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Help with generator problem, AC voltage
05-10-2005, 04:40
Post: #11
Help with generator problem, AC voltage
Its very nice to have a frequency meter, but an accurate tach should
also tell you when the frequency is correct. (See Stephen's notes
below).

If the voltage is wrong when the RPM and frequency are correct, then
you are looking for problem that is not related to engine speed. (See
notes from Jeff and others about the transfer switch, neutral, and
regulator).

If you start working with the mechanical governor, remember that the
settings are not correct until the engine speed stays constant from
no load to full load.

Bob Griesel '84 FC31 WLII WA

--- In WanderlodgeForum@yahoogroups.com, "Stephen Birtles"
wrote:
> 1800rpm = 60 cycles on four pole Generator
> 3600rpm =60 cylyes on 2 pole generator
> any more or less you risk major damage
> Cape0001 77fc35
>
>
> --- In WanderlodgeForum@yahoogroups.com, Byrne Lobdell
> wrote:
> > I would be very careful adjusting the mechanical Governor to get
the
> voltage up. The mechanical adjustment only changes the RPM of
engine
> which in turns changes the frequency of the output voltage. Too high
> or too low frequency can damage any non resistive load. (Inverters,
> TV, Battery Chargers, Microwave, etc.) I am not sure of the Voltage
> Regulator you have but most have a way to set voltage. If no voltage
> adjustment is on regulator you may need to replace regulator. If
you
> have done any mechanical adjustment to the engine governor you need
to
> get a good frequency meter and be sure the frequency is set at 60
cycles.
> > Byrne 7735FC
> >
> > "Hovda, Craig" wrote:
> > I had low voltage on my 90WL40 and I adjusted the idle and it
brought up
> > the voltage to the proper level.
> >
> >
> >
> > Craig
> >
> > 40WL
> >
> > Bigfork Mt.
> >
> >
> >
> > ________________________________
> >
> > From: WanderlodgeForum@yahoogroups.com
> > [mailto:WanderlodgeForum@yahoogroups.com] On Behalf Of Jeff Miller
> > Sent: Friday, May 06, 2005 8:26 PM
> > To: WanderlodgeForum@yahoogroups.com
> > Subject: [WanderlodgeForum] Re: Help with generator problem, AC
voltage
> >
> >
> >
> > You have an open neutral somewhere between the genset and load
center.
> > Try cycling the transfer switch first.
> >
> > - Jeff Miller
> > http://www.wanderlodge.net
> > http://www.millercoachworks.com
> >
> >
> > --- In WanderlodgeForum@yahoogroups.com, "awojteczko"
wrote:
> > > Hello,
> > >
> > > I wonder if I can get some help with my generator problem?
> > > The generator runs well but my AC voltages are 112 and 147
volts ac
> > on
> > > legs one and two. When I plug in a vacuum cleaner it will
barely turn
> > > the motor. If I turn the hot water heater on the relay under
the sink
> > > chatters like crazy. Could this be a brush problem in the
generator?
> > > If anyone has had a similar problem and could point me in the
right
> > > direction it would be very much appreciated.
> > >
> > > Thanks,
> > > Andy
> > > 88WB40
> > > Caledon East, Ontario, Canada
> >
> >
> >
> >
> >
> > ________________________________
> >
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