The 7.5kW AC/DC Solar Submersible Borehole Pump is a heavy-duty solar pumping solution developed for high-capacity water extraction in commercial agriculture, municipal water supply, industrial facilities, and large-scale irrigation systems. Combining advanced permanent magnet motor technology with an intelligent MPPT hybrid inverter, the system delivers exceptional hydraulic performance while significantly reducing operating costs through direct solar operation.

The pump utilizes a high-efficiency brushless permanent magnet synchronous motor that achieves superior efficiency compared to conventional induction motors by eliminating rotor copper losses. This results in improved power factor, lower operating temperatures, increased reliability, and reduced maintenance requirements.

An integrated Maximum Power Point Tracking (MPPT) controller dynamically adjusts operating frequency to match the available photovoltaic power, allowing the pump to begin operation under low irradiance conditions and maintain optimal performance throughout the day. During periods of insufficient solar generation, the controller automatically transfers operation to AC mains without interrupting water production.

The multi-stage centrifugal hydraulic assembly is manufactured from corrosion-resistant stainless steel, ensuring excellent wear resistance and consistent performance in demanding groundwater conditions. Precision-balanced impellers and optimized hydraulic passages maximize efficiency while maintaining stable flow and pressure over extended operating periods.

The intelligent inverter incorporates comprehensive protection functions including dry-running protection, overload protection, locked rotor detection, phase imbalance monitoring, surge protection, over-temperature shutdown, over-voltage and under-voltage protection, ensuring safe and reliable operation in remote unattended installations.

Capable of producing high flow rates at substantial pumping heads, the 7.5kW system is particularly suited for large irrigation networks, municipal water distribution, industrial processing plants, livestock operations, and deep borehole water supply projects where continuous, high-volume pumping is required.

Technical Features

• Rated Motor Power: 7.5kW
• Brushless Permanent Magnet Synchronous Motor (PMSM)
• Intelligent MPPT Solar Pump Inverter
• AC/DC Hybrid Operation
• Variable Frequency Drive (VFD) speed control
• Automatic solar-to-grid switching
• Battery-free solar operation
• High-efficiency multi-stage centrifugal hydraulics
• Stainless steel wet-end components
• High starting torque with low inrush current
• IP68 waterproof submersible motor
• Continuous S1 duty rating
• Integrated protection against dry running, overload, locked rotor, over-current, over-voltage, under-voltage, overheating, and phase failure
• Designed for high-head, high-flow deep borehole applications