Don,
Seems the benefit of using % charge would go out the window if your
batteries were sulphatedjust when you would need the voltage based/temp
comp logic the most. No experience with your proposal though.
Bill
Feather River Solar Electric
- Original Message -
From:
swingjun...@gmail.com wrote:
Thanks to all who responded,
The article Marco references, is the one referenced in the tinyurl in
my original post. I did not find anything of significance in the
previous Solar Pro issues. Based on the responses it seems there is no
good data out there to answer
Thanks to all who responded,
The article Marco references, is the one referenced in the tinyurl in my
original post. I did not find anything of significance in the previous
Solar Pro issues. Based on the responses it seems there is no good data out
there to answer the question posted. This
Hi Ryan,
We have a lot of XW's installed and not one of them is what I would
call loud. I would call the SW and SW Plus series loud. If it is simply
that he is sensitive to noise I would recommend having a dead air space
between whatever you layer the wall with. I built a recording studio
for so
I have a customer that we installed a Xantrex XW4548 on a Midnite
Epanel. He has 3kw of pv and 400ah of lead acid battery's. The issue is
he feels the inverter is to noisy. The inverter is hung in a garage on a
plywood wall that is 2 by 6 constructed with fiberglass and then drywall
on the hous
Marco,
Three components of power delivered by the utility company: Watts,
volt-amps-reactive (VAR), and apparent power or volt-amps (VA). Power
factor is the ratio of the watts to the volt-amps. PF = Watts/VA.
To see how this works: draw a right triangle with 8 kW as the
horizontal leg, 6 k
Hi Bill,
I wanted to follow up on your results finding a ground fault with a lower
resolution megger.
Do you think the .1MOhm meters will work in field applications?
Do you know of any .001MOhm meters like the old 1520?
I have taken a position with a cadtel mfgr as their field applicati
Great format for an integrator and its staff. Thanks for sharing, Mike.
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
david.brear...@solarprofessional.com
On 1/7/10 1:26 PM, "Michael Kelly" wrote:
> Drake,
>
> I did an analysis for optimum conditio
According to an article, written by a utility engineer on O'ahu, PF can be
worsened at the site where a substantial PV system is located.
If there is a poor or wavering PF due to an abundance of inductive loads at
a particular site, having a large inverter, in relation to the overall power
consump
We worked on dozens of commercial PV systems in Southern California Edison
(SCE), Los Angeles Department of Water & Power (LADWP), and San Diego Gas &
Electric (SDG&E) territories. We installed Xantrex, SMA, and SatCon
inverters and measured power factor on both the grid and the inverters. In
e
Input appreciated.
How well does the Pentametric work as a generator control. The spec
sheet states a control relay based on % charged is available. Any
experience using the Pentamatic as a gen start control. Does this
yield better battery control than voltage based approach?
Thanks for any
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