Delta delivers environment friendly irrigation to South African farmers

A pumping station powered by Delta CP2000 frequency drives is delivering efficient irrigation to a dairy farm in South Africa in an space experiencing irregular and ever decreasing rainfall.
Five low-energy Delta CP2000 frequency drives drive the six underground properly pumps and ensure that the water dropped at the floor is transferred on to the upper tank.
The dairy farm needed a pump system to access ground water from wells and ensure a dependable and cost-effective water supply. The farm’s proprietor commissioned an acceptable 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 number of automation products from Delta.
The planned irrigation system comprised two reservoirs at completely different heights, to be full of water by a complete of six underground properly pumps in a single day, when the power prices have been low. A transport pump is used to transfer water from the decrease reservoir to the upper one. Untold permits the sprinkler system to be operated utilizing gravity alone through the day, making it particularly environment friendly. The livestock and the dairy can also take their water provide from this irrigation system. The key necessities of the venture were value effectivity and low power consumption.
Five low-energy Delta CP2000 frequency drives drive the six underground well pumps and be certain that the water brought to the floor is transferred on to the higher tank. The CP fashions feature a PID controller with feedback that enables the water stage within the tanks and boreholes to be monitored and corrected. This is completed by alternating between the completely different pumps and frequently monitoring the move. If the borehole level falls under a minimal predetermined by the user, the PLC management switches to the following the borehole and prevents the pumps from being damaged.
The system has varied Delta DVP sequence programmable logic controllers (PLCs). Three DVP04AD PLCs monitor the sensors in boreholes and keep the water stage above the predetermined worth. Five DVP16SP PLCs regulate the motors. One DVP12SE PLC displays the water degree within the prime reservoir and the animal watering stations, whereas an extra DVP controller manages the sprinkler installation. Two human-machine interfaces (HMI) from the DOP-100 sequence are used to display all the processes in the system and present system information and warning indicators on a 7 or 15-in touch display. In-house software program also permits the time configuration and energy costs to be monitored remotely. Users can also monitor the whole process via the DOP-100 VNC server.
The system is now working without any issues and supplies both livestock and crops with adequate water, even during times of low rainfall.
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