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Traction power systems reliability concepts Sagareli, S. Rail Conference, 2004. Proceedings of the 2004 ASME/IEEE Joint Volume , Issue , 6-8 April 2004 Page(s): 35 - 39 Digital Object Identifier 10.1109/RRCON.2004.1300898 ... Summary: Reliability of a traction power system may be defined as its ability to continuously supply electrical power of adequate quality during sudden disturbances such as a short circuit or loss of system elements, while operating with a normal scheme configuration, or during scheduled maintenance and repairs, without causing safety hazards, train delays or public nuisance. While the utility power systems' reliability may be expressed in outage minutes per year (or any other time period), which is calculated as a ratio of customers' electrical energy deprivation to system's total power capacity, for a traction power systems' reliability evaluation, minutes of train delays caused by power interruption or relative values such as delay minutes per passenger-mile may be   [More...] [Less...]