Characteristics of winter lightning current on Japan Sea Coast

Author

Miyake, Kunihiko ; Suzuki, Toshio ; Shinjou, Kazuo

Author_Institution

Central Res. Inst. of Electr. Power Ind., Tokyo, Japan

Volume

7

Issue

3

fYear

1992

fDate

7/1/1992 12:00:00 AM

Firstpage

1450

Lastpage

1457

Abstract

Long-term observation of winter lightning has been conducted on the Japan Sea Coast since 1978. From various kinds of observations, the results of lightning current measurement by an automatic lightning current recording system are reported. It is shown that winter lightning current has wide variations in its waveform, but the frequency distribution of the front duration, the tail duration, and the front steepness can be approximated by a logarithmic normal distribution. Positive polarity lightning current tends to have much longer front and tail duration than negative lightning current. The ratio of the positive to the negative polarity is one to two in winter lightning, which is much higher than that of summer lightning. The cumulative frequency distribution of the winter lightning current peak agrees with that of the summer lightning current. The fractional distribution was proposed for winter lightning protection design

Keywords

electric current measurement; lightning; Japan Sea Coast; atmosphere; automatic lightning current recording system; frequency distribution; front duration; front steepness; negative polarity lightning; positive polarity lightning; summer lightning; tail duration; winter lightning current; Cameras; Current measurement; Disk recording; Fault location; Lightning; Magnetic recording; Power system transients; Power transmission lines; Sea coast; Sea measurements;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.141864

Filename

141864