Engineering & Mining Journal

JUL 2019

Engineering and Mining Journal - Whether the market is copper, gold, nickel, iron ore, lead/zinc, PGM, diamonds or other commodities, E&MJ takes the lead in projecting trends, following development and reporting on the most efficient operating pr

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ELECTRICAL POWER SYSTEMS JULY 2019 • E&MJ 43 www.e-mj.com DMax TM is our new series of screen panels featuring ultra-high open area. By reducing bridge width between apertures, DMax features more openings on the screen panel surface, which translates to increased product pass-through. Used in concert with with our versatile PipeTop II™ support frame, DMax has proven to be extremely effective. If product pass-through and screening efficiency are the keys to your production goals, DMax and PipeTop II are an unbeatable open area combination. Visit polydeck.com to learn more. is our new series of screen panels featuring ultra-high open area. By reducing bridge width between openings on the screen panel surface, which translates to increased product pass-through. Used in concert with with our versatile has proven to be extremely effective. If product pass-through and screening and NEED MORE OPEN AREA? INCREASE SCREENING EFFICIENCY BY 25% OR MORE eration of power using distributed energy solutions (DES) all the way down to light switches and plugs in the facilities. Dirscherl explained a little about the company's current R&D focus. "At Siemens, we spend one of the largest amounts on R&D in electrical power systems," he said. "This covers the ever-growing customer need for environ- mentally friendly manufactured products that meet the demand for our digital age. Here the subject of the true 'Digital Mine' is now becoming reality. That means ex- panding the digital offering, not only with web-enabled products, but with appli- cations that enable the operating staff to make the right decisions at the right time. Coupled with this, we are driving the cyber security aspects including glob- al standards to ensure connected devices are a benefit and not a threat." He continued: "The integration of re- newable power is another major step for- ward. All of our offerings meet the tough conditions in mines and of course con- form to the local standards and regula- tions such as IEC and ANSI/MEMA." Siemens has expanded its offering this year with solutions covering photo-voltaic, storage and e-vehicle charging. "With this we expanded our off-grid application of- fering, while supporting the trend toward electric vehicles. This is part of our 'Fu- ture Grids' group," Discherl said. Siemens also launched the Sens- former advanced power transformer, which Dirscherl described as "born con- nected." That means all the necessary data needed for showing the condition of the transformer as well as quality of the power is available at the touch of a but- ton. The cloud-based energy analytics solution, in which the power consump- tion of different processes is analyzed, enables energy cost reductions and also benchmarking across plants globally for best-practice sharing. Siemens recently supplied the com- plete electrical distribution system, in- cluding e-houses, MCC panel, lighting panels, and a large number of variable sulfide expansion project in Erzincan, Turkey. The company is also undertaking the engineering, design, production and sup- ply of electrical equipment for the Oyu Tol- goi copper mine conveyor system. The de- livery comprises the new conveyor system with gearless and conventional drives from thyssenkrupp Industrial Solutions, and is expected to carry more than 95,000 tons per day of copper ore to the surface. Siemens is supplying thyssenkrupp with state-of-the-art electrical equip- ment consisting of 8DA10 (gas-insu- lated) and NX-AIR (air-insulated) me- dium-voltage switchgear, transformers, low-voltage energy distribution, Sinam- ics SL 150 and Sinamics S150 frequen- cy converters as well as low-speed syn- chronous motors with a nominal power of 5.5 megawatts, and smaller squirrel cage induction motors. The delivery also includes pre-assembled e-houses for in- stalling the equipment as well as power factor correction and harmonic filtering equipment. To fulfill the requirements of the underground environment the di- mensions of the e-houses were reduced to an absolute minimum.

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