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WO2009002120A3 - Instrument de mesure d'un courant de fuite résistif - Google Patents

Instrument de mesure d'un courant de fuite résistif Download PDF

Info

Publication number
WO2009002120A3
WO2009002120A3 PCT/KR2008/003729 KR2008003729W WO2009002120A3 WO 2009002120 A3 WO2009002120 A3 WO 2009002120A3 KR 2008003729 W KR2008003729 W KR 2008003729W WO 2009002120 A3 WO2009002120 A3 WO 2009002120A3
Authority
WO
WIPO (PCT)
Prior art keywords
leakage current
voltage
outputs
signal generator
amplifier
Prior art date
Application number
PCT/KR2008/003729
Other languages
English (en)
Other versions
WO2009002120A2 (fr
Inventor
Yong Goo Lee
Song Yop Hahn
Original Assignee
Ll Co Ltd
Iksemicon Co Ltd
Yong Goo Lee
Song Yop Hahn
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ll Co Ltd, Iksemicon Co Ltd, Yong Goo Lee, Song Yop Hahn filed Critical Ll Co Ltd
Priority to CN2008800111454A priority Critical patent/CN101663589B/zh
Publication of WO2009002120A2 publication Critical patent/WO2009002120A2/fr
Publication of WO2009002120A3 publication Critical patent/WO2009002120A3/fr

Links

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

L'invention concerne un instrument de mesure d'un courant de fuite résistif par la terre. Un circuit de détection de courant de fuite détecte le courant de fuite composite dans une ligne testée. Un circuit de conversion courant-tension convertit le courant de fuite composite détecté par le circuit de détection de courant de fuite en une tension correspondante, puis sort la tension résultante. Un amplificateur amplifie le signal de sortie du circuit de conversion courant-tension. Un inverseur de phase inverse la phase d'un des signaux de sortie de l'amplificateur. Un générateur de signal de synchronisation détecte la tension dans la ligne testée est génère des signaux de synchronisation. Deux intégrateurs demi-onde reçoivent les signaux de synchronisation en provenance du générateur de signaux de synchronisation et effectuent en alternance l'intégration des signaux de sortie de l'amplificateur sur chaque demi-période. Un circuit d'échantillonnage/maintien reçoit les signaux de synchronisation en provenance du générateur de signaux de synchronisation, effectue en alternance l'échantillonnage des sorties des intégrateurs demi-onde sur chaque demi-période, puis maintient les valeurs correspondant aux sorties pendant une demi-période.
PCT/KR2008/003729 2007-06-28 2008-06-27 Instrument de mesure d'un courant de fuite résistif WO2009002120A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008800111454A CN101663589B (zh) 2007-06-28 2008-06-27 阻性电泄漏电流的测量仪器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2007-0064664 2007-06-28
KR1020070064664A KR100896091B1 (ko) 2007-06-28 2007-06-28 대지저항성 누전전류 측정기

Publications (2)

Publication Number Publication Date
WO2009002120A2 WO2009002120A2 (fr) 2008-12-31
WO2009002120A3 true WO2009002120A3 (fr) 2009-03-12

Family

ID=40186176

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2008/003729 WO2009002120A2 (fr) 2007-06-28 2008-06-27 Instrument de mesure d'un courant de fuite résistif

Country Status (3)

Country Link
KR (1) KR100896091B1 (fr)
CN (1) CN101663589B (fr)
WO (1) WO2009002120A2 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200453295Y1 (ko) * 2009-10-22 2011-04-20 주식회사 에렐 큰 충전전류 전로용 누전차단기
SG186227A1 (en) * 2010-06-07 2013-01-30 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
KR101671638B1 (ko) * 2015-07-13 2016-11-01 김진학 활선상태의 단상 전력선의 대지절연저항 표시 및 경보장치
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)

* Cited by examiner, † Cited by third party
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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08182180A (ja) 1994-12-22 1996-07-12 Tempearl Ind Co Ltd 積分判定回路とそれを利用した抵抗成分漏電検知回路
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
KR100896091B1 (ko) 2009-05-14
CN101663589B (zh) 2012-07-25
KR20090000530A (ko) 2009-01-07
CN101663589A (zh) 2010-03-03
WO2009002120A2 (fr) 2008-12-31

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