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

fYear

1991

fDate

12-16 Aug 1991

Firstpage

497

Lastpage

498

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 1991. Symposium Record., IEEE 1991 International Symposium on

Conference_Location

Cherry Hill, NJ

Print_ISBN

0-7803-0158-7

Type

conf

DOI

10.1109/ISEMC.1991.148284

Filename

148284