Safety Instructions; Intended Usage; Important Safety Instructions - Sungrow SG500MX Operation Manual

2 Safety Instructions

2.1 Intended Usage

The MX-series inverter (It will be referred to as inverter hereinafter unless otherwise specified), a
central inverter without transformer, is a crucial unit in a grid-connected PV power system.
Inverter is dedicated to converting direct current (DC) generated by the PV modules into
alternating current (AC), which conforms to parameters of local utility grid, and feeds the
alternating current into the utility grid.
With IP21 protection degree, the inverter must be installed indoors.
An example about intended usage of the inverter is shown below.
A
No. Name
A PV arrays
B PV array combiner box
C Inverter
D Medium-voltage Transformer
E Utility grid
 The intended usage described in this section must be strictly observed. Any other or
additional usage other than the intended usage is not permitted.
 Wiring and connections other than the contents described in this section may lead to
device damages and void warranty claims.

2.2 Important Safety Instructions

This section introduces the safety precautions during inverter installation and commissioning.
Read this manual carefully especially the safety instructions. For the detailed safety notices,
please refer to the corresponding installation and commissioning chapter.
Shock Hazard!
Death resulting from burns and electric shock upon touching the inverter live
components.
 Do not touch the live components of the inverter or the utility grid.
 Observe all safety regulations.
4
B
Fig. 2-1 Application of Inverter to the PV Power System
C D E