KR20050100241A - 전력케이블의 수명판정 방법 - Google Patents
전력케이블의 수명판정 방법 Download PDFInfo
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- KR20050100241A KR20050100241A KR1020040025452A KR20040025452A KR20050100241A KR 20050100241 A KR20050100241 A KR 20050100241A KR 1020040025452 A KR1020040025452 A KR 1020040025452A KR 20040025452 A KR20040025452 A KR 20040025452A KR 20050100241 A KR20050100241 A KR 20050100241A
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- KR
- South Korea
- Prior art keywords
- data
- cable
- insulation resistance
- life
- value
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/02—Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Relating To Insulation (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
Description
시료 | #1 | #2 | #3 | #4 | #5 | #6 | #7 | #8 | 평균 |
초기치(GΩ) | 19.5 | 16.7 | 46.5 | 30.8 | 30.9 | 47 | 27.9 | 27.4 | 25 |
n 값 | 17.7 | 21.7 | 16.8 | 9 | 17.7 | 15 | 10.6 | 18.8 | 15.9 |
경주의(연) | 12.3 | 14.5 | 13.8 | 7.0 | 13.5 | 12.4 | 8 | 14.0 | 12 |
중주의(연) | 17.3 | 20.7 | 18.1 | 9.5 | 18.3 | 16.3 | 10.8 | 19.1 | 16 |
Claims (4)
- 전력케이블의 수명판정 방법에 있어서, 절연저항에 해당하는 측정데이타를 필터링하는 단계, 필터링한 데이터에서 최적데이터를 샘플링하는 단계, 선택한 데이터가 타당한지를 결정하는 데이터 선정 단계, 선택한 데이터를 로그할 경우 선형그래프로 하는 로깅 단계, 변수 a와 b 값을 선정하는 단계 및 위험 절연저항값을 입력하여 수명을 산정하는 단계를 포함하는 것을 특징으로 하는 전력케이블의 수명판정 방법.
- 제 1항에 있어서, 상기 필터링 단계에서 데이터 값은 우기 및 부하전류를 고려하여 절연저항의 최저점 및 일정하게 되는 지점을 선택하여 하절기의 1-3개월의 데이터 값의 평균값인 것을 특징으로 하는 전력케이블의 수명판정 방법.
- 제 1항에 있어서, 상기 로깅단계에서 선형값의 타당성을 판정하기 위한 공식은 Y = aX + b의 공식을 이용하고, 여기서 변수 a는 음수의 값을 갖고, 변수 b는 허용 기준 값은 22kV 케이블의 경우 2.477이고, 6.6kV케이블의 경우에는 1.477이상인 것을 특징으로 하는 전력케이블의 수명판정 방법.
- 3항에 있어서, 상기 공식에 적요되는 변수 a값과 b값은 표준편차가 최저가 되는 값인 것을 특징으로 하는 전력케이블의 수명판정 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040025452A KR100789339B1 (ko) | 2004-04-13 | 2004-04-13 | 전력케이블의 수명판정 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040025452A KR100789339B1 (ko) | 2004-04-13 | 2004-04-13 | 전력케이블의 수명판정 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20050100241A true KR20050100241A (ko) | 2005-10-18 |
KR100789339B1 KR100789339B1 (ko) | 2007-12-28 |
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KR1020040025452A KR100789339B1 (ko) | 2004-04-13 | 2004-04-13 | 전력케이블의 수명판정 방법 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100768388B1 (ko) * | 2005-10-29 | 2007-10-18 | 한국전력공사 | 전력케이블 저항열 시뮬레이션 시스템 |
CN102944777A (zh) * | 2012-10-31 | 2013-02-27 | 广州供电局有限公司 | 电缆使用寿命检测方法 |
KR101330091B1 (ko) * | 2012-09-12 | 2013-11-18 | 이관우 | 운전중인 고전압 케이블의 수명 판정 방법 |
-
2004
- 2004-04-13 KR KR1020040025452A patent/KR100789339B1/ko active IP Right Grant
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100768388B1 (ko) * | 2005-10-29 | 2007-10-18 | 한국전력공사 | 전력케이블 저항열 시뮬레이션 시스템 |
KR101330091B1 (ko) * | 2012-09-12 | 2013-11-18 | 이관우 | 운전중인 고전압 케이블의 수명 판정 방법 |
CN102944777A (zh) * | 2012-10-31 | 2013-02-27 | 广州供电局有限公司 | 电缆使用寿命检测方法 |
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Publication number | Publication date |
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KR100789339B1 (ko) | 2007-12-28 |
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