Results 111 to 120 of about 241,915 (134)
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IEEE Transactions on Power Delivery, 1998
A full multi-span three-degree-of-freedom (3-DOF) iced power transmission line model is presented. This new model is applicable for describing the galloping phenomena of both single and bundle lines, for performing static and dynamic analysis, and predicting the galloping behavior of iced power transmission lines, as well as for performing checks ...
null Jianwei Wang, J.-L. Lilien
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A full multi-span three-degree-of-freedom (3-DOF) iced power transmission line model is presented. This new model is applicable for describing the galloping phenomena of both single and bundle lines, for performing static and dynamic analysis, and predicting the galloping behavior of iced power transmission lines, as well as for performing checks ...
null Jianwei Wang, J.-L. Lilien
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Measurement Techniques, 2019
The aeroelastic instability of an ice-covered wire of overhead power transmission lines was investigated. An engineering method for calculating critical wind velocities is proposed. This method makes it possible to define the boundaries of the region of wire galloping of the split phase of a multi-span transmission line. The results that were contained
M. A. Dzhamanbaev +3 more
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The aeroelastic instability of an ice-covered wire of overhead power transmission lines was investigated. An engineering method for calculating critical wind velocities is proposed. This method makes it possible to define the boundaries of the region of wire galloping of the split phase of a multi-span transmission line. The results that were contained
M. A. Dzhamanbaev +3 more
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Characteristics of multi-span transmission lines following ice-shedding
Cold Regions Science and TechnologyKaiwen Wu +5 more
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Aero-elastic testing of multi-spanned transmission line subjected to downbursts
Journal of Wind Engineering and Industrial Aerodynamics, 2017Abstract This paper reports the first aero-elastic test conducted under a scaled downburst wind field at the WindEEE dome facility at the University of Western Ontario, Canada. The main purpose of the test is to assess the dynamic response of a multi-span transmission line.
Amal Elawady +5 more
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Prediction of normal modes of multi-span transmission lines by the assumed modes technique
Journal of Sound and Vibration, 1973A method of finding the normal modes and natural frequencies of multi-span transmission lines by using assumed modes is described, and the assumptions and limitations discussed. Kinetic and potential energy expressions are first of all formulated for a single-span catenary and then applied to provide the equations of motion in the multi-span case ...
M.C. Borgohain, G.T.S. Done
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Study on Numerical Simulation of Iced Conductor Galloping for Multi-Span Power Transmission Lines
Applied Mechanics and Materials, 2010The general expression of Lagrange nonlinear cable element is established firstly by using virtual work principle. On the basis of the theory, the specific expression of a two-node cable element having rotational degree of freedom is derived and the non-linear finite element model of multi-span transmission line for galloping analysis was established ...
Li Li, Zhi Yuan Cheng, Zi Dong Hu
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International Review on Modelling and Simulations (IREMOS), 2015
Increasing the thermal rating of existing overhead transmission lines is a valid alternative to the construction of new links. Dynamic thermal rating (DTR) of power lines is particularly interesting for Transmission System Operators, because the thermal time constant of conductors is relatively high (more than 10 minutes); in case of temporary grid ...
POLI, DAVIDE, PELACCHI, PAOLO
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Increasing the thermal rating of existing overhead transmission lines is a valid alternative to the construction of new links. Dynamic thermal rating (DTR) of power lines is particularly interesting for Transmission System Operators, because the thermal time constant of conductors is relatively high (more than 10 minutes); in case of temporary grid ...
POLI, DAVIDE, PELACCHI, PAOLO
openaire +2 more sources