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Re: wiring a generator
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Posted by Alberta Mike on February 27, 2004 at 18:10:06 from (209.47.89.105):
In Reply to: wiring a generator posted by jason on February 27, 2004 at 13:09:45:
Well, you could run the field circuit directly to ground. That would be the equivalent of the 2nd position on a 3-position light switch where things are in "full charge" mode (when the battery needs charging). Or, you could run it through a 3-ohm ceramic resistor and then to ground which would be the same as the "in" or first position on those old light switches. This would be the "controlled output" generator control in the 3-position switch (position #1). The third position of those switches was the same as the second (full-charge) only the lights were switched on. I've often thought if you could get a 3-terminal switch from an electrical supply house with one "in" terminal and two "out" terminals you'd have it beat. One of the out terminals would go through a 3 ohm resistor to ground while the other out terminal would go directly to ground. This would give you a 2-position switch (instead of a 3-position switch). You could still hook up lights separately, only they wouldn't tie in automatically with the 2-position generator control switch you have made up but if your lights were on, you'd have your 2-position switch in the circuit which funnels the field circuit directly to ground (full charge). By the way, basic amperage charge rate is done at the generator itself by adjusting the position of the 3rd brush at the generator itself. There is a good article on 3rd brush generators in the articles section under research and info in the left hand margin here.
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