SMA Sunny Island - anyone doing three phase? [RE-wrenches]

[John Berdner]

Larry/Wrenches:
 
Jeff is correct. We can not do a Multi-cluster system in the US with UL
Listed equipment (yet).
If the system is outside the US, or where UL is not required, then you
can use European versions set for 60 hz.  This gives you 230/400 Vac, 3
phase @ 60 Hz.  You can then use a custom transformer or 3 autoformers
to get it to 120/208 or 277/480.  If you have further questions please
feel free to contact me offline.
 
Best Regards,
 
John Berdner

>>> jeff at hvce.com 10/19/2007 09:33:58 AM >>>

Larry,

I believe the currently available SI5048 is not fully capable of such
large
clustering (yet). Might be a UL or software issue. You should ask SMA
to
be sure.

Jeff Irish
Hudson Valley Clean Energy, Inc.

-----Original Message-----
From: Larry Crutcher, Starlight Solar [mailto:larry at starlightsolar.com]

Sent: Thursday, October 18, 2007 1:13 PM
To: RE-wrenches at topica.com 
Subject: SMA Sunny Island - anyone doing three phase? [RE-wrenches]


Wrenches,

The SMA SI5048 brochure says "up to 4 parallel inverters and up to 78kW

output" can be used in 3-phase configuration. Has anyone built a three

phase system with the SMA SI inverters? Have you been able to stack the

inverters successfully? Or, have you built a multi-cluster? 

I need to build 30kW @ 208vac. Please contact me at 928-941-1660 if you

have time to answer a few questions I have.

Larry Crutcher
Starlight Solar
Yuma, AZ
Renewable Energy Products Powered by STARLIGHT




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