SMA SI 3324 Installation - Manual (Page 11)

SMA Technologie AG The Sunny Island 3324/4248
Installation Guide SI3324/4248-14:SE2406 Page 11
2 The Sunny Island 3324/4248
2.1 General Description
The Sunny Island 3324/4248 is a bidirectional battery power converter (battery
inverter and charger), ideally suited for use in stand-alone grid operation. This
inverter allows you to charge lead acid batteries, using power sources provided on
the AC side (e.g. generator, public grid, Sunny Boy). The Sunny Island 3324/4248
creates a 230 V AC stand-alone grid using the energy stored in the batteries,
allowing stable operation of connected loads and power generation devices (e.g. PV
inverters).
Energy sources can also be connected on the DC side, as long as the specified limits
are not exceeded (see section 19 "Technical Data" (Page 149)).
The Sunny Island 3324/4248 is able to control a starter contact for a generator and
automatically connect or disconnect it to an AC-grid (see section 12 "Generator"
(Page 111)).
The Sunny Island 3324/4248 can also switch off particular loads if the batteries do
not have sufficient electrical energy available (see section 5.4.3 "Load shedding"
(Page 48)).
The Sunny Island 3324/4248 can be used in different system configurations.
Detailed information on the different stand-alone systems can be found in section 10
"System Examples" (Page 87).