*** SPAM *** RE: Outback FX voltage fun [RE-wrenches]

Hugh Piggott hugh at scoraigwind.co.uk
Thu Sep 7 23:35:43 PDT 2006


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thanks Chris,

>   Effectively - The OutBack charger is sending the power
>from the generator to the battery - but since the battery is so "stiff"
>some of the energy gets reflected back at the generator.  Often the
>response time of the generator's voltage regulator is fairly slow - so
>the AC output voltage of the generator jumps up since there is nowhere
>for the power to flow.

I guess this is an inductive spike due to suddenly switching off the current.
>
>
>The two solutions I have used with issues like this on OutBack and other
>inverters is to add some HV motor run capacitors (20 to 50 mF) across
>the AC output of the generator itself or to ensure that there is a
>resistive load on the generator when the charger is running.

OK thanks I'll try a 20 uF cap next time and I will put a water 
heater on as well.  It may be a while before I get around to it - 
depends on the wind.

All the best,

-- 
Hugh

Scoraig Wind Electric
http://www.scoraigwind.co.uk/


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