Precautions for long run 400 VDC cabling?
RussellMc email (remove spam text)
On 5 September 2017 at 14:01, James Cameron <laptop.org> wrote: quozl
> Some specifications have been filled in, and a quotation received from
> my designer. I'm pleased with it.
Sounds very nice.
More questions will happen, but a few to start.
- I note you are proposing "true" Lithium Ion cells as opposed to the
LiFePO4 that you mentioned previously.
Why this choice? (Cost/lifetime/capacity/ planned use, ...)
What is the cycle life at what design DOD% and what Vmax do they use on the
cells to get rated lifetimes.
(Cell spec says 3.0V-4.2V full range which is = usual).
- How are the PV panel cables fastened to the system? [[Say what? :-) ]]
*- â€‹Comment only: *
I note you correctly quote Isc and Voc
So combined voltages and current you quote are Vmax with no load and I with
system shorted at panels
Very impressive 18.3% panel efficiency. Nicely up on what was typical even
a few years back.
(With 18.6% from very top offering).
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