نتایج جستجو برای: Switching Failures
تعداد نتایج: 110514 فیلتر نتایج به سال:
Gas-insulated substations (GIS) have different specifications in proportion to air-insulated substations. Transformer failures related to lightning and switching are often reported in the gas insulated substation (GIS). This problem is the voltage magnifications due to reflections of switching and lightning surges at various junctions within the GIS. thereby overvoltages in GIS are more importa...
Abstract: In this paper, we study the reliability measures of a repairable system with M operating units, W warm standby units, and R repairmen in which switching failures and reboot delay are considered. It is assumed that there is a significant failure probability q in the switching process. Failure times of an operating unit and of a standby unit are assumed to be exponentially distributed w...
power transformers are important equipments in power systems. thus there is a large number of researches devoted of power transformers. however, there is still a demand for future investigations, especially in the field of diagnosis of transformer failures. in order to fulfill the demand, the first part reports a study case in which four main types of failures on the active part are investigate...
abstract in a protocol analysis of second language writing from 20 adult english as a foreign language (efl) iranian students, this research observed how language-switching (l-s), i.e., first language use in l2 writing, was affected by l2 proficiency. switching interactively between first (l1) and second (l2) languages has been recognized as one of the salient characteristics of l2 writing....
6.0 Experiment 2: 6.1 Evolving coil switching pattern generators for a brushless DC motor 6.2 Brushless Motors – principles of operation 6.3 Experimental setup 6.4 Power driver design 6.5 Fitness function 6.6 Problems and issues that arose during testing 6.7 Evolving a controller for a fully functioning motor 6.8 Evolving a controller with random coil failures 6.9 Evaluating a normal controller...
After decades of research, cascading blackouts remain one the unresolved challenges in bulk power system operations. A new perspective for measuring susceptibility to failures is clearly needed. The newly developed concept stress metrics may be able provide insights into this problem. method measures as by analyzing network structure and electrical properties. This paper investigates effectiven...
Fault-tolerant programs are typically not only difficult to implement but also incur extra costs in terms of performance or resource consumption. Failures are typically relatively rare but the fault-tolerance overhead must be paid regardless if any failures occur during the program execution. This paper presents an approach that reduces the cost of fault-tolerance, namely, adaptations to a chan...
Preconfigured protection cycles or “p-cycles” can attain high capacity efficiency and fast protection switching times when deployed in WDM mesh networks. We consider the survivability of p-cycles in presence of multiple failures which can occur in larger networks.
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