Title :
A new concept in post-arc analysis applied to power circuit-breakers
Author :
St-Jean, Guy ; Landry, Michel ; Leclerc, Marc ; Chénier, André
Author_Institution :
IREQ, Varennes, Que., Canada
fDate :
7/1/1988 12:00:00 AM
Abstract :
A computer-aided technique that provides an adequate model of the post-arc resistance of circuit breakers is reported. It is based mainly on precise measurement of post-arc current and appropriate representation of arc resistance using a modified Mayr model in which the parameters are evaluated from test data by dedicated computer software. Successfully used to predict failures during the thermal-recovery period on full-sized 200 kV air-blast and SF6 circuit breakers, this technique promises to provide valuable assistance in circuit-breaker development
Keywords :
air blast circuit breakers; circuit-breaking arcs; electric current measurement; electrical engineering computing; gaseous insulation; sulphur compounds; 200 kV; Mayr model; SF6 circuit breakers; air-blast circuit breakers; computer software; computer-aided technique; post-arc analysis; post-arc current; post-arc resistance; power circuit-breakers; thermal-recovery period; Circuit testing; Control systems; Current measurement; Impedance; Optical control; Optical fiber communication; Optical fiber testing; Sulfur hexafluoride; System testing; Voltage measurement;
Journal_Title :
Power Delivery, IEEE Transactions on
