TY - GEN
T1 - Influence of Nozzle Expansion Angle on the Breaking Performance of Ultra-high Voltage SF6 Circuit Breaker
AU - Zhang, Hao
AU - Yao, Yongqi
AU - Guo, Yujing
AU - Wang, Zhijun
AU - Zhang, Bo
AU - Liu, Yapei
AU - Du, Yingqian
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/5
Y1 - 2019/5
N2 - In order to ensure that the ultra-high voltage SF6 circuit breaker has good breaking performance, the two nozzle structures respectively using one expansion angle and two expansion angles are designed. The flow field distribution during the breaker breaking process is obtained by numerical simulation, and the influence of the two kinds of expansion angle design structures on the breaking performance are compared and analyzed. The several different design structures of one expansion angle are also researched, and the recommended interrupter structure is verified by short-circuit breaking test. The results of simulation and test show that, compared with the two expansion angle structure, the interrupter using one expansion angle structure has better breaking performance, which is of great significance to the design of ultra-high voltage SF6 circuit breaker nozzle.
AB - In order to ensure that the ultra-high voltage SF6 circuit breaker has good breaking performance, the two nozzle structures respectively using one expansion angle and two expansion angles are designed. The flow field distribution during the breaker breaking process is obtained by numerical simulation, and the influence of the two kinds of expansion angle design structures on the breaking performance are compared and analyzed. The several different design structures of one expansion angle are also researched, and the recommended interrupter structure is verified by short-circuit breaking test. The results of simulation and test show that, compared with the two expansion angle structure, the interrupter using one expansion angle structure has better breaking performance, which is of great significance to the design of ultra-high voltage SF6 circuit breaker nozzle.
KW - Breaking Performance
KW - Nozzle Expansion
KW - SF Circuit Breaker
KW - Ultra-high Voltage
UR - https://www.scopus.com/pages/publications/85074945128
U2 - 10.1109/ISGT-Asia.2019.8881137
DO - 10.1109/ISGT-Asia.2019.8881137
M3 - Conference contribution
AN - SCOPUS:85074945128
T3 - 2019 IEEE PES Innovative Smart Grid Technologies Asia, ISGT 2019
SP - 950
EP - 953
BT - 2019 IEEE PES Innovative Smart Grid Technologies Asia, ISGT 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE PES Innovative Smart Grid Technologies Asia, ISGT 2019
Y2 - 21 May 2019 through 24 May 2019
ER -