UPS as Solar Inverter Photovoltaic Grid-Connected Inverters SG250K3
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- 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: How does MPPT technology work in solar inverters?
- MPPT (Maximum Power Point Tracking) technology in solar inverters works by continuously adjusting the operating voltage and current of the solar panels to ensure the maximum power output. It does this by constantly monitoring the voltage and current of the solar panels and finding the optimal point (maximum power point) at which the panels can deliver the most power. This is achieved by varying the load on the panels to match their impedance with the maximum power point. MPPT technology maximizes the efficiency of solar power generation by extracting the maximum available power from the panels under varying environmental conditions such as shading, temperature changes, and panel degradation.
- Q: Can a solar inverter be used in a three-phase power system?
- Yes, a solar inverter can be used in a three-phase power system. In fact, three-phase solar inverters are commonly used in commercial and industrial applications where the power demand is higher. These inverters are designed to convert the direct current (DC) generated by solar panels into alternating current (AC) that is compatible with a three-phase power system.
- Q: Can a solar inverter be used with other renewable energy sources like wind or hydro power?
- Yes, a solar inverter can be used with other renewable energy sources like wind or hydro power. Inverters are designed to convert the direct current (DC) generated by various renewable energy sources into alternating current (AC) that can be used to power homes, buildings, or be fed into the grid. So, by connecting a wind turbine or hydro generator to a solar inverter, it can efficiently convert the generated energy for practical use.
- Q: Are there any fire safety concerns associated with solar inverters?
- Solar inverters do pose some fire safety concerns. Although they are not typically a fire hazard themselves, there are a few potential risks to be aware of. Firstly, if the solar inverter is installed incorrectly, it can cause electrical problems that may lead to a fire. To prevent this, it is essential to hire a qualified and certified professional who can ensure that all electrical connections are secure and meet the necessary standards. Secondly, if the solar inverter is located in an area that experiences high temperatures or excessive heat, there is a risk of overheating. Inverters generate heat as they convert direct current (DC) from solar panels into alternating current (AC) for use in homes or businesses. If the inverter is not adequately ventilated or is exposed to extreme heat, it can overheat and potentially ignite a fire. Furthermore, if the inverter is faulty or damaged, it can increase the risk of fire. Regular maintenance and inspections of the solar inverter can help identify any potential issues and ensure its safe operation. To address these fire safety concerns, it is crucial to adhere to proper installation guidelines, regularly inspect and maintain the inverter, and ensure it is in a well-ventilated location away from sources of excessive heat. It is also advisable to have a fire extinguisher nearby and establish a fire safety plan in case of emergencies.
- Q: What is the role of a grid monitoring feature in a solar inverter?
- The role of a grid monitoring feature in a solar inverter is to constantly monitor the electrical grid to ensure that the solar power generated by the inverter is synchronized with the grid's voltage and frequency. This feature enables the inverter to safely and efficiently inject solar power into the grid, while also providing protection against grid faults and ensuring compliance with grid regulations.
- Q: What is the role of a DC-DC converter in a solar inverter?
- The role of a DC-DC converter in a solar inverter is to convert the direct current (DC) power produced by the solar panels into the appropriate voltage and current levels required to feed into the alternating current (AC) grid. This conversion ensures efficient power transfer from the solar panels to the electrical grid, enabling the solar energy to be used for various applications or to be stored in batteries.
- Q: Can a solar inverter be used with solar-powered water purification systems?
- Yes, a solar inverter can be used with solar-powered water purification systems. A solar inverter is responsible for converting the direct current (DC) power generated by solar panels into the alternating current (AC) power required for most electrical devices. Since water purification systems often require AC power to operate, integrating a solar inverter allows the system to utilize the energy harnessed from solar panels efficiently.
- Q: How does a solar inverter interact with a battery storage system?
- A solar inverter interacts with a battery storage system by converting the direct current (DC) electricity generated by the solar panels into alternating current (AC) electricity that can be used to power homes and businesses. It also manages the flow of electricity between the solar panels, the battery storage system, and the electrical grid. When the solar panels produce more electricity than is being used, the excess energy is stored in the battery system for later use. Conversely, when the solar panels do not generate enough electricity to meet the demand, the inverter draws power from the battery storage system to supplement the shortfall. This interaction ensures a continuous and reliable power supply from solar energy, even during periods of low sunlight or high energy demands.
- Q: How does the power factor correction affect the performance of a solar inverter?
- Power factor correction can significantly improve the performance of a solar inverter. By correcting the power factor, the inverter can optimize the energy conversion process, resulting in increased efficiency and reduced losses. This correction helps in minimizing reactive power, improving voltage stability, and enhancing the overall power quality of the inverter. Ultimately, power factor correction ensures that the solar inverter operates at its maximum capacity, leading to improved performance and increased energy output.
- Q: How does a solar inverter handle voltage flicker?
- A solar inverter handles voltage flicker by constantly monitoring the grid voltage and adjusting its output to maintain a stable voltage. It uses advanced control algorithms to quickly respond to fluctuations and minimize the impact of voltage flicker on the connected devices.
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UPS as Solar Inverter Photovoltaic Grid-Connected Inverters SG250K3
- Ref Price:
-
- 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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