Siemens Improves Mining Productivity By Creating A Common Platform For Heavy Mining Equipment
ATLANTA -- With the addition of draglines to the mix, Siemens today announced a single drive design platform for virtually all mobile mining equipment used in open pit mines. By providing a single drive platform for draglines, trucks and shovels, Siemens significantly lowers operations, training and maintenance costs.
With more than 140 shovels and 450 trucks operating worldwide using Siemens AC motor drives, Siemens is an industry leader in this technology. Its AC induction motors used in mobile mining equipment provide higher stall torque, faster acceleration and higher speeds in field weakening covering a larger area under the speed/torque curve, which translates into shorter machine cycle times.
Additionally, these latest generation AC drives use the innovative water-cooled Insulated Gate Bipolar Transistor (IGBT) drive system to increase productivity. IGBT technology operates routinely at above 98 percent availability with Mean Time between Failures (MTBF) in the thousands of hours and a Mean Time to Repair (MTTR) of typically less than one hour.
The IGBT inverters, controlled by the latest SIBASTM 32S traction control, transform DC power at a constant voltage into AC power a variable frequency and voltage to drive the excavator and truck motors. Unlike DC motors, AC motors have no brushes or commutators that require maintenance. They also offer a high overload capacity and electronic protection circuits without fuses to greatly increase reliability.
For more information, please go tohttp://www.siemens.com/mining
About Siemens
Siemens Energy & Automation, Inc. is one of Siemens’ operating companies in the U.S. Headquartered in the Atlanta suburb of Alpharetta, Ga., Siemens Energy & Automation, Inc. manufactures and markets one of the world’s broadest ranges of electrical and electronic products, systems and services to industrial and construction market customers. Its technologies range from circuit protection and energy management systems to process control, industrial software and totally integrated automation solutions. The company also has expertise in systems integration, technical services and turnkey industrial systems. For more information:
www.sea.siemens.com.
Siemens AG (NYSE: SI) is a global powerhouse in electronics and electrical engineering, and operates in the industry, energy and healthcare sectors. For more than 160 years, Siemens has built a reputation for leading-edge innovation and the quality of its products, services and solutions. With nearly 400,000 employees in 190 countries, Siemens reported worldwide sales of $96.6 billion in fiscal 2007. With its U.S. corporate headquarters in New York City, Siemens in the USA reported sales of $19.8 billion and employs approximately 70,000 people throughout all 50 states and Puerto Rico. For more information on Siemens in the United States, visit: