Functions Description - Sungrow SG3KTL-EC User Manual

2 Product Introduction

2.3.2 Functions Description

Inverter functions can be grouped as the following:

Conversion function
Inverter converts the DC power into AC power, which conforms to the grid
requirements of its installation country.

Parameters configuration
Inverter provides various parameters configuration for optimal operation.

Communication interfaces
RS485 serial communication with RJ45 port (RS485), Ethernet communication
with RJ45 port (NET), Wi-Fi and DI connection terminals.

Earth fault alarm
With a standard Ethernet interface and a Wi-Fi terminal equipped, the inverter
can be connected to the router via a network cable or the Wi-Fi antenna. Then
both the inverter information and alarm signals will be uploaded to the cloud
server SolarInfo Bank. When the server receives an earth fault signal, it will
automatically send warning e-mail to the registered user.

Zero export (0% feed-in function, optional)
At the grid-connection point, the three-phase SUNGROW Energy Meter is used
for measuring the feed-in power. Enable the feed setting and set the limit value
via the LCD menu. Then the inverter will run with power derating once the meter
detects that the feed-in power is above the set value.

Protection functions include:
− Short circuit protection
− Insulation resistance detection and alarm
− Inverter output voltage monitoring
− Inverter output frequency monitoring
10
Fig. 2-5 Main Circuit Diagram of inverter
User Manual