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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/12950

Title: Performance of protective rod gaps for medium voltage networks in the presence of dust particles under lightning impulses
Authors: Qurcshi, M.I.
Al-Arainy, A.A.
Malik, N.H
Keywords: Breakdown times; Desert dust storms; Double sided rod gaps; Duplex gaps; Gap breakdown; Insulation coordination; Lightning impulses; Multiple rod gaps; Overvoltage protection; Rod gaps
Issue Date: 1999
Publisher: IEEE Power Engineering Review
Citation: IEEE Power Engineering Review Volume 19, Issue 2, 1999, Page 48
Abstract: Single and multiple rod gaps are used for overvoltage protection of various power system apparatus. These are mostly located outdoors and are subjected to particulate contamination in desert lands. This paper discusses the influence of pollution on the breakdown voltage and breakdown time of protective air gaps. The rod radius and its end profile are changed to find the configuration which is least affected by pollution. In addition, practical protective gaps used across transformer bushings are tested to check their performance in clean and polluted conditions. It is found that such pollution drastically changes the gaps performance. Specific recommendations are made regarding the choice of suitable protective rod gap configuration for arid regions
URI: http://hdl.handle.net/123456789/12950
ISSN: 02721724
Appears in Collections:College of Engineering

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