Title :
The role of dispersion in fast wavefronts of power-mains disturbances
Author :
Forti, M. ; Millanta, L. ; Pellicci, G.
Author_Institution :
Dept. of Electron. Eng., Florence Univ., Italy
Abstract :
The analysis presented relates the transient voltage rate of change to the power main (PM) line attenuation and dispersion (mainly dielectric) characteristics. The initial discontinuity produced by a load connection or disconnection is modified on propagation along the PM line. Attention is confined to differential-mode transients. The response of the line to an ideal step is analyzed to derive limits for the rate of change of the wavefront. The approximate 10 to 90% rise time is derived and FFT computations have been performed for confirmation, as a function of distance along the line from the excitation point. Attention is confined to the incident wave
Keywords :
distribution networks; transients; FFT; dielectric characteristics; differential-mode transients; dispersion; distance; fast wavefronts; ideal step; incident wave; load connection; power main line attenuation; power-mains disturbances; response; rise time; transient voltage rate of change; wavefront; Cable insulation; Delta modulation; Dielectric losses; Geometry; Impedance; Inductance; Switches; Transient analysis; Voltage; Wire;
Conference_Titel :
Electromagnetic Compatibility, 1991. Symposium Record., IEEE 1991 International Symposium on
Conference_Location :
Cherry Hill, NJ
Print_ISBN :
0-7803-0158-7
DOI :
10.1109/ISEMC.1991.148284
