Working Principle
The GD20-015G-4 utilises Maximum Power Point Tracking (MPPT) to extract the maximum available power from the PV array at any given solar irradiance and temperature. The inverter continuously adjusts the operating voltage and current to match the pump’s load characteristics. When solar power is insufficient, the system slows the pump motor to maintain a minimum operating speed, or stops it entirely if the PV voltage drops below the threshold. If grid or generator backup is connected, the inverter seamlessly switches to AC input to maintain constant water flo
Key Features and Benefits
1. Hybrid Power Input
The ability to operate from a single-phase 220 V AC supply while providing a three-phase 380 V output is advantageous in rural areas where three-phase grid power is unavailable. The inverter can be configured to prioritise solar power and automatically fall back to AC mains or a diesel generator when solar energy is insufficient (e.g., at night or during prolonged cloudy periods). This ensures 24/7 water supply without manual interventio
Key Features and Protections
One of the primary advantages of the GD20-015G-4 is its solar-ready design. When used in a photovoltaic system, the inverter automatically performs Maximum Power Point Tracking to extract the maximum available energy from the solar panels. This ensures the pump receives as much power as possible under varying irradiance conditions, thereby maximizing water output during the day. The inverter also handles the soft-start and soft-stop of the pump, eliminating water hammer and mechanical stress on the piping and impeller. Sleep and wake-up functions are included to prevent the pump from running dry during low-light period
Applications
The GD20-015G-4 is most commonly employed in solar-powered water pumping for irrigation, livestock watering, and community water supply. It can power centrifugal pumps, submersible pumps, and surface pumps with motor ratings up to 15 kW. Typical installations include drip irrigation systems, where speed control allows precise water dosage; deep well pumps for drinking water; and fountain or circulation pumps in decorative and aquaculture applications. Because the inverter can accept both solar and single-phase grid inputs, it is also attractive for retrofit projects where an existing three-phase pump is to be repurposed for renewable energy use without replacing the moto
A typical solar inverter pump system comprises three main components: the PV array, the inverter (or variable frequency drive), and the pump–motor unit. The PV array, composed of multiple solar modules, captures sunlight and generates direct current (DC). The inverter is the intelligence of the system. In modern systems, it is usually a solar pump inverter that performs three critical functions: DC-to-AC conversion, maximum power point tracking (MPPT), and variable frequency output. MPPT ensures that the PV array operates at its optimal voltage and current point to extract the maximum available power under any irradiance level. The inverter then adjusts the output frequency (and thus the pump’s motor speed) to match the available power. This is essential because solar irradiance fluctuates throughout the day; without an inverter, a pump would be prone to stalling or inefficient operation. The pump–motor unit is typically a three-phase AC induction motor or a brushless DC motor, coupled to a centrifugal or screw pump. Submersible pumps are common for boreholes, while surface pumps are used for ponds or tanks.
Solar Array Sizing: As a rule, the PV array should be oversized by 20–30% relative to the pump’s rated power to compensate for losses and low-light conditions. For a 2 HP pump, use 3–4 kWp of solar panels.
Orientation and Tilt: Panels should face true south (in the northern hemisphere) or true north (southern hemisphere) with a tilt angle equal to the latitude. Avoid shading from trees, buildings, or other obstructions.
Cabling: Use appropriately sized DC and AC cables to minimize voltage drop. The inverter should be mounted close to the pump, but can be located up to several hundred meters away if cables are sized correctly.
Cooling and Ventilation: The inverter generates heat. It should be mounted in a shaded, well-ventilated area, protected from rain and direct sunlight. Many units are IP65-rated for outdoor installation.
Grounding and Lightning Protection: Proper grounding of the PV frame and inverter is essential. Surge protection devices (SPDs) are recommended in areas prone to lightnin
Conclusion
The GD20-015G-4 solar pumping inverter is a versatile and robust solution for converting single-phase 220 V AC or solar DC input into three-phase 380 V AC to drive 15 kW water pumps. Its hybrid input capability, advanced MPPT, protective features, and easy commissioning make it an excellent choice for agricultural and rural water-supply projects. With proper installation and routine maintenance, this inverter offers reliable and economically attractive operation in both grid-connected and off-grid scenario
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The GD20-015G-4 utilises Maximum Power Point Tracking (MPPT) to extract the maximum available power from the PV array at any given solar irradiance and temperature. The inverter continuously adjusts the operating voltage and current to match the pump’s load characteristics. When solar power is insufficient, the system slows the pump motor to maintain a minimum operating speed, or stops it entirely if the PV voltage drops below the threshold. If grid or generator backup is connected, the inverter seamlessly switches to AC input to maintain constant water flo
Key Features and Benefits
1. Hybrid Power Input
The ability to operate from a single-phase 220 V AC supply while providing a three-phase 380 V output is advantageous in rural areas where three-phase grid power is unavailable. The inverter can be configured to prioritise solar power and automatically fall back to AC mains or a diesel generator when solar energy is insufficient (e.g., at night or during prolonged cloudy periods). This ensures 24/7 water supply without manual interventio
Key Features and Protections
One of the primary advantages of the GD20-015G-4 is its solar-ready design. When used in a photovoltaic system, the inverter automatically performs Maximum Power Point Tracking to extract the maximum available energy from the solar panels. This ensures the pump receives as much power as possible under varying irradiance conditions, thereby maximizing water output during the day. The inverter also handles the soft-start and soft-stop of the pump, eliminating water hammer and mechanical stress on the piping and impeller. Sleep and wake-up functions are included to prevent the pump from running dry during low-light period
Applications
The GD20-015G-4 is most commonly employed in solar-powered water pumping for irrigation, livestock watering, and community water supply. It can power centrifugal pumps, submersible pumps, and surface pumps with motor ratings up to 15 kW. Typical installations include drip irrigation systems, where speed control allows precise water dosage; deep well pumps for drinking water; and fountain or circulation pumps in decorative and aquaculture applications. Because the inverter can accept both solar and single-phase grid inputs, it is also attractive for retrofit projects where an existing three-phase pump is to be repurposed for renewable energy use without replacing the moto
A typical solar inverter pump system comprises three main components: the PV array, the inverter (or variable frequency drive), and the pump–motor unit. The PV array, composed of multiple solar modules, captures sunlight and generates direct current (DC). The inverter is the intelligence of the system. In modern systems, it is usually a solar pump inverter that performs three critical functions: DC-to-AC conversion, maximum power point tracking (MPPT), and variable frequency output. MPPT ensures that the PV array operates at its optimal voltage and current point to extract the maximum available power under any irradiance level. The inverter then adjusts the output frequency (and thus the pump’s motor speed) to match the available power. This is essential because solar irradiance fluctuates throughout the day; without an inverter, a pump would be prone to stalling or inefficient operation. The pump–motor unit is typically a three-phase AC induction motor or a brushless DC motor, coupled to a centrifugal or screw pump. Submersible pumps are common for boreholes, while surface pumps are used for ponds or tanks.
Solar Array Sizing: As a rule, the PV array should be oversized by 20–30% relative to the pump’s rated power to compensate for losses and low-light conditions. For a 2 HP pump, use 3–4 kWp of solar panels.
Orientation and Tilt: Panels should face true south (in the northern hemisphere) or true north (southern hemisphere) with a tilt angle equal to the latitude. Avoid shading from trees, buildings, or other obstructions.
Cabling: Use appropriately sized DC and AC cables to minimize voltage drop. The inverter should be mounted close to the pump, but can be located up to several hundred meters away if cables are sized correctly.
Cooling and Ventilation: The inverter generates heat. It should be mounted in a shaded, well-ventilated area, protected from rain and direct sunlight. Many units are IP65-rated for outdoor installation.
Grounding and Lightning Protection: Proper grounding of the PV frame and inverter is essential. Surge protection devices (SPDs) are recommended in areas prone to lightnin
Conclusion
The GD20-015G-4 solar pumping inverter is a versatile and robust solution for converting single-phase 220 V AC or solar DC input into three-phase 380 V AC to drive 15 kW water pumps. Its hybrid input capability, advanced MPPT, protective features, and easy commissioning make it an excellent choice for agricultural and rural water-supply projects. With proper installation and routine maintenance, this inverter offers reliable and economically attractive operation in both grid-connected and off-grid scenario
When you loved this post along with you desire to receive more info with regards to Newpro Solar Pump Inverter kindly check out the web-site.
