AC circulator vs. PV driven DC [RE-wrenches]
Windy Dankoff, Dankoff Solar
windy at dankoffsolar.com
Sat Apr 12 18:02:07 PDT 2003
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>DC pumps require precise matching of the amperage voltage curve of the PV
>module curve to the real motor requirements of the DC motor --the reason
>you are having problems is that you do not know how to match THE pv module
>to the DC motor--the march WILL last 15 years PLUS if the pv module is
>not over 16 volts AND the amperage is not over 1,4 amps -- the brushes will
>ride on an air if you over power the 12 volt motor gator tomGlobal
Gator's right about the little high-speed motors like the March pump.
For the big fat slow-speed motor we use on SunCentric, you can
oversize the array all you want.
Just FYI.
Windy
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