NDLI: ESDD- and DDDG-based assessment of insulator pollution levels in Oman

Content Provider	IEEE Xplore Digital Library
Author	Feilat, E.A. Al-Maqrashi, A.
Copyright Year	2011
Description	Author affiliation: Department of Electrical and Computer Engineering, Sultan Qaboos University, Muscat 123, Oman (Feilat, E.A.; Al-Maqrashi, A.)
Abstract	Several methods are being used to evaluate the site pollution severity (SPS). The degree of pollution is generally determined by measuring equivalent salt deposit density (ESDD) on the insulators surfaces which are removed from existing transmission lines and/or field testing stations. Non-soluble material deposit density (NSDD) is also measured, especially in case that much dust or sand is expected to accumulate on the insulator surface. Moreover, pollution level or pollution index (PI) is assessed using directional dust deposit gauge (DDDG). In this paper, the pollution severity and pollution performance of porcelain insulators are measured in different areas with different degrees of pollution by measuring the ESDD and NSDD values. The measurements are conducted on three longrod porcelain insulators with alternating sheds that were removed from three existing towers. Moreover, seven DDDG stations are mounted in several locations with different topographies to evaluate the pollution severity. Based on the values of the ESDD and PI, the field measurements show that some zones are classified as light, others as medium and others as heavy zones of pollution. Accordingly, the corresponding specific creepage distances of the insulators for each zone are determined.
Starting Page	593
Ending Page	596
File Size	207174
Page Count	4
File Format	PDF
ISBN	9781612841182
e-ISBN	9781612841199
DOI	10.1109/IEEEGCC.2011.5752602
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-02-19
Publisher Place	United Arab Emirates
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	NSDD High voltage insulators Surface contamination Pollution severity Conductivity Insulators Transmission line measurements Water pollution Pollution measurement DDDG ESDD
Content Type	Text
Resource Type	Article

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