The Influence of Spacer Dynamic Properties in the Control of Bundle Conductor Motion

Hardy, C.; Bourdon, Paul

doi:10.1109/tpas.1980.319687

Cited by 18 publications

(10 citation statements)

References 2 publications

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“…The applied load corresponded to a load due to 50-mm-thick glaze ice whose density is 900 3 kg/m . The damping ratio of the spacer was set at s ζ = 0.2 in correspondence with [17].…”

Section: Application For a Full-scale Span With A Twin Bundlementioning

confidence: 99%

Modeling Sudden Ice Shedding From Conductor Bundles

Kollár

Farzaneh

2013

IEEE Trans. Power Delivery

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Abstract-Sudden I. INTRODUCTIONHEDDING of the ice accreted on transmission line cables is a recurrent problem in cold regions. The falling of large ice chunks results in high-amplitude vibration of the de-iced cable giving rise to important dynamic forces acting on the transmission line. When a subconductor in a multiconductor bundle sheds, the rotation of the bundle may also be significant, leading to bundle collapse in extreme cases. Bundle collapse occurs when the bundle rotation exceeds a critical angle so that the bundle loses its stability and does not untwist itself after load removal [2], [3]. A review of icerelated dynamic problems on overhead lines, including ice shedding and bundle rolling is provided in [4].Research efforts to understand and simulate the dynamic effects of ice shedding have been carried on for several decades. Reference

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“…The applied load corresponded to a load due to 50-mm-thick glaze ice whose density is 900 3 kg/m . The damping ratio of the spacer was set at s ζ = 0.2 in correspondence with [17].…”

Section: Application For a Full-scale Span With A Twin Bundlementioning

confidence: 99%

Modeling Sudden Ice Shedding From Conductor Bundles

Kollár

Farzaneh

2013

IEEE Trans. Power Delivery

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“…The envelope dimension of spacers is determined by the distance between two subconductors, which is 0.5 m. Spacers for a triple and for a quad bundle consist of 6 and 8 truss elements, respectively. Dimensions are chosen so that mass and inertia are in a realistic range in accordance with the spacers examined in [8]. The elements modeling the frame have linear elastic material properties, and a cross section of 8 cm in height and 4 cm in width.…”

Section: Spacer Modelingmentioning

confidence: 99%

“…An average Young's modulus was determined, which is the tangent of the line connecting the origin and the connection point of the two functions describing the stress-strain relationship. The damping ratio was chosen to be 0.2, which is based on the values reported in [8]. Fig.…”

Section: Spacer Modelingmentioning

confidence: 99%

Vibration of Bundled Conductors Following Ice Shedding

Kollár

Farzaneh

2008

IEEE Trans. Power Delivery

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“…In each simulated case, one subconductor sheds completely and the other subconductor remains loaded. The damping ratio of the spacer is set at 0.2 in correspondence with [2]. Each conductor is simulated by 100 elements, and concentrated loads are applied at every fourth points.…”

Section: Configurations Of Simulated Line Sectionsmentioning

confidence: 99%