A new concept in post-arc analysis applied to power circuit-breakers
- 1 July 1988
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Delivery
- Vol. 3 (3) , 1036-1044
- https://doi.org/10.1109/61.193884
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 SF/sub 6/ circuit breakers, this technique promises to provide valuable assistance in circuit-breaker development.Keywords
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