Title :
Investigation of HV insulation properties - selected time and frequency domain methods
Author :
Florkowska, B. ; Jackowicz-Korczynski, A. ; Wlodek, R. ; Zydron, P.
Author_Institution :
Dept. of Electr. Power, AGH-UST, Krakow, Poland
Abstract :
Paper presents results of time and frequency domain investigations of relaxation phenomena occurring in selected high voltage insulation systems. Ageing processes during insulation lifetime result in less or more significant changes of its dielectric properties. Polarization and depolarization currents, voltage response and loss factor measurement methods allow to investigate these changes and to try connecting received results with actual state of tested insulation system. Laboratory measurement results, methods of numerical data evaluating and data fitting for different response functions and equivalent circuit models are presented in the paper.
Keywords :
ageing; frequency-domain analysis; high-voltage techniques; insulator testing; organic insulating materials; time-domain analysis; HV insulation properties; ageing processes; depolarization currents; dielectric properties; equivalent circuit models; frequency domain methods; high voltage insulation systems; loss factor measurement methods; polarization currents; relaxation phenomena; response functions; time domain methods; voltage response; Aging; Current measurement; Dielectric loss measurement; Dielectric measurements; Dielectrics and electrical insulation; Frequency domain analysis; Joining processes; Loss measurement; Polarization; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2003. Annual Report. Conference on
Print_ISBN :
0-7803-7910-1
DOI :
10.1109/CEIDP.2003.1254901
