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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국전기전자재료학회 Transactions on Electrical and Electronic Materials Transactions on Electrical and Electronic Materials 제18권 제4호
- 발행연도
- 2017.8
- 수록면
- 207 - 210 (4page)
- DOI
- https://doi.org/10.4313/TEEM.2017.18.4.207
이용수
초록· 키워드
오류제보하기
The suspension arrangement of insulators provides flexibility and assists in power transmission in transmission lines. Theperformance of the insulator string is strongly influenced by the environmental conditions to which it is exposed, its shapeand the inherent material properties of suspension-type insulators. The suspension-type insulators are mostly made fromglass, porcelain and ceramic material due to their high resistivity. Irregularity in charge distribution throughout the porcelaininsulator may lead to accelerated aging and electrical breakdown. A very high and steep lightning impulse voltage may alsocause breakdown of suspension-type insulators. We investigated various material characteristics such as alumina addition,surface morphology, x-ray diffraction pattern and relative density of suspension porcelain insulators manufactured in 1989(36,000 lbs.), 1995 (36,000 lbs.) and 2001 (36,000 lbs.) by the KRI Company for use in 154 kV high power transmission lines.
We compared the material characteristics of these porcelain insulators with that of the top-of-the-line porcelain insulators(36,000 lbs.) manufactured by the NGK Company in 2000. These suspension-type porcelain insulators were exposed to arcand flashover tests to examine their electrical and mechanical strength. It was noted that alumina addition (17 wt.%) forK-2001 was one of the major contributors to the enhancement of the performance of the porcelain insulators and to theirability to withstand very high current generation during the arc test. The porcelain insulators manufactured during 2001 alsoshowed the highest relative density of 95.8% as compared to the other insulators manufactured in 1989 and 1995 respectively94.2% and 91.5%. We also discuss reports of various failure modes of suspension-type porcelain insulators.
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참고문헌 (24)
참고문헌 신청
S. W. Han / 2007 / Electrical Insulation Conference and Electrical Manufacturing Expo :114
Pramuk Unahalekhaka / 2016 / Influences of Relative Humidity on the Electric Field and Potential on Suspension Insulator String / Energy Procedia 89:110~119
William M. Carty / 1998 / Porcelain?Raw Materials, Processing, Phase Evolution, and Mechanical Behavior / Journal of the American Ceramic Society 81(1):3~20
Kenya HAMANO / 1992 / Improvement of Mechanical Strength of Porcelain Bodies by Fine Grinding of Raw Materials / Journal of the Ceramic Society of Japan 100(1164):1066~1069
Muhammad Amin / 2007 / Composite insulators and their aging: An overview / Science in China Series E: Technological Sciences 50(6):697~713
Pramuk Unahalekhaka / 2016 / Influences of Relative Humidity on the Electric Field and Potential on Suspension Insulator String / Energy Procedia 89:110~119
William M. Carty / 1998 / Porcelain?Raw Materials, Processing, Phase Evolution, and Mechanical Behavior / Journal of the American Ceramic Society 81(1):3~20
Kenya HAMANO / 1992 / Improvement of Mechanical Strength of Porcelain Bodies by Fine Grinding of Raw Materials / Journal of the Ceramic Society of Japan 100(1164):1066~1069
Muhammad Amin / 2007 / Composite insulators and their aging: An overview / Science in China Series E: Technological Sciences 50(6):697~713
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