Switching Behaviour of a Series Connection of a Vacuum Interrupter and a Gas Circuit Breaker
Keywords:vacuum circuit breaker, gas circuit breaker, hybrid circuit breaker, post-arc current, recovery voltage
AbstractAfter being in the focus of sciences' and industry's research and development activities for many years, the investigation of possible SF6 gas-alternatives has been even more intensified after the revision of the European F-Gas regulation 517/2014. As natural gases yield a significantly lower dielectric strength in comparison to SF6, new challenges arise for the design of high voltage switchgear. Vacuum interrupters are environmentally friendly, reliable and able to withstand steep rising transient recovery voltages. In the last years, first installations of switchgear based on vacuum switching technology in sub-transmission level are in operation. One option for the realization of a SF6 free high voltage switchgear for transmission level is the combination of a gas circuit breaker filled with an atmospheric gas with a vacuum interrupter in a hybrid switchgear. In this contribution the voltage distribution and switching behavior of a hybrid circuit breaker is experimentally investigated.
K. Natsui et al. Voltage distribution characteristics of series connected SF6 gas and vacuum interrupters immediately after large AC current interruption. IEEE Transactions on Power Delivery, 3(1):241–248, 1988. doi:10.1109/61.4251.
R. P. P. Smeets, V. Kertesz, D. Dufournet, D. Penache, and M. Schlaug. Interaction of a vacuum arc with an SF6 arc in a hybrid circuit breaker during high-current interruption. IEEE Transactions on Plasma Science, 35(4):933–938, 2007. doi:10.1109/TPS.2007.896919.
X. Cheng et al. Dynamic dielectric recovery synergy of hybrid circuit breaker with CO2 gas and vacuum interrupters in series. IEEE Transactions on Plasma Science, 45(10):2885–2892, 2017. doi:10.1109/TPS.2017.2743691.
N. Ide, O. Tanaka, S. Yanabu, S. Kaneko, S. Okabe, and Y. Matsui. Interruption characteristics of double-break vacuum circuit breakers. IEEE Transactions on Dielectrics and Electrical Insulation, 15(4):1065–1072, 2008. doi:10.1109/TDEI.2008.4591229.
K. Steinke, M. Lindmayer, and K.-D. Weltmann. Post-arc currents of vacuum interrupters with axial magnetic ﬁeld contacts under high current and voltage stress. In Proceedings ISDEIV, pages 475–480, 2000. doi:10.1109/DEIV.2000.879030.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).