Publication: Düzgün Olmayan Alanda Paravanaların Havanın Delinme Dayanımına Etkisi
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Elektrik Mühendisliği
Electrical Engineering
Electrical Engineering
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Fen Bilimleri Enstitüsü
Institute of Science and Technology
Institute of Science and Technology
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Bu çalışmada, düzgün olmayan alanı sembolize eden çubuk-düzlem elektrot sisteminde, doğru ve endüstriyel frekanslı alternatif gerilimde, elektrotların arasına yerleştirilen paravanaların havanın delinme gerilimi üzerindeki etkilerini incelemek amacıyla boşalma deneyleri yapılmıştır. Deneylerde, havanın delinme geriliminin, elektrot açıklığı, paravanaların konumu, yapısı, boyutları ve geometrisi gibi etkenler ile ilişkisi incelenmiştir. Deneysel çalışmalara ek olarak, bilgisayar ortamında FEMM (Finite Element Method Magnetics) adlı analiz programı ile simülasyon yapılarak, karşılaştırma ve değerlenledirme imkanı sağlanmıştır. Sonuçların kendi içinde ve literatürde yer alan benzer çalışmalar ile büyük ölçüde tutarlılık gösterdiği görülmüştür.
In this study, the effect of insulating barriers on the breakdown voltage of air in inhomogeneous fields is observed. Tests were conducted in order to measure the 50 Hz AC, positive and negative DC breakdown voltage of small air gaps (up to 50 mm) formed by energized rod and grounded plane electrodes with an insulating barrier between them. In addition, the experiments are simulated with FEMM 4.0 (Finite Element Method Magnetics) analysis program in computer. As a result, the maximum flashover voltages were observed when the barriers were positioned at the nearest point to the rod electrode and the small sized barriers become effective in very small air gaps. The test results with negative polarity of the rod were higher than the results of positive polarity tests.
In this study, the effect of insulating barriers on the breakdown voltage of air in inhomogeneous fields is observed. Tests were conducted in order to measure the 50 Hz AC, positive and negative DC breakdown voltage of small air gaps (up to 50 mm) formed by energized rod and grounded plane electrodes with an insulating barrier between them. In addition, the experiments are simulated with FEMM 4.0 (Finite Element Method Magnetics) analysis program in computer. As a result, the maximum flashover voltages were observed when the barriers were positioned at the nearest point to the rod electrode and the small sized barriers become effective in very small air gaps. The test results with negative polarity of the rod were higher than the results of positive polarity tests.
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Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2005
Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2005
Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2005
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İTÜ theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.
İTÜ theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.
Keywords
Düzgün olmayan alan, Paravana, Delinme Gerilimi, Inhomogeneous field, Insulating Barriers, Breakdown voltage
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