Simulation of UHF PD Wave Propagation in Plug-in Cable Terminations

Denissov, D.; Köhler, Wolfgang R.; Tenbohlen, Stefan; Grund, R.; Klein, Thomas

doi:10.1109/elinsl.2008.4570392

Cited by 3 publications

(1 citation statement)

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“…Excitation source and settings of boundary condition. Studies have shown that, when PD occurs during cable's running, the width of its single EM pulse is usually of several ns, so this paper simulates PD excitation current source by pulse Gaussian function [5,6] , whose expression is:…”

Section: Simulation Calculation Model Of Cable Jointsmentioning

confidence: 99%

Study on Propagation Characteristics of EM Wave of PD in Cable Accessories

Shi

Wang

et al. 2013

AMM

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PD in cable accessories will inspire EM waves of ultra-high frequency (UHF) at hundreds of MHZ to GHZ. To study the characteristics of EM wave inspired by PD in cable accessories, a three-dimension model of 110kV cable joints is established. Based on the propagation theory of EM waves in coaxial waveguide, finite element method (FEM) is used to analyze the effect of cable joints composite interfaces on UHF signal propagation, and simulation analysis of relations between PD UHF signal's energy distribution, pulse frequency, propagation distance. Simulation results show that the main transmission mode of EM waves is TEM mode in the joints; Energy of EM waves descends rapidly as the PD pulse's frequency increases; Energy of TEM waves descends rapidly with the increasing detection distance. Simulation analysis of UHF signal's propagation characteristics provides the theoretical basis for UHF PD detection in cable accessories.

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Section: Simulation Calculation Model Of Cable Jointsmentioning

confidence: 99%