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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 reducing rainfall.
Five low-energy Delta CP2000 frequency drives drive the six underground nicely pumps and be positive that the water dropped at the surface 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 provide. The farm’s proprietor commissioned an appropriate system from electrical installation planners, Pienaar Elektries, which specialises in agricultural operations. Following an in-depth planning and session process, Pienaar Elektries opted for a quantity of automation products from Delta.
The deliberate irrigation system comprised two reservoirs at totally different heights, to be filled with water by a complete of six underground nicely pumps in a single day, when the power costs were low. A transport pump is used to switch water from the decrease reservoir to the upper one. The height distinction permits the sprinkler system to be operated utilizing gravity alone through the day, making it significantly environment friendly. The cattle and the dairy also can take their water supply from this irrigation system. The key requirements of the challenge have been cost effectivity 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 surface is transferred on to the higher tank. The CP models characteristic a PID controller with feedback that allows the water stage within the tanks and boreholes to be monitored and corrected. This is done by alternating between the completely different pumps and frequently monitoring the move. If the borehole level falls under a minimal 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 sequence programmable logic controllers (PLCs). Three DVP04AD PLCs monitor the sensors in boreholes and maintain the water degree above the predetermined value. Five DVP16SP PLCs regulate the motors. เกจวัดแรงดัน300psi in the prime reservoir and the animal watering stations, whereas an additional DVP controller manages the sprinkler installation. Two human-machine interfaces (HMI) from the DOP-100 sequence are used to display all of the processes within the system and show system info and warning indicators on a 7 or 15-in contact display. In-house software program additionally permits the time configuration and energy 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 issues and provides each livestock and crops with sufficient water, even in periods of low rainfall.
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