Solar attic fans [RE-wrenches]

[hugh piggott]

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At 11:46 pm -0400 1/5/01, John Blittersdorf, Cent. VT Solar & Wind wrote:
>I am involved in a system with dual SW4048's
>powered by a 10kw Bergey and 40 Trojan L16's feeding AC to another building
>1200' away with a SW4024 and  16 T105's with 16  60 watt panels.  We are
>trying to limit the power flowing from the larger battery bank...  I
>was considering running the AC into the AC2 generator input and wonder if the
>generator setup mode will open and close the input relay as it would with the
>generator even though the power will be constantly available.

Use an external contactor (relay) on the generator start relay, to 
close the circuit onto AC2.  Another idea would be to use the voltage 
relays on the SW4048 to control the link.  When the big bergey 
battery voltage is above (say) 54 volts, then close the circuit to 
charge the solar batteries with a contactor at that end.
-- 
Hugh

down in Birmingham for a seminar about alternators.
http://www.scoraigwind.co.uk

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