Lightning-induced voltages on multiconductor overhead lines

• Published in: IEEE transactions on power delivery Vol. 5; no. 2; pp. 658 - 667
• Main Author: Chowdhuri, P.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01.04.1990; Institute of Electrical and Electronics Engineers
• Subjects: Applied sciences; Capacitance; Conductors; Distributed parameter circuits; Electrical engineering. Electrical power engineering; Electrical power engineering; Equivalent circuits; Exact sciences and technology; Overhead networks; Power & Energy Society; Power networks and lines; Printing; Samarium; Transmission line matrix methods; Voltage; Wires; Amplitude; Induced voltage; Lightning discharge; Shielding effect; Overhead line; Multiconductor line; Electrical model; Time response; Calculating method; Electromagnetic coupling; Power transmission line
• ISSN: 0885-8977; 1937-4208
• DOI: 10.1109/61.53068

The effects of other conductors in a multiconductor overhead line on the voltages induced on a conductor by a nearby lightning strike are analyzed on the basis of previous studies on long single-conductor overhead lines. It is shown that the presence of other conductors affects the induced voltage of a conductor, particularly for vertically configured lines; however, the amount is less than that originally predicted. Ground wires reduce the magnitude of the induced voltages, thus acting as partial shields. The amount that the ground wires reduce the induced voltages on the conductors is dependent on the position of the ground wires in relation to the ungrounded conductors.< >