stator output 13.8V

[JayWB]

If I remember my AC theory correctly, the 80 volts is ALREADY a DC equivalent. If you actually check the AC waveform you'll see that it actually peaks at 80 * 1.414.

The DC equivalent number is just the average (RMSD) of the area under the rectified waveform.

But that was over 30 years ago...

[Killer2600]

If I remember my AC theory correctly, the 80 volts is ALREADY a DC equivalent. If you actually check the AC waveform you'll see that it actually peaks at 80 * 1.414.

The DC equivalent number is just the average (RMSD) of the area under the rectified waveform.

But that was over 30 years ago...

I wouldn't call it DC equivalent but if you want to I understand. Just remember or know there is a difference between Root Means Squared (RMS) (1/√2) and Average (2/Pi). You also need to know what your meter measures, not all meters read "True RMS" - the ones that do list or advertise the "feature"

[tom203]

Thanks but if you pay close attention to my wording that info doesn't apply because the stator is already wired and 3 leads are your output

You can believe anything you want- I gave you a simple link to help your understanding of 3 phase stuff. It's NOT 3 single seperate phases- their interconnection creates a distinct output- adding diodes makes life grand.

[Killer2600]

You can believe anything you want- I gave you a simple link to help your understanding of 3 phase stuff. It's NOT 3 single seperate phases- their interconnection creates a distinct output- adding diodes makes life grand.

Thanks again but I already understand what 3-phase is. 3-phase is indeed three individual phases, hence three windings, their relation is they are 120° out of phase with one another but otherwise ideally symmetric. But that doesn't matter, what I am pointing towards is there's no combination you can hook up your three stator output wires that will give you a voltage greater than the measurement of one of the phases (2-wire hookup). As posplayr pointed out if you add the 3-phases together you get 0 volts AC. Again this is from your pre-wired stator, I'm not taking about wiring a wye or delta coil/transformer from scratch.

[tom203]

In this stator layout ( wye connected- three wire leads), you will always be measuring the combined output of TWO phases, not one; this is why it's used- it gives you a higher voltage which is useful at low revs to at least get some charging ability.

[Killer2600]

In this stator layout ( wye connected- three wire leads), you will always be measuring the combined output of TWO phases, not one; this is why it's used- it gives you a higher voltage which is useful at low revs to at least get some charging ability.

I've not unwound a GS stator but to be technical, delta configuration also has 3 wire leads. Your trying to get into design theory, I'm working on the output end. In applying KIS (Keep It Simple) methodology, it doesn't matter how the 3-phase is made you only need to know what your output should be. And back to adding your three outputs, like posplayr said, they don't add!

[elrico]

Just a number... of many in any circuit design.

[tom203]

I've not unwound a GS stator but to be technical, delta configuration also has 3 wire leads. Your trying to get into design theory, I'm working on the output end. In applying KIS (Keep It Simple) methodology, it doesn't matter how the 3-phase is made you only need to know what your output should be. And back to adding your three outputs, like posplayr said, they don't add!

My dad used to say " it's no good beating a dead horse". Actually, you can make 3 phase windings in slightly different congfigurations, but since "design theory" is unappealing, I won't travel there. But if you like, you could make a stator that had 3 totally seperate phases - 6 wire leads- but it would have poor output compared to what Mr. Tesla dreamed up in 1880.

[Killer2600]

My dad used to say " it's no good beating a dead horse". Actually, you can make 3 phase windings in slightly different congfigurations, but since "design theory" is unappealing, I won't travel there. But if you like, you could make a stator that had 3 totally seperate phases - 6 wire leads- but it would have poor output compared to what Mr. Tesla dreamed up in 1880.

LOL, are we even on the subject of motorcycle electrical? I doubt you are, more like power transmission theory. You probably want to convert the stator 3-phase to 180 degree 2-phase with a power transformer made for such things so you can household appliances on the bike Or maybe your working on a flux capacitor like the Y shaped one in Dr. Brown's Delorean

[tom203]

LOL, are we even on the subject of motorcycle electrical?

Well, I am, but you seem to be struggling with it. Like I said before, you can believe what you want, but I'll be content with reality.

[Killer2600]

Well, I am, but you seem to be struggling with it. Like I said before, you can believe what you want, but I'll be content with reality.

??? Personally I think it's the opposite but back to adding up the stator output, you find me any combination of hooking up the stators 3 outputs that shows an increase over what we typically get during the stator papers test of any of the two wires and I'll gladly wave the white flag and admit your a genius over even the likes of resident electrical engineer "posplayr"

I think I got that clear as day now so you can stop/avoid side stepping and get right to an answer.

[earlfor]

Good intent, but not quite accurate.
I know you were pointing out the error in the title, but then it took a turn "south".

Yeah, each leg produces about 80 VAC, but they don't add up to 240.

Posplayr or one of the other electrical engineers would have to chime in to give you an accurate number, but it won't be 240.

.

Actually, the legs aren't even 80v at other than a single point. Since output of a leg is dependent on engine rpm, voltage varies and on a spec stator, the voltage output would only be 80 @5k rpm.

[elrico]

Since the common household V/A multi-meter measures average volts ac,it reads say 80vac per/leg,voltage between phases a+b,b+c,and c and a ,that is not the Max Volts value needed to find more info in the charging system.The 138.5V ac max. volts used(calculated fromOhms Law) for more info.like:now connect the 3 generator leads to the half-wave RR unit for the DC volt output magic...Vmax(138.5 AC) x 0.318=44.04 x 0.318=14V DC or so measured at RR out wire then to battery +. The half-wave rectfier simply cuts out the negative alteration.

[earlfor]

Since the common household V/A multi-meter measures average volts ac,it reads say 80vac per/leg,voltage between phases a+b,b+c,and c and a ,that is not the Max Volts value needed to find more info in the charging system.The 138.5V ac max. volts used(calculated fromOhms Law) for more info.like:now connect the 3 generator leads to the half-wave RR unit for the DC volt output magic...Vmax(138.5 AC) x 0.318=44.04 x 0.318=14V DC or so measured at RR out wire then to battery +. The half-wave rectfier simply cuts out the negative alteration.

As measured on various motorcycles, the maximum DC charging voltage is not limited to 14v. I have measured 17+ on occasion.

[tom203]

??? Personally I think it's the opposite but back to adding up the stator output, you find me any combination of hooking up the stators 3 outputs that shows an increase over what we typically get during the stator papers test of any of the two wires and I'll gladly wave the white flag and admit your a genius over even the likes of resident electrical engineer "posplayr"

I think I got that clear as day now so you can stop/avoid side stepping and get right to an answer.

Weren't you the guy that said..

"They never add up, due to the way the stator and regulator are wired, the output from the stator will always be one of the three phases. "

When you measure the stator output across any two of its wires, you are measuring the combo output of the phases, not just one because they are interconnected - open circuit one phase and your stator output falls off, why not try it on your bike and explore science.