Sungrow SG250HX-US, Руководство пользователя

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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 ex-
cept for the tracking axis.
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.
B Inverter SG250HX
C Transformer
Boost the low voltage from the inverter to grid-compatible me-
dium voltage.
D
Utility grid
TN-C, TN-S, TN-C-S, TT, IT.
The following figure shows the common grid configurations.