Howie,
We've installed some Pika systems, and been impressed with the quality and
service. (It is easy to get sales, shipping, engineers on the phone).
Relatively new company, but with ties back to southwest windpower days. I'm
guessing you found them when looking at possible Tesla or other GT
Has anyone have any experience or even knowledge of the Pika products?
http://www.pika-energy.com/
Looks like a direct competitor to SolarEdge. Is it actually in the field or in
production?
Thanks,Howie
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William, Ray,
I asked Midnite about using the Aux circuit for control for ground or arc
faults. They said this will (should) be added on the next firmware update. This
means if an arc fault is detected, the Classic will shut down AND conductors
leaving the array would be de-energized by switch
Thanks Glenn, that’s the one – there are also some UL videos showing the tests
and the results, sobering yet valuable information.
Under the NY-Sun program, we are both training and listening to firefighters in
the attempt to provide practical information for working around PV systems and
ultim
Answered my own question, found the pinhole opening on the front of the
inverter to start EQ.
Ron
> On Sep 24, 2015, at 3:13 PM, RM You wrote:
>
> Hi guys, I recently took a Xantrex TR series inverter on trade from a
> customer who is upgrading. According to the inverter spec sheet the invert
I'm not sure I understand this issue. The Morningstar 600V comes with a
disconnect built in, so everything downstream is isolated. Upstream, in the
rare case you need to replace the Morningstar, turn it off, pop out the
fuses in the combiner and work away. If you have a single string
application, u
http://websites.firecompanies.com/njiaai/files/2014/04/PV-FF_SafetyFinalReport.pdf
I think this is the report Lloyd referred to.
I used it this spring during a firefighter training class I taught. It has a
lot of interesting information.
-Glenn
From: RE-wrenches [mailto:re-wrenches
Hi guys, I recently took a Xantrex TR series inverter on trade from a customer
who is upgrading. According to the inverter spec sheet the inverter is capable
of equalizing the batteries but I can’t figure out how. The manual says
absolutely nothing about how to invoke equalizing, just shows the
Interesting. I'd like to get a hold of those test results.
It is not always practical, but I have never had an issue using opaque
black-out type tarps (of course - testing for voltage is a critical safety
step). The flimsy blue stuff will definitely not work. At one time I had a
sports field cover
Ray,
UL508 for sure but look here: http://gigavac.com/catalog/pp/hx.html
Larry
On Sep 24, 2015, at 11:03 AM, Ray Walters wrote:
…. Is the Gigavac UL listed?
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760
__
Wrenches,
UL has done testing on various materials for use as array covers, and lists
their results. While perhaps not too practical as a means of shutting down a
working system, this can be one of firefighters’ only effective methods when a
fire has occurred and has damaged modules until PV pr
Brian:
I agree 100%. Handling a tarp on a roof is impractical, ineffective and
unreliable. Wind and slope are just two factors that increase danger and reduce
reliability.
William
> On Sep 24, 2015, at 9:12 AM, Brian Mehalic wrote:
>
> I disagree about tarps. We've tested fully covered arr
The other option is Midnite Solar's remote controlled breakers or
combiner boxes. They make up to a 250 amp breaker, but I found on large
battery systems that we need some thing larger. Colorado is now
requiring Rapid Disconnect for the batteries as well, which is NOT the
original intent of th
William and Wrenches,
I have pondered situations like this one and wonder the following: If a high
voltage DC solenoid were placed at the PV array and the coil was controlled by
an arc fault detector along with a means of manually disconnecting, would that
not work to satisfy shut down require
I disagree about tarps. We've tested fully covered arrays (and small ones at
that) and still had what would be considered lethal levels of current and
voltage, even when using heavy, reflective tarps. And it can be very difficult
to ensure they stay in place, plus it's impractical for larger arr
"In this scenario, there is no safe way to replace either of the two
Morningstar controllers."
The BEST rooftop disconnect remains... a big thick tarp. Not totally
practical in an emergency situation, but it is pretty fail safe.
Unfortunately for emergency responders, that does not take care of
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