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Sungrow SG3K-S User Manual

Sungrow SG3K-S
95 pages
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SG2-6K-UEN-Ver14-202003 Version1.4
User Manual
SG2K-S / SG2K5-S / SG3K-S /
SG3K-D / SG3K6-D / SG4K-D /
SG4K6-D / SG5K-D / SG6K-D
PV Grid-Connected
Inverter

Table of Contents

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Sungrow SG3K-S Specifications

General IconGeneral
BrandSungrow
ModelSG3K-S
CategoryInverter
LanguageEnglish

Summary

Sungrow PV Grid-Connected Inverter User Manual

Understanding Safety Symbols

Safety Precautions

Inverter Safety Guidelines

Inverter Operational Safety

Covers dangers of electric shock, personal injury, and hot components.

Operational Voltage Parameters

Inverter Voltage Operation Range

Details the allowable voltage limits for initial start-up and reconnection.

Voltage and Frequency Operation Parameters

Inverter Frequency Operation Range

Defines the allowable frequency limits for initial start-up and reconnection.

Active Power Regulation - Over-voltage Response

Active Power Reduction on Over-Voltage

Explains how the inverter reduces active power export when grid voltage is too high.

Active Power Regulation - Over-frequency Response

Active Power Reduction on Over-Frequency

Describes how the inverter reduces power output linearly with increasing frequency.

Under-Frequency Response

Active Power Increase on Under-Frequency

Explains how the inverter increases power output with decreasing frequency.

Reactive Power Regulation Modes

Mechanical Mounting Safety and Location

Safety Precautions for Mounting

Highlights dangers during mounting, including electric shock and improper handling.

Installation Environment and Carrier Requirements

Installation Environment Conditions

Specifies requirements for inflammable materials, children access, temperature, and humidity.

Inverter Installation Procedure

Mounting the Inverter Bracket

Details aligning and drilling for the wall mounting bracket, ensuring it is level.

Securing and Connecting the Inverter

Securing the Inverter to the Bracket

Describes mounting the inverter to the bracket and securing it with screws.

Electrical Connection Safety

Electrical Connection Safety Precautions

Emphasizes PPE, disconnecting power, and voltage-free checks before electrical work.

Inverter Terminal Descriptions

Inverter Terminal Layout

Identifies and describes the function of each terminal on the bottom of the inverter.

Additional Grounding Connection

Additional Grounding Requirements

Explains the necessity of grounding non-current carrying metal parts and enclosure.

AC Cable Connection and Requirements

AC Connection Side Requirements

Covers grid approval, voltage/frequency compliance, and AC circuit breaker specifications.

AC Connector Assembly

Assembling the AC Connector

Provides step-by-step instructions for assembling the AC connector and cable.

Installing the AC Connector

Connecting the Inverter to AC Terminal

Details aligning, mating, and securing the AC connector to the inverter's AC terminal.

DC Cable Connection Safety

PV Connector Assembly

Assembling the PV Connector

Provides steps for stripping DC cable insulation and preparing PV connectors.

Installing the PV Connector

Connecting Inverter to PV Strings

Details rotating the DC switch and connecting PV connectors to strings.

Inverter Commissioning Procedure

Pre-Commissioning Inspection Checklist

Lists essential checks before starting the inverter for the first time.

First-Time Inverter Startup

Details the steps to start up the inverter after installation.

Commissioning Country and Parameter Settings

LCD Operation and Button Functions

Inverter LCD Button Functions

Describes the functions of the navigation (▼) and confirmation (ENT) buttons on the LCD.

LCD Menu Navigation and Error Display

Viewing Active Errors and Warnings

How to view active error or warning codes on the inverter's LCD screen.

Viewing Running Information and Advanced Settings

Accessing Detailed Running Information

Explains how to navigate through the LCD to view detailed operational data.

Setting Inverter Protective Parameters

Configuring Grid Protection Parameters

Details setting protective parameters like over-voltage and under-voltage thresholds.

Country-Specific Protective Parameters and Recovery

Grid Protection Voltage Adjusting and Total Export

Automatic Grid Protection Voltage Adjusting

Enables automatic adjustment of grid protection voltage thresholds for unstable grids.

Energy Adjustment, Communication, and Inverter Control

Starting and Stopping the Inverter

Procedure for starting and stopping the inverter via the LCD menu.

Viewing Records, Time, and Country Settings

Accessing the Error Record

How to view historical error codes and their timestamps on the LCD.

Italian Auto Test Procedure

Performing Auto Test for Grid Protection

Details the auto test process for verifying frequency and voltage protection functions.

System Decommissioning Procedures

Disconnecting the Inverter from Power Sources

Provides step-by-step instructions for safely disconnecting the inverter from AC and DC power.

Troubleshooting Inverter Issues

Troubleshooting LED Indicators

Helps diagnose issues based on the state of the inverter's LED indicator.

Troubleshooting LCD and App Errors

Provides solutions for error codes displayed on the inverter's LCD or mobile app.

Inverter Maintenance Procedures

Performing Inverter Maintenance Safely

Outlines safety procedures and precautions before performing any maintenance work.

Technical Data and Specifications

-D Series Technical Data

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