Product Introduction; Intended Use - Sungrow SG2K5-S User Manual

2 Product Introduction

2.1 Intended Use

The inverters, which are single-phase string inverters without transformer, are
the crucial units between the PV strings and the utility grid in a PV power
system.
The inverter converts DC power from the PV array into grid-compliant AC power
and feeds it into the utility grid.
Any use other than the intended use is not permitted.
The inverter must only be operated with PV strings of protection class
II in accordance with IEC 61730, application class A. It is not permitted
for the positive pole or the negative pole of the PV strings to be
grounded. This can cause the inverter to be destroyed.
Damages to the product due to a faulty or damaged PV installation are
not covered by warranty.
The intended use example is shown in Fig. 2-1.
PV power
A
Item Description
A PV strings
B Inverter
4
Output power
B
Fig. 2-1 Application in a PV Power System
Remarks
Monocrystalline silicon, polycrystalline silicon
and thin-film without grounding.
SG2K-S,
SG5K-D and SG8K-D.
Load power
C
E
SG2K5-S,
Export power
D
SG3K-S, SG3K-D,