[RE-wrenches] Enphase Inards - Any Guesses?

[boB Gudgel]

On 4/25/2011 8:56 AM, Mark Frye wrote:
>
> Folks,
>
> I have an Enphase D380 micro inverter sitting on my workbench (such as 
> it is).
>
> With my ohm meter I can detect continuity between the chasis and the 
> AC equipment ground pin, between the chasis and the DC- pin, and 
> between the AC equipment ground pin and DC- pin.
>
> My assumption is that each of these three is electrically identical 
> and solidly connected inside the inverter. But, I don't know.
>
> The folks at Enphase tech support will not tell me whether or not this 
> is true.
>
> Anyone out there have any ideas about this?
>


I believe those inverters may have internal Ground Fault Protection and 
would connect, at least,
the DC negative to Chassis (earth) ground via a resettable (hopefully 
resettable) fuse.

One could measure this if they knew what they were doing.

Not sure about the AC side continuity.

boB




>
> Mark Frye
> Berkeley Solar Electric Systems
> 303 Redbud Way
> Nevada City,  CA 95959
> (530) 401-8024
> _www.berkeleysolar.com_ <http://www.berkeleysolar.com>
>
>
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