Title :
Random energisation transients in EHV systems
Author :
Morcos, M. ; Anis, H.
Author_Institution :
Dept. of Electr. & Comput. Eng., Kansas State Univ., Manhattan, KS, USA
fDate :
11/1/1989 12:00:00 AM
Abstract :
Inter-phase switching surges are considered to be a leading element in the dimensioning of insulation. The authors outline the effects of random pole closure of circuit breakers on the statistical features of phase-to-phase overvoltages, the relative magnitude of their phase-to-ground components and their time displacement. These features are computationally derived for a model 500 kV transmission line. Design recommendations are given based on prespecified risks of insulation failure on single phases and between phases
Keywords :
circuit breakers; insulation; overvoltage; power transmission lines; surges; transients; 500 kV; EHV systems; circuit breakers; insulation failure; inter-phase switching surges; phase-to-phase overvoltages; random energisation transients; random pole closure; transmission lines;
Journal_Title :
Generation, Transmission and Distribution, IEE Proceedings C
