KR101074324B1 - 초전도 전력케이블의 고장 검출방법 - Google Patents
초전도 전력케이블의 고장 검출방법 Download PDFInfo
- Publication number
- KR101074324B1 KR101074324B1 KR1020080098067A KR20080098067A KR101074324B1 KR 101074324 B1 KR101074324 B1 KR 101074324B1 KR 1020080098067 A KR1020080098067 A KR 1020080098067A KR 20080098067 A KR20080098067 A KR 20080098067A KR 101074324 B1 KR101074324 B1 KR 101074324B1
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- KR
- South Korea
- Prior art keywords
- power cable
- superconducting power
- failure
- current
- layer
- Prior art date
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
- G01R33/1238—Measuring superconductive properties
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
Description
Claims (1)
- 초전도 선재로 이루어진 통전층과 쉴드층을 포함하여 구성된 초전도 전력케이블의 고장 검출방법에 있어서,상기 통전층과 쉴드층의 유도전류비 (Is/Ic)x100(Is는 쉴드층의 유도전류, Ic는 통전층의 유도전류)를 측정하여, Is=Ic를 만족할 수 있도록 보호계전기에서 정정을 하는 것으로, 상기 보호계전기에서 정정되어진 정상 운전 상태의 유도전류비와, 초전도 전력케이블에서 측정된 전류의 차만큼 비교를 통해 초전도 전력케이블의 고장을 검출하는 것을 특징으로 하는 초전도 전력케이블의 고장 검출방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080098067A KR101074324B1 (ko) | 2008-10-07 | 2008-10-07 | 초전도 전력케이블의 고장 검출방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080098067A KR101074324B1 (ko) | 2008-10-07 | 2008-10-07 | 초전도 전력케이블의 고장 검출방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20100038907A KR20100038907A (ko) | 2010-04-15 |
KR101074324B1 true KR101074324B1 (ko) | 2011-10-17 |
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Application Number | Title | Priority Date | Filing Date |
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KR1020080098067A KR101074324B1 (ko) | 2008-10-07 | 2008-10-07 | 초전도 전력케이블의 고장 검출방법 |
Country Status (1)
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KR (1) | KR101074324B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018084354A1 (ko) * | 2016-11-04 | 2018-05-11 | 한국전력공사 | 전력 계통의 보호 시스템 및 이의 동작 방법 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100470895B1 (ko) | 2002-10-30 | 2005-03-10 | 한국전력공사 | 초전도 선재를 이용한 고온초전도 케이블의 상변화 전압검출시스템 |
KR100738186B1 (ko) | 2006-01-18 | 2007-07-10 | 엘에스전선 주식회사 | 초전도 케이블 코어의 실드층 상변화 검출 장치 |
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2008
- 2008-10-07 KR KR1020080098067A patent/KR101074324B1/ko active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100470895B1 (ko) | 2002-10-30 | 2005-03-10 | 한국전력공사 | 초전도 선재를 이용한 고온초전도 케이블의 상변화 전압검출시스템 |
KR100738186B1 (ko) | 2006-01-18 | 2007-07-10 | 엘에스전선 주식회사 | 초전도 케이블 코어의 실드층 상변화 검출 장치 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018084354A1 (ko) * | 2016-11-04 | 2018-05-11 | 한국전력공사 | 전력 계통의 보호 시스템 및 이의 동작 방법 |
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Publication number | Publication date |
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KR20100038907A (ko) | 2010-04-15 |
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