SMA Solar Technology AG
Connecting External Sources
Technical Description
SI5048-TEN093630
117
Generator Phase Failure
The failure of a phase (e.g. broken fuse) on a slave device is treated as a phase failure. The slave
device then disconnects this phase. If the phase is detected as being available again, it is reconnected
after the warm up time "234.12 GnWarmTm" has elapsed.
The phase failure on the master device is treated as a generator failure (see above).
Slave Device Failure
You can influence the behavior of the cluster upon failure of a slave device. You can find more
information in chapter 12.8 ”Reaction in case of failures” (page 91).
14.2 Grid
The Sunny Island supports the operation of grid backup systems on the grid. Here, a distinction is
made between two main states: either a main power grid and stand-alone grid are connected or a
main power grid and stand-alone grid are disconnected. The operating mode of the Sunny Island is
derived from this. If the stand-alone grid is disconnected, the Sunny Island alone is responsible for
powering this stand-alone grid. If the main power grid is connected to the stand-alone grid, the stand-
alone grid is powered from the main power grid. The voltage and frequency in the stand-alone grid
and in the main power grid are identical.
Operating Mode "Grid Charge"
Under specific conditions, the system can also temporarily feed energy from the stand-
alone grid into the main power grid in the GridCharge operating mode ("232.08 GdMod"
parameter).
Summary of Contents for SI 5048
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