Remote Metering / Data - Logging [RE-wrenches]
Hugh Piggott
hugh at scoraigwind.co.uk
Wed Jul 9 13:32:26 PDT 2008
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>
>Quite understandably, the biggest problems we encounter relate to
>the early demise of the battery banks. But, without good
>monitoring, it becomes a guessing game as to the core reason.
>Generally, the reasons, in order of likelihood are (a) facility
>using more load than agreed to, (b) generator not being run long
>enough on hybrid systems, or something broken on the generator that
>we don't find out about, and (c) faults in the PV / charge
>controller system.
>
>
>
>Our metering will need to allow us to differentiate between these causes.
>
>
If you monitor battery voltage using a very cheap USB logger then you
can identify and observe solar and generator input via voltage
history.
http://www.testequipmentdepot.com/lascar/dataloggers/elusb3.htm
It's very interesting data to look at. And cheap. I suppose it
depends on the size and cost of the system.
--
Hugh Piggott
Scoraig Wind Electric
http://www.scoraigwind.co.uk
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