[RE-wrenches] AC Coupling different brands

Kelly Larson solarwrench at asis.com
Sun May 26 13:01:28 PDT 2013


Hi Jeremy,

FYI:  I heard that Fronius is the most sensitive of the GT inverters and so the most difficult to "fool" or keep on in an AC coupled system.  That was from the Magnum AC Coupling webinar.

Blessings,
Kelly

Kelly Larson
Electrical Engineer
NABCEP Certified Solar PV Installation Professional
ISPQ Master Trainer
CA Electrical Contractor# 868189


On May 25, 2013, at 6:52 AM, All Solar wrote:

> Hope everyone is enjoying their weekend!
> I have a system where we have Installed a pair of XW inverters along with a 10k Fronius inverter. 
> We have been told that we need to limit the PV watts to the lowest XW inverter. We have XW capacity in excess of the array, so why can't they entire array feed the system when the grid is down?
> Of course tech support is tougher when you use different brand names, but I'm sure this has been done in the field already.
> Please contact me off list If you can help us out. The customers electrician on this job has been trying hard to figure it out, but I think he might be in too deep!
> 
> Jeremy Rodriguez
> All Solar
> CO. USA
> 
> 
> Sent by Jeremy's iPhone. Sorry for typos and shorthand!
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