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2 Product Description
2.1 Intended Usage
SG80KTL inverter, 3-phase string inverter without transformer, is a crucial unit in the
PV power system.
Inverter is designed to convert the direct current power generated from the PV
modules into grid-compatible AC current and feeds the AC current to the utility grid.
The intended usage of the inverter is illustrated in Fig. 2-1.
Inverter cannot connect the PV strings whose positive and negative
terminals need to be grounded.
Do not connect any local load between the inverter and the AC circuit
breaker.
Inverter is applicable only to the grid-connected PV system. Any other
usage is strictly forbidden.
Fig. 2-1 Inverter application in PV power system
A PV strings
Monocrystalline silicon; polycrystalline silicon and thin-film
without grounding
B Inverter SG80KTL
C
Measure inverter output energy
TT, TN-C, TN-S, TN-C-S, IT
If the local altitude is above 3000m, the inverter cannot apply to the IT grid system.
The following figure shows the common grid configurations.
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