WebNov 5, 2024 · The frequency and phase of the galloping of the iced quad bundle conductor obtained by the two discrete methods are also different to some extent. This is because the indirect discrete method ignores the … WebMay 1, 2024 · Galloping of one-span quad bundle conductor lines accreted with crescent-shaped ice is numerically simulated in the parameter study. The conductor type is 4XLGJ-400/50, the diameter of each sub-conductor is 27.6 mm, the axial rigidity is 33.95 × 10 6 N and the torsional rigidity is 1193.22 N·m 2 /rad.
Aerodynamic Characteristics of Iced 8-bundle Conductors under …
WebGalloping is a large amplitude, low frequency, wind-induced oscillation of overhead electrical lines. In the vast majority of cases, an ice accretion is present on the … WebJun 29, 2000 · Galloping of Bundle Conductor. Q. Zhang, N. Popplewell, A. H. Shah. Published 29 June 2000. Physics. Journal of Sound and Vibration. A useful design tool is … mary roche critical thinking
Study on Galloping Oscillation of Iced Twin Bundle Conductors ...
WebOct 14, 2024 · Then, key parameters, such as turbulence intensity, ice thickness and ice shape have significant influences on aerodynamic coefficients of each sub-conductors. … WebJan 1, 2024 · Rotary clamp spacer is a prospective anti-galloping device for bundle conductor lines. The rotation-free clamp of a rotatory clamp spacer allows the connected sub-conductor rotate freely around its axis, which makes ice shape along span uniform and weakens the aerodynamic loads on the iced sub-conductors to diminish or control the … Webof the iced quad bundle conductors with 3-DOF has not been studied. Based on the quasistatic theory, this paper establishes a galloping model of iced quad bundle conductors with 3-DOF, considers theinfluence of wake effect on theaerodynamic force of each subconductor, and theoretically deduces the stability judgment of transmission … hutchinson cnn