保護リレー信頼度解析に基づく保守合理化の検討 Fundamental Study on Rationalization of Maintenance Procedure based upon Reliability Analysis
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.In this paper, the following suggestion was made from the analysis of the reliability for protective relays; 1) Omission of interruption of automatic checking at fault doesn't have 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.
- 電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society
電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society 124(7), 931-936, 2004-07-01