Solar Photovoltaic Grid-Connected Inverter SG3KTL-EC
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1. Structure of Solar Photovoltaic Grid-Connected Inverter SG3KTL-EC Description
A solar inverter, or PV inverter, or Solar converter, converts the variable direct current (DC) output of a photovoltaic (PV) solar panel into a
utility frequency alternating current (AC) that can be fed into a commercial electrical grid or used by a local, off-grid electrical network. It is a
critical BOS–component in a photovoltaic system, allowing the use of ordinary AC-powered equipment. Solar inverters have special
functions adapted for use with photovoltaic arrays, including maximum power point tracking and anti-islanding protection.
2. Main Features of the Solar Photovoltaic Grid-Connected Inverter SG3KTL-EC
• Flexible design due to dual MPP tracking that is equipped to obtain full nominal power, 3-phase supply
• High energy yield due to maximum efficiency up to 98.1%
• Low noise levels and internal consumption due to natural cooling
• Integrated theft protection
• Access to Home WiFi system and enjoy cloud services via smart phones
• Integrated power management function, easy to receive the adjustable command from grid
• Extensive communication: RS-485, Ethernet, WLAN / WiFi, 4 digital inputs for ripple control receivers
• Product certification: TÜV, VDE 0126-1-1, EN 62109-1/-2, CE, G83/1, VDE-AR-N 4105
• Manufacturer certification: ISO 9001, ISO 14001, OHSAS 18000
3. Solar Photovoltaic Grid-Connected Inverter SG3KTL-EC Images
4. Solar Photovoltaic Grid-Connected Inverter SG3KTL-EC Specification
Input Side Data | |
Max. PV input power | 3191W |
Max. PV input voltage | 1000V |
Startup voltage | 200V |
Nominal input voltage | 610V |
MPP voltage range | 140~900V |
MPP voltage range for nominal power | 160~800V |
No. of MPPTs | 2 |
Max. number of PV strings per MPPT | 1/1 |
Max. PV input current | 19.8A(9.9A/9.9A) |
Max. current for input connector | 10A |
Short-circuit current of PV input | 24.8A(12.4A/12.4A) |
Output Side Data | |
Nominal AC output power | 3000W |
Max AC output power（PF=1) | 3000W |
Max. AC output apparent power | 3000VA |
Max. AC output current | 4.4A |
Nominal AC voltage | 3/N/PE,230/400Vac |
AC voltage range | 310~480Vac(May vary as per corresponding country's grid standard) |
Nominal grid frequency | 50Hz |
Grid frequency range | 45~55Hz |
THD | < 3 % (Nominal power) |
DC current injection | <0.5 %In |
Power factor | >0.99@default value at nominal power, |
Protection | |
Anti-islanding protection | Yes |
LVRT | No |
DC reverse connection protection | Yes |
AC short circuit protection | Yes |
Leakage current protection | Yes |
DC switch | Integrated |
DC fuse | No |
Overvoltage protection | III |
System Data | |
Max. efficiency | 98.0% |
Max. European efficiency | 96.0% |
Isolation method | Transformerless |
Ingress protection rating | IP65 |
Night power consumption | <1W |
Operating ambient temperature range | -25~60℃(>45℃ derating) |
Allowable relative humidity range | 0~100% |
Cooling method | Natural cooling |
Noise | ≤29dB |
Max. operating altitude | 2000m |
Display | Graphic LCD |
Communication | Ethernet,RS485（RJ45 connector）, |
DC connection type | MC4 |
AC connection type | Plug and play connector |
Certification | VDE0126-1-1,EN62109-1,EN62109-2, |
Mechanical Data | |
Dimensions（W×H×D） | 403×518×190mm |
Mounting method | Wall bracket |
Weight | 22kg |
5. FAQ of Solar Photovoltaic Grid-Connected Inverter SG3KTL-EC
Q1. What is the difference between inverter and solar inverter?
A1. Inverter only has AC inpput, but solar inverter both connect to AC input and solar panel, it saves more power.
Q2. What is the difference between MPPT&PWM?
A2. MPPT has higher efficiency, it can track the max power point and won't waste energy.
- Q:What is the role of a solar inverter in voltage and frequency regulation during grid disturbances?
- The role of a solar inverter in voltage and frequency regulation during grid disturbances is to ensure stable and reliable power supply from solar panels to the grid. It monitors the voltage and frequency of the grid and adjusts the output of the solar panels accordingly to maintain a consistent and synchronized power flow. This helps to prevent power fluctuations and protect the grid from disturbances, ensuring efficient and safe operation of the electrical system.
- Q:Can a solar inverter be used with different solar panel types?
- Solar inverters are capable of being utilized with various types of solar panels. Their purpose is to convert the direct current generated by solar panels into alternating current, which is suitable for powering household appliances and injecting into the electrical grid. So long as the solar panels produce compatible levels of DC voltage and current, they can be connected to the solar inverter. Various solar panel types, such as monocrystalline, polycrystalline, and thin-film, may possess different electrical characteristics. However, modern solar inverters are typically equipped with advanced electronics that can adapt to these discrepancies. Nevertheless, it is crucial to ensure the solar inverter is appropriately matched with the solar panel specifications in order to achieve optimal performance and efficiency.
- Q:How does a solar inverter protect against overvoltage or overcurrent?
- A solar inverter protects against overvoltage or overcurrent by continuously monitoring the electrical output from the solar panels. If the voltage or current exceeds the safe operating limits, the inverter automatically adjusts the output or shuts down to prevent damage to the system. It achieves this through built-in protective mechanisms such as surge protectors, voltage regulators, and circuit breakers.
- Q:Can a solar inverter be used for commercial-scale solar installations?
- Yes, a solar inverter can be used for commercial-scale solar installations. In fact, commercial-scale solar installations often require larger and more powerful inverters to accommodate the higher electricity generation and consumption demands. These inverters are designed to handle the higher voltage and larger array sizes typically found in commercial installations, making them suitable for commercial-scale solar projects.
- Q:Can a solar inverter be installed outdoors?
- Yes, a solar inverter can be installed outdoors. However, it is important to ensure that the inverter is specifically designed for outdoor use and is protected from extreme weather conditions such as rain, snow, and excessive heat.
- Q:What is the role of a fault detection system in a solar inverter?
- The role of a fault detection system in a solar inverter is to monitor the performance and health of the inverter and solar panels, and to detect any faults or abnormalities that may occur during operation. It helps to identify issues such as short circuits, voltage fluctuations, overheating, or component failures, which can affect the efficiency and safety of the solar power system. By quickly identifying and alerting the user or system operator about these faults, the fault detection system allows for timely maintenance or repair, ensuring optimal performance and longevity of the solar inverter.
- Q:Can a solar inverter be connected to a smartphone app for monitoring?
- Yes, a solar inverter can be connected to a smartphone app for monitoring. Many solar inverter manufacturers offer mobile apps that allow users to monitor and control their solar power systems remotely through their smartphones. These apps provide real-time data on energy production, system performance, and can also enable users to adjust settings and receive alerts or notifications related to their solar power system.
- Q:Can a solar inverter be used with different types of communication protocols?
- Yes, a solar inverter can be used with different types of communication protocols. Many modern solar inverters are designed to be compatible with various communication protocols such as Wi-Fi, Ethernet, RS485, and Modbus, among others. This flexibility allows the solar inverter to integrate with different monitoring systems, smart devices, or home automation systems, ensuring seamless communication and control.
- Q:What maintenance is required for a solar inverter?
- Regular maintenance for a solar inverter typically includes visual inspection for dust or dirt accumulation, checking for loose connections, monitoring the inverter's performance, and ensuring proper ventilation. Additionally, it is recommended to clean the solar panels periodically to maximize the system's efficiency.
- Q:What is the difference between a central inverter and a string inverter?
- A central inverter is designed to convert the DC power generated by multiple solar panels into AC power at a central location. It usually handles larger power capacities and requires professional installation. On the other hand, a string inverter is installed near the solar panels and converts the DC power generated by a string or series of panels into AC power. It is typically used in smaller-scale solar installations and is easier to install and maintain.
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Solar Photovoltaic Grid-Connected Inverter SG3KTL-EC
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50000 unit
- Supply Capability:
- 300000 unit/month
OKorder Service Pledge
OKorder Financial Service
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