Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference (한국조명전기설비학회:학술대회논문집)
- 2007.05a
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- Pages.271-273
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- 2007
The Study of Underwater Discharge Characteristics against impulse voltage
임펄스전압에 의한 수중방전특성에 대한 연구
- Lee, Bok-Hee ;
- Choi, Jong-Hyuk ;
- Park, Geon-Hun ;
- Lee, Feng ;
- Kim, Hoe-Gu ;
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Lee, Kang-Soo
;
- Ahn, Chang-Hwan
- Published : 2007.05.10
Abstract
This paper presents the experimental results of underwater discharges in 25 mm point-plane gap caused by impulse voltage. Discharge phenomena were observed by digital cameras and recorded by oscilloscope. As a result, discharge patterns in positive and negative polarity have different shapes according to applied voltage amplitudes. The positive discharge is like root but the negative discharge is similar to bush. As the voltage is increased, the discharge routs are thick and have more branches. Also the time to breakdown is inversely proportional to voltage.
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