Hi Bill,
I’m curious where you source your bussing and/or especially the “bridge”
pieces?
Thanks,
Amos
Amos Post
Integrity Energy
W 802.763.7023
C 802.291.2188
ienergyVT.com <http://www.ienergyvt.com/>
Facebook <https://www.facebook.com/integrityenergyllp?ref=hl>
> On Sep 22, 2023, at 7:45 PM, Jay via RE-wrenches
> <[email protected]> wrote:
>
> Hi Bill
>
> Looks good to me!
>
> I like the idea of all the copper/connections behind a plexiglass dead front.
> Makes a lot of sense and seems safe.
> I’m wondering what your inspectors say about it or how you convince them?
>
> It’s definitely got me thinking about doing a job I have in mind with buss
> bars and plexi dead front vs 4/0 cable.
>
> Jay
>
>> On Sep 21, 2023, at 9:25 PM, frenergy via RE-wrenches
>> <[email protected]
>> <mailto:[email protected]>> wrote:
>>
>> Jay,
>>
>> I sent a diagram of my proposed arrangement and bus sizes to
>> SimpliPhi prior to installation, which they approved. The buses (copper
>> 11000) running across the terminals are 1 1/2" X 3/16", they have a rating
>> of 480 amps. The "bridge" buses are 2" X 3/16" with a rating of 610 amps.
>> The greatest possible charge-discharge on this pack will be ~327 amps which
>> is only 16 amps per battery. Typically the max supply is 11.5 amps, loads
>> are less (1, 8048 Radian). The inverter cables are pairs ( +& -) of 4/0.
>> Picture attached.
>>
>> I'm never going to reach the 30 degree C. rise in temp with
>> these amperages. The reasoning was the amps moving to each battery is so
>> small that even though the batteries at the ends of the buses have more bus
>> to move through, they are so over-sized that there would be a negligible
>> difference in voltage, small enough for the BMS to handle.
>>
>> I guess the answer to your question is send your proposal to the
>> battery manufacturer, there are charts all over the internet for bus
>> ampacities. The final touch on the way for this installation is a full sheet
>> of plexiglass mounted on the front of the pack with multiple stand-offs.
>> BTW, the structural is #1, 4 X 6" doug fir, its a 76 Kwhr pack to 100% DOD.
>> We do a lot of car charging around here.
>>
>> Bill
>>
>> Feather River Solar Electric
>> Bill Battagin, Owner
>> 4291 Nelson St.(shipping)
>> 5575 Genesee Rd. (USPS, UPS)
>> Taylorsville, CA 95983
>> 530.284.1925 Office/ 530.258.1641 Cell
>> CA Lic 874049
>> Solar powered since 1982
>> Home of the Sunny side up
>>
>>
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