Dave,
The problem occurs when the kWh meter sends data. I would expect any
neighbors' meters on the same transformer to cause trouble. And probably
neighbors that are not on the same transformer too.
Kent Osterberg
Blue Mountain Solar, Inc.
www.bluemountainsolar.com
t: 541-568-4882
On 4/15/2013 1:12 PM, Dave Palumbo wrote:
I'd like to revisit a thread from early February where we were
discussing Enphase microinverters going off line due to utility power
quality issues when "Pinging" of smart meters occur.
I have a system where I was told by Enphase that they applied their
software fix in late March, but in this case it did work in fixing the
problem of the inverters dropping for anywhere from 5 minutes to an
hour a couple of times per day. The drops are not regular and now it
appears that they are not connected to the pinging of the meters on my
customers site as we had the utility change their schedule to only
ping at midnight.
We are still seeing AC Frequency Out of Range errors almost daily on
our M-215 inverters. Sometimes it is for only several inverters and
other times up to the whole array of 32 inverters. On my other Enphase
systems have no problems.
What other issues besides utility pinging of my customers smart meter
could be causing the problem?
Could the pinging of the neighbors meters by the utility off of the
same transformer be affecting the Enphase M-215's? I'm suspicious of
something other than this because the errors occur at random times
that appear unrelated to utility pinging.
Thanks,
Dave
David Palumbo
Independent Power LLC
462 Solar Way Drive
Hyde Park, VT 05655**
*/www.independentpowerllc.com /*
Vermont Solar Partner
25 Years Experience, (802) 888-7194
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