Title :
Two types of lightning discharges to a high stack on the coast of the sea of Japan in winter
Author :
Asakawa, A. ; Miyake, K. ; Yokoyama, S. ; Shindo, T. ; Yokota, T. ; Sakai, T.
Author_Institution :
Central Res. Inst. of Electr. Power Ind., Tokyo, Japan
fDate :
7/1/1997 12:00:00 AM
Abstract :
To clarify the characteristics of lightning on the coast of the Sea of Japan in the winter season, the current waveform and the progression of lightning discharge to a high stack were observed. Observation results from 1989 to 1994 show that: (1) there are two types of lightning discharges-one with large currents and strong luminosity in the lightning path, and the other with small currents of long duration and weak luminosity of lightning path; (2) the parameters of lightning currents of the two types of discharges are quite different; and (3) there is a quantitative correlation between the change of luminosity in a lightning path and the lightning current waveform
Keywords :
lightning; lightning protection; power system measurement; power system protection; power transmission lines; AD 1989 to 1994; Sea of Japan; coastline; current waveform; lightning characteristics; lightning current waveform; lightning discharge progression; lightning progression; luminosity; power transmission line protection; winter season; Automatic logic units; Cameras; Current measurement; Dynamic range; Frequency; Lightning; Optical fibers; Resistors; Sampling methods; Sea measurements;
Journal_Title :
Power Delivery, IEEE Transactions on
