%C Penang %K Crosslinked polyethylene; Electrical power distribution systems; FTIR; Harmonic currents; Nonlinear dielectric response; Power cables; The scanning electron microscopes (SEM); Water trees, Computer simulation; Dielectric devices; Electric load distribution; Forestry; Fourier transform infrared spectroscopy; Harmonic analysis; Insulating materials; Partial discharges; Scanning electron microscopy; Telecommunication cables, Cables, Cables; Dielectrics; Electrical Engineering; Forestry; Fourier Analysis; Infrared Spectroscopy; Simulation; Telecommunications %D 2012 %L scholars2439 %A N. Hussain %A N.M. Nor %A M.F. Abdullah %A K. Ashraf %A Z.A. Baloch %A S.K. Bizanjo %P 154-159 %X Medium voltage (MV) cross linked polyethylene (XLPE) insulated power cables are being used in electrical power distribution system networks throughout the world. Deterioration like voids, cracks, delimitation, protrusions and contaminants in the cable insulation may initiate water tree, electrical tree and partial discharge. Water treeing is the main cause of insulation failure in MV power cables. The nonlinear dielectric response of water tree generates harmonics in the AC loss current. This paper presents a detailed study of the characterization of XLPE cable insulation. The morphological study of XLPE cable samples has been carried out by using the Scanning Electron Microscope (SEM) and the chemical analysis has been carried out by using Fourier Transform Infrared spectroscopy (FTIR). The MATLAB/SIMULINK program has been used to model and simulate degradation in the power cable due to water tree. This model is simulated with supply frequencies at 50 Hz, 100 Hz and 150 Hz. The 3 rd harmonic current has been recorded from the total current flowing through the cable insulation. The generated harmonics have a good relationship with degradation caused by water tree. © 2012 IEEE. %O cited By 1; Conference of 2012 IEEE Student Conference on Research and Development, SCOReD 2012 ; Conference Date: 5 December 2012 Through 6 December 2012; Conference Code:97396 %T The nonlinear dielectric response of water tree degradation in a medium voltage power cable %R 10.1109/SCOReD.2012.6518630 %J SCOReD 2012 - 2012 IEEE Student Conference on Research and Development