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Observation of lightning effect on power distribution lines by still cameras
Author(s) -
Taniguchi Hiromitsu,
Sugimoto Hitoshi,
Yokoyama Shigeru
Publication year - 1997
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/(sici)1520-6416(19970415)119:1<17::aid-eej3>3.0.co;2-m
Subject(s) - lightning strike , lightning (connector) , lightning arrester , electrical engineering , surge arrester , transformer , line (geometry) , voltage , engineering , power (physics) , physics , geometry , mathematics , quantum mechanics
In order to clarify the cause of lightning outages of a distribution line, simultaneous observation of lightning discharge channels and types of damage on distribution lines were carried out with still cameras from July 1993 through July 1995. High‐voltage lines located in the observation area did not suffer from induced voltages due to indirect lightning strikes, even if such lightning strikes were nearby. One instance of a direct lightning strike on a distribution line was observed. The striking point was the span center of the overhead ground wire, and only a transformer fuse was blown on the high‐voltage line. Damage to surge arresters was observed in the case of a lightning strike on a building located near a distribution line. The cause is thought to have been lightning current which flowed into the nearby distribution line through the damaged arresters. © 1997 Scripta Technica, Inc. Electr Eng Jpn 119(1): 17–23, 1997