KR100896091B1 - 대지저항성 누전전류 측정기 - Google Patents
대지저항성 누전전류 측정기 Download PDFInfo
- Publication number
- KR100896091B1 KR100896091B1 KR1020070064664A KR20070064664A KR100896091B1 KR 100896091 B1 KR100896091 B1 KR 100896091B1 KR 1020070064664 A KR1020070064664 A KR 1020070064664A KR 20070064664 A KR20070064664 A KR 20070064664A KR 100896091 B1 KR100896091 B1 KR 100896091B1
- Authority
- KR
- South Korea
- Prior art keywords
- leakage current
- earth
- current
- circuit
- signal generator
- Prior art date
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Classifications
-
- 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
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- 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
- G01R27/16—Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line
-
- 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
- G01R27/16—Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line
- G01R27/18—Measuring resistance to earth, i.e. line to ground
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
Claims (1)
- 피측정 전선로(20)로부터 합성 누전전류를 검출하는 누전전류 검출회로(41)와 ; 누전전류 검출회로(41)로부터의 합성 누전전류를 이에 상응하는 전압으로 변환하여 출력하는 전류전압변환회로(42) ; 전류전압변환회로(42)로부터의 출력신호를 증폭하는 증폭기(43) ; 증폭기(43)의 출력신호 위상을 180°로 반전하는 위상반전기(44) ; 피측정 전선로(20)로부터 전압을 검출하여 동기신호를 발생하는 동기신호발생기(45) ; 동기신호발생기(45)로부터 동기신호를 입력받아서 증폭기(43)로부터의 출력신호를 반주기 단위로 적분하는 제1반파적분기(46) ; 동기신호발생기(45)로부터 동기신호를 입력받아서 위상반전기(44)로부터의 출력신호를 반주기 단위로 적분하는 제2반파적분기(47) 및; 동기신호발생기(45)로부터 동기신호를 입력받아서, 반주기 마다 제1·2반파적분기(46,47)의 출력을 교대로 샘플링해서 해당 출력값을 반주기 동안 유지하는 샘플홀드회로(48)로 이루어진 것을 특징으로 하는 대지저항성 누전전류 측정기.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070064664A KR100896091B1 (ko) | 2007-06-28 | 2007-06-28 | 대지저항성 누전전류 측정기 |
PCT/KR2008/003729 WO2009002120A2 (en) | 2007-06-28 | 2008-06-27 | Measuring instrument for a resistive electric leakage current |
CN2008800111454A CN101663589B (zh) | 2007-06-28 | 2008-06-27 | 阻性电泄漏电流的测量仪器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070064664A KR100896091B1 (ko) | 2007-06-28 | 2007-06-28 | 대지저항성 누전전류 측정기 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20090000530A KR20090000530A (ko) | 2009-01-07 |
KR100896091B1 true KR100896091B1 (ko) | 2009-05-14 |
Family
ID=40186176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020070064664A KR100896091B1 (ko) | 2007-06-28 | 2007-06-28 | 대지저항성 누전전류 측정기 |
Country Status (3)
Country | Link |
---|---|
KR (1) | KR100896091B1 (ko) |
CN (1) | CN101663589B (ko) |
WO (1) | WO2009002120A2 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011049299A3 (ko) * | 2009-10-22 | 2011-07-14 | 주식회사 에렐 | 큰 충전전류 전로용 누전차단기 |
KR101671638B1 (ko) * | 2015-07-13 | 2016-11-01 | 김진학 | 활선상태의 단상 전력선의 대지절연저항 표시 및 경보장치 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2577329A4 (en) * | 2010-06-07 | 2018-01-10 | Ampcontrol Pty Ltd | Method for detection of leakage or fault currents from equipment in an electrical power system |
KR101157125B1 (ko) * | 2011-05-04 | 2012-06-22 | 주식회사 유컴테크놀러지 | 저항성 전류 검출 장치 및 검출 방법 |
JP5228128B1 (ja) * | 2012-05-28 | 2013-07-03 | タナシン電機株式会社 | 信号生成装置、測定装置、漏電検出装置及び信号生成方法 |
US8803569B1 (en) | 2013-06-27 | 2014-08-12 | International Business Machines Corporation | Ramp generator using operational amplifier based integration and switched capacitor techniques |
JP6283919B2 (ja) * | 2016-01-12 | 2018-02-28 | パナソニックIpマネジメント株式会社 | 漏電検出装置 |
JP6718394B2 (ja) * | 2017-02-06 | 2020-07-08 | 株式会社日立産機システム | 絶縁監視装置および絶縁監視システム |
JP6460146B2 (ja) | 2017-04-21 | 2019-01-30 | オムロン株式会社 | 漏洩電流算出装置および漏洩電流算出方法 |
CN110794258B (zh) * | 2019-10-28 | 2022-05-06 | 江苏能电科技有限公司 | 电气线路打火检测方法、装置、设备以及存储介质 |
CN111766497B (zh) * | 2020-07-28 | 2023-01-17 | 哈尔滨工业大学 | 一种高精度微弱瞬态电流测试系统及方法 |
CN112526437A (zh) * | 2020-11-27 | 2021-03-19 | 国网湖北省电力有限公司营销服务中心(计量中心) | 一种高压互感器群运行状态实时采集系统 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4558275A (en) * | 1981-04-21 | 1985-12-10 | The Superior Electric Company | Line voltage monitor system |
US6556397B2 (en) | 2000-05-12 | 2003-04-29 | Human El-Tech, Inc. | Device and method for detecting arc fault |
KR200381335Y1 (ko) | 2005-01-18 | 2005-04-12 | 주식회사 텔코코리아 | 전자식 누전 차단기 |
US20060109009A1 (en) | 2004-11-19 | 2006-05-25 | Esw-Extel Systems Wedel Gesellschaft Fuer Ausruestung Mbh | Method and device for the detection of fault current arcing in electric circuits |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2399735Y (zh) * | 1999-08-18 | 2000-10-04 | 屠亚奇 | 电脑控制绝缘监测装置 |
CN2847308Y (zh) * | 2005-07-08 | 2006-12-13 | 河海大学常州校区 | 避雷器的泄漏电流检测仪的电路装置 |
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2007
- 2007-06-28 KR KR1020070064664A patent/KR100896091B1/ko active IP Right Grant
-
2008
- 2008-06-27 WO PCT/KR2008/003729 patent/WO2009002120A2/en active Application Filing
- 2008-06-27 CN CN2008800111454A patent/CN101663589B/zh not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4558275A (en) * | 1981-04-21 | 1985-12-10 | The Superior Electric Company | Line voltage monitor system |
US6556397B2 (en) | 2000-05-12 | 2003-04-29 | Human El-Tech, Inc. | Device and method for detecting arc fault |
US20060109009A1 (en) | 2004-11-19 | 2006-05-25 | Esw-Extel Systems Wedel Gesellschaft Fuer Ausruestung Mbh | Method and device for the detection of fault current arcing in electric circuits |
KR200381335Y1 (ko) | 2005-01-18 | 2005-04-12 | 주식회사 텔코코리아 | 전자식 누전 차단기 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011049299A3 (ko) * | 2009-10-22 | 2011-07-14 | 주식회사 에렐 | 큰 충전전류 전로용 누전차단기 |
KR101671638B1 (ko) * | 2015-07-13 | 2016-11-01 | 김진학 | 활선상태의 단상 전력선의 대지절연저항 표시 및 경보장치 |
Also Published As
Publication number | Publication date |
---|---|
WO2009002120A2 (en) | 2008-12-31 |
WO2009002120A3 (en) | 2009-03-12 |
CN101663589A (zh) | 2010-03-03 |
KR20090000530A (ko) | 2009-01-07 |
CN101663589B (zh) | 2012-07-25 |
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