An IR camera may be helpful. FIir has some really affordable models
now, I have the TG 167 which is plenty of resolution for electrical.
They can find problems in load centers really fast; we found an
overloaded neutral the other day we would not have noticed otherwise.
R. Ray Walters
Chief Technical Officer, RemoteSolar.com
BS Mech Engineering, 1988
Former NABCEP Certified, 2004-2016
Licensed Master ELectrician, Colorado
303 505-8760
On 3/27/17 5:49 PM, Dana wrote:
Check for a loose neutral.
----------------------------------------------------------------------------
Dana Orzel Great Solar Works, Inc.
*208.721.7003 [email protected]*
Idaho Contractor - # 028765 Idaho PV # 028374
NABCEP # 051112-136 www.solarwork.biz
_"Responsible Technologies for Responsible People since 1988" ___
*P*Please consider the environment before printing this email.
*From:*RE-wrenches [mailto:[email protected]]
*On Behalf Of *August Goers
*Sent:* Monday, March 27, 2017 11:55 AM
*To:* RE-wrenches <[email protected]>
*Subject:* Re: [RE-wrenches] Sunpower micros and mysterious outages
Strange one. I would be surprised if the PV system has anything to do
with this. We’ve experienced strange electrical intermittent problems
and they have almost always been related to grounding or neutral
problems. I realize that two different electricians have checked out
the site, but maybe they missed something like a loose neutral (check
all the way back to the service point of connection). It might be
worth calling the utility out as well incase their feed has problems.
August
Luminalt
*From:*RE-wrenches [mailto:[email protected]
<mailto:[email protected]>] *On Behalf Of
*Hilton Dier III
*Sent:* Monday, March 27, 2017 9:04 AM
*To:* [email protected]
<mailto:[email protected]>
*Subject:* [RE-wrenches] Sunpower micros and mysterious outages
Friends of mine got a Sunpower system installed last year. Ever since
then they have had intermittent problems with circuits in their house
going dead.
The array is 14 each Sunpower SPR E20 327 C AC. The array is mounted
on a corrugated steel roof on their garage, about 20 feet from the house.
What happens is that a circuit in their house will either go dead or
brown out so lights barely glow. This happens to various circuits and
at any time of day or night. The rest of the circuits will work fine
and the event will last an hour or two. The breakers don't trip. They
have had two different electricians there to check the house wiring
and it's all solid.
Any ideas? Some kind of metal roof capacitance?
Many thanks,
Hilton
--
Hilton Dier III
Missisquoi River Hydro
Renewable Energy Design
453 East Hill Rd.
Middlesex, VT 05602
Tel: 802-223-6652
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