Contamination Testing of Arresters for 500-kV Systems

1 March 1968

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

Vol. PAS-87 (3) , 703-712
https://doi.org/10.1109/tpas.1968.292183

Abstract

The effects of external surface contaminants and moisture on the internal sparkover of lightning arresters is of prime concern in the design of extra high voltage (EHV) stations. This paper describes the design and acceptance sparkover and contamination tests performed on several different ratings of a multiunit arrester designed specifically for use on 500-kV systems. The sparkover characteristics were determined for various degrees of surface contamination and several different methods of surface wetting.

Keywords

SYSTEM TESTING
ARRESTERS
SURFACE CONTAMINATION
PORCELAIN
LIGHTNING
MOISTURE
VOLTAGE
PERFORMANCE EVALUATION
LABORATORIES
SPRAYING