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บทความ เกจวัดแรงดัน

Delta delivers environment friendly irrigation to South African farmers

digital pressure gauge 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 decreasing rainfall.
Five low-energy Delta CP2000 frequency drives drive the six underground well pumps and be certain that the water dropped at the surface is transferred on to the higher tank.
ไดอะแฟรม needed a pump system to access floor water from wells and guarantee a reliable and cost-effective water supply. The farm’s proprietor commissioned an appropriate system from electrical set up planners, Pienaar Elektries, which specialises in agricultural operations. Following an in-depth planning and session course of, Pienaar Elektries opted for several automation products 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 overnight, when the energy prices have been low. A transport pump is used to switch water from the decrease reservoir to the higher one. The top difference permits the sprinkler system to be operated using gravity alone in the course of the day, making it notably environment friendly. The farm animals and the dairy can also take their water supply from this irrigation system. The key requirements of the project had been price efficiency and low vitality consumption.
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 CP fashions feature a PID controller with suggestions that enables the water level 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 below a minimal 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 sequence programmable logic controllers (PLCs). Three DVP04AD PLCs monitor the sensors in boreholes and hold the water level above the predetermined value. Five DVP16SP PLCs regulate the motors. One DVP12SE PLC displays 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 series are used to show all of the processes within the system and present system information and warning indicators on a 7 or 15-in contact screen. In-house software program additionally allows the time configuration and vitality prices to be monitored remotely. Users also can monitor the entire course of by way of the DOP-100 VNC server.
The system is now working without any points and supplies each livestock and crops with enough water, even during periods of low rainfall.
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