4
2 Safety Instructions
2.1
Intended Use
The outdoor central inverter developed and manufactured by Sungrow converters the DC
current from the PV array into the AC current. The AC current can be fed into the MV grid
after processed by external boosting transformer. With the ingress of protection IP65, the
inverter can be installed outdoors.
The external transformer boosts the voltage output from the inverter to the grid-compatible
voltage, so that the inverter is connected to the grid. For specific transformer technical
requirements, refer to the Connection Requirements for Medium-voltage Transformers.
An example of intended usage of the inverter is shown below.
A
B
C
D
E
Fig. 2-1
PV grid-connected power generation system
Item
Name
A
PV array
B
Combiner box
C
Inverter
D
Boosting transformer
E
Utility grid
2.2
Safety Use Description
Read the safety instructions carefully before installing the inverter. Refer to corresponding
manuals for the safety instructions on the internal devices.
Death from electric shock due to touching the live components!
Do not touch the live components of the inverter or connected the utility grid.
Observe all safety regulations.
Lethal high voltage inside!
Follow the warning symbols on the product.
Observe the safety instructions described in this manual and other related
documents.
