The impact of early failures on maintenance costs: an empirical study in Latin America

IF 1.8 Q3 ENGINEERING, INDUSTRIAL
Rodrigo E. Peimbert-García, Jesús Isaac Vázquez-Serrano, J. Limón-Robles
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引用次数: 2

Abstract

PurposeLiterature shows that the economics of early failures in maintenance and electric utilities have not been deeply analyzed. This study aims to focus on quantifying the economic impact that early failures in current transformers have on total maintenance costs. The empirical study is conducted in a regional transmission division of an electric utility located in Mexico.Design/methodology/approachThe utility's database was accessed to collect 219 maintenance records. Clustering techniques were used to identify early failures from a bimodal distribution of failures. Confirmatory goodness-of-fit procedures followed the analysis, and finally, direct and opportunity costs were estimated by adapting the cost-of-quality (PAF) Model.FindingsAround 11% of all maintenance activities are triggered by early failures, and they account for up to US$2.2m during the eight-year period under study, which represents 16% of total maintenance costs. Additionally, opportunity costs represent close to two-thirds of the total costs due to early failures. This was obtained after finding and validating a clear-cut border of 3.5 months between early failures and the rest.Originality/valueFailures in energy grids and power transmission can have a large economic impact on the power industry and the society in general. Thus, the maintenance function in equipment such as current transformers is a crucial entry of the budget of any electric utility. This study is one of the very few that highlights the magnitude and importance of direct and opportunity costs derived from early failures.
早期故障对维修成本的影响:拉丁美洲的实证研究
目的文献表明,维修和电力设施早期故障的经济性尚未得到深入分析。本研究旨在量化电流互感器早期故障对总维护成本的经济影响。该实证研究是在墨西哥一家电力公司的区域输电部门进行的。设计/方法/方法访问了公用事业公司的数据库,收集了219份维护记录。聚类技术用于从故障的双峰分布中识别早期故障。在分析之后采用了验证性拟合优度程序,最后通过调整质量成本(PAF)模型来估计直接成本和机会成本。发现所有维护活动中约11%是由早期故障引发的,在研究的八年期间,这些故障高达220万美元,占总维护成本的16%。此外,由于早期失败,机会成本占总成本的近三分之二。这是在发现并验证了早期故障和剩余故障之间3.5个月的明确边界后得出的。原始性/价值电网和输电故障会对电力行业和整个社会产生巨大的经济影响。因此,电流互感器等设备的维护功能是任何电力公司预算的重要组成部分。这项研究是少数几个强调早期失败产生的直接成本和机会成本的规模和重要性的研究之一。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Quality in Maintenance Engineering
Journal of Quality in Maintenance Engineering Engineering-Safety, Risk, Reliability and Quality
CiteScore
4.00
自引率
13.30%
发文量
24
期刊介绍: This exciting journal looks at maintenance engineering from a positive standpoint, and clarifies its recently elevatedstatus as a highly technical, scientific, and complex field. Typical areas examined include: ■Budget and control ■Equipment management ■Maintenance information systems ■Process capability and maintenance ■Process monitoring techniques ■Reliability-based maintenance ■Replacement and life cycle costs ■TQM and maintenance
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