1. Utangulizi
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your SUNGROW SG-RT-20 series three-phase solar inverter. The SG-RT-20 series includes models SG10RT-20, SG12RT-20, SG15RT-20, and SG17RT-20, designed for on-grid residential, commercial, and industrial photovoltaic systems. Please read this manual thoroughly before installation and keep it for future reference.
Kielelezo 1: Mbele view of the SUNGROW SG-RT-20 Series Solar Inverter
2. Sifa Muhimu
Kielelezo 2: Zaidiview of SUNGROW SG-RT-20 Series Inverter Key Features
- Mavuno ya Juu:
- Industry-leading efficiency of 98.4%
- Flexible PV string configurations
- High DC/AC ratio up to 1.3
- Smart Management:
- Firmware updates & new monitoring features
- Feature-rich online monitoring via App or Web
- Gain energy flow with Sungrow smart meter
- Salama na Kuaminika:
- Built-in surge arresters & RCD (Residual Current Device)
- Cutting-edge technology ensures long lifetime
- High anti-corrosion rating at C5
- Ufungaji Rahisi:
- Unique push-in connectors for time-saving installation
- Mounting plate with built-in level
- Fast and easy commissioning via App or LCD
3. Kuweka
3.1 Kuweka
The inverter should be mounted in a location that allows for adequate ventilation and is protected from direct sunlight and extreme weather conditions. Use the provided mounting plate with its built-in level to ensure a straight and secure installation. The unique push-in connectors are designed for quick and secure wiring.
3.2 Viunganishi vya Umeme
Ensure all power sources are disconnected before making any electrical connections. Refer to the detailed connection diagram below for proper wiring of AC output, DC input, and communication modules.
Figure 3: Inverter Connection Points
- Pato la AC: Connect the inverter to the grid via the designated AC output terminal.
- DC-IN Jack: Connect the DC input from your PV array to the DC-IN jacks. Ensure correct polarity.
- Kubadilisha DC: Use the integrated DC switch to safely disconnect the DC input.
- Shell Connection: Ensure proper grounding of the inverter shell.
- Ufuatiliaji wa WIFI: Connect the optional WiFi/GPRS communication module for remote monitoring.
3.3 Mchoro wa Mzunguko
The following diagram illustrates the internal circuit and connection points for the inverter. This diagram is for reference during installation and troubleshooting.
Figure 4: Inverter Circuit Diagram and Efficiency Curve
4. Maagizo ya Uendeshaji
4.1 Uagizaji wa Awali
After all electrical connections are securely made, turn on the DC switch and then the AC breaker. The inverter will perform a self-test. Follow the instructions on the LED display or use the mobile application for fast and easy commissioning.
4.2 Monitoring and Smart Management
The SG-RT-20 series inverters support smart management features, including online monitoring via a dedicated App or Web interface. An optional WiFi/GPRS communication module is required for this functionality.
Figure 5: WiFi Plug for Monitoring Connection
The WiFi plug connects the inverter to your network, allowing you to control power station information and fully monitor the output. The system is designed to adapt to complex power grids, extending grid-connected generation time.
Figure 6: Smart Monitoring Interface via Mobile App
Regular firmware updates are available to enhance features and monitoring capabilities. Utilize the Sungrow smart meter to gain insights into energy flow.
5. Matengenezo
To ensure optimal performance and longevity of your SUNGROW solar inverter, regular maintenance is recommended:
- Ukaguzi wa Visual: Periodically check the inverter for any visible damage, corrosion, or loose connections. The inverter has a high anti-corrosion rating (C5), but environmental factors can still affect its exterior.
- Kusafisha: Keep the inverter's cooling fins and ventilation openings free from dust and debris to ensure proper heat dissipation. Use a soft, dry cloth for cleaning. Do not use abrasive cleaners or solvents.
- Sasisho za Firmware: Regularly check for and install available firmware updates via the monitoring App or Web interface to benefit from new features and performance improvements.
- Ukaguzi wa Muunganisho: Ensure all electrical connections (AC and DC) remain tight and secure.
- Ufuatiliaji wa Utendaji: Regularly monitor the inverter's performance through the App or Web portal to detect any anomalies early.
For any complex maintenance tasks, it is recommended to contact qualified service personnel.
6. Utatuzi wa shida
This section provides general guidance for common issues. For detailed troubleshooting, refer to the comprehensive troubleshooting guide available through the official SUNGROW support channels.
- Hakuna Pato la Nguvu:
- Check if the DC switch is ON.
- Verify that the AC breaker is closed and there is grid power.
- Inspect DC input connections for proper polarity and secure contact.
- Check for any error messages on the LED display or monitoring app.
- Pato la Nguvu ya Chini:
- Ensure PV panels are clean and free from shading.
- Check for any performance alerts in the monitoring system.
- Verify that the PV string configurations are optimal.
- Communication Issues (WiFi/GPRS):
- Ensure the WiFi/GPRS module is correctly installed and powered.
- Check network connectivity and router settings.
- Restart the communication module and/or the inverter.
If the issue persists after basic checks, please contact SUNGROW technical support.
7. Vipimo
| Sifa | Vipimo |
|---|---|
| Nambari za Mfano | SG10RT-20, SG12RT-20, SG15RT-20, SG17RT-20 |
| Jina la Bidhaa | Sungrow Solar Inverter |
| Maombi | Residential/Commercial/Industrial System |
| Aina ya Inverter | Three Phase, DC/AC Inverter |
| Uingizaji Voltage (Upeo) | 1100V |
| Anza Voltage | 180V |
| Pato Voltage | 270V~480V |
| Pato la Sasa | 16.7A / 20A / 25A / 28.3A (depending on model) |
| Mzunguko wa Pato | 50/60Hz |
| Aina ya Pato | Mara tatu |
| Ufanisi wa Inverter | 98.5% |
| Muunganisho wa AC | OT / DT |
| Uunganisho wa DC | MC4 (Upeo wa 6 mm2) |
| Onyesho | LED |
| Mawasiliano | WiFi / GPRS (optional) |
| Uzito | 17kg |
| Vyeti | CE/ROSH/MSDS/UN38.3/IEC |
| Asili | China Bara |
8. Vidokezo vya Mtumiaji
Based on available information, here are some general tips for using your SUNGROW inverter:
- Uwekaji Bora: While the inverter has a C5 anti-corrosion rating, placing it in a shaded, well-ventilated area can help prolong its lifespan and maintain optimal operating temperature.
- Leverage Monitoring: Make full use of the App or Web monitoring features to track your system's performance, identify potential issues early, and ensure maximum energy harvest.
- Ukaguzi wa Mara kwa Mara: Periodically check all cable connections to ensure they remain tight and secure, especially after initial installation and during seasonal changes.
9. Udhamini na Msaada
9.1 udhamini
The SUNGROW SG-RT-20 series solar inverters come with a 5-year warranty, ensuring peace of mind regarding product quality and performance.
9.2 Msaada wa Kiufundi
For technical assistance, troubleshooting beyond basic steps, or warranty claims, please contact SUNGROW customer support. You may reach out via:
- Barua pepe: 397384418@qq.com
- WeChat/WhatsApp: +8613907407457
Please have your inverter model number and serial number ready when contacting support to facilitate quicker service.
