[RE-wrenches] Transformerless inverters require special plug leads on the PV modules, right?

[Darryl Thayer]

The transformer-less inverter does not have the separation between AC and DC as in a transformer type. The Solar Modules do not have overcurent protection as in the AC system.  So the wire has to be sized Isc x 156% all the way through the system or larger if required by the AC system.  

--- On Thu, 2/25/10, Mick Abraham <mick at abrahamsolar.com> wrote:

> From: Mick Abraham <mick at abrahamsolar.com>
> Subject: [RE-wrenches] Transformerless inverters require special plug leads on the PV modules, right?
> To: "RE-wrenches" <re-wrenches at lists.re-wrenches.org>
> Date: Thursday, February 25, 2010, 12:54 PM
> Hi, Mechanix~
> 
> Am I correct that the good ol' plug connector leads on
> many solar modules are non-compatible with transformerless
> grid-tie inverters? If so...which module mfrs have switched
> to the different type of wire and how can I be sure?
> 
> 
> 
> Specifically, would the 2010 Sharp 230 polycrystal or the
> Yingli 230 polycrystal modules be properly equipped for use
> with the x-formerless inverters?
> 
> ...and...the next time I buy #10 sunlight resistant wire
> for making up my own plug extensions...should I buy a more
> exotic wire type and how do I know what will work?
> 
> 
> 
> Thanks,
> 
> Mick Abraham, Proprietor
> www.abrahamsolar.com
> 
> Voice: 970-731-4675
> 
> 
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