DocumentCode
1071485
Title
Analysis of Paschen Curves for air, N2 and SF6 Using the Townsend Breakdown Equation
Author
Husain, E. ; Nema, R.S.
Author_Institution
Department of High Voltage Engineering Indian Institute of Science Bangalore, India
Issue
4
fYear
1982
Firstpage
350
Lastpage
353
Abstract
It has been shown that it is possible to extend the validity of the Townsend breakdown criterion for evaluating the breakdown voltages in the complete pd range in which Paschen curves are available. Evaluation of the breakdown voltages for air (pd=0.0133 to 1400 kPa · cm), N2(pd=0.0313 to 1400 kPa · cm) and SF6 (pd=0.3000 to 1200 kPa · cm) has been done and in most cases the computed values are accurate to ±3% of the measured values. The computations show that it is also possible to estimate the secondary ionization coefficient ¿ in the pd ranges mentioned above.
Keywords
Breakdown voltage; Electric breakdown; Electrodes; Equations; Gas insulation; Gases; Ionization; Space charge; Sulfur hexafluoride; Voltage measurement;
fLanguage
English
Journal_Title
Electrical Insulation, IEEE Transactions on
Publisher
ieee
ISSN
0018-9367
Type
jour
DOI
10.1109/TEI.1982.298506
Filename
4080982
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