• String Grid-Tied PV Inverter KSG-200UH/ KSG-250UH System 1
  • String Grid-Tied PV Inverter KSG-200UH/ KSG-250UH System 2
  • String Grid-Tied PV Inverter KSG-200UH/ KSG-250UH System 3
  • String Grid-Tied PV Inverter KSG-200UH/ KSG-250UH System 4
  • String Grid-Tied PV Inverter KSG-200UH/ KSG-250UH System 5
String Grid-Tied PV Inverter KSG-200UH/ KSG-250UH

String Grid-Tied PV Inverter KSG-200UH/ KSG-250UH

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
50 pc
Supply Capability:
15000 pc/month

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Item specifice

Output Power:
200KW/250KW
Inveter Efficiency:
98.52%-99.01%
Output Voltage(V):
800
Input Voltage(V):
1080
Output Current(A):
126.3A/162.4A
Output Frequency:
50/60Hz±5Hz

Product Description:

1500Vdc, 800Vac 12 MPP Tracker,  24 PV Strings Input

Smart I/V Curve Function DC and AC Type II SPD

Optional AFCI Function Optional Night SVG Function

PLC communication Max. DC/AC ratio >1.5

Technical Specifications:


FAQ:

Q:How the output voltage of the PV inverter and the grid-connected voltage are determined

Inverter is the DC power (battery, battery) into alternating current (usually 220V, 50Hz sine wave). It consists of inverter bridge, control logic and filter circuit. Widely used in air conditioning, home theater, electric wheel, power tools, sewing machines, DVD, VCD, computer, TV, washing machine, range hood, refrigerator, video recorders, massage, fan, lighting and so on. In foreign countries

Q:Installation and maintenance of photovoltaic grid - connected inverter

only when the local power sector permission by the professional and technical personnel to complete all the electrical connection before the inverter can be connected.

Q:What is the difference between a PV grid-connected inverter and an off-grid inverter?

Off-grid inverter is equivalent to their own to establish an independent small power grid, mainly to control their own voltage, is a voltage source.

Q:After the PV inverter, how to achieve the same period before the network?

Solar panel simulator: with MPPT function, simulated morning, noon, afternoon, evening, rainy weather, solar panels produced under different conditions in different voltages.

Q:Is the PV inverter a current source or a voltage source?

According to the waveform modulation method can be divided into square wave inverter, stepped wave inverter, sine wave inverter and modular three-phase inverter.

Q:Photovoltaic grid-connected inverter without DC emc how will happen

Solar photovoltaic power generation technology is the use of solar cells, the photovoltaic effect of semiconductor materials, solar radiation can be directly converted into a new type of power generation system, solar energy is a radiant energy, solar power means --- to direct conversion of sunlight Into electricity,

Q:What is the difference between low voltage grid connection and medium voltage grid connection?

For photovoltaic power plants when the power system accidents or disturbances caused by photovoltaic power plant grid voltage drop, in a certain voltage drop range and time interval, the photovoltaic power plant can ensure that non-off-line continuous operation.

Q:Is the grid side of the grid and the inverter?

The grid load side of the grid is the grid. The inverter is an important part of the PV grid-connected system and can not be regarded as an external load. Photovoltaic power generation system is included in both grid and off-grid.

Q:PV grid-connected inverter and independent inverter in the control of what is the difference

The independent inverter in the output voltage phase amplitude of the frequency control is initially set good. Independent inverter, you should refer to off-grid inverter, do not need to consider the grid situation.


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Production Process Photos:




Q:What are the advantages of using a transformerless solar inverter?
One advantage of using a transformerless solar inverter is increased efficiency. Transformerless inverters have a higher efficiency rating compared to inverters with transformers, which means more of the solar energy is converted into usable electricity. Additionally, transformerless inverters are lighter and more compact, making them easier to install and transport. They also tend to have a longer lifespan and require less maintenance compared to inverters with transformers.
Q:How does a solar inverter affect the overall system reliability?
A solar inverter plays a crucial role in the overall system reliability of a solar power system. It converts the direct current (DC) generated by solar panels into alternating current (AC) that is compatible with the electrical grid. By efficiently and accurately converting the power, a high-quality solar inverter ensures optimal energy production and grid integration. It also helps in voltage regulation, frequency control, and protection against grid faults. Therefore, a well-functioning and reliable solar inverter significantly enhance the overall system reliability, maximizing the overall efficiency and longevity of the solar power system.
Q:How does a solar inverter prevent reverse current flow?
A solar inverter prevents reverse current flow by using built-in diodes that act as one-way valves, allowing electricity to flow only in the desired direction from the solar panels to the grid or battery system.
Q:Can a solar inverter be used in areas with high levels of lightning activity?
Yes, a solar inverter can be used in areas with high levels of lightning activity. However, it is important to ensure proper installation and grounding measures are in place to protect the inverter from potential damage caused by lightning strikes.
Q:Can a solar inverter be easily integrated into an existing electrical system?
Yes, a solar inverter can be easily integrated into an existing electrical system. Solar inverters are designed to seamlessly connect with the existing electrical infrastructure of a building or property. They can be installed alongside the main electrical panel and connected to the grid, allowing the solar energy generated by the panels to be converted into usable electricity for the building's consumption. With the help of a qualified electrician or solar installer, the integration process can be straightforward and efficient.
Q:Can a solar inverter be used with different types of energy storage systems?
Yes, a solar inverter can be used with different types of energy storage systems. Solar inverters are designed to convert the direct current (DC) electricity produced by solar panels into alternating current (AC) electricity that can be used in homes and businesses. They can be connected to various types of energy storage systems, such as batteries, supercapacitors, or even grid-connected systems, allowing for efficient storage and utilization of solar energy.
Q:How does a solar inverter handle variations in grid frequency?
A solar inverter handles variations in grid frequency by continuously monitoring the frequency of the grid and adjusting its output accordingly. It is designed to synchronize with the grid frequency and maintain a stable and consistent output, even when the grid frequency fluctuates. This helps to ensure that the solar energy generated is efficiently fed into the grid, without causing any disruption or damage to the inverter or the grid itself.
Q:How does a solar inverter communicate with other devices in a solar power system?
Various communication protocols and interfaces facilitate the interaction between a solar inverter and other devices in a solar power system. One commonly used method involves wired connections, where communication interfaces like RS485 or Ethernet establish a direct link between the inverter and devices like solar panels, batteries, and monitoring systems. In addition to wired connections, wireless communication methods are also employed. Technologies such as Wi-Fi, Zigbee, or Bluetooth allow the inverter to establish connections with nearby devices. This wireless communication primarily serves monitoring and control functions, granting users remote access to manage their solar power system. Effective communication between the solar inverter and other devices is pivotal for optimal performance and efficiency of the solar power system. Vital data, including voltage, current, and temperature, is transmitted from the solar panels to the inverter. This information is critical for achieving optimal power conversion, as the inverter adjusts its operations based on these readings to maximize power output and ensure system safety. Moreover, communication with devices like batteries enables the solar inverter to efficiently manage charging and discharging cycles, optimizing energy storage and utilization. This ensures that surplus energy generated by the solar panels is effectively stored in the batteries and utilized during periods of low sunlight. In conclusion, the communication capabilities of a solar inverter are essential for integrating and coordinating various components within a solar power system. They enable efficient power conversion, monitoring, and control, ultimately maximizing the performance and advantages of solar energy generation.
Q:What is the maximum number of MPPT inputs in a solar inverter?
The maximum number of MPPT inputs in a solar inverter can vary depending on the model and manufacturer. However, it is common to find solar inverters with a maximum of two or four MPPT inputs.
Q:How does a solar inverter handle voltage and frequency variations caused by switching operations?
Through its built-in control mechanisms and advanced technology, a solar inverter is specifically designed to handle voltage and frequency variations resulting from switching operations. When connected to the grid, the solar inverter actively monitors the grid's voltage and frequency, and adjusts its operation accordingly to ensure stability and safety. When voltage variations occur due to switching operations, a solar inverter typically employs a voltage control mechanism. This mechanism continuously monitors the grid's voltage level, and accordingly adjusts the inverter's output voltage to match the grid voltage. If the grid voltage exceeds or falls below a specific threshold, the inverter automatically compensates by adjusting its output voltage to maintain a stable level. Similarly, for frequency variations caused by switching operations, a solar inverter utilizes a frequency control mechanism. This mechanism constantly monitors the grid's frequency and adjusts the inverter's output frequency to match the grid's frequency. If the grid's frequency deviates from the standard, the inverter promptly responds by adjusting its output frequency to ensure synchronization with the grid. To achieve precise control, solar inverters often integrate advanced digital signal processing algorithms and sophisticated control systems. These algorithms and control systems analyze the voltage and frequency signals from the grid, and based on predefined parameters, swiftly make adjustments to the inverter's output. This ensures compatibility with the grid and promotes seamless integration. Ultimately, the primary objective of a solar inverter is to seamlessly integrate with the grid, providing a stable, reliable, and efficient power supply. By effectively managing voltage and frequency variations resulting from switching operations, the inverter plays a crucial role in maintaining the overall stability and resilience of the grid. This allows for optimal utilization of solar energy and contributes to a sustainable energy future.

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