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首页> 外文期刊>Turkish Journal of Electrical Engineering and Computer Sciences >An extended component-based reliability model for protective systems to determine routine test schedule
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An extended component-based reliability model for protective systems to determine routine test schedule

机译:用于保护系统的基于组件的扩展可靠性模型,以确定常规测试计划

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摘要

This paper presents a novel approach for evaluating thereliability of protective systems taking into account its componentsreliability. In this paper, a previously proposed extended model isused for a directional over-current scheme. In the extended model,the impacts of individual protective components are taken intoaccount. An optimum routine test schedule is determined for eachprotective component as a separate unit. A comparison is made to showthat the proposed approach has excellence over conventional routinetest inspections. Impacts of factors such as circuit breakerinadvertent opening, required time for performing routine testinspections, human mistakes and self-checking and monitoringeffectiveness is analyzed using the model. Redundancy in some partsof the protective system is examined. Permanent and transient faultson the protected zone, operation of backup protection and common-causefailures are also recognized in the model.
机译:本文提出了一种新颖的方法来评估保护系统的可靠性,并考虑其组件的可靠性。在本文中,先前提出的扩展模型用于定向过电流方案。在扩展模型中,考虑了单个保护组件的影响。确定每个保护组件作为独立单元的最佳常规测试计划。进行了比较,表明所提出的方法优于常规的例行检查。使用该模型分析了断路器无意断开,执行常规测试所需的时间,人为错误以及自检和监视有效性等因素的影响。检查保护系统某些部分的冗余。在模型中还可以识别保护区域的永久性和暂时性故障,备用保护的操作以及常见原因的故障。

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