Transcription of PERFORMANCE OF VACUUM CIRCUIT-BREAKERS …
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PERFORMANCE OF VACUUM CIRCUIT-BREAKERS …
C I R E D 21st International Conference on Electricity Distribution Frankfurt, 6-9 June 2011 Paper 0439 Paper No 0439 1/4 PERFORMANCE OF VACUUM CIRCUIT-BREAKERS WITH CONTACT bouncing DURING CLOSING Edgar DULLNI Philippe PICOT ABB AG Germany Schneider Electric France ABSTRACT bouncing is a phenomenon often experienced during VACUUM circuit - breaker (VCB) no-load operations. The effect occurs at the moment the interrupter contacts touch each other during closing. It is anticipated that the bouncing duration is somehow correlated with the oscillatory frequencies of the moving parts of the VACUUM interrupter and of the kinematic chain of support and mechanical parts.
C I R E D 21st International Conference on Electricity Distribution Frankfurt, 6-9 June 2011 Paper 0439 Paper No 0439 1/4 PERFORMANCE OF VACUUM CIRCUIT-BREAKERS WITH CONTACT BOUNCING
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