[RE-wrenches] Diode Failure

[toddcory at finestplanet.com]

try digikey or mouser electronics 
 
todd
 
 


On Monday, October 20, 2014 1:51pm, "Corey Shalanski" <cshalanski at joule-energy.com> said:



Wrenches,
Since my previous post (see below) we have recovered the faulty modules and are now looking to replace the diodes in order to make them functional again. I have had no success sourcing replacement diodes from the original module manufacturer, Mage Solar.
Can anyone recommend a source for replacement diodes?
--
Corey Shalanski
Joule Solar
New Orleans, LA




ᐧ

On Tue, Aug 5, 2014 at 10:27 AM, <[ re-wrenches-request at lists.re-wrenches.org ]( mailto:re-wrenches-request at lists.re-wrenches.org )> wrote:

Message: 10
Date: Tue, 5 Aug 2014 09:03:09 -0500
From: Corey Shalanski <[ cshalanski at joule-energy.com ]( mailto:cshalanski at joule-energy.com )>
To: [ RE-wrenches at lists.re-wrenches.org ]( mailto:RE-wrenches at lists.re-wrenches.org )
Subject: [RE-wrenches] Diode Failure
Message-ID:
        <[ CA+SmqZ1C7KSZuQnVzQr0MMuX3F2dT6YDuM40iseCzr2EJRgA+Q at mail.gmail.com ]( mailto:CA%2BSmqZ1C7KSZuQnVzQr0MMuX3F2dT6YDuM40iseCzr2EJRgA%2BQ at mail.gmail.com )>
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Wrenches,

We recently were contacted by a customer who reported a lightning strike
close to his house. His online monitoring revealed that 30 of 35
microinverters simultaneously stopped producing power. On initial visit to
the jobsite we measured Voc on many modules - either 12V or 24V instead of
rated 36V. On a second visit we discovered that bypass diodes - either 1 or
2 corresponding to observed voltage loss - had failed on each of the faulty
modules.

My question is: Can anyone support the theory that a nearby lightning flash
can cause mass bypass diode failure?

--
Corey Shalanski
Joule Energy
New Orleans, LA


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