[RE-wrenches] Surge protector update?

[boB Gudgel]

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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