Results 281 to 290 of about 10,897 (316)
Some of the next articles are maybe not open access.
Vacuum Circuit Breakers at Transmission Voltage Level
2021Previously, there was a general idea that all technologies in developing transmission voltage level vacuum circuit breakers were based on medium voltage vacuum circuit breakers. No essentially new technical features were necessary, while it was only an extrapolation in geometry.
Zhiyuan Liu +3 more
openaire +1 more source
Vacuum Circuit Breaker Fault Diagnosis System
Applied Mechanics and Materials, 2012Vacuum circuit breaker becomes more and more complicated, integrated, high-speed and intellectualized. To insure vacuum circuit breaker in its good conditions, the function of fault diagnosis gets more important than before in the process of repairing. This paper designed and developed a network fault diagnosis system based on PROFINET and B/S (Browser/
openaire +1 more source
Vacuum Circuit Breaker Metal-Clad Switchgear
IEEE Transactions on Industry Applications, 1976This paper presents a review of vacuum circuit breakers and metal-clad switchgear for 15 and 34.5 kV applications. It is concerned primarily with a description of the ratings, design features, and application considerations characteristic of vacuum circuit breakers.
openaire +1 more source
Post arc breakdown in vacuum circuit breakers
20th International Symposium on Discharges and Electrical Insulation in Vacuum, 2003The influence of contact out-gassing on late breakdowns has been studied. Results show that strongly delayed breakdowns can occur for conditions corresponding to those of the left hand side of the Paschen curve. Cold gas breakdown delay times are shown to depend directly and precisely on pressure. Delays of up to 100ms are possible.
S.W. Rowe, H. Schellekens
openaire +1 more source
New solution of a vacuum circuit breaker
XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV., 2004To be able to optimise a vacuum circuit breaker one has to pay attention to: - possible short arcing time to reduce the energy dissipated between contacts; - application of a high speed actuator especially for the highest rated voltages; - concentrate on solution of vacuum chambers and contact design generating axial magnetic field (AMF) and the lowest
A. Dzierzynski, H. Sibilski
openaire +1 more source
Capacitor bank switching with vacuum circuit breakers
2008 China International Conference on Electricity Distribution, 2008After interruption of a capacitive current sometimes Non Sustained Disruptive Discharges (NSDDpsilas) are observed when using vacuum circuit breakers. According to network calculations, NSDDpsilas generate significant over-voltage on the terminal of the capacitor bank to earth and across the circuit breaker (CB) terminals. In a full scale experiment at
openaire +1 more source
Hybrid MVDC Circuit Breaker Based on Enhanced Arc Voltage of Vacuum Interrupter
IEEE Transactions on Industrial Electronics, 2022Yifei Wu, Yu Xiao, Yi Wu
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
openaire +1 more source
A new realistic transient model for restrike/prestrike phenomena in vacuum circuit breaker
International Journal of Electrical Power and Energy Systems, 2020Mr Fallah
exaly