Jay,
My logic about raising the end amps is that it would shorten the
amount of time spent at gassing voltage in absorption by allowing
the controller to shift to float a bit sooner. It's an idea, and I'm
not sure whether it's a good one -- a compromise to reduce the time
We had the fortunate luck of having lightning strikes a two Schuco ground mount
arrays one with Schuco 180's the other one was with Schuco 230's. In both cases
there were damaged diodes on a few there was visable damage to the junction box
due to heat. For the most part it required testing of al
Hi Allan;
This is an interesting thread, as all of us ( I think) have gone heavier
on the solar arrays and lighter on the battery banks based on
economics. I too have noticed higher gassing and more water
consumption, and I too have adjusted set points down slightly to account
for this. I th
Hey Jay,
From what I've heard form battery manus, the C rates likely even in a
well PV-ed system still will not produce C-rates high enough to approach a high
or "longevity reducing" internal battery temp, assuming a typical bulk, absorb,
float cycle. Of course, battery environmental l
Bill; The Whizbang can mount on the main shunt, and has an included
mounting option that lets you piggyback the wires from another amp-hourt
meter on it. I have mine with a magnum ME-BMK piggybacked on it.
Dan Fink
Buckville Energy
IREC Certified Instructor™ for:
~ PV Installation Professional
~ S
Hey guys…
I’ve attached a white paper link that I’ve been working on(below)… This white
paper has to do with Rolls Batteries and starting set points… The WP is
prerelease and frankly I’m done looking at it as I need to move on to the next.
I don’t think that I’ll ever be accused of being a wr
In addition, when someone leaves the system for long periods of time,
the ending amps can help BUT that is
not the same as giving them a good de-sulfating Absorb cycle once in a
while.
This is where it is nice to give them a good Absorb for some hours
without the ending amps but only
every s
Hi Bill;
If the battery is in an insulated box indoors, it definitely can over
heat. Also if ambient temps get into the 90s, the additional heat from
charging can push the battery into the danger zone. In hot desert or
tropical climates, it may actually be difficult to keep the battery
belo
Wayne, et al:
I also recommend that you perform a Megger test on the DC Source Circuit
conductors before recommissioning the system. There could be wiring
faults caused by the lightning strike that may go undetected.
It's also possible that an undetected ground fault might have occurred
duri
On 5/22/2015 12:56 PM, Ray Walters wrote:
Hi Bill;
If the battery is in an insulated box indoors, it definitely can over
heat. Also if ambient temps get into the 90s, the additional heat
from charging can push the battery into the danger zone. In hot
desert or tropical climates, it may actu
I recently installed a Solaredge 7600 inverter and two feet away from it
installed a GE 210 solar kWh utility grade meter. Over the course of three
months the kWh production measured by the inverter is more than 200 kWh
greater then the production showing on the GE meter. I changed out the GE
mete
I thought I'd post some info on Battery Temp from a few manus:
HUP Solar One: do not exceed 105 F
Full River AGMs: max recommended operating temp 104F
and from Trojan: for every 10C increase in temperature the reaction
rate doubles. Thus, a month of operation at 35C is equivalent to 2
months a
Hi:
The difference is in the accuracy of revenue grade versus inverter KWh
meters. Revenue grade is typically much more accurate.
Beyond that, even if the accuracy of both was really good at lets say +/-
0.5%, you could still get a 1% overall difference in readings as one could
be +0.5% and o
Hopefully there tech department can shed some light on this for you, however,
it would certainly be to SolarEdge's benefit to appear to be producing more
power than it really is, well, unless, H ..
Bill
- Original Message -
From: jarmo.venalai...@schneider-electric.com
This is good stuff, enlightening...but begs another small? detail that has
obvious big ramifications. Where o where does the BTS get placed to best read
the actual "temperature of the battery"? It's too big to fit on many terminals
especially once cabled, it's certainly not very accurate when
Hi Ray,
Cold isn't a problem. It reduces capacity and yes they could freeze, but
it doesn't shorten life ( I mean besides the freezing part) in fact cooler
batteries last longer.
But hot is a problem. Those max temps are not the same thing as reduced
life from running at a hotter temperature.
A
agreed.
Again, maybe Steve has an view of the builder, but having it on the post is
pretty close.
Maybe there is a white paper on temp sensor locations pros/cons?
jay
On Fri, May 22, 2015 at 5:08 PM, frenergy wrote:
> This is good stuff, enlightening...but begs another small? detail that
On 5/22/2015 6:43 PM, jay peltz wrote:
agreed.
Again, maybe Steve has an view of the builder, but having it on the
post is pretty close.
If it's the typical flat type of BTS, wedged right between two batteries
will give a good
average temperature of the two of them.
boB
Maybe there
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