Title :
Peculiarities of nonsustained disruptive discharges at interruption of cable/line charging current
Author :
Chaly, A.M. ; Denisov, L.V. ; Poluyanov, V.N. ; Poluyanova, I.N.
Author_Institution :
Tavrida Electr., Sevastopol, Ukraine
Abstract :
It has been found out that NSDD probability increases at cable/line charging current interruption compared with no-load test. This fact has been explained by formation of contact welds at closing of the preliminary charged cable/line. These welds being torn apart at the following contact partition may serve as a source of macroparticles or surface irregularities resulting in increased probability of NSDD.
Keywords :
cables (electric); electrical contacts; short-circuit currents; vacuum circuit breakers; cable line charging current interruption; contact welds formation; macroparticles; no-load test; nonsustained disruptive discharge; short circuit currents; surface irregularities; vacuum circuit breakers; Circuit testing; Contacts; Electric breakdown; Fault location; Hafnium; Probability; Surface charging; Surface discharges; Surges; Voltage;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum, 2002. 20th International Symposium on
Print_ISBN :
0-7803-7394-4
DOI :
10.1109/ISDEIV.2002.1027381
