4KW IP65 Agricultural Solar Pump Inverter

WP-4K0 Solar Pump Drive
Built by Foshan Top One Power Technology Co., Ltd.

The WP-4K0 is a 4 kW solar pump drive manufactured by Foshan Top One Power Technology Co., Ltd., a company based in Foshan that has been involved in the renewable energy sector since 2003. This unit is part of the WP Series and has been designed specifically for solar-powered pumping applications, such as irrigation, livestock watering, supplying water to remote villages, and even powering decorative fountains where a grid connection is not an option.

The practical reality of solar pumping is that sunlight is variable, but water demand isn't. The WP-4K0 addresses this discrepancy by converting DC from solar panels into AC for submersible or surface pumps, actively adjusting pump speed based on incoming solar power. Bright sun means full speed. Cloud cover means the pump reduces its speed rather than stopping completely. This continuous operation, even at reduced flow, is what makes this approach so much more useful than systems that simply cut out when the sun dips.

In terms of electrical specifications, the WP-4K0 accepts a DC input voltage ranging from 150 V to 800 V, providing flexibility when designing your panel array. The output frequency can be adjusted from 0 to 400 Hz, enabling you to match the pump's performance to the head height and the desired flow rate. The MPPT algorithm operates with better than 99% efficiency, ensuring that no solar energy is wasted.

The WP-4K0 also includes several practical features that improve day-to-day operation. The AC compensation function automatically supplements solar power with grid or generator input when sunlight is insufficient, ensuring the pump runs around the clock. Water level sensors for low water and full tanks prevent dry running and overflow. The IP65-rated drive can be installed outdoors without issue - rain, dust and humidity won't shut it down.

In terms of safety, the WP-4K0 provides protection against overvoltage, undervoltage, overloads and short circuits. It carries CE and ISO 9001 certifications.

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