A Method to Define the Efficiency of Damping Devices for Single and Bundled Conductors of EHV and UHV Lines

Diana, Giorgio; Falco, M.; Curami, A.; Manenti, A.

doi:10.1109/tpwrd.1987.4308130

Cited by 8 publications

(4 citation statements)

References 5 publications

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“…It is convenient to normalize (1), (2) and 3by dividing them by some reference power or energy to render them dimensionless. There are two ways to do this in current use.…”

Section: P Maxmentioning

confidence: 99%

The long span problem in the analysis of conductor vibration damping

Rawlins

2000

IEEE Trans. Power Delivery

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“…It is convenient to normalize (1), (2) and 3by dividing them by some reference power or energy to render them dimensionless. There are two ways to do this in current use.…”

Section: P Maxmentioning

confidence: 99%

The long span problem in the analysis of conductor vibration damping

Rawlins

2000

IEEE Trans. Power Delivery

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“…Studies on aeolian vibration of electric conductors can be classified into three catalogs: experimental methods, numerical methods, and analytical methods. G Diana and colleagues, 8,9 C Rawlins, 10 and M Belloli et al 11 conducted a series of wind tunnel tests to investigate the wind-induced vibration of electric conductors and provided significant data and information for later studies. [8][9][10][11] Y Momomura et al 12 conducted a 2-year full-scale measurement of a transmission line located in a mountainous area.…”

Section: Introductionmentioning

confidence: 99%

“…G Diana and colleagues, 8,9 C Rawlins, 10 and M Belloli et al 11 conducted a series of wind tunnel tests to investigate the wind-induced vibration of electric conductors and provided significant data and information for later studies. [8][9][10][11] Y Momomura et al 12 conducted a 2-year full-scale measurement of a transmission line located in a mountainous area. D Brika and A Laneville 13 built a laboratory setup to investigate the power imparted to a twin conductor bundle.…”

Section: Introductionmentioning

confidence: 99%

“…A Simpson et al 19,20 proposed a mathematical model of a quad bundle electric conductor coupled with self-damping spacers and provided a method for design and installation location optimization of spacers. G Diana et al 8 investigated the efficiency of vibration dampers and damping spacers for aeolian vibration of single and bundled conductors experimentally. JT Schmidt et al 21 checked the experimental methodologies of Institute of Electrical and Electronics Engineers (IEEE) guide for laboratory test of power dispassion of vibration damper and proposed a computational method to simulate the test by taking consideration of damper impedance.…”

Section: Introductionmentioning

confidence: 99%

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Study on aeolian vibration suppression schemes for large crossing span of ultra-high-voltage eight-bundle conductors

Rui

et al. 2019

Advances in Mechanical Engineering

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Ultra-high-voltage transmission line is prone to severely aeolian vibration, especially for the large crossing span. However, few studies were conducted previously, as a result of high nonlinearity and complexity of the bundled conductor aeolian vibration system. This article introduces the analytical models of conductor and damping devices first, to get the key factors for aeolian vibration and to direct the experimental study based on the energy balance principal. Second, the self-damping characteristics of single sub-conductor and energy dissipation power of vibration damper are tested in the laboratory. Third, two aeolian vibration schemes, the first one with vibration dampers only and the second one with both vibration dampers and damping wires, are proposed and evaluated experimentally on the single sub-conductor and then on the eight-bundle test spans. It is found that the concerned conductor has excellent damping effect at highfrequency range and that both of the two schemes show satisfactory aeolian vibration suppression result, but the second one is recommended for its good long-term service performance. This study provides useful reference for aeolian vibration suppression of ultra-high-voltage lines, to avoid fatigue failures of components induced by aeolian vibration and to improve the mechanical security of transmission lines.

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Vibration of bundled and single conductors: A comparative case study

Richardson¹

1990

Electric Power Systems Research

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A Method to Define the Efficiency of Damping Devices for Single and Bundled Conductors of EHV and UHV Lines

Cited by 8 publications

References 5 publications

The long span problem in the analysis of conductor vibration damping

The long span problem in the analysis of conductor vibration damping

Study on aeolian vibration suppression schemes for large crossing span of ultra-high-voltage eight-bundle conductors

Vibration of bundled and single conductors: A comparative case study

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