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บทความ เกจวัดแรงดัน

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 space experiencing irregular and ever lowering rainfall.
Five low-energy Delta CP2000 frequency drives drive the six underground properly pumps and make certain that the water dropped at the surface is transferred on to the upper tank.
The dairy farm wanted a pump system to access floor water from wells and guarantee a reliable and cost-effective water provide. เกจวัดแรงดันน้ำประปาราคา ’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 several automation products from Delta.
The planned irrigation system comprised two reservoirs at different heights, to be crammed with water by a total of six underground nicely pumps in a single day, when the vitality prices were low. A transport pump is used to transfer water from the lower reservoir to the upper one. The top distinction allows 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 also can take their water supply from this irrigation system. The key necessities of the venture had been cost efficiency and low vitality consumption.
Five low-energy Delta CP2000 frequency drives drive the six underground nicely pumps and make positive that the water delivered to the floor is transferred on to the upper tank. The CP fashions characteristic a PID controller with feedback that enables the water level within the tanks and boreholes to be monitored and corrected. This is done by alternating between the different pumps and regularly monitoring the circulate. If the borehole level falls under a minimum predetermined by the consumer, the PLC control switches to the following 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 value. Five DVP16SP PLCs regulate the motors. One DVP12SE PLC screens the water stage within the top reservoir and the animal watering stations, while an extra DVP controller manages the sprinkler set up. Two human-machine interfaces (HMI) from the DOP-100 collection are used to display all the processes in the system and show system data and warning indicators on a 7 or 15-in contact screen. In-house software program additionally allows the time configuration and power prices to be monitored remotely. Users also can monitor the entire process through the DOP-100 VNC server.
The system is now working with none points and supplies each livestock and crops with enough water, even during periods of low rainfall.
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