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Internal Discharges In Cavities In Solid Dielectric Materials
Study investigate and explain the mechanism of breakdown of solid dielectrics containing micro cavities
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Artikel-Nr:
9783848440368
Veröffentl:
2015
Einband:
Paperback
Erscheinungsdatum:
17.12.2015
Seiten:
184
Autor:
Ramadan Aly
Gewicht:
292 g
Format:
220x150x12 mm
Sprache:
Englisch
Beschreibung:
Ramadan Aly Ahmed Abd El-AalAssistant Professor, Department of Electrical EngineeringFaculty of Engineering, Port Said University, Port-said, Egypt.
This work is an investigation and study of the mechanism of internal discharges in micro cavities in solid dielectrics with application to power cables. The magnitude, repetition rate and energy, in micro cavities in solid dielectric samples and electrical cables were studied. The field distribution in these cavities was simulated, modeled and calculated for certain applied voltage. Alternating high voltage at power frequency at room temperature was applied to different materials.The cavity shape, cylindrical or spherical, and its dimensions were changed. The size of the cavity was much smaller than the sample thickness. The cavities location and w.r.t electrodes were changed. The study was done on samples of low density polyethylene (LDPE), polyvinylchloride (P.V.C) and ethylene polypropylene rubber (E.P.R) because of their important industrial applications.