Body
DougThe generator, I have been having voltage regulator blues with, works, and now, I think I understand how.I ran the generator at about1800 rpm as opposed to 3600, having by passed the 300 dollar dead regulator. That just takes it out of 60hz down to about 25 hz, which is of no immediate concern as this is just a test to get life beyond a 300 dollar voltage regulator chip box.There are two grounds, and two hot leads on those two coils between ground, and one hot lead, I was getting 40 volts AC , which I was able to regulate by starting at 4 volts dc, using an adjustable 25 amp pyramid power supply, and going up to 14 volts, seeing the voltage chasing the increase to the electromagnetic rotor magnet to get a maximum of 40 volts output, using my obviously, less than capable voltage power supply.I will replace the pyramid with a Variac, and diode bridge, so I can have total voltage control to the rotating magnet's flux strength, which I have now just learned, control how much voltage the coils produce. Duh!
I have never taken apart an AC generator before, leaving them in the relm of voodoo magic, I guess.The main point, one more barrior to doing the flywheel has been dealt with.Now to select an AC motor of the correct size to drive the flywheel.
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On Fri, Mar 16, 2018 at 3:21 PM, Warren Keillor [email protected] [EVGRAY]<[email protected]> wrote:
Hi Doug
I am by passing the regulator which is untrustworthyNow I will energize the rotor with 12 volts dc of the correct polarity.There are two separate coils in the stator, perhaps also a low voltage one to power the rotor with AC which gets rectified at the voltage regulator blockSince that voltage is, at this time, unknown, I'll put separate power to the rotor from the outside 12 volts DC for now.The two coils making up the power coils in the stator have a common grounded end, which at this time, I will float, or isolate, from the chassis, yet connect to each other That should leave three ends of unidentified potential to measure with the multimeter.I will put a belt on it and turn it at a modest speed and see if I find life.Since this Troy-bilt 2.6 kw generator is a 60 hz 120/240 volts, some combination should be twice as many volts as another, and since the hz is unimportant at this stage, this will either provide life or not.If the generator is usable then I will proceed using it to try powering the motor, driving the flywheel, then throw the knife switches, as per rotoverter experiments to see what might happen.It is a pain in the ass to be messing around with this ac generator, but I am learning more about them.I know it has to turn 3600 rpm to get 60 hz. It worked fine in 1991. The last time I used it.Cheers Warren
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On Fri, Mar 16, 2018 at 8:29 AM, [email protected] [EVGRAY]<[email protected]> wrote:
Hi Warren
I think the DC flash blast needs to be a certain polarity to work...maybe that is it if lucky...
ciaoKone
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