[RE-wrenches] Replacing grounded inverters

[Glenn Burt]

If you read some of the proposed changes for the 2017 NEC, it is looking life there will be no problem replacing isolated inverters with non-isolated versions. In fact the proposed wording seems to allow either USE, or PV wire to be used with non-isolated inverters explicitly going forward.
It made me feel better about doing recent replacements.
I'm having more trouble with the TL inverters and AFCI issues on older systems, however.

-----Original Message-----
From: "Gary at Santa Ynez Valley Solar" <Gary at SYVSolar.com>
Sent: ‎7/‎21/‎2016 21:43
To: "re-wrenches at lists.re-wrenches.org" <re-wrenches at lists.re-wrenches.org>
Subject: [RE-wrenches] Replacing grounded inverters

We are all facing having to replace the old transformer based inverters when
they run out. Really difficult to find replacements. Against code to replace
with transformer less ones. I wonder if a DC/DC transformer could be
installed just ahead of the transformer less inverter for isolation
purposes? Not clear on the concept.

 

 

Gary

 

 

Gary Gordon

 

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    <http://www.syvsolar.com/> www.SYVSolar.com

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   Santa Ynez, CA  93460

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   CA Licensed Solar Contractor

 

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