1st Quarter 2019Electrical switching & drive systems & components
Operating an irrigation system can be expensive, with one of the primary factors being the cost of energy. However, significant savings can be realised by leveraging available technology to provide an appropriate electric motor and variable speed drive combination that will reduce operating costs while providing reliable performance. WEG IE3 top premium efficiency motors and variable speed drives (VSDs) from Zest WEG will do just that.
For example in a pivot pump application which operates for 4000 hours in a single year – relative to two planting cycles – WEG IE3 top premium efficiency motors not only offer maximum ingress protection with a higher winding insulation system to increase motor life expectancy, but also offer efficiencies of up to 96,6%. Benefits can also be seen when compared against IE1 standard efficiency motors. Using a 22 kW 2 pole at 75% of full load, an IE1 motor with an efficiency of 91%, measured against a WEG IE3 motor with 93% efficiency, has estimated savings of R2100 per year.
Much higher savings can also be realised by using a WEG VSD in combination with a WEG motor. An IE1 electric motor, again operating for 4000 hours per year at 91% efficiency, will consume about R93 800 worth of energy using old technology. The same performance could be achieved using a VSD to reduce the motor speed while reducing the energy absorbed. For a 10% reduction in operational speed using the VSD, further savings of 22% to 27% could be achieved.
Precise detection of complex rotational movements Beckhoff Automation
Electrical switching & drive systems & components
The EP3751-0260 EtherCAT Box module by Beckhoff connects an acceleration sensor with an inertial measurement unit - a gyroscope. This provides accurate detection of acceleration and rotational motion in addition to shock, vibration and tilt measurement, both as preprocessed values and as raw sensor data.
Read more...WEG partners with Panaco in the DRC Zest WEG Group Africa
Editor's Choice News & events
The strengthened presence of WEG in the Democratic Republic of Congo (DRC), through its strategic alliance with ts value-added reseller (VAR) Panaco, has proved to be highly successful.
Read more...Energy management system for electrohydrostatic actuation systems
Electrical switching & drive systems & components
In the machine manufacturing industry, more drive systems are being converted from servo-hydraulic throttle to electrohydrostatic actuation systems. The four-quadrant capability of the electrohydrostatic pump unit and servo drive used in this technology, in combination with the new Moog energy management system, allows regenerative power flows generated during braking or pressure relief to be stored and reused.
Read more...Drive solution for stacker reclaimer
Electrical switching & drive systems & components
Hägglunds Drives South Africa recently completed a retrofit project on the bucket wheel of a stacker reclaimer at Richards Bay Coal Terminal. The project entailed replacing a gearbox drive solution with a direct drive solution from Hägglunds Drives SA.
Read more...Kamoa-Kakula power pack order for SEW-EURODRIVE SEW-EURODRIVE
Electrical switching & drive systems & components
With well over 100 units already delivered, SEW-EURODRIVE is set to continue supplying Ivanhoe Mines’ prestigious Kamoa-Kakula Copper Complex in the Democratic Republic of Congo.
Read more...Seven ways to reduce production downtime on the plant
Electrical switching & drive systems & components
Production downtime is one of the biggest risks in the manufacturing industry. Follow these seven tips to reduce machine downtime in your production line.
Read more...The time is now to implement a motor management strategy Schneider Electric South Africa
Editor's Choice Electrical switching & drive systems & components
Motor management plays an all-important role in controlling motor energy costs in various industries, segments and applications. Research and practical experience have consistently shown that effective motor management practices can result in significant energy savings, reduced operational costs, and improved overall system reliability.
Read more...Rapid overhaul of compressor motors ACTOM
Electrical switching & drive systems & components
Marthinusen & Coutts Zambia was requested by a smelter based in the Copperbelt to provide an in-country repair solution for its two critical 4,5 MW compressor motors. The company was given only three weeks in which to overhaul and commission the motors.
Read more...PC-based motion control on a labelling machine Beckhoff Automation
Editor's Choice Electrical switching & drive systems & components
For 50 years, Bausch+Ströbel in Germany has been developing packaging and production systems for the pharmaceutical industries. The company’s goal is to offer the best technical and economical solutions for the challenges of modern industry. Its new ESA1025 labelling machine shows how this is achieved with PC-based control from Beckhoff as the central motion controller.
Read more...Thrust for hybrid electric flying
Editor's Choice Electrical switching & drive systems & components
Several leading academic institutes in Germany are collaborating on the future of hybrid electric flying. The partners are researching an entirely new propulsion system for medium-range aircraft with up to 35 passengers.
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