I'm looking to buy a tri-fuel generator. The one I'm looking at not only produces 110V but also 12V for charging a bank of batteries. How does it do this? Does it have two alternators, one for each voltage? If I'm only using the generator to charge my 12V bank of batteries, is it not the most efficient option because it's also doing 110V at the same time?
Thanks!
2007-09-29 17:17:02 · 4 answers · asked by busboy 2 in Science & Mathematics ➔ Engineering
I'm afraid neither of the above answers is correct....
I have a circuit diagram of a Generac 3500XL in-front of me, and it delivers (even) 3 kinds of voltages: 110VAC, 110 - 0 - 110 (=220VAC), and 12VDC.
These are all "created" by having separate windings on one-and-the-same stator assembly. The 12VAC winding goes - of course - through a rectifier to make it into DC.....
2007-09-30 03:14:29 · answer #1 · answered by Marianna 6 · 0⤊ 0⤋
What counts is not the voltage produced, but the energy consumed by the load. Yes, there are probably 2 generators on the same shaft. One for 12V and one for 110V. But only the 12V one will be rectified to supply 12V DC to charge your batteries.
Doug
2007-09-29 17:38:08 · answer #2 · answered by doug_donaghue 7 · 0⤊ 0⤋
An option much more practical than two alternators is having a step down transformer and a rectifier with/without some closed loop control to get 12V which would most probably the case for your system.
2007-09-29 17:33:40 · answer #3 · answered by Saurabh T 2 · 0⤊ 0⤋
Regulation of the generator voltage is done by putting a variable resistance in series with the field coil, thus reducing it's magnetic field..if you can't do that use 11 diodes in series ( amperage as necessary) to drop 7.7 volts ( 0.7 volt pre diode) 20.0 - 7.7 = 12.3 v.
2016-05-17 07:05:03 · answer #4 · answered by Anonymous · 0⤊ 0⤋