WO2007004698A1 - Dispositif et procédé de détection de courant de fuite - Google Patents

Dispositif et procédé de détection de courant de fuite Download PDF

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Publication number
WO2007004698A1
WO2007004698A1 PCT/JP2006/313505 JP2006313505W WO2007004698A1 WO 2007004698 A1 WO2007004698 A1 WO 2007004698A1 JP 2006313505 W JP2006313505 W JP 2006313505W WO 2007004698 A1 WO2007004698 A1 WO 2007004698A1
Authority
WO
WIPO (PCT)
Prior art keywords
leakage current
voltage
noise component
detected
current detection
Prior art date
Application number
PCT/JP2006/313505
Other languages
English (en)
Japanese (ja)
Inventor
Yasumasa Kondou
Shinichi Nakayama
Tatsuhiko Komiya
Original Assignee
Sbc Corporation
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 Sbc Corporation filed Critical Sbc Corporation
Priority to JP2007523446A priority Critical patent/JP5216958B2/ja
Publication of WO2007004698A1 publication Critical patent/WO2007004698A1/fr

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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

Definitions

  • the present invention relates to a leakage current detection apparatus and method for determining an insulation state of an electrical device by measuring a leakage current and a voltage fundamental wave flowing in an electric line, and in particular, flowing in a measured electric line.
  • the present invention relates to a leakage current detection apparatus and method for detecting leakage currents of a ground insulation resistance component and a ground capacitance component.
  • leakage current which is closely related to poor insulation of electrical circuits and equipment.
  • investigating this leakage current requires a lot of time, and it is necessary to measure the value of insulation failure with an insulation resistance meter after a power failure.
  • computers are used in various areas of society, and a system that operates continuously for 24 hours has been constructed by expanding the use of intelligent buildings and factory automation (FA). In order to measure the leakage current, it is temporarily impossible to make a power outage.
  • FA factory automation
  • leakage current measurement that can be measured without turning off electricity from the method of insulation resistance meter with electric power failure management of electric circuits and equipment. Has been moved to the earth leakage circuit breaker and earth leakage fire alarm

Landscapes

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

Abstract

La présente invention concerne un dispositif de détection de courant de fuite destiné à détecter un courant de fuite se produisant sur une ligne électrique à l’essai et dû à la capacité relative à la masse. Un courant de fuite I est détecté à partir d’une ligne électrique (A) à l’essai, et le courant de fuite détecté I est amplifié par un premier circuit amplificateur (11). Le signal amplifié par le premier circuit amplificateur (11) est davantage amplifié par un second circuit amplificateur (13). Sur la base du signal amplifié par le premier circuit (11) et de celui amplifié par le premier et le second circuit (11, 13), un multiplexeur (20) sélectionne un signal le mieux adapté en tant qu’entrée d’un convertisseur A/N (21). Une tension appliquée à la ligne électrique (A) à l’essai est détectée et la tension détectée est divisée, puis le multiplexeur (20) sélectionne un signal le mieux adapté en tant qu’entrée d’un convertisseur A/N (21). Sur la base du signal numérique converti par le convertisseur A/N (21), un circuit arithmétique (22) réalise un calcul prédéterminé, ce qui permet de détecter un courant de fuite Igc dû à la capacité relative à la masse.
PCT/JP2006/313505 2005-07-06 2006-07-06 Dispositif et procédé de détection de courant de fuite WO2007004698A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007523446A JP5216958B2 (ja) 2005-07-06 2006-07-06 漏洩電流検出装置及び漏洩電流検出方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005-197949 2005-07-06
JP2005197949 2005-07-06

Publications (1)

Publication Number Publication Date
WO2007004698A1 true WO2007004698A1 (fr) 2007-01-11

Family

ID=37604555

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2006/313505 WO2007004698A1 (fr) 2005-07-06 2006-07-06 Dispositif et procédé de détection de courant de fuite

Country Status (3)

Country Link
JP (1) JP5216958B2 (fr)
TW (1) TW200710406A (fr)
WO (1) WO2007004698A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101931209A (zh) * 2009-06-23 2010-12-29 施耐德电器工业公司 发信电气故障的设备和方法、包含该设备的单元和配电板
AU2008236562B2 (en) * 2007-04-10 2013-11-07 Exelixis, Inc. Methods of treating cancer using pyridopyrimidinone inhibitors of PI3K alpha
TWI425731B (fr) * 2010-11-02 2014-02-01
JP2018128270A (ja) * 2017-02-06 2018-08-16 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
CN115951262A (zh) * 2023-03-13 2023-04-11 青岛鼎信通讯股份有限公司 一种应用于电力台区的自然故障漏电流检测方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI512310B (zh) * 2012-12-24 2015-12-11 Foxnum Technology Co Ltd 三相電源異常偵測裝置
JP5631444B1 (ja) * 2013-05-27 2014-11-26 タナシン電機株式会社 漏洩電流算出装置及び漏洩電流算出方法
US9239586B2 (en) 2013-12-04 2016-01-19 Industrial Technology Research Institute Leakage-current start-up reference circuit
JP5770903B1 (ja) * 2014-09-26 2015-08-26 タナシン電機株式会社 漏洩電流算出装置及び漏洩電流算出方法
KR101877799B1 (ko) * 2017-12-28 2018-07-13 에이디파워 주식회사 활선 절연 저항 측정 장치
JP7043367B2 (ja) * 2018-08-09 2022-03-29 株式会社日立製作所 電気機械の診断装置および診断方法、並びに回転電機
TWI762235B (zh) * 2021-03-12 2022-04-21 台達電子工業股份有限公司 用於電動載具的絕緣電阻檢測系統及其絕緣電阻檢測方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004012147A (ja) * 2002-06-03 2004-01-15 Kawamura Electric Inc 絶縁監視装置及び絶縁監視方法
JP2005062124A (ja) * 2003-08-20 2005-03-10 Chugoku Electric Power Co Inc:The 電線又はケーブルの絶縁劣化領域診断システム及び方法
JP2005140532A (ja) * 2003-11-04 2005-06-02 Toyoji Ahei 位相角度算出装置及び方法、漏洩電流検出装置及び方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004012147A (ja) * 2002-06-03 2004-01-15 Kawamura Electric Inc 絶縁監視装置及び絶縁監視方法
JP2005062124A (ja) * 2003-08-20 2005-03-10 Chugoku Electric Power Co Inc:The 電線又はケーブルの絶縁劣化領域診断システム及び方法
JP2005140532A (ja) * 2003-11-04 2005-06-02 Toyoji Ahei 位相角度算出装置及び方法、漏洩電流検出装置及び方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2008236562B2 (en) * 2007-04-10 2013-11-07 Exelixis, Inc. Methods of treating cancer using pyridopyrimidinone inhibitors of PI3K alpha
CN101931209A (zh) * 2009-06-23 2010-12-29 施耐德电器工业公司 发信电气故障的设备和方法、包含该设备的单元和配电板
TWI425731B (fr) * 2010-11-02 2014-02-01
JP2018128270A (ja) * 2017-02-06 2018-08-16 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
CN115951262A (zh) * 2023-03-13 2023-04-11 青岛鼎信通讯股份有限公司 一种应用于电力台区的自然故障漏电流检测方法

Also Published As

Publication number Publication date
TWI299792B (fr) 2008-08-11
JPWO2007004698A1 (ja) 2009-01-29
JP5216958B2 (ja) 2013-06-19
TW200710406A (en) 2007-03-16

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