Low voltage out of Genset

[Ralph L. Fullenwider]

Alan:

You have gotten some good advice on this. Do not increase the RMS changing
the freq. It sounds like you have corroded connections or weak breakers on
the gen set. Start by checking the voltage at the breakers, the input side
then the out put. If the voltage drop is not found there, check the
connections in the electrical box (should be just inside the gen
compartment in the upper corner). Of course the voltage being read at the
meters does go through shunts and those reporting wire connections could be
corroded as well. With the readings below, your gent set sounds like it is
fine. I do remember 2 occasions, after checking the input side of the
breakers on the gen set, that the voltage was low there and had to replace
the circuit board on one, and the regulator on the other, which took care
of the problem in both cases.

Safe travels,

Ralph and Charolette Fullenwider
Ralph's RV Solutions, Duncan, Oklahoma
http://home.swbell.net/rlf47/index.htm

At 04:38 AM 8/23/2006 +0000, you wrote:
>Ok, here are my findings so far.
>
>1. Engine RPMs - right at 1800 (I bought a vibration tach, as
>suggested.)
>2. Frequency stays right between 59.5 and 60.5 whether under heavy
>load or not.
>
> Leg 1 Leg 2
> ------ ------
>No (very little) load 108v 108v
>Front a/c only 104.5 110
>Both a/c's on 104 101.5
>Rear a/c only 100 91 (a/c compressor is having
>trouble running)
>
>When on shore power I've got right at 120v. On the generator, I'm
>obviously low on voltage all the time, but do these different
>readings tell you guys anything? Do I just need to up the rpms, or
>will that mess up my frequency??
>
>Thanks!
>Alan Johnson
>87FC35
>
>
>