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Fundamental study on rationalization of maintenance procedure based on reliability analysis
Author(s) -
Kameda Hideyuki,
Yamashita Koji
Publication year - 2006
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.20161
Subject(s) - reliability engineering , reliability (semiconductor) , clearance , relay , rationalization (economics) , engineering , computer science , protective relay , medicine , power (physics) , philosophy , physics , epistemology , quantum mechanics , urology
We have developed the Reliability Analysis System for Protective Relays (RASPR), which is composed of a database for protective relay equipment and its failures, and reliability analysis part. The data for relay systems and their failures have been collected since fiscal 1997. Copyright © 2004 Wiley Periodicals, Inc. In this paper, the following suggestions were made from the analysis of the reliability for protective relays: (1) Omission of interruption of automatic checking at fault does not exert an influence on the reliability such as the availability. (2) Improvement of the availability was cleared from the analysis of effect of shortening of the testing time required. (3) The extension of the periodic testing period could be possible if 70% of failures discovered in a periodic testing were detected by continuous monitoring. © 2006 Wiley Periodicals, Inc. Electr Eng Jpn, 156(2): 25–31, 2006; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.20161