Ultra High Voltage Direct Current Circuit Breaker. Part I. Performance Requirements and Basic Design

摘要

Basic designs for a high voltage direct current circuit bbreaker (including supplementary equipment) were estimated for the case of a rated voltage of exp +- 500kV, rated current of 1 to 2 kA, an interrupting time of 80ms, and overvoltage multiple of below 1.7, by using a gaseous or liquid SF sub 6 as the arc-quenching medium. A diagram of the measurements of a liquid SF sub 6 circuit breaker (one-pole) is presented. (ERA citation 04:022707)