Galloping database on single and bundle conductors prediction of maximum amplitudes

A database of 166 observations of galloping on single, twin, triple and quad bundle lines has been analyzed. The database is sufficiently detailed to define the variation of maximum amplitudes of galloping motion for single conductors in 50 to 450 m spans, and for twin and quad bundles in 200 to 450...

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Bibliographic Details
Published in:IEEE transactions on power delivery 2000-04, Vol.15 (2), p.670-674
Main Authors: Lilien, J.L., Havard, D.G.
Format: Article
Language:English
Subjects:
Amplitudes
Bundle conductors
Bundles
Conductors
Design methodology
Flashover
Galloping
Ice
Mathematical analysis
Mathematical models
Motion control
Motion estimation
Numerical models
Poles and towers
Proposals
Temperature
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Summary:A database of 166 observations of galloping on single, twin, triple and quad bundle lines has been analyzed. The database is sufficiently detailed to define the variation of maximum amplitudes of galloping motion for single conductors in 50 to 450 m spans, and for twin and quad bundles in 200 to 450 m spans. Conventional design expectations are exceeded, for maximum galloping motions on short spans, and through the existence of single loop galloping on long spans. New proposals are presented for estimating the maximum galloping, motions for spans without galloping controls. The best fit numerical model for single conductors uses the peak to peak galloping amplitude over subconductor diameter, versus "conductor span parameter", the conductor diameter over the sag. The best fit model for bundle conductors uses the peak to peak galloping amplitude over subconductor diameter as a function of the "conductor span parameter".
ISSN:0885-8977
1937-4208
DOI:10.1109/61.853003