Title :
On the Assessment of New Gaseous Dielectrics for GIS
Author_Institution :
Department of Physics, The Technical University
Abstract :
The assessment of prospective new gaseous dielectrics for GIS is discussed. It is shown that a preliminary assessment of the insulating properties of a new gas can be undertaken from a knowledge of (E/p) and a figure of merit M. These parameters can be obtained from a precision measurement of the linear part of the Paschen curve. A suitable electrode profile is discussed. Measurements of (E/p)lim and M for SF6/N2 mixtures are reported.
Keywords :
Dielectric measurements; Dielectrics and electrical insulation; Electrons; Gas insulation; Gases; Geographic Information Systems; Ionization; Societies; Substations; Sulfur hexafluoride;
Journal_Title :
Power Apparatus and Systems, IEEE Transactions on
DOI :
10.1109/TPAS.1985.318803