DocumentCode
3799110
Title
Correction of Switching Impulse Flashover Voltages for Air Humidity
Author
Jaroslav Kucera;Vaclav Fiklik
Author_Institution
Power Research Institute
Issue
3
fYear
1970
Firstpage
441
Lastpage
447
Abstract
Long time measurements on rod gaps are described. The statistical evaluation of results is followed by the extraction of the influence of air humidity upon two waves in the region of minimum flashover voltages. The corrections decrease with increasing spacing of gaps in a way similar to the corrections for air densities. Therefore, the IEC correction can be applied only for spacing below 1.5 meters. No substantial difference between rod-plane and rod-rod spark gap for positive waves has been observed. About 250 S curves have been evaluated.
Keywords
"Flashover","Voltage","Humidity measurement","Temperature","Pressure measurement","Laboratories","IEC standards","Time measurement","Sparks"
Journal_Title
IEEE Transactions on Power Apparatus and Systems
Publisher
ieee
ISSN
0018-9510
Type
jour
DOI
10.1109/TPAS.1970.292721
Filename
4074070
Link To Document