The Journal of the Institute of Electrical Installation Engineers of Japan
Online ISSN : 2188-6946
Print ISSN : 0910-0350
ISSN-L : 0910-0350
Volume 32 , Issue 9
Showing 1-12 articles out of 12 articles from the selected issue
  • Shozo Sekioka, Makoto Osano
    2012 Volume 32 Issue 9 Pages 699-706
    Published: 2012
    Released: September 01, 2014
    JOURNALS FREE ACCESS
    Insulation level of a photovoltaic system is low. Therefore,lightning protection design of photovoltaic systems is targeted for lightning-induced voltages as well as shielding effect of lightning rods. Photovoltaic generation is expected to play all important role to cut the peak electric power in summer,and number of photovoltaic panels rapidly increases. Lightning damages caused by direct lightning hit to photovoltaic system might clearly appear due to the increase of the panels. In this paper,an experiment of discharge between a rod which represents a final jump of a lightning stroke and a photovoltaic panel is carried out. The experiment shows a surface discharge occurs after a sparkover between the rod and the panel when a flame of the panel is grounded,and damage in the panel rarely occurs due to the surface discharge.
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