Full metadata
Title
Influence of grounded back electrode on AC creepage breakdown characteristics
Description
This thesis focuses on the influence of a grounded back electrode on the breakdown characteristics. The back electrode is an electrode which attaches at the back side of solid insulation. Insulation with grounded back electrode is a common type of insulation which is adopted in many high voltage power devices. While most of the power equipment work under AC voltage, most of the research on back electrode is focused on the DC voltage. Therefore, it is necessary to deeply investigate the influence of the back electrode under AC applied voltage. To investigate the influence of back electrode, the research is separated into two phases, which are the experiment phase and the electric field analysis phase. In the experiments, the breakdown voltages for both with and without back electrode are obtained. The experimental results indicate that the grounded back electrode does have impact on the breakdown characteristics. Then with the breakdown voltage, based on real experiment model, the electric field is analyzed using computer software. From the field simulation result, it is found that the back electrode also influences the electric field distribution. The inter relationship between the electric field and breakdown voltage is the key to explain all the results and phenomena observed during the experiment. Additionally, the influence of insulation barrier on breakdown is also investigated. Compared to the case without ground electrode, inserting a barrier into the gap can more significantly improve breakdown voltage.
Date Created
2014
Contributors
- Liu, Jiajun (Author)
- Karady, George G. (Thesis advisor)
- Ayyanar, Raja (Committee member)
- Holbert, Keith E. (Committee member)
- Arizona State University (Publisher)
Topical Subject
Resource Type
Extent
xiv, 122 p. : ill. (some col.)
Language
eng
Copyright Statement
In Copyright
Primary Member of
Peer-reviewed
No
Open Access
No
Handle
https://hdl.handle.net/2286/R.I.24833
Statement of Responsibility
by Jiajun Liu
Description Source
Viewed on July 2, 2014
Level of coding
full
Note
thesis
Partial requirement for: M.S., Arizona State University, 2014
Field of study: Electrical engineering
System Created
- 2014-06-09 02:07:52
System Modified
- 2021-08-30 01:35:50
- 3 years 3 months ago
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