Title :
New 145 kV dead tank spring operated circuit breaker
Author :
Royle, D.J. ; Penfold, A.R.
Author_Institution :
GEC Alsthom T&D Transmission Switchgear Ltd., UK
Abstract :
The authors describe a new dead tank SF6 circuit breaker which can be used as a replacement for bulk oil circuit breakers as well in a new substations. It utilises a modern SF6 single pressure design and a spring mechanism of known reliability. The circuit breaker incorporates slip-over current transformers and has a 40 kA short circuit capability. The circuit breaker is the result of a common development for both the USA and UK
Keywords :
SF-6 insulation; design engineering; gas blast circuit breakers; gas insulated switchgear; power system protection; substations; 145 kV; 40 kA; dead tank circuit breaker; development; reliability; short circuit capability; single pressure design; slip-over current transformers; spring mechanism; substations;
Conference_Titel :
Trends in Distribution Switchgear, 1994., Fourth International Conference on
Conference_Location :
London
Print_ISBN :
0-85296-624-5
DOI :
10.1049/cp:19941077
