Title :
Testing of vacuum circuit breakers: specific issues and developments
Author :
Smeets, R.P.P. ; Lathouwers, A.G.A.
Author_Institution :
KEMA High Power Lab., Arnhem, Netherlands
Abstract :
In the international standards for medium (and high-) voltage circuit-breakers no distinction is made in test requirements between circuit breakers with different arc-quenching media, like SF6, oil and vacuum. This has led to the necessity to formulate a few additional test-requirements and interpretations that are specific to vacuum circuit breakers (VCB) only. In this contribution, the background and practical application of several procedures, now generally adopted in certifying test-laboratories is elucidated. In addition, results of a new high-resolution high-frequency current-zero measuring system are presented
Keywords :
electric current measurement; switchgear testing; vacuum circuit breakers; arc-quenching media; contact phenomena; high-frequency current-zero measuring system; high-resolution current-zero measuring system; high-voltage circuit-breakers; international standards; medium-voltage circuit-breakers; nonsustained disruptive discharges; test-circuit overvoltages; test-laboratories; transient recovery voltage circuits; vacuum circuit breakers testing; Circuit breakers; Circuit testing; Current measurement; Electric breakdown; Frequency; Grounding; Hafnium; Switchgear; VHF circuits; Voltage;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum, 1998. Proceedings ISDEIV. XVIIIth International Symposium on
Conference_Location :
Eindhoven
Print_ISBN :
0-7803-3953-3
DOI :
10.1109/DEIV.1998.738623
