Delta delivers environment friendly irrigation to South African farmers

A pumping station powered by Delta CP2000 frequency drives is delivering environment friendly irrigation to a dairy farm in South Africa in an area experiencing irregular and ever reducing rainfall.
Five low-energy Delta CP2000 frequency drives drive the six underground well pumps and ensure that the water dropped at the surface is transferred on to the upper tank.
The dairy farm needed a pump system to access ground water from wells and ensure a reliable and cost-effective water supply. The farm’s proprietor commissioned a suitable system from electrical installation planners, Pienaar Elektries, which specialises in agricultural operations. Following an in-depth planning and consultation course of, Pienaar Elektries opted for a quantity of automation products from Delta.
The deliberate irrigation system comprised two reservoirs at different heights, to be full of water by a total of six underground well pumps overnight, when the energy prices had been low. A transport pump is used to switch water from the lower reservoir to the upper one. The height distinction permits the sprinkler system to be operated using gravity alone through the day, making it significantly environment friendly. The livestock and the dairy also can take their water provide from this irrigation system. The key requirements of the project have been price effectivity and low vitality consumption.
Five low-energy Delta CP2000 frequency drives drive the six underground properly pumps and make positive that the water dropped at the surface is transferred on to the higher tank. เกจแรงดันสูง function a PID controller with suggestions that permits the water stage within the tanks and boreholes to be monitored and corrected. This is completed by alternating between the different pumps and frequently monitoring the circulate. If the borehole stage falls under a minimum predetermined by the person, the PLC control switches to the following the borehole and prevents the pumps from being broken.
The system has various Delta DVP series programmable logic controllers (PLCs). Three DVP04AD PLCs monitor the sensors in boreholes and keep the water stage above the predetermined value. Five DVP16SP PLCs regulate the motors. One DVP12SE PLC displays the water level in the top reservoir and the animal watering stations, while an additional DVP controller manages the sprinkler set up. Two human-machine interfaces (HMI) from the DOP-100 series are used to display all of the processes within the system and show system information and warning indicators on a 7 or 15-in touch display screen. In-house software additionally permits the time configuration and power prices to be monitored remotely. Users can even monitor the whole process through the DOP-100 VNC server.
The system is now working without any points and provides each livestock and crops with adequate water, even in periods of low rainfall.
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