[RE-wrenches] dual stacked inverters on 208V service

[David Katz]

Nik,
Since you cannot operate 2 inverters in a 3 phase mode, they will need 
to operate independently, so don't try to sync them.  Operate both 
independently.  if the building is set up for 120/208 there is not 240 
anyway.  You could stack them in 120V synchronized and connected across 
a single phase.  you may be able to stack them at 240 and only connect 
one of the inputs to AC in.
good luck.
David

David Katz

Chief Technical Officer

AEE Solar

1155 Redway Drive

P.O. Box 339

Redway, CA  95560

Tel (707) 825-1200

Fax (707) 825-1202

dkatz at aeesolar.com <mailto:david at aeesolar.com>

www.aeesolar.com <http://www.aeesolar.com/>

 

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Nik Ponzio wrote:
> Hi Gang,
>
> I have a problem. We are installing a gridtie PV system with 2 
> battery-based inverters for 240V. The service coming in to the condo 
> is 120/208 split-phase fed from 3-phase 208 in main building. The 
> master inverter pickups up L1 but the slave inverter will not sync. 
> What am I missing?
>
> Thanks and Happy New Year to all!
>
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