4
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 feeds the AC current to
the utility grid.
•
The inverter must only be operated with PV strings with class II protection in ac-
cordance with IEC 61730, application class A. It is not allowed for the positive
pole or the negative pole of the PV strings to be grounded. This can cause dam-
age to the inverter.
•
Damages to the product due to a faulty or damaged PV installation are not cov-
ered by warranty.
•
Any use other than the one described in this document is not permitted.
•
During the installation and operation of the inverter, please ensure that the posi-
tive or negative polarities of PV strings do not short-circuit to the ground. Oth-
erwise, an AC or DC short-circuit may occur, resulting in equipment damage.
The damage caused by this is not covered by the warranty.
The intended usage of the inverter is illustrated in the following figure.
figure 2-1
Inverter Application in PV Power System
Item
Description
Note
A
PV strings
Compatible with monocrystalline silicon, polycrystalline silicon,
and thin-film modules without grounding
B
Inverter
SG3.0RT, SG4.0RT, SG5.0RT, SG6.0RT, SG7.0RT, SG8.0RT,
SG10RT, SG12RT, SG15RT, SG17RT, SG20RT
Summary of Contents for SG10RT
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