DR charging oddities [RE-wrenches]

[jay peltz]

Is this a standard buck/boost transformer that you are talking about?  If so a
good idea!

Jay
Peltz Power

info at backwoodssolar.com wrote:

> Right on the ratio. Many automotive battery chargers have the same problem.
> Usually it is caused by the generator having a nearly square wave form,
> missing the peak of the sine wave curve.  Especially brushless generators.
> You can see it on an oscilloscope.
>
> A good cure is the 10% voltage boost transformer from Vermont Solar.  We
> sell them with no bad result due to the boost.  You can use a Todd Transfer
> relay externally so that boosted power only goes to the DR inverter or to
> the automotive type charger and not to the house loads if concerned, but we
> have never encountered any harm done to anything using that transformer.  I
> am not sure if Trace endorses that application, but they do want the problem
> remedied on the generator end.  I have suggested that an added relay in the
> DR that flips in one more winding turn on the low voltage side while
> charging would really cure it. I have tested that in weak automotive
> chargers and it works.
>
> Backwoods Solar Electric Systems www.backwoodssolar.com



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