Sunny Island
3.4.5 Connection to Generator Current and Voltage Measurement
If a generator (diesel, gas) is integrated into the island grid the diesel voltage must
be measured via the input "Diesel sync input" of the Sunny Island.
All integrated monitoring and control features are not available until also the diesel
current is fed to the Sunny Island via an inverter. The measurement is connected as
shown in Fig. 3.8.
Diesel current
input
Diesel sync.
input
Sunny Island
Fig. 3.8: Connection of generator current and voltage measurement
1) Fuses for the protection of the generator voltage sensor cables, 2) Current converter
Ensure sufficient fusing of the generator voltage sensor cables.
The cross-section of the cable leading from the current converter to
the inverter should be large enough to keep losses low (compare
Fig. 3.9).
BWRI33-12:EE
X2:
-I
1
+I
2
L
3
N
4
L
PE
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Installation & Operating Instructions
1)
2)
k
k
N
G
L
L
L
N
SMA Regelsysteme GmbH