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Discussion Starter #1
I have a 2009 model Aurora Diesel Portable Generator with a brushless generator. The problem I am having is it puts out electricity at 49 to 54 HZ. I have tried to raise the diesel rpms but have had no luck. The company advised I replace the capaciter which I have, No change. Can anyone recomend anything or in the area of central Kentucky, someone I can get who can work on this generator for me ? This is agravating ! it has 15.1 hours on it. I am not sure that it ever ran at 60 Hertz.
 

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Frequency should be controlled by the speed of the diesel. Normal RPM of diesel generator is 1800RPM.
Is the loaded or unloaded frequency. Adding some load could stabilize it.
 

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Discussion Starter #3
Generator problems

Hello, I have a 3600 rpm portable generator (Sorry I did not mention that). The rpm range is 3420. I do not know how to raise the rpm's over what the govenor base movement gives you. I tried removing shims from the feul pump but wound up with black smoke so I put it back (It had three shims).
 

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If the generator's running at 3420 rpm, the output should be 57 Hz, not 49-54 Hz. That's usually close enough for any load except maybe electronics.
 

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Discussion Starter #6
Generator RPM

Hello md2lgy, The accuracy of the equipment I was using might be the problem with that number, I got a range and just showed the average. I am just trying to find a way to raise the rpm.
 

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Gotcha. I was a generator mechanic in the military for a lot of years, and even the smallest (2KW) units had some form of manual speed adjustment. But a lot of "civilian" units (perhaps most) do not. I have a 3KW RV generator, and it has no adjustable speed control. What you really need is a manual for your unit.
 

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Do you really need 60Hz? Most electronics will tolerate 50Hz just fine.... but clocks will run slower.

I say don't fuss with it too much unless you really, really need 60Hz.
 

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Discussion Starter #9
60 hz

Hello, In my situation, I noticed I had a problem during a 6 hour power outage. We first noticed the microwave was not warming up nrmal items. I went to the basement and noticed the flourescent fixture light was having trouble coming on.
 
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