I have a newer (today!) Schematic attached.
ryan
On 11/18/2011 9:03 AM, Bill Prince wrote:
Really simple.
All our solar sites are standalone. Where they are located is too far
from the grid to make it practical in the first place. So there is no
connection to the grid at all.
That said. If you also had the grid available, you would want the
connection to the grid to disconnect your solar charger.
It does not matter if your solar is disconnected or not. Your charge
controller will simply not allow current in from the solar when the
batteries are full.
We find this happens when I do mid-winter maintenance. I run the genset
while I am there to power my shelter lights/laptop and radio. (I tell
you, all I am missing is the beer cooler in the summer!)
After I leave the batteries are generally topped off and the charge
controller simply limits the incoming current from the PV Panels.
ryan
If you run the equipment directly off the batteries, it would not
matter how they are getting charged.
bp
On 11/18/2011 7:43 AM, Terri Kelley wrote:
Basically a two part question I guess. In looking at solar, I want
the hardware to stay up during the transfer of power from the grid to
the batteries and back again. I assume that the momentary switch will
drop the power enough to cause a reboot or the boards to hang up
which would mean a truck to roll to the tower. I want to avoid that.
So those of you who do solar, how do you deal with that switch over?
I have talked to a few solar companies and so far they don't have a
clue other than sizing up the battery bank to operate an APC with the
mikrotik and other equipment on that. Since the APC draws a whole lot
more than all the network hardware this really raises the cost.
Thanks,
Terri Kelley
Network Engineer
Farm to Market Broadband
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