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Author Topic: Load bank tweak  (Read 550 times)

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kitestrings

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Load bank tweak
« on: May 05, 2022, 03:20:32 PM »
I finally got around to a minor change with this load box.  I originally had the temp sensor on the bottom.  Admittedly, I didn't consider the effect of convection it was more of what was quick and convenient.  The thermostat is an adjustable snap-disc (90- 120degF).  The crawlspace hovers around ground water temperature most of the year, so when this thing is working not much heat hangs around the base.

Before:


After:
14830-1

I think this will be better, and it was simpler than I'd anticipated....
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SparWeb

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Re: Load bank tweak
« Reply #1 on: May 06, 2022, 09:26:42 PM »
How much current is that snap-disc switching?
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No one believes the theory except the one who developed it. Everyone believes the experiment except the one who ran it.
System spec: 135w BP multicrystalline panels, Xantrex C40, DIY 10ft (3m) diameter wind turbine, Tri-Star TS60, 800AH x 24V AGM Battery, Xantrex SW4024
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kitestrings

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Re: Load bank tweak
« Reply #2 on: May 07, 2022, 08:57:19 AM »
It's just the fan Spar, .1A @48V.  I believe it is rated for 25A @125 VAC.  The elements are switching (off Aux2, PWM) through a 75A Teledyne, 3-phase SS relay.
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SparWeb

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Re: Load bank tweak
« Reply #3 on: May 07, 2022, 09:45:50 PM »
Whew!

Nice build!
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No one believes the theory except the one who developed it. Everyone believes the experiment except the one who ran it.
System spec: 135w BP multicrystalline panels, Xantrex C40, DIY 10ft (3m) diameter wind turbine, Tri-Star TS60, 800AH x 24V AGM Battery, Xantrex SW4024
www.sparweb.ca
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