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Early warning of current‐carrying faults based on deterioration assessment of electric contacts
Author(s) -
He Xin,
Xu Li,
Zhang Zhe
Publication year - 2018
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.22786
Subject(s) - warning system , electric power , entropy (arrow of time) , reliability engineering , computer science , engineering , electrical engineering , power (physics) , telecommunications , physics , quantum mechanics
This article presents a novel early warning approach of current‐carrying faults of electric equipment based on the deterioration assessment of electric contacts. We propose to detect the temperature diversity among three phases at a certain site by employing the singular entropy analysis to the temperature sequences. Then, power spectrum density is employed to analyze the deterioration and to locate the potential faulty contacts while accomplishing the precaution task. Experimental results are presented to verify the feasibility and validity of the proposed method. © 2018 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.