Critical switching impulse breakdown of long bundle-conductor gaps

The paper presents a generalized physical approach to account for the effect of bundle geometry on critical switching impulse strength of long air gaps. The model covers phase-to-ground as well as phase-to-phase insulation. It has been applied to conventional symmetrical bundles as well as to more c...

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Bibliographic Details
Published inIEEE transactions on power delivery Vol. 11; no. 1; pp. 373 - 383
Main Author Rizk, F.A.M.
Format Journal Article
LanguageEnglish
Published IEEE 01.01.1996
Subjects
Air gaps
Conductors
Electric breakdown
Geometry
Impulse testing
Insulation testing
Leg
Performance evaluation
Power & Energy Society
Printing
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Summary:The paper presents a generalized physical approach to account for the effect of bundle geometry on critical switching impulse strength of long air gaps. The model covers phase-to-ground as well as phase-to-phase insulation. It has been applied to conventional symmetrical bundles as well as to more complex open configurations. The effect of bundle conductors was investigated for the following basic configurations: conductor-plane; conductor-rod; conductor-tower leg; conductor-tower window; and phase-to-phase, within a wide range of clearances. The model is compared with previous analytical approaches as well as to extensive experimental results.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0885-8977
1937-4208
DOI:10.1109/61.484037