Simulated Electromagnetic Field Profile Inside and Outside XLPE Power Cable due to Partial Discharge

Abstract

The electromagnetic field profile due to partial discharge is simulated. The x, y and z components of the electric and magnetic fields are calculated at the azimuthal plane of the single core xlpe cable, at the near field and far field regions inside and outside the cable. The results from the simulation give indication that the propagation mode of partial discharge signal at near field is hybrid transverse electric & transverse magnetic mode. The propagation mode at the far field region inside the power cable is transverse electric magnetic; and the propagation mode of the partial discharge outside the cable is quasi transverse electric magnetic.

The detection of magnetic field from partial discharge (PD) signal in XLPE cable using inductive probe

“…From the measurement of the propagation speed of the magnetic wave outside the cable, the magnetic probe has validated the simulated results [6]. And hence by this validation, the single layer air-core inductive coil has successfully detected the transient magnetic field components due to partial discharge and also the value of the transient magnetic field components can be estimated using the numerical V o /H ratio.…”

“…Modelling & simulation work of the propagation of magnetic field components due to PD inside power cable was done to show that these components do propagate outside the cable [6].…”

Modelling and experimental validation of EM wave propagation due to PDs in XLPE cables

“…A detailed study on the propagation of EM waves is necessary for detection and localisation of PD sources by a proper interpretation of the measured signals. The occurrence of PDs in the insulation radiates EM waves inside and outside the cable geometry [28,29]. The conduction and displacement of current components in the PD current are the major sources of EM waves in the insulation of power equipment.…”

“…An intensive literature survey on modelling methods for simulation of PD pulses due to insulation deformations and propagation of EM waves is carried out to identify the most dependable methods for development of a simulation scheme for EM wave propagation in cables [29][30][31][32][33][34][35][36][37].…”

“…An investigation on the modelling schemes identifies the appropriateness of finite element method (FEM) and finitedifference time-domain (FDTD)-based approaches for the analysis of PD occurrence in cavities and the propagation of related EM waves, respectively [29][30][31][32][33]. A precise modelling scheme for analysis of propagated EM fields at different distances from the cable source due to the PD occurrence at deformations in the cable insulation is not yet reported in the literature.…”