Modelling of power lines in lightning incidence calculations
- British Columbia Hydro and Power Authority, Vancouver, BC (Canada)
- Univ. of British Columbia, Vancouver, British Columbia (CA)
When applying the electrogeometric model to power lines to determine the frequency and characteristics of the collected lightning strokes, the power line has traditionally been represented by a set of horizontal wires, i.e. both the sag of the wires and the existence of the towers have been ignored. This approach has serious shortcomings including inability to determine the percentage of the strokes terminating on the towers, failure to correctly predict the effect of height on median current, and giving an approximate value for the number of collected strokes without telling the corresponding degree of error. This paper eliminates the above problems by presenting a computerized solution which takes into consideration the sag of the wires, the existence of the towers, and the inequality of the striking distances to towers and to wires. The features of the program are discussed in the paper, and some of its results are given.
- OSTI ID:
- 5128896
- Journal Information:
- IEEE (Institute of Electrical and Electronics Engineers) Transactions on Power Delivery; (USA), Vol. 5:1; ISSN 0885-8977
- Country of Publication:
- United States
- Language:
- English
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29 ENERGY PLANNING
POLICY AND ECONOMY
LIGHTNING
ENVIRONMENTAL IMPACTS
POWER TRANSMISSION LINES
DESIGN
COMPUTER CALCULATIONS
ELECTROMAGNETIC FIELDS
GEOMETRY
PLANNING
RELIABILITY
SAFETY
WIRES
ELECTRIC DISCHARGES
MATHEMATICS
240201* - Power System Networks
Transmission & Distribution- AC Systems- (1990-)
296000 - Energy Planning & Policy- Electric Power
290300 - Energy Planning & Policy- Environment
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& Safety