Sunny Boy 700: AC coupling question [RE-wrenches]

[Allan Sindelar]

Mick,
Consider the Sunny boy 1100, if it's still available (not sure). Small size,
slightly higher DC voltage range, 230VAC output, and old enough that it
didn't have a zero-crossing reference neutral. This option avoids the
transformer losses.
Allan (now just doing off-grid) at Positive Energy 

-----Original Message-----
From: Mick Abraham [mailto:mick at abrahamsolar.com] 
Sent: Friday, May 16, 2008 10:38 AM
To: RE-wrenches at topica.com
Subject: Sunny Boy 700: AC coupling question [RE-wrenches]



The preferred battery based inverter for my project du monde is pure 
sine, 60 hz, but 230 volt AC with no neutral.

To "AC couple" a Sunny Boy 700 with that inverter, can I insert a 2:1 
transformer to double the Sunny Boy's AC output voltage so it can hook 
up with the battery based inverter?

Could anyone suggest a source for a high efficiency (toroid?) type 2:1 
converter appropriate for this sub kilowatt load?

Mick Abraham, Proprietor
www.abrahamsolar.com


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