Switching impulse discharge characteristics of UHV transmission line air gaps

2019 ◽  
Vol 14 (5) ◽  
pp. 735-741 ◽  
Author(s):  
Jiachen Gao ◽  
Linong Wang ◽  
Qiushi Zhang ◽  
Bin Song ◽  
Kai Liu ◽  
...  
Keyword(s):  
Transmission Line ◽  
Discharge Characteristics ◽  
Air Gaps ◽  
Impulse Discharge

scholarly journals Modeling of Positive Switching Impulse Discharge of UHV Transmission Line Air Gaps

2018 ◽  
Vol 8 (12) ◽  
pp. 2594 ◽  
Author(s):  
Jiachen Gao ◽  
Linong Wang ◽  
Qiushi Zhang ◽  
Bin Song
Keyword(s):  
Transmission Line ◽  
Breakdown Voltage ◽  
Transmission Lines ◽  
Test Results ◽  
Discharge Characteristics ◽  
Air Gaps ◽  
Impulse Discharge ◽  
Discharge Model ◽  
Important Basis ◽  
Uhv Transmission Lines

Positive switching impulse discharge characteristics are an important basis for the external insulation design of transmission line towers. At present, the characteristics are obtained mainly by real tower discharge tests. Since the existing research on the discharge model is not perfect, test designs are not reasonable, which results in high costs. The influence of line height and tower width on the discharge characteristics of Ultra High Voltage (UHV) transmission lines air gaps is studied in this paper. The results show that the line height had little influence on the breakdown voltage of air gaps in UHV transmission lines. A tower-width discharge model was obtained by fitting the breakdown voltage of air gaps with different gap lengths and tower widths. By analyzing the gap characteristic factors of different transmission lines, a discharge model of different tower air gaps in UHV transmission lines was presented. The breakdown voltage calculated by the models was in good agreement with the test results, and the errors were not more than 5%.

scholarly journals A Modified Model for Discharge Voltage of AC Transmission Line-Tower Air Gaps

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 71472-71480 ◽  
Author(s):  
Yaqi Fang ◽  
Linong Wang ◽  
Rui Li ◽  
Qiushi Zhang ◽  
Jiachen Gao ◽  
...  
Keyword(s):  
Transmission Line ◽  
Discharge Voltage ◽  
Modified Model ◽  
Air Gaps ◽  
Ac Transmission

scholarly journals Discharge voltage prediction of UHV AC transmission line–tower air gaps by a machine learning model

2019 ◽  
Vol 2019 (16) ◽  
pp. 3140-3144
Author(s):  
Zhibin Qiu ◽  
Jiangjun Ruan ◽  
Qi Jin ◽  
Xuezong Wang ◽  
Shengwen Shu
Keyword(s):  
Machine Learning ◽  
Transmission Line ◽  
Learning Model ◽  
Discharge Voltage ◽  
Air Gaps ◽  
Machine Learning Model ◽  
Ac Transmission

scholarly journals Laser-Guided Discharge Characteristics of Long Air Gaps and Observation of the Discharge Progressing Feature

1992 ◽  
Vol 112 (8) ◽  
pp. 668-676
Author(s):  
Yoshinori Aihara ◽  
Takatoshi Shindo ◽  
Megumu Miki ◽  
Toshio Suzuki
Keyword(s):  
Discharge Characteristics ◽  
Air Gaps
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