TY - GEN
T1 - The characteristics of switching impulses in cable OHL mixed network
AU - Zheng, Jiankang
AU - Yang, Xiaoyu
AU - Xu, Long
AU - Zhao, Aixuan
AU - Zhang, Xing
AU - Deng, Junbo
AU - Zhang, Guanjun
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/7/1
Y1 - 2017/7/1
N2 - In recent years, in order to improve the efficiency of urban power supply, automatic reclosing operation is gradually applied in the XLPE cable-OHL mixed line. Operation experience shows that the grounding fault occurred in the overhead line, in most cases, is instantaneous and the success rate of reclosing is high. The grounding fault occurred in the cable line is almost permanent and the success of reclosing is quite low. In this paper, a typical mixed line of urban power network was built in PSCAD software. The amplitude-frequency characteristics of overvoltage, caused by single-phase grounding fault of cable segment and overhead line segment, were studied. And the characteristic parameters of two kinds of overvoltage were extracted. According to these parameters, the fault location could be determined and the basis of reclosing strategy was provided.
AB - In recent years, in order to improve the efficiency of urban power supply, automatic reclosing operation is gradually applied in the XLPE cable-OHL mixed line. Operation experience shows that the grounding fault occurred in the overhead line, in most cases, is instantaneous and the success rate of reclosing is high. The grounding fault occurred in the cable line is almost permanent and the success of reclosing is quite low. In this paper, a typical mixed line of urban power network was built in PSCAD software. The amplitude-frequency characteristics of overvoltage, caused by single-phase grounding fault of cable segment and overhead line segment, were studied. And the characteristic parameters of two kinds of overvoltage were extracted. According to these parameters, the fault location could be determined and the basis of reclosing strategy was provided.
KW - Amplitude-frequency characteristics
KW - Grounding fault
KW - Mixed line
KW - Reclosing
UR - https://www.scopus.com/pages/publications/85045189350
U2 - 10.1109/CEIDP.2017.8257632
DO - 10.1109/CEIDP.2017.8257632
M3 - 会议稿件
AN - SCOPUS:85045189350
T3 - Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
SP - 233
EP - 236
BT - CEIDP 2017 - IEEE Conference on Electrical Insulation and Dielectric Phenomenon
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2017 IEEE Conference on Electrical Insulation and Dielectric Phenomenon, CEIDP 2017
Y2 - 22 October 2017 through 25 October 2017
ER -