Title :
Optimal selection of disruptive effect models parameters for the reproduction of MV insulators volt-time characteristics under standard and non standard lightning impulses
Author :
Ancajima, A. ; Carrus, A. ; Cinieri, E. ; Mazzetti, C.
Author_Institution :
Departimental de Ing. Mecanico- Electr., Univ. of Piura, Piura
Abstract :
In the present paper the problem of the reproduction of volt-time characteristics of MV insulators under standard and a short tail lightning impulses is considered. For this purpose models based on the disruptive effect, as proposed by Kind and modified by Chowdhuri, are applied. Aim of the paper is the optimal selection of the parameters values to be inserted in the two models for each stressing voltage shape, 1.2/50 mus (LI) and 1.2/4 mus (STLI).
Keywords :
insulators; lightning; MV insulators volt-time characteristics; disruptive effect; disruptive effect models parameters; nonstandard lightning impulses; short tail lightning impulses; Breakdown voltage; Equations; Helium; Impulse testing; Insulation; Lightning; Shape; Spark gaps; Surges; Tail; Lightning induced overvoltages; Volt-time characteristic; coordination of insulations; spark-over models;
Conference_Titel :
Power Tech, 2007 IEEE Lausanne
Conference_Location :
Lausanne
Print_ISBN :
978-1-4244-2189-3
Electronic_ISBN :
978-1-4244-2190-9
DOI :
10.1109/PCT.2007.4538411
