Allan
That is not expected behavior. Which model of SPD are you using?
Ryan
On 8/13/2013 1:08 PM, Allan Sindelar
wrote:
Wrenches,
Very seldom do inverters in off grid systems ever go to sleep
anymore, given the increase in phantom electronic loads and
greater customer expectations. Coupled with lower module prices,
we usually size larger arrays and inverters remain on
continuously. However, we also service and upgrade many existing
systems, and some customers still want their inverters to go into
search mode. They typically either have gotten used to a more
energy frugal lifestyle over many years, or (to their credit)
choose to buck the system and live with a lighter energy and
resource footprint.
Twice in recent months we have added Midnite MNSPD MV surge
arrestors to the AC output of smaller systems and discovered that
the inverters will no longer go into search mode. It doesn't
appear to make any difference where the search watts threshhold is
set. One system used a 24V Outback FX2524T (with current boards
following a nearby lightning strike) and the other used a Magnum
MS2812. In the former case, we defeated the search (against the
customer's preference, as she liked the total silence once her day
was done). In the latter, the customer rejected and we removed the
surge arrestor once it became clear that the inverter wouldn't
sleep.
Has anyone else experienced this? Is there a fix for it? Robin,
can you chime in here (off list if necessary; I'll carefully post
your response)?
Thank you,
Allan
--
Allan Sindelar
[email protected]
NABCEP Certified PV
Installation Professional
NABCEP Certified Technical Sales Professional
New Mexico EE98J Journeyman Electrician
Founder and Chief Technology Officer
Positive Energy, Inc., a Certified B CorporationTM
3209 Richards Lane
Santa Fe, New Mexico 87507
505 424-1112 office 780-2738 cell
www.positiveenergysolar.com
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