[Milsurplus] Question...

[Richard]

Before doing anything, connect a transformer and see what happens.  
Transformers are pretty tolerant of waveform, as long as there are no 
big spikes.  I've had several generators, waveform was close enough to 
sinusoidal and they worked fine.  Also an inverter with "modified sine 
wave" which was square waves with rounded edges, which also worked fine.

Richard, AA1P

On 10/31/20 11:24 PM, Kenneth G. Gordon wrote:
> At this point, I don't know where else to post this, so here goes:
>
> I have a "small emergency generator", 7500 watts, brand new.
>
> From my reading, I find that the output waveform is very "dirty" as it 
> is some sort of "stepped" square-wave. I have not yet looked at the 
> wave-form with an oscilloscope, but I am not expecting it to be very 
> pretty.
>
> My old military generators output a nearly pure sine wave, but these 
> modern beasts don't.
>
> SO....I have two heavy (about 70 lbs each) 115-115 volt isolation 
> transformers. good for at least 15 amps input/output each.
>
> I propose to "tune" them to 60 Hz by connecting capacitors in such a 
> way as to make them into 60 Hz tuned circuits with the idea that doing 
> so should "round off" the waveforms and eliminate the harmonics.
>
> What does the collective wisdom think of this idea? Has anyone tried 
> this? What was your result?
>
> Ken W7EKB
>
>
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