[RE-wrenches] Surge protector update?

[North Texas Renewable Energy Inc]

It was at the combiner below the ground mounted array and 50-60 feet from 
the inverter.
Jim Duncan
North Texas Renewable Energy Inc
817.917.0527
ntrei at earthlink.net
www.ntrei.com

----- Original Message ----- 
From: "boB Gudgel" <boB at midnitesolar.com>
To: "RE-wrenches" <re-wrenches at lists.re-wrenches.org>
Sent: Friday, July 31, 2009 1:53 PM
Subject: Re: [RE-wrenches] Surge protector update?


> 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
>> ntrei at earthlink.net
>> www.ntrei.com
>>
>>
>>
>> --- Original Message ----- From: "August Goers" <august at luminalt.com>
>> To: "RE-wrenches" <re-wrenches at 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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