Optimal Replacement Time of Electrical Components Based on Constant-Interval Replacement Model: Equipment Inspection Method and Weibull Analysis - Energy and Power Engineering

EPE > Vol.9 No.4, April 2017

Volume 9, Issue 4 (April 2017)

ISSN Print: 1949-243X ISSN Online: 1947-3818

Google-based Impact Factor: 0.66 Citations

Optimal Replacement Time of Electrical Components Based on Constant-Interval Replacement Model: Equipment Inspection Method and Weibull Analysis ()

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Download as PDF (Size: 539KB) PP. 475-485

DOI: 10.4236/epe.2017.94B053 2,736 Downloads 3,479 Views Citations

Author(s)

Ohn Zin Lin, Hajime Miyauchi

Affiliation(s)

Department of Computer Science and Electrical Engineering, Kumamoto University, Kumamoto, Japan.

ABSTRACT

The operation of distribution system with the components in deteriorating condition makes the system reliability worsen. It is important to find the solution for balancing failure cost and maintenance benefits such as down-time and reliability. In this paper, time to replace the components in optimum condition based on constant-interval replacement mode is investigated. The optimal replacement time is mainly depended on component’s reliability and the cost ration of preventive replacement and failure replacement. In this paper, equipment inspection method and Weibull Analysis is applied to obtain the accurate reliability estimation. Weibull Analysis is applied with constant-interval replacement model to investigate the optimum replacement time for each component considering the different cost ratios. According to the quantitative results, the determination of the optimal replacement time (OPT) can minimize the total downtime and failure cost. Consequently, the reliability of the system is maximized and estimation also becomes more accurate due to sufficient approach.

KEYWORDS

Optimal Replacement, Reliability, Cost, Inspection, Weibull Distribution

Share and Cite:

Lin, O. and Miyauchi, H. (2017) Optimal Replacement Time of Electrical Components Based on Constant-Interval Replacement Model: Equipment Inspection Method and Weibull Analysis. Energy and Power Engineering, 9, 475-485. doi: 10.4236/epe.2017.94B053.

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