Hi Peter,
What I'm curious about is at what voltage does this occur. 48, 160???
I have 3 in series on a ungrounded system for 2 years now and are
working just fine. Output is what is should be and no problems.
I know that Sunpower has a white paper that shows at lower voltages
there is no problem, but above 180v ( if memory serves) there are
problems.
jay
peltz power
On Sep 22, 2008, at 10:01 AM, ASAP POWER! 2 wrote:
Bill,
I think Doug P. actually sent this to us. Hope attachments work on
this
list. I think I've seen them before in my inbox from others, but if
not,
request off-line.
Peter D.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Bill
Brooks
Sent: Sunday, September 21, 2008 10:28 PM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] evergreen panels diode problems
Doug,
I'd like to see the bulletin about why they could not positively
ground
their modules. It seems quite odd.
Positively grounding a module in general should have no effect on a
typical
module. As to why it helps the SunPower module, they have an
explanation,
but I'm not convinced it is true--it just works--and that is all that
matters.
Bill.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Doug
Pratt
Sent: Saturday, September 20, 2008 5:25 PM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] evergreen panels diode problems
Jay, there was a bulletin from Evergreen earlier this year about their
modules being used in positive ground systems. I don't remember the
exact
details (and I'm not at work now), but the gist was avoid positive
ground
till we make some modifications. Please check w/Evergreen on Monday.
-Doug Pratt
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of jay
peltz
Sent: Thursday, September 18, 2008 5:24 PM
To: RE-wrenches
Subject: [RE-wrenches] evergreen panels diode problems
Hi All,
I"ve got two evergreen 170 watt panels with bad bypass diodes in them.
In service for under 2 months.
Only odd thing is that this is a positive ground system.
They are running at 3 in series for a 48v system.
Anybody else have problems with them?
thanks
jay
peltz power
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