Photovoltaic Grid-Connected Inverters SG250K3
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 500000 unit
- Supply Capability:
- 3000000 unit/month
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1. Structure of Photovoltaic Grid-Connected Inverters SG250K3 Description
SG630KTL is using low-frequency isolation transformer for protective purpose. Its wider input voltage range ensures more combinations of
the PV arrays. Moreover, optical fiber isolation technology has been adopted to increase its anti-interference ability under the circumstances
of multiple inverters installation. In addition, optimized circuit and structural design has improved system thermal efficiency which enhancing
system reliability and stability. Reinforced protection functions, including the DC ground fault protection, make it the best product for large
scale PV power plant.
2. Main Features of the Photovoltaic Grid-Connected Inverters SG250K3
* Advanced Technology, Grid-friendly
• LVRT, HVRT and zero-voltage ride through to cope with various grid conditions
• SVG function at night, response to grid directives around the clock
• Reactive power control with power factor from 0.9 lagging to 0.9 leading
* More Compact, Saving Space for PV Plant
• Power density enhanced 50%, one of the central inverters with highest power density in the PV industry
• Save installation spaces and lower the plant initial cost
• Front maintenance, able to install against the wall, convenient installation and maintenance, saving operation cost of the PV plant.
* Efficient, More Yields
• Max. efficiency at 97.3% with transformer
• Efficient MPPT control strategy, improve power yields
• 28335 chips adopted, more accurate calculation, more power yields;
• Intelligent speed regulation cooling concept, low consumption, high efficiency
* More Advantages
• Perfect protection and fault alarm system, safe and reliable
• User-friendly dynamic graphics LCD
• Redundant dual power supply solution improving the system reliability
• Efficient PWM algorithm, low consumption of switch
• Operate without power derating at -25℃ - +55℃
• Reliable and continues operation in high altitude environment
• Auxiliary heater (opt.)
• CGC certification, compliance with BDEW
3. Photovoltaic Grid-Connected Inverters SG250K3 Images
4. Photovoltaic Grid-Connected Inverters SG250K3 Specification
MODEL | SG250K3 |
DC SIDE DATA | |
Max. DC Voltage | 1000Vdc |
Start Voltage | 500V |
MPP Voltage Range | 480~850Vdc |
Min. DC Voltage | 480V |
Max. DC Power | 284kWp |
Max. Input Current | 592A |
AC SIDE DATA | |
Rated Output Power | 250kW |
Max. AC Output Current | 397A |
Rated Grid Voltage | 400Vac |
Grid Voltage Range | 310~450Vac |
Rated Grid Frequency | 50Hz/60Hz |
Grid Frequency Range | 47~52Hz/57~62Hz |
Output Current THD | <3% (at nominal power) |
DC Current Injection | <0.5% of rated inverter output current |
Power Factor | 0.9(lagging)~0.9(leading) |
SYSTEM | |
Max. Efficiency | 97.3%(with transformer) |
Euro Efficiency | 96.7%(with transformer) |
Protection Degree | IP21 |
Power Consumption at Night | <80W |
Operating Temperature | -25~+55°C |
Cooling Method | Temperature controlled forced-air cooling |
Relative Humidity | 0~95%, non-condensing |
Max. Working Altitude | 6000m (operation with derating above 3000m) |
DISPLAY AND COMMUNICATIONS | |
Display | touch screen LCD |
Standard Comm. Interfaces | RS485 |
Optional Comm. Interfaces | Ethernet |
MECHANICAL DATA | |
Dimensions(WxHxD) | 1006x2034x850mm |
Net Weight | 1600kg |
5. FAQ of Photovoltaic Grid-Connected Inverters SG250K3
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:Can a solar inverter be used with different types of tracking algorithms?
- Yes, a solar inverter can generally be used with different types of tracking algorithms. Solar inverters are designed to convert the direct current (DC) generated by solar panels into alternating current (AC) for use in homes or businesses. The tracking algorithms, such as single-axis or dual-axis tracking, are responsible for optimizing the output of solar panels by adjusting their tilt and orientation according to the sun's position. Solar inverters are typically compatible with various tracking algorithms, allowing flexibility in system design and maximizing energy generation.
- Q:What is the maximum power rating of a solar inverter?
- The maximum power rating of a solar inverter can vary depending on the specific model and manufacturer. However, typical residential solar inverters have power ratings ranging from 1,000 to 10,000 watts, while commercial and utility-scale inverters can have ratings exceeding several hundred kilowatts or even megawatts.
- Q:What is the importance of surge protection in a solar inverter?
- Surge protection is crucial in a solar inverter as it safeguards the system against voltage spikes or power surges. These surges can occur due to lightning strikes, grid fluctuations, or other electrical disturbances, and can potentially damage the sensitive electronics in the inverter. Surge protection devices divert excessive voltage away from the solar inverter, preventing costly damage and ensuring the efficient and uninterrupted operation of the solar power system.
- Q:Can a solar inverter be used with a solar tracker system?
- Yes, a solar inverter can be used with a solar tracker system. In fact, using a solar inverter with a solar tracker system can enhance the overall efficiency and performance of the system. The solar inverter converts the direct current (DC) generated by the solar panels into alternating current (AC) that can be used to power electrical appliances or be fed into the grid. This AC power can then be easily integrated with the solar tracker system to continuously adjust the position and alignment of the solar panels to maximize their exposure to sunlight. Overall, combining a solar inverter with a solar tracker system can optimize the energy generation and increase the overall output of the solar power system.
- Q:What is the purpose of a solar inverter in a solar power system?
- The purpose of a solar inverter in a solar power system is to convert the direct current (DC) electricity produced by the solar panels into alternating current (AC) electricity that can be used to power electrical devices in homes and businesses.
- Q:Can a solar inverter work in low light conditions?
- No, a solar inverter cannot work in low light conditions as it relies on sunlight to generate electricity. Low light conditions result in reduced solar energy, which makes it difficult for the inverter to convert it into usable electricity efficiently.
- Q:Can a solar inverter be used without solar panels?
- No, a solar inverter cannot be used without solar panels. Solar panels are the primary source of energy for a solar inverter, which converts the direct current (DC) generated by the panels into alternating current (AC) that can be used to power electrical devices. Without solar panels, there is no source of renewable energy for the inverter to convert, rendering it useless.
- Q:Can a solar inverter be used with dual MPPT inputs?
- Yes, a solar inverter can be used with dual MPPT (Maximum Power Point Tracking) inputs. This feature allows the inverter to optimize and extract maximum power from two separate solar arrays or panels. By using dual MPPT inputs, the inverter can handle variations in shading, orientation, or different panel specifications, thereby maximizing the overall energy production and efficiency of the solar system.
- Q:How do you calculate the power loss in a solar inverter?
- To calculate the power loss in a solar inverter, you need to subtract the output power from the input power. The input power can be determined by multiplying the input voltage and input current, while the output power is obtained by multiplying the output voltage and output current. Subtracting the output power from the input power will give you the power loss in the solar inverter.
- Q:Can a solar inverter be used in a solar-powered electric vehicle charging station?
- Yes, a solar inverter can be used in a solar-powered electric vehicle charging station. A solar inverter is responsible for converting the direct current (DC) generated by solar panels into alternating current (AC) which is suitable for use in electric vehicles. Therefore, it plays a crucial role in converting the solar energy into electricity that can be used to charge electric vehicles at the charging station.
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Photovoltaic Grid-Connected Inverters SG250K3
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 500000 unit
- Supply Capability:
- 3000000 unit/month
OKorder Service Pledge
OKorder Financial Service
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