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Re: Re: low mod 12v conversion
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Posted by buickanddeere on February 25, 2004 at 06:07:20 from (192.75.48.2):
In Reply to: Re: low mod 12v conversion posted by Bob M on February 25, 2004 at 05:31:33:
Wrong on the generator winding heating effect. heat is "power" which is I2R or voltage drop across the windings x amps. That's why we transmit power cross country at 500,000V instead of 4160V. Also why electrical equipment is better wired in at 240/480/600 instead of 120 or 208.
The identical generator windings will heat the same at 20 amp load no matter if the output voltage is 7.2,14.4 or 28.8V .
Most 6V generator cores are identical to the 12V units. A wee bit more rpm is all that’s required.
The main problems with generators not charging are the following.
#1 A cheap owner who shuts the machine off every time for the 1 minute off the seat to hook a wagon or open a gate.
#2 idling around and never revving up the engine.
#3 A worn pulley will not drive the generator up to speed even if the owner splurges on a new belt.
#4 Most machines have never had the regulator set up with a voltmeter, just a guess by looking at the ammeter to see if it's charging "much".
Modern batteries need 7.2V,14.4 or 28.8V measured at the posts at full rated rpm and all the lights etc turned on.
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