TY - GEN
T1 - Interruption process and droplets emission in vacuum arc for aviation intermediate-frequency power supply system
AU - Yuan, Jiang
AU - Jianwen, Wu
AU - Wenlei, Huo
AU - Bowen, Jia
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/12/12
Y1 - 2017/12/12
N2 - In order to research the interruption process of vacuum circuit breaker in aviation intermediate-frequency (360Hz∼800Hz) power supply system, vacuum arc experiments are carried out in interrupter with the diameter being 41mm and with the contact material being CuCr50 alloy. It can be indicated from the results as follows: With the increase of frequency and peak value of the current, both the peak value and the rise rate of the intermediate-frequency vacuum arc voltage increase, and the interruption ability decreases. However, the erosion of contacts is weaker for a shorter arc time, comparing to the power frequency current in the same value. When the vacuum arc reignites0, metal droplets are emitted from the contacts. The drive force is from the center of the contact to edge. If the density of plasmas and metal vapors and the numbers of the metal droplets come to a certain level, the arc may be broken down, which cause the interruption failed.
AB - In order to research the interruption process of vacuum circuit breaker in aviation intermediate-frequency (360Hz∼800Hz) power supply system, vacuum arc experiments are carried out in interrupter with the diameter being 41mm and with the contact material being CuCr50 alloy. It can be indicated from the results as follows: With the increase of frequency and peak value of the current, both the peak value and the rise rate of the intermediate-frequency vacuum arc voltage increase, and the interruption ability decreases. However, the erosion of contacts is weaker for a shorter arc time, comparing to the power frequency current in the same value. When the vacuum arc reignites0, metal droplets are emitted from the contacts. The drive force is from the center of the contact to edge. If the density of plasmas and metal vapors and the numbers of the metal droplets come to a certain level, the arc may be broken down, which cause the interruption failed.
KW - arc reignition
KW - arc voltage peak value
KW - droplets emission intermediate-frequency vacuum arc
KW - vacuum circuit breaker
UR - https://www.scopus.com/pages/publications/85046882390
U2 - 10.1109/ICEPE-ST.2017.8188903
DO - 10.1109/ICEPE-ST.2017.8188903
M3 - 会议稿件
AN - SCOPUS:85046882390
T3 - ICEPE-ST 2017 - 4th International Conference on Electric Power Equipment- Switching Technology
SP - 540
EP - 545
BT - ICEPE-ST 2017 - 4th International Conference on Electric Power Equipment- Switching Technology
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th International Conference on Electric Power Equipment- Switching Technology, ICEPE-ST 2017
Y2 - 22 October 2017 through 25 October 2017
ER -