A pumping station powered by Delta CP2000 frequency drives is delivering efficient irrigation to a dairy farm in South Africa in an area experiencing irregular and ever lowering rainfall.
Five low-energy Delta CP2000 frequency drives drive the six underground nicely 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 reliable and cost-effective water supply. The farm’s proprietor commissioned an acceptable system from electrical set up planners, Pienaar Elektries, which specialises in agricultural operations. Following an in-depth planning and consultation course of, Pienaar Elektries opted for several automation products from Delta.
The planned irrigation system comprised two reservoirs at totally different heights, to be crammed with water by a total of six underground nicely pumps in a single day, when the energy prices have been low. A transport pump is used to transfer water from the lower reservoir to the higher one. เพรสเชอร์เกจวัดแรงดันน้ำ allows the sprinkler system to be operated using gravity alone in the course of the day, making it notably environment friendly. The livestock and the dairy also can take their water provide from this irrigation system. The key necessities of the project were cost efficiency and low power consumption.
Five low-energy Delta CP2000 frequency drives drive the six underground nicely pumps and make positive that the water dropped at the floor is transferred on to the higher tank. The CP fashions characteristic a PID controller with suggestions that permits the water level in the tanks and boreholes to be monitored and corrected. This is done by alternating between the totally different pumps and continually monitoring the move. If the borehole degree falls beneath a minimal predetermined by the user, the PLC management switches to the subsequent the borehole and prevents the pumps from being broken.
The system has varied Delta DVP series programmable logic controllers (PLCs). Three DVP04AD PLCs monitor the sensors in boreholes and maintain the water level above the predetermined worth. Five DVP16SP PLCs regulate the motors. One DVP12SE PLC monitors the water stage in the prime reservoir and the animal watering stations, while an additional DVP controller manages the sprinkler installation. Two human-machine interfaces (HMI) from the DOP-100 sequence are used to show all the processes within the system and show system information and warning indicators on a 7 or 15-in contact screen. In-house software additionally permits the time configuration and vitality costs to be monitored remotely. Users can even monitor the complete process by way of the DOP-100 VNC server.
The system is now working without any points and supplies both livestock and crops with enough water, even during periods of low rainfall.
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