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.
เครื่องวัดแรงดันเกจที่นิยมใช้ -energy Delta CP2000 frequency drives drive the six underground well pumps and ensure that the water brought to the surface is transferred on to the higher tank.
The dairy farm needed a pump system to access ground water from wells and ensure a dependable and cost-effective water provide. เครื่องมือที่ใช้วัดความดัน ’s owner 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 a number of automation merchandise from Delta.
The deliberate irrigation system comprised two reservoirs at completely different heights, to be crammed with water by a complete of six underground nicely pumps in a single day, when the power prices have been low. A transport pump is used to switch water from the lower reservoir to the upper one. The peak distinction allows the sprinkler system to be operated utilizing gravity alone during the day, making it significantly environment friendly. The farm animals and the dairy also can take their water supply from this irrigation system. The key requirements of the project were price effectivity and low power consumption.
Five low-energy Delta CP2000 frequency drives drive the six underground properly pumps and make sure that the water dropped at the surface is transferred on to the upper tank. The CP models feature a PID controller with feedback that permits the water degree in the tanks and boreholes to be monitored and corrected. This is finished by alternating between the totally different pumps and regularly monitoring the move. If the borehole level falls beneath a minimal predetermined by the consumer, the PLC control switches to the subsequent the borehole and prevents the pumps from being damaged.
The system has numerous Delta DVP series programmable logic controllers (PLCs). Three DVP04AD PLCs monitor the sensors in boreholes and maintain the water stage above the predetermined value. Five DVP16SP PLCs regulate the motors. One DVP12SE PLC monitors the water level in the top reservoir and the animal watering stations, while a further DVP controller manages the sprinkler set up. Two human-machine interfaces (HMI) from the DOP-100 sequence are used to display all the processes in the system and present system info and warning indicators on a 7 or 15-in contact screen. In-house software program additionally permits the time configuration and vitality prices to be monitored remotely. Users can also monitor the complete course of via the DOP-100 VNC server.
The system is now working without any points and supplies each livestock and crops with sufficient water, even during times of low rainfall.
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