On Sun, 20 Oct 2019 16:28:08 -0400, Ralph Mowery
wrote:

In article ,
says...

The electronic regulators are probably on the larger generators and
newer ones. If you call 10 or 20 years newer.


I had on OLD Onan genset - so old it did not have a recoil starter and
was an 1800RPM single - and the voltage barely changed from 1200 to
2000 RPM, but the frequency sure did. The governor was mis-adjusted
when I got it and it over corrected seriously - it would surge like
crazy under load. I finally got the linkage corrected and it was
pretty much rock steady under load after it was warmed up. Voltage was
steady untill loaded beyond it's maximum current rating - where the
engine would tend to bog down and stall. When the generatoe went into
a surge the light intensity did change ernough that you could see it -
but not seriously



My Coleman 5 kw I bought about 1999 does not have a any electronic
regulation. It is just controled by the govenor. I did set the speed
under a portable heater of about 1500 watts and 120 volts for a load.
The speed control changd both the frequency and voltage. I used an old
viberating reed frequency meter and a true RMS Fluke meter to do the
adjusting.

My newer dual fuel I bought a few months back does have the electronic
regulator module. It was very close, so I did not look for adjustemnts
on it.

My B&S 5 kw generator does not show any electronic regulator either on
the wiring diagram. It is about 10 years old. Hate to say it, but I
have not even ran it. I bought it when I thought the first one had
engine problems, but turned out it did not .



That sounds like the Briggs 5.5 I have but there must be some kind of
regulator because the voltage is steady from no load to full load. The
You Tube says it is inside the generator head. I just have not had
time to look. I really don't want to screw with it until the Gulf gets
below 80f. (AKA 26.5 up in the frozen north)

I think that engine must be somewhat oversized too because I do not
see any fall off in performance between gasoline and propane. It will
get up to a high enough current to trip the breaker on either one
(~25a) and the voltage is steady at 115/230. That is 5.7kva