Continuous Recording of Outdoor Insulator Surface Conductance

1 December 1972

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Electrical Insulation

Vol. EI-7 (4) , 169-175
https://doi.org/10.1109/TEI.1972.299220

Abstract

Surface conductance of outdoor insulators exposed to pollution and moisture from rain or fog is related to two aspects of insulator application: 1) possibility of insulator flashover and 2) duration and severity of surface arc discharges. This paper will discuss some of the experience with monitoring the surface conductance of porcelain and synthetic insulation under voltage stress and exposed to outdoor weathering in various locations in the U. S. Simple flat surfaces mounted at a 30° angle from the horizontal and some shed-type insulators have been followed in this study. Recordings have been made over periods of several years, comparing results with low and high voltage stress. Results of these outdoor tests are also compared with results of tests of similar surfaces in a synthetic salt-fog chamber.

Keywords

This publication has 2 references indexed in Scilit:

A New Contamination Test Method
IEEE Transactions on Power Apparatus and Systems, 1969
Research on the performance of high-voltage insulators in polluted atmospheres
Proceedings of the IEE - Part A: Power Engineering, 1960