Simulation of Partial Discharge Propagation Characteristics in XLPE Cables and Joints

Abstract:

Accurate Partial discharge (PD) detection and location is of great significance for the power cable insulation condition monitoring. To achieve this, an adequate cable model to analyze pulse propagation is needed. Considering the complex structure of the cable, the equivalent circuit model is no longer applicable. In this paper a numerical electromagnetic method, FDTD, is applied. To analysis wave propagation characteristics in time domain, a well-established cable model is constructed. By simulating the electromagnetic (EM) field propagation inside the cable and the cable joint, the components of the electric fields excited by the PD source in different directions are calculated in order to evaluate the influence of the cable joint in practice, the calculated PD waveforms in the cable are compared with those of the cable joint model in FDTD.

• Periodical: Applied Mechanics and Materials (Volumes 494-495)
• Pages: 1436-1439
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.494-495.1436
• Online since: February 2014
• Authors: Bin Liu*, Yu Qi Yang, Xi Ping Chen, Zhen Quan Sun, Hong Jie Li
• Keywords: Cross-Linked Polyethylene (XLPE) Cable, Finite Difference Time Domain (FDTD), Partial Discharge (PD), Propagation Characteristics

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