North Texas Renewable Energy Inc wrote:
August
I made a service call to a residential PVinstallation several years
ago that I did not install. The vintage Trace, size I don't recall,
had quit working. The Delta surge suppressor had actually ruptured
along it's radial seam, a result I had always heard indicates a surge
being absorbed.
Do you know if the Delta was placed at the array, or near the inverter
?? Was most likely installed at the array ?
Thanks,
boB
The inverter went to the nearest authorized repair shop, a marine
maintenance facility near Houston. The only problem was a cooked
internal fusible link which was replaced free of charge.
The array was undamaged.
There's no way of knowing how close the lightning strike was but the
Delta worked as it was intended. It's the only experience I can relate
first-hand I'm happy to say.
It will be interesting to hear what sort of results you come up with.
Jim Duncan
North Texas Renewable Energy Inc
817.917.0527
nt...@earthlink.net
www.ntrei.com
--- Original Message ----- From: "August Goers" <aug...@luminalt.com>
To: "RE-wrenches" <re-wrenches@lists.re-wrenches.org>
Sent: Friday, July 31, 2009 9:21 AM
Subject: [RE-wrenches] Surge protector update?
Wrenches -
Anyone have experience with lighning hitting an array with a surge
protector installed? What happened?
I'm Here's an ad, point number 5 mentions that the surge protectors
installed in the array combiner box "protects solar modules and
blocking diodes..."
http://www.citel.us/dc_surge_protection_overview2.html
I'm trying to gather a firm opinion on whether they are a complete
waste of $$$ and time or not. Good grounding seems I would guess is
the best protection.
-August
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