Sunny Island 4500
Installation & Operating Instructions
BWRI45-13-EE0304
- 56 -
SMA Regelsysteme GmbH
3.4.8 Connection to Generator and Utility
Such a plant option requires a very careful design and installation in
order to prevent accidents based on the assumption that the plant is
deenergized as it is disconnected from the utility!
In several operating modes energy feeding into the external utility is
possible via the Sunny Island!
The illustrated interconnection plans show the principle grid connec-
tion.
In any case, the local applicable regulations have to be complied
with and the approval of the public utility company is mandatory!
The connection of the island grid with generator to an external utility is supported by
the Sunny Island from Firmware BFR 1.50 and higher. For this purpose a special ex-
ternal interconnection with the voltage measurement is required, as shown in
Fig. 3.14.