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Vacuum interrupter for a generator circuit breaker
2013 2nd International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST), 2013Improvements in vacuum interrupters (VI) have led to their increased use in generator circuit breaker (GCB). However, for power applications ≥ 100 MVA, increasing the thermal and short-circuit current rating of a VI is important. This paper discusses the VI design issues on improving the efficiency of its components.
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Diagnostics of the Vacuum Condition in Medium Voltage Vacuum Circuit Breakers
Conference Record of the 2008 IEEE International Symposium on Electrical Insulation, 2008In this paper some results of the field emission current measurements before and immediately after arc polishing of contacts as published in the literature are presented to show how single factors like contact geometry, contact surface, gas composition and pressure influence the results.
M. Koochack-Zadeh, V. Hinrichsen
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Maintenance-free vacuum circuit-breaker
Second International Conference on the Reliability of Transmission and Distribution Equipment, 1995The introduction of vacuum switchgear represented the first step in the direction of a maintenance-free medium-voltage circuit-breaker. Switching in a vacuum was the first quenching principle to assure constant electrical and dielectric properties throughout the device's entire service life of more than 20 years, involving for example more than 100 ...
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Simulation of reignition processes of vacuum circuit breaker in series
Proceedings of 17th International Symposium on Discharges and Electrical Insulation in Vacuum, 1997The present theoretical study is based on experimental investigations and shows the transient behavior of vacuum tubes in series, in the case of reignition. Neglecting the real physical arc and replacing it by a programmable switch (time controlled), it can be demonstrated, in a preliminary study, that the theoretical studies do confirm the ...
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A Contactless Pirani Approach for Vacuum Monitoring in Vacuum Circuit Breakers
IEEE Sensors Journal, 2023Juan F. Sevillano +5 more
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A Hybrid-Approach for Realtime Assessment of the Pressure and Erosion in Vacuum Circuit Breakers
IEEE Transactions on Dielectrics and Electrical Insulation, 2020Mr Fallah, Ali A Razi-Kazemi
exaly
Environmentally Friendly Generator Circuit Breaker Based on Vacuum Switch and Air Circuit Breaker
2023 IEEE 7th Conference on Energy Internet and Energy System Integration (EI2), 2023Weijie Wen +5 more
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