Influence of surface resistivity of insulation films on penetration phenomenon by negative lightning impulse discharge

2020 ◽  
Author(s):  
Masayuki Mizusaki ◽  
Nobutaka Araoka ◽  
Norimitsu Takamura ◽  
Yuki Sasaki ◽  
Terumasa Ryu ◽  
...  
Keyword(s):  
Surface Resistivity ◽  
Impulse Discharge ◽  
Lightning Impulse

Influence of Surface Resistivity of Insulation Films on Penetration Phenomenon by Negative Lightning Impulse Discharge

2020 ◽  
Vol 140 (7) ◽  
pp. 611-616
Author(s):  
Masayuki Mizusaki ◽  
Nobutaka Araoka ◽  
Norimitsu Takamura ◽  
Yuki Sasaki ◽  
Terumasa Ryu ◽  
...  
Keyword(s):  
Surface Resistivity ◽  
Impulse Discharge ◽  
Lightning Impulse

Photographic Investigations on Lightning Impulse Discharge Phenomena in Soil

2013 ◽  
Vol 133 (12) ◽  
pp. 947-953 ◽  
Author(s):  
Jinliang He ◽  
Jun Yuan ◽  
Bo Zhang
Keyword(s):  
Impulse Discharge ◽  
Lightning Impulse

Test Research on Phase-to-Ground Air-Gap Discharge Characteristics of UHV Substation

2014 ◽  
Vol 492 ◽  
pp. 162-168
Author(s):  
Qi Ming Ye ◽  
Liang Xie ◽  
Xiao Qing Luo ◽  
Feng Huo
Keyword(s):  
Minimum Distance ◽  
Discharge Voltage ◽  
Air Gap ◽  
Test Results ◽  
Discharge Characteristics ◽  
Voltage Rise ◽  
Test Base ◽  
Impulse Discharge ◽  
Lightning Impulse

In order to optimize the design of UHV substation and reduce its construction investment, it is necessary to take further research of UHV substation air-gap discharge characteristics. In this paper, by using sub-conductor and tower to simulate UHV substation air-gap, lightning and switching impulse discharge characteristics tests of UHV substation are taken in the UHV AC test base of SGCC. The results show that, when the distance of conductor between tower is in range of 4m to 7m, the 50% lightning impulse and switching impulse discharge voltage rise along with the rise of air gap distance. As the air-gap increases, the switching impulse discharge voltage presents the trend of saturation. According to the analysis of test results, we can draw a conclusion that the gap factor of switching impulse discharge can be 1.22 when the minimum distance between conductors and tower is 5~8m.

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