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Network Application
The SUN2000 applies to grid-tied PV power systems for commercial rooftops and large
power stations. A typical grid-tied PV power system consists of PV strings, grid-tied inverters,
and AC distribution units (ACDUs), as shown in Figure 2-2.
Figure 2-2 SUN2000 network application
A model in the range from SUN2000-8KTL to SUN2000-23KTL can connect to the low-voltage power
grid directly without connecting to a transformer.
Power Grid Modes for the SUN2000
All SUN2000 models except the SUN2000-28KTL support the power grid modes TN-S,
TN-C, TN-C-S, and TT, as shown in Figure 2-3. The SUN2000-28KTL supports the IT mode,
as shown in Figure 2-4.
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