[RE-wrenches] high insolation value and inverter under sizing (John Berdner)

[Dana]

On the subject of inverters wearing out:

 

I would share that the off grid houses that the contractor or client who
choose to use the inverter for running the air compressor, planer, and all
assorted power tools [at the same time]for the entire house construction
project had a definite shortened life of the inverter. My examination of the
inverter transformers in SW 4024 & 48's has revealed everything from
extremely darkened to ash covered windings on the transformers. Ash covered
windings are pretty scary folks. The shutdowns and intermittent battery
charging rates are tell tale of an issue here as they fail.

 

____________________________________________________________________________

Dana Orzel - Great Solar Works, Inc -  dana at solarwork.com  -
www.solarwork.com  

V - 970.626.5253                      F - 970.626.4140                 C -
970.209.4076                  

"Responsible Technologies for Responsible People since 1988"  NABCEP #
051112-136

 

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Chris Mason
Sent: Tuesday, January 29, 2013 6:04 PM
To: RE-wrenches (John Berdner)
Subject: Re: [RE-wrenches] high insolation value and inverter undersizing
(John Berdner)

 

The idea of the electronics "wearing out"is a strange one. The inverters are
only at full capacity for a small amount of the time, at peak hours which is
only 2 to 4 hours a day, and only for part of that time if you have clouds,
and who doesn't?

Pushing them a little harder should not "wear them out". So one question
would be, what is the rated duty cycle of the inverters?

 

Let's remember, we are not proposing to increase the operating voltage, just
to provide more current when needed. It's the inverter that chooses to use
the available current.

 

On Tue, Jan 29, 2013 at 2:21 PM, Great Northern Solar <gosolar at cheqnet.net>
wrote:

Just to add another $.02: 

 

I agree with Mr. Berdner, wearing out the electronics is a significant cost
in that scenario.

 

Energetically,

Christopher LaForge

Great Northern Solar

77480 Evergreen Road, Suite #1

Port Wing, WI 54865

715 774 3374 <tel:715%20774%203374> 

 


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-- 
Chris Mason

President, Comet Systems Ltd

www.cometenergysystems.com

Cell: 264.235.5670

Skype: netconcepts

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