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Title: Suppression of very fast transient over voltages in Gas insulated Substations an Experimental Investigation
Researcher: Rao, Jonnakuti V G Rama
Guide(s): Kamakshaiah, S
Amarnath, J
Keywords: Experimental
Upload Date: 25-Jun-2014
University: Jawaharlal Nehru Technological University, Hyderabad
Completed Date: 2013
Abstract: In Gas Insulated Systems (GIS), Very Fast Transient Over voltages (VFTOs) are caused mainly due to switching operations and newlineinternal insulation flashovers. These VFTOs can reach to high amplitude and steepness. The generated VFTO s can also lead to secondary breakdown in GIS. Further they may give rise to electro-magnetic interference (EMI). The VFTOs cause the following effects. The electromagnetic interference effect during Disconnector switching results newlinefailure of electronic and control circuits connected to GIS. Dielectric strength of SF 6 gas is reduced under VFTO, if non-uniform electric field is formed by the metallic particles. VFTOs results failure of insulation of components such as bushings and transformers. The suppression of VFTOs in GIS has been a long standing problem. newline
Pagination: 365 p.
Appears in Departments:Department of Electrical and Electronics Engineering

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01_title.pdfAttached File126.43 kBAdobe PDFView/Open
02_certificate.pdf122.68 kBAdobe PDFView/Open
03_acknowledgement.pdf50.57 kBAdobe PDFView/Open
04_abstract.pdf48.57 kBAdobe PDFView/Open
05_contents.pdf32.95 kBAdobe PDFView/Open
06_list of figures.pdf81.18 kBAdobe PDFView/Open
07_list of tables.pdf41.16 kBAdobe PDFView/Open
08_list of symbols.pdf57.43 kBAdobe PDFView/Open
09_nomenclature.pdf62.89 kBAdobe PDFView/Open
10_chapter 1.pdf334.92 kBAdobe PDFView/Open
11_chapter 2.pdf110.79 kBAdobe PDFView/Open
12_chapter 3.pdf890.35 kBAdobe PDFView/Open
13_chapter 4.pdf2.85 MBAdobe PDFView/Open
14_chapter 5.pdf4.27 MBAdobe PDFView/Open
15_chapter 6.pdf394.98 kBAdobe PDFView/Open
16_chapter 7.pdf135.67 kBAdobe PDFView/Open
17_references.pdf146.55 kBAdobe PDFView/Open
18_appendix.pdf172.46 kBAdobe PDFView/Open
19_journal paprer.pdf240.85 kBAdobe PDFView/Open

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