Performance of distribution-class surge arresters under dry and artificial pollution conditions

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

This paper presents an experimental investigation of distribution-class surge arrester (SA) performance under dry, clean-fog and salt-fog conditions. Two SA rated 11 kV and three SA rated 33 kV were tested inside a salt-fog chamber to investigate how the internal active material (either zinc oxide/metal oxide "ZnO" or silicon carbide "SiC") and the arrester housing material affect the overall performance under different pollution severities. Tests were conducted on SiC porcelain-, ZnO polymeric- and ZnO silicone rubber- (SiR) housed SA. Both the internal and the external currents were measured for each SA up to its maximum continuous operating voltage (MCOV). Results reveal that new ZnO SiR-housed SA shows its superior performance under salt-fog condition over the other two types tested. On the other hand, aged ZnO SiR-housed SA can have high external current close to that of SiC porcelain-housed SA. New ZnO polymeric-housed SA gives the highest rms external and internal currents under salt-fog condition as its housing material is hydrophobic in nature and has the shortest creepage distance.

Original languageEnglish
Pages (from-to)55-62
Number of pages8
JournalElectrical Engineering
Volume93
Issue number1
DOIs
Publication statusPublished - Mar 2011

Fingerprint

Surge
Fog
Pollution
Silicones
Salts
Rubber
Porcelain
Salt
Internal
Zinc oxide
Silicon carbide
Class
Oxides
Zinc Oxide
Experimental Investigation
Electric potential
Metals
Silicon
Voltage

Keywords

  • Pollution
  • Porcelain
  • Silicon carbide
  • Silicone rubber
  • Surge arresters
  • Zinc oxide

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Applied Mathematics

Cite this

Performance of distribution-class surge arresters under dry and artificial pollution conditions. / Metwally, I. A.

In: Electrical Engineering, Vol. 93, No. 1, 03.2011, p. 55-62.

Research output: Contribution to journalArticle

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