NDLI: Interaction of electromagnetic fields from cloud and ground lightning flashes with an artificial low-voltage power installation

Content Provider	IEEE Xplore Digital Library
Author	Galvan, A. Cooray, V. Scuka, V.
Copyright Year	1964
Abstract	In most of the studies dealing with electromagnetic field interaction between nearby lightning flashes and electrical installations, the cloud flashes are assumed to play an insignificant role. However, our studies show that cloud flashes can generate induced voltages with amplitudes comparable to those of ground flashes when the electrical installation has a limited size or length and the lightning flash is a few tens of kilometers away. Furthermore, the voltages generated by cloud flashes have much shorter risetimes and pulse widths than those of ground flashes. This paper presents the results of a study conducted to investigate the coupling mechanism between lightning electromagnetic fields from both cloud and ground flashes and an artificial low-voltage power installation (LVPI). In the experiment, a Y-shaped artificial LVPI was constructed and exposed to lightning-electromagnetic fields. In the experiment, both the vertical electric field and the induced voltage in the LVPI were measured simultaneously. The analysis was conducted in the time domain by using the Alternative Transient Program-Electromagnetic Transient Program (ATP-EMTP) and the horizontal electric field at the installation was calculated by applying the concept of wavetilt to the measured vertical electric field. A reasonable agreement between the measured and simulated induced voltages was found. However, the results given in this study might not be true for longer structures such as power distribution lines and close lightning flashes.
Sponsorship	IEEE Electromagnetic Compatibility Society
Starting Page	250
Ending Page	257
Page Count	8
File Size	362547
File Format	PDF
ISSN	00189375
Volume Number	41
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Lightning
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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