KR20090095860A - 웨이블릿 변환을 이용한 누전점 검출 방법 - Google Patents
웨이블릿 변환을 이용한 누전점 검출 방법 Download PDFInfo
- Publication number
- KR20090095860A KR20090095860A KR1020080021060A KR20080021060A KR20090095860A KR 20090095860 A KR20090095860 A KR 20090095860A KR 1020080021060 A KR1020080021060 A KR 1020080021060A KR 20080021060 A KR20080021060 A KR 20080021060A KR 20090095860 A KR20090095860 A KR 20090095860A
- Authority
- KR
- South Korea
- Prior art keywords
- line
- load
- capacity
- leakage
- leakage current
- Prior art date
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Classifications
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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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
-
- 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
- G01R19/145—Indicating the presence of current or voltage
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
-
- 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
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
Description
선로임피던스 (실제값) | 선로임피던스 (계산값) | 실제거리 (m) | 측정거리 (m) | 오차율 (%) |
0.002645 | 0.002866 | 10 | 10.84 | 7.72 |
0.005290 | 0.005607 | 20 | 21.20 | 5.56 |
0.007935 | 0.008415 | 30 | 31.82 | 5.71 |
0.010580 | 0.011929 | 40 | 45.10 | 11.31 |
0.013220 | 0.014738 | 50 | 55.72 | 10.30 |
0.015870 | 0.017220 | 60 | 65.10 | 7.84 |
0.018510 | 0.01803 | 70 | 68.17 | -2.66 |
0.021160 | 0.022512 | 80 | 85.11 | 6.01 |
0.023800 | 0.025768 | 90 | 97.42 | 7.64 |
Claims (4)
- 제1항에 있어서, 상기 전체 부하의 용량(Ztotal)은 선로 임피던스를 포함하며, 상기 부하의 용량(Zload)은 실제 사용되는 부하의 용량인 것을 특징으로 하는 웨이블릿 변환을 이용한 누전점 검출 방법.
- 제1항에 있어서, 상기 선로정수는 EMTP(Electro-magnetic Transients Program)를 이용하여 구하는 것을 특징으로 하는 웨이블릿 변환을 이용한 누전점 검출 방법.
- 제1항에 있어서, 상기 선로정수는 임피던스(R+jX) 성분으로 산출하고, 선로정수의 임피던스와 단위를 맞추기 위하여, 누설전류(Zleak), 전체 부하의 용량(Ztotal), 부하의 용량(Zload)의 값들을 임피던스로 환산하여 계산하는 것을 특징으로 하는 웨이블릿 변환을 이용한 누전점 검출 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080021060A KR100951819B1 (ko) | 2008-03-06 | 2008-03-06 | 웨이블릿 변환을 이용한 누전점 검출 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080021060A KR100951819B1 (ko) | 2008-03-06 | 2008-03-06 | 웨이블릿 변환을 이용한 누전점 검출 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20090095860A true KR20090095860A (ko) | 2009-09-10 |
KR100951819B1 KR100951819B1 (ko) | 2010-04-08 |
Family
ID=41296134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020080021060A KR100951819B1 (ko) | 2008-03-06 | 2008-03-06 | 웨이블릿 변환을 이용한 누전점 검출 방법 |
Country Status (1)
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KR (1) | KR100951819B1 (ko) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104573245A (zh) * | 2015-01-15 | 2015-04-29 | 国家电网公司 | 一种特高压输电线路中地线损耗的计算方法 |
CN106096161A (zh) * | 2016-06-20 | 2016-11-09 | 国网山东省电力公司电力科学研究院 | 输电线路工频感应电压及电流的仿真计算方法 |
CN106771592A (zh) * | 2017-02-17 | 2017-05-31 | 华中科技大学 | 一种电力系统谐波检测方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100258065B1 (ko) | 1998-04-01 | 2000-06-01 | 이종훈 | 웨이브렛 변환을 이용한 고저항 지락 사고의검출 방법 |
JP2000050488A (ja) | 1998-07-28 | 2000-02-18 | Kansai Tech Corp | 高圧配電線の地絡故障原因判別方法 |
KR100394134B1 (ko) | 2001-02-20 | 2003-08-09 | 학교법인 성균관대학 | 웨이브렛변환을 이용한 고저항 지락사고의 검출방법 및이에 의한 고장거리 측정방법 |
-
2008
- 2008-03-06 KR KR1020080021060A patent/KR100951819B1/ko active IP Right Grant
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104573245A (zh) * | 2015-01-15 | 2015-04-29 | 国家电网公司 | 一种特高压输电线路中地线损耗的计算方法 |
CN104573245B (zh) * | 2015-01-15 | 2018-05-29 | 国家电网公司 | 一种特高压输电线路中地线损耗的计算方法 |
CN106096161A (zh) * | 2016-06-20 | 2016-11-09 | 国网山东省电力公司电力科学研究院 | 输电线路工频感应电压及电流的仿真计算方法 |
CN106771592A (zh) * | 2017-02-17 | 2017-05-31 | 华中科技大学 | 一种电力系统谐波检测方法 |
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KR100951819B1 (ko) | 2010-04-08 |
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