www.nsiwaterug.com Email: info@nsiwaterug.com Phone.+256200 902158 P.O Box 73500 Kampala Uganda

©

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4HS-MP– Solar Powered Borehole Pumps

PUMP :The Nastec 4HS MultiPower pumps (4HS MP), powered by renewable energy sources, is a new range coming from the

4HS pumps with built-in inverter. 4HS MultiPower pumps may be powered by AC or DC with a wide range of operating volt-

age (90 - 265 VAC / 90 - 340 VDC). This means that 4HS MP pumps can be connected to solar panels, batteries, wind turbine

and diesel generator. 4HS pumps are entirely made of stainless steel AISI 304 to grant a long life of the components. Pump,

motor and hydraulic components can be easily disassembled to have simple maintenance and replacement operations.

MOTOR : The 4HS range features an AC permanent magnet motor with a resine and encapsulated stator made of stainless

steel AISI 304 and Water cooled rotor. The built-in electronics inside the motor avoids the use of shielded cables and output

filters and it is the ideal solution for any application in remote locations without surveillance and climatically adverse.

4HS MultiPower pumps do not need of any external electronic component; it is just enough to connect the pump cable to the

power source and start to ex-tract water. The built-in electronic is directly cooled by the water flow; the operating tempera-

ture of the electronic components is so low as to ensure considerably longer a life than a on-surface inverter affected by high

temperature, humidity, dust and solar radiation.

In the application with solar panel, the function MPPT (Maximum Power Point Tracking) maximizes the input power for vari-

ous conditions of radiation and temperature. When radiation grows, pump increases the rotation speed as well as the water

flow.

Integrated on board protection & MPPT

The integrated inverter module realizes the conversion from DC energy into useful electri-cal energy to drive the engine effi-

ciently and, at the same time, adjusts the pump speed in relation to available irradiation, maximizing the power extracted

(MPPT). Protection against overvoltage, overload and dry running are integrated into the pump electronic circuit. Electronic

protection against dry running avoids the use of the probes.

SOLAR MODULES

4 HS MP systems are recommended to be powered by crystalline photo voltaic modules connected in arrays to provide the

power selected. Arrays should be connected to produce at least 40V input voltage with higher voltage of around 100V recom-

mended for maximum efficiency operation.

ACCESSORIES

A complete range of accessories including drop cable, module support structures , pipes and fittings are available for a com-

plete installation.

Pump Output Curves are given at standard test conditions of 1000W/m solar irradiance and 25 C .Output will vary through-

out the year depending upon prevailing irradiation levels. For estimated daily outputs at continuous pumping multiply by the

daily irradiation given in Graph 1(see drawing). For indicative purposes factors of 1.1 can be applied for hot arid areas and 0.9

for temperate high altitude areas in East Africa. Output will vary through out the day as a proportion of the estimated hourly

irradiation as shown in Graph 2.NOTE: Output estimations are strictly indicative. More accurate projections are available using

manufacturers data when the exact site location and installation arrangement is defined.

CM Controller (Optional) : On off control for pump can be achieved without an additional controller for example by using a

float switch. All protections against overload, overvoltage and dry running is integrated into the on board inverter. However if

the pump signal cables are connected to the CM MultiPower control module, it is possible to:

Control the electric parameters (current, power, voltage).

Record and store all the alarms related to the working hours.

Connect a pressure or a flow sensor to control the pump performances.

Connect a pressure or float switch.

Provide an alarm digital output for remote control.

www.nsiwaterug.com Email: info@nsiwaterug.com Phone.+256200 902158 P.O Box 73500 Kampala Uganda

©

NSI

Ltd

20

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All dimensions are in

Model Voltage Max ab-sorbed cur-rent (A)

Max absorbed power P1 (Watts)

Height Delivery DN

Diameter mm

Weight Kg

4HS 05/04 MP 90-340 VDC 16 (100 VDC 1600 879 1½" 101 19.5

4HS 05/08 MP 90-340 VDC 16 (187 VDC 3000 1013 1½" 101 22

4HS 08/03 MP 90-340 VDC 16 (113 VDC 1800 858 1½" 101 19.4

4HS 08/05 MP 90-340 VDC 16 (187 VDC 3000 950 1½" 101 21