Estimation of flashover rates of overhead power distribution lines by lightning strokes to nearby ground

A method is proposed for calculating the flashover of an overhead power distribution line caused by lightning strokes to nearby ground. The results are presented in the form of a graph of flashover rate vs. BIL (basic impulse insulation level) for a 10 m high line and ground flash density of 10/km/s...

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Veröffentlicht in:	IEEE transactions on power delivery 1989-07, Vol.4 (3), p.1982-1989
1. Verfasser:	Chowdhuri, P.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Clouds Electrical engineering. Electrical power engineering Electrical power engineering Electrostatics Exact sciences and technology Flashover Lightning Magnetic fields Overhead networks Power distribution Power distribution lines Power networks and lines Power system reliability Statistical distributions Voltage
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Beschreibung
Zusammenfassung:	A method is proposed for calculating the flashover of an overhead power distribution line caused by lightning strokes to nearby ground. The results are presented in the form of a graph of flashover rate vs. BIL (basic impulse insulation level) for a 10 m high line and ground flash density of 10/km/sup 2//year. Flashover rates of lines of different heights and ground flash densities can be estimated from this graph.< >
ISSN:	0885-8977 1937-4208
DOI:	10.1109/61.32698