Oops, wrong list. Sorry. Kirk On Mon, 2009-05-18 at 08:32 -0700, Kirk Wallace wrote: > I posted a schematic similar to my generator setup. > http://www.wallacecompany.com/machine_shop/Onan_5CCK/Onan_schematic.png > > Mine is a 230 VAC, four wire, single phase. 115 VAC comes off of each > slip ring pair, 180 degrees apart. The commutator and windings act as a > starter motor, then after the engine starts, provides DC to the field > which is the static outer windings, and for starting battery charging. > Starting may provide an initial field for the field windings, but I > believe there is enough residual field in the rotor to get things going. > There is a variable resistor on the DC supply for a field voltage > adjustment, and one for battery charge voltage. As far as AC output > regulation goes, I don't know how it works. There are rotating and > static electric and magnetic fields, which must interact to keep the > voltage constant in relation to RPM. A DC motor's back EMF is like this, > but there are much fewer interacting elements. My plan was to fit an > external regulator if needed. Of course, EMC2 could be used as a > generator controller. > > I am still looking for rewinding materials. So far, I have Sprayon > varnish and a source for armature wire. If anyone has a good source for > Nomex paper, tape or whatever is appropriate for slot lining, please let > me know. > > There is a lot of Onan knowledge gathered here: > http://www.smokstak.com/forum/forumdisplay.php?f=1 >
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