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Author Topic: Multi Battery Monitor, LVD, Display & Data Storage.  (Read 10650 times)
clockmanFR
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« Reply #30 on: January 09, 2012, 07:12:28 PM »

andy, regards your comments,
What happens if your batt string gets shorted out?    thousands of amps!  cable melting!  fire!  batts knackered

Here is a pic of Hugh Piggotts "A Wind Turbine Recipe Book", the page of the power management system he recommends.
Its the same as mine, if its good enough for Hugh its brilliant for me.



* P1090068a.JPG (110.67 KB, 323x430 - viewed 302 times.)
« Last Edit: January 09, 2012, 07:14:32 PM by clockmanFR » Logged

Everything is possible, just give me TIME.
Andy the Inverter Man
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« Reply #31 on: January 14, 2012, 10:55:22 AM »

andy, regards your comments,
What happens if your batt string gets shorted out?    thousands of amps!  cable melting!  fire!  batts knackered

Here is a pic of Hugh Piggotts "A Wind Turbine Recipe Book", the page of the power management system he recommends.
Its the same as mine, if its good enough for Hugh its brilliant for me.

Just having a quick look at the above jpg of the batteries, etc.
I would definitely put a fuse between each pair of batts for the following 2 reasons.
1) Imagine you have 2 batts in series and the batts are side by side, so the +ve and -ve terminals are just a few inches apart.  Now what happens if something like a spanner is dropped across them.  None of the fuses in the original diagram are going to blow.  The cable will get hot and might melt depending on Ah of batts and AWG of cable.  May well damage your batts.
2) If the +ve and -ve cables some how get shorted together.  Perhaps the cables get trapped and the insulation cut.  Again no fuse protecting the batts in the original diagram.

Also I've never seen a fuse used in conjunction with a digital volt meter!
And the ammeter should have an internal fuse making the external one redundant.
I'd keep the inverter and load controller fuses.  Though they both should have internal fuses, so unlikely to need external fuses.

Regards
Andy the UPS, Inverter & Battery Man
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