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Concurrent flashover phenomena of a parallel gap configuration—effects of gap length and residual voltage
Author(s) -
Shindo Takatoshi,
Miki Megumu,
Miki Toru
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.22672
Subject(s) - arc flash , residual , electric arc , voltage , electric power transmission , materials science , mechanics , electrical engineering , engineering , mathematics , chemistry , physics , electrode , algorithm
For the analysis of back‐flashover phenomena of transmission lines, accurate evaluation of flashover occurrence at arcing horns is necessary. In this paper, parallel gap flashover phenomena are studied theoretically in the following conditions: (i) the gap lengths are different, and (ii) after one of the gaps flashes overs, there remains some residual voltage. The formulae for the occurrence probabilities of concurrent flashover on these conditions are introduced. Based on the analysis, application to the analysis of multiphase flashover is discussed. © 2018 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.