Title :
Insulation co-ordination of spark gaps and ZnO surge arresters
Author :
Abdul-Malek, Z. ; Haddad, A. ; German, D.M. ; Waters, R.T.
Author_Institution :
Cardiff Univ., UK
Abstract :
The breakdown characteristics of various gaps are measured with and without a surge arrester in the circuit. Changes in the spark gap breakdown characteristics were observed when tested with the arrester in parallel and when subjected to various impulse shapes. A circuit model for the configuration is derived from these experimental results. Analysis of a proposed model for the voltage-time characteristics of the spark gap is presented. Simulation of the circuit model was conducted using EMTP, and showed agreement with the test data
Keywords :
zinc compounds; EMTP; ZnO; ZnO surge arresters; breakdown characteristics; circuit model simulation; computer simulation; impulse shapes; insulation coordination; spark gap breakdown characteristics; spark gaps; voltage-time characteristics;
Conference_Titel :
High Voltage Engineering, 1999. Eleventh International Symposium on (Conf. Publ. No. 467)
Conference_Location :
London
Print_ISBN :
0-85296-719-5
DOI :
10.1049/cp:19990676
