7
2
Product Description
2.1 System Introduction
The inverter is a transformerless 3-phase PV grid-connected inverter. As an integral compo-
nent in the PV power system, the inverter is designed to convert the direct current power
generated from the PV modules into grid-compatible AC current and to feed the AC current
into the utility grid.
The intended usage of the inverter is illustrated in the following figure.
figure 2-1 Inverter Application in PV Power System
The inverter must not be connected to a PV string that requires positive or negative
grounding.
Do not connect any local load between the inverter and the AC circuit breaker.
When designing the system, ensure that the operating ranges of all devices that
are connected to the inverter meet the requirements of the inverter.
The PV modules in the system must comply with the IEC 61730-1 (2016) class Ⅱ
standard.
The inverter applies only to the scenarios described in this manual.
Item
Description
Note
A
PV strings
Monocrystalline silicon, polycrystalline silicon and thin-film
without grounding.
Optimizer
Connected to the PV module by its input cable, the optimizer
can track the module's maximum power and output the de-
sired voltage through a DC/DC voltage conversion circuit.
B Inverter
SG25CX-P2, SG30CX-P2, SG33CX-P2, SG36CX-P2,
SG40CX-P2, SG50CX-P2
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