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Some Insights Into the Effect of Maintenance Quality for a Protection System

机译:关于保护系统维护质量影响的一些见解

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This paper considers an inspection and preventive replacement policy for a one-component protection or cold standby system. Inspection is imperfect, and subject to false positives and negatives; preventive replacement may also be of poor quality. We determine conditions relating to the quality of the inspection and preventive replacement under which a maintained system would not benefit from the execution of inspections and preventive maintenance. We present examples with decreasing failure rate component lifetimes in which preventive replacement is cost-optimal, contrary to the classic policy. Such cases arise when inspections do not necessarily detect the failed state.
机译:本文考虑了针对单组件保护或冷备用系统的检查和预防性更换策略。检查是不完善的,有误报和漏报的情况;预防性更换的质量也可能很差。我们确定与检查和预防性更换的质量有关的条件,在这些条件下,维护的系统不会从执行检查和预防性维护中受益。我们提出了降低故障率组件寿命的示例,其中与传统策略相反,预防性更换是成本最佳的。当检查不一定检测到故障状态时,就会出现这种情况。

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