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+260 977 589 751 | +260 967 208 005


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Solar Water Pumping

The two main two types of solar pumps are: (1) centrifugal pumps and (2) pumps with screw type impellers. Centrifugal pumps are more suitable for high-flow, low-head application while screw type pumps are more suitable for low-flow, high-head applications.

The two main types of pump electric motors are AC induction motors and brushless DC motor (BLDC). AC-induction motors require a solar pump inverter, which varies the speed of the motor to match the available solar energy. BLDC motors on the other hand use an electronic controller to create a rotating magnetic field in the stator which produces a torque to drive the permanent magnet rotor.
Sunray supplies both types of pumps and motors. 
Sunray also supplies Solar AC Pump Inverters

Advantages of using AC pumps with a solar inverter are:

    AC pump motors are more readily available than DC pump motors.
    AC pump motors cover a larger range of sizes compared to DC pump motors.
    AC pump motors are usually cheaper than DC pump motors.

Another advantage of AC motor solar inverters is that they can be used to convert existing AC pump installations to a solar or hybrid powered installation.

We supply a wide range of solar inverters for AC pumps

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INVT GD100-PV Series

Solar Water Pump Inverters

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Key Features

    Comprehensive voltage and power range: Support single phase/three phase 220V, and three phase 380V solar water pump VFD, ranging from 0.4kW to 110kW.
    Multiple protection measures: Protection functions include PV over-voltage protection, PV polarity reverse connection alarm, over-temperature automatic derating, etc., which can effectively extend the life of the product.
    Advanced MPPT algorithm: High MPPT tracking efficiency approaching 99%.
    GPRS remote monitoring: Supports optional GPRS module, which can be used to remotely monitor the performance of the pump.
    Optional boost module that increases solar input voltage to better match the MPPT (only for models smaller than 2.2 kW).
    IP54 grade cabinet solutions.

Range of available models

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Voltage ranges of different models

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Download Data Sheet
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INVT BPD Series

Solar Water Pump Inverters

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Key Features

    BPD range covers both 220V (single-phase & 3-phase) and 380V 3-phase pumps.
    High MPPT efficiency approaching 99%.
    Built-in boost module to increase input PV array voltage, resulting in wider choice of PV panels.
    Support GPRS module for remote control through an APP.
    IP65 protection with fan less cooling.
    Multiple protection functions to extend service life, such as over-voltage protection, PV polarity reverse warning and auto-derating against over-temperature.
    Optional auto AC/Solar input switching available on larger models (> 0.75 kW).

Range of available models and specifications

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Download User ManualDownload Product Leaflet
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INVT SP100 Series

Solar Water Pump Inverters

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Key Features

    Wide input voltage range, more flexible configuration of solar panels.
    Various protection functions such as anti-dry pumping, overload, overcurrent, overvoltage, undervoltage and overheating.
    Long power cable: support the motor cable length up to 200 m without reactor.
    MPPT efficiency of ≥ 99%
    Mature and stable motor control algorithm.
    IPP66 protection level - dust and waterproof, no need for distribution cabinet, low requirements on the installation site, can be directly installed on the solar panel bracket.
    Built-in DC switch.
    Auto/DC switching for models that support AC input.

Abbreviated specifications

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Product Model

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Download User ManualDownload Catalog

Sizing a Solar Pump

When sizing a solar pump, the following information is required

H1 = Depth below ground of water levelH2 = Height of tank stand base above borehole outletH3 = Height of tank standH4 = Height of water inlet above base of tankHs = Depth to water pump outletHy = Total static head = H1 + H2 + H3 + HaLe = Total pipe length from pump outlet to outlet in tankDi = Pipe inside diameter

When sizing a solar pump system, the major parameters which should be specified are: HT, Di and Sp together with the following:
QT = required daily delivery (L/day)SH = average daily sun-hours (typically between 4 and 5 hours for sub-Saharan Africa)N = number of pipe fittings such as elbows, etc.Ƞh = pump hydraulic efficiency (typically between 40% & 60%)

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Solar Pump Quick Sizing Tool

Sunray has developed a spreadsheet tool to quickly estimate the motor and solar array size of a solar pump installation here.

Download Solar Pump Quick Sizing Tool (V1.0)

For more accurate sizing and request for quotation please complete the attached spreadsheet and email to Sunray.

Not sure which Solar Water Pumpis right for you?

Get in touch with one of our experts to find the perfect solution!

Get In Touch
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Sunray Power Company Limited, a Zambian-owned firm, offers integrated solar solutions, enhancing socio-economic development by providing accessible, reliable, and clean electricity across Zambia and neighboring regions.

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Stand Nr. 3, Chamba Valley Shopping Mall, Munali Rd. Chamba Valley,Lusaka, 10101, Zambia

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Illustration

Sunray Power Company Limited, a Zambian-owned firm, offers integrated solar solutions, enhancing socio-economic development by providing accessible, reliable, and clean electricity across Zambia and neighboring regions.

Quick Links

Visit Us

Stand Nr. 3, Chamba Valley Shopping Mall, Munali Rd. Chamba Valley,Lusaka, 10101, Zambia

Newsletter

Subscribe now to stay updated on our promotions, give aways and trainings. 

Sign Me Up!

Website by Cloudfusion

© All rights Reserved