Response of overhead lines of finite length to nearby lightning strokes

Response of overhead lines of finite length to nearby lightning strokes

The response of overhead power lines of finite length to lightning strokes to nearby ground is analyzed. It is shown that terminating a short line with its surge impedance would not necessarily represent longer lines in its response to nearby lightning strokes. Multiple reflections at the line termi...

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Veröffentlicht in:IEEE transactions on power delivery 1991-01, Vol.6 (1), p.343-351
1. Verfasser: Chowdhuri, P.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Electric resistance
Electrical engineering. Electrical power engineering
Electrical power engineering
Exact sciences and technology
Frequency
Impedance
Lightning
Magnetic analysis
Optical reflection
Overhead networks
Performance analysis
Power networks and lines
Resistors
Surge protection
Voltage
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Zusammenfassung:The response of overhead power lines of finite length to lightning strokes to nearby ground is analyzed. It is shown that terminating a short line with its surge impedance would not necessarily represent longer lines in its response to nearby lightning strokes. Multiple reflections at the line terminals of a short line not terminated by its surge impedance are generated even for lightning strokes perpendicular to the line. Lightning strokes beyond the line near the line axis may generate high voltages of short risetime.< >
ISSN:0885-8977
1937-4208
DOI:10.1109/61.103757