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Low voltage out of Genset
08-22-2006, 04:37
Post: #3
Low voltage out of Genset
I'd suggest using a Hertz meter as well. You don't want to move the
Hz too far from 60 as it can adversely affect motors, etc.

Pete Masterson
aeonix1@...
'95 Bluebird Wanderlodge WBDA 4203
El Sobrante, CA




On Aug 22, 2006, at 8:14 AM, Curt Sprenger wrote:

> I'm not an expert but found this on the Internet. For an
> oscillating or
> varying current, frequency is the number of complete cycles per second
> in alternating current direction. The standard unit of frequency is
> the
> hertz, abbreviated Hz. If a current completes one cycle per second,
> then
> the frequency is 1 Hz; 60 cycles per second equals 60 Hz (the standard
> alternating-current utility frequency in the United States).
>
> I recall the Onan guy adjusting rpms on our previous gen. set to
> get the
> frequency to 60 and to increase voltage.
>
> Sounds to me you are on the right track. If you can, turn up the rpms
> and watch for voltage increase. Good luck. Please keep us posted.
>
> Curt Sprenger 1987 PT38, Anaheim Hills, Calif.
>
>
>
> Alan wrote:
>
>> My 87FC35 has a 8.0 kW genset. I am getting low voltage out of it
>> (around 95 volts). On my last onan genset (77 GMC - carbed gas),
>> this was a common problem and was simply corrected by increasing
>> RPMs. (If this is the fix, how do I adjust idle speed? This fuel
>> injection isn't as intuitive for me as I've been a carburetor guy.)
>>
>> I found an installation manual for the genset and it says to adjust
>> some "taps" on a transformer regulator. It also says "output
>> frequency is determined by engine speed and normally does not
>> require adjustment." I'm not exactly sure what it means by "output
>> frequency". Is that voltage??
>>
>> Is this problem more complicated than adjusting the RPMs? Maybe I
>> don't have one of the Onan manuals..?? I have a parts manual and an
>> installation manual.
>>
>> I have searched the forums and did not find a post that seemed to
>> address my situation. Let me know if I missed it.
>>
>> Thanks in advance,
>> Alan Johnson
>> 87FC35
>>
>>
>
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>
> Yahoo! Groups Links
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Messages In This Thread
Low voltage out of Genset - Alan - 08-21-2006, 16:18
Low voltage out of Genset - Curt Sprenger - 08-22-2006, 03:14
Low voltage out of Genset - Pete Masterson - 08-22-2006 04:37
Low voltage out of Genset - Wilhelmus Schreurs - 08-22-2006, 05:02
Low voltage out of Genset - one_dusty_hoot - 08-22-2006, 06:47
Low voltage out of Genset - one_dusty_hoot - 08-22-2006, 07:06
Low voltage out of Genset - John Suter - 08-22-2006, 09:58
Low voltage out of Genset - Bruce Morris - 08-22-2006, 15:28
Low voltage out of Genset - one_dusty_hoot - 08-22-2006, 15:39
Low voltage out of Genset - Alan - 08-22-2006, 16:38
Low voltage out of Genset - John Suter - 08-22-2006, 23:20
Low voltage out of Genset - one_dusty_hoot - 08-23-2006, 03:56
Low voltage out of Genset - pattypape - 08-23-2006, 05:18
Low voltage out of Genset - Ralph L. Fullenwider - 08-23-2006, 05:34
Low voltage out of Genset - The Squires - 08-23-2006, 05:36
Low voltage out of Genset - Alan Johnson - 08-23-2006, 06:34
Low voltage out of Genset - John Suter - 08-23-2006, 06:42
Low voltage out of Genset - Stephen Birtles - 08-23-2006, 06:52
Low voltage out of Genset - erniecarpet@... - 08-23-2006, 08:06
Low voltage out of Genset - Alan Johnson - 08-23-2006, 08:31
Low voltage out of Genset - one_dusty_hoot - 08-23-2006, 10:30
Low voltage out of Genset - one_dusty_hoot - 08-23-2006, 12:31
Low voltage out of Genset - Gardner Yeaw - 08-23-2006, 12:37
Low voltage out of Genset - Wilhelmus Schreurs - 08-23-2006, 17:58
Low voltage out of Genset - John Suter - 08-24-2006, 03:58
Low voltage out of Genset - Alan Johnson - 08-24-2006, 16:14



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