't understand a lot about electronics but I do understand physics.
We here believe stator failure is related to heat. But no one has any data to prove its from the stator itself while it's doing "work" or from the hot oil it sits in.
All failures seem to caused by parts of the stator wires loosing their insulation and shorting out. No one has information on how hot the stator gets from doing its normal job, so it's not fair to assume installing an r/r that "turns off" the stator will make it last longer when it's still possible the insulation decays because of the oil and not because the wires getting hot from operation.
you did not read what I said said voltage which is called potential is always produced when a coil is immersed n a magnetic field even if it doesn't flow. you have coils sitting there with electrons moving back and forth with no where to go and even if you think you have a working knowledge of physics electron movement produces heat. How much I don't know neither do I without doing a lot of math (and i'm not going to)
I did not say amps or watts. Which is what current is measured in. What causes stator failure is an open ended question because we have several reasons why they could fail. but heat seems to be the number one culprit since the insulation is usually black and crispy where it fails. Low engine oil, dirty oil,over heated oil, bad quality insulation a failed and grounded RR and a whole plethora of factors .
Being able to switch an alternator on and off by collapsing the fields around the stator would likely increase the useable life of an alternator, but I have to agree that opening up the output leads completely is likely to do very little .
Back to your working knowledge of Physics, how does a micro wave heat food ? It causes the electrons and the rest of the molecule to move around internally and cause heat to be produced by friction internally. The same basic principle applies to the stator but just by a different method.
You need to study on the Ohms law and the principles of inductance and reluctance while you are at it. And by reluctance , I am not talking about your reluctance to admit you aren't smarter than everyone on this board. I'll admit you are a pretty smart guy but there are others on here who are too, of whom I am not any where near the cream of the crop. My advantage , I know that and defer to ones who do know a particular subject better than I.
I'll debate electric theories with you any time you are up to the task but this is a thread about Series and Mosfet RR's. I gave my opinion and solid reasons why backed by the facts. Ultimately it's up to the OP as to what he does.