EA201101105A1 - Направленное детектирование короткого замыкания на землю с помощью единственного датчика - Google Patents

Направленное детектирование короткого замыкания на землю с помощью единственного датчика

Info

Publication number
EA201101105A1
EA201101105A1 EA201101105A EA201101105A EA201101105A1 EA 201101105 A1 EA201101105 A1 EA 201101105A1 EA 201101105 A EA201101105 A EA 201101105A EA 201101105 A EA201101105 A EA 201101105A EA 201101105 A1 EA201101105 A1 EA 201101105A1
Authority
EA
Eurasian Patent Office
Prior art keywords
short circuit
earth
help
single sensor
zero
Prior art date
Application number
EA201101105A
Other languages
English (en)
Other versions
EA022653B1 (ru
Inventor
Гийом Верно
Original Assignee
Шнейдер Электрик Эндюстри Сас
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 Шнейдер Электрик Эндюстри Сас filed Critical Шнейдер Электрик Эндюстри Сас
Publication of EA201101105A1 publication Critical patent/EA201101105A1/ru
Publication of EA022653B1 publication Critical patent/EA022653B1/ru

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
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/081—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current and depending on the direction
    • 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
    • G01R19/175—Indicating the instants of passage of current or voltage through a given value, e.g. passage through zero
    • 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
    • G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/34—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system

Landscapes

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

Abstract

Согласно изобретению способ и устройство (20) для направленного детектирования короткого замыкания (10) на землю в многофазной системе (1) электропитания основаны на количестве (N) пересечений нулевого уровня током (I) нулевой последовательности, детектированном после возникновения короткого замыкания (10) и генерируемом высокочастотными помехами паразитных элементов линий и кабелей (4) системы (1) электропитания. Сравнение количества (N) пересечений нулевого уровня тока (I) и его производной (d*) по времени с пороговыми значениями (Z, dZ) позволяет определить местоположение короткого замыкания на стороне нагрузки или на стороне линии устройства (20) без использования измерений напряжения и с помощью единственного датчика (12) тока.
EA201101105A 2010-08-20 2011-08-19 Направленное детектирование короткого замыкания на землю с помощью единственного датчика EA022653B1 (ru)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1003408A FR2963967B1 (fr) 2010-08-20 2010-08-20 Detection directionnelle d'un defaut a la terre avec un seul capteur

Publications (2)

Publication Number Publication Date
EA201101105A1 true EA201101105A1 (ru) 2013-02-28
EA022653B1 EA022653B1 (ru) 2016-02-29

Family

ID=43858179

Family Applications (1)

Application Number Title Priority Date Filing Date
EA201101105A EA022653B1 (ru) 2010-08-20 2011-08-19 Направленное детектирование короткого замыкания на землю с помощью единственного датчика

Country Status (6)

Country Link
EP (1) EP2421110B1 (ru)
KR (1) KR101792884B1 (ru)
CN (1) CN102385020B (ru)
EA (1) EA022653B1 (ru)
ES (1) ES2694767T3 (ru)
FR (1) FR2963967B1 (ru)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2993670B1 (fr) * 2012-07-20 2014-07-11 Schneider Electric Ind Sas Detection directionnelle de defaut terre sensible moyenne tension par correlation lineaire
CN103809070B (zh) * 2012-11-15 2017-11-17 施耐德电器工业公司 基于三相电流变化进行的方向接地故障检测方法和装置
CN103926510B (zh) * 2014-05-12 2016-04-13 国家电网公司 一种电缆护层电流及载流量在线监测和故障诊断定位方法
CN104569729B (zh) * 2015-01-29 2019-05-31 深圳市科陆电子科技股份有限公司 基于故障指示器的配电网单相接地故障检测方法及系统
US9915687B2 (en) * 2015-03-27 2018-03-13 Liebert Corporation Real current meter
WO2016203633A1 (ja) * 2015-06-19 2016-12-22 三菱電機株式会社 漏洩電流検出装置
CN106201462B (zh) * 2016-06-28 2019-04-16 南京国电南自电网自动化有限公司 基于元件库的继电保护装置配置方法
CN108761277A (zh) * 2018-07-26 2018-11-06 国网福建省电力有限公司莆田供电公司 一种电缆接头故障指示器及在线监测系统
CN111736007B (zh) * 2020-05-27 2022-10-11 湖南省湘电试验研究院有限公司 面向高阻接地的线路零序方向过流保护方法、系统及介质
CN113824044B (zh) * 2021-10-29 2023-01-13 凯铭诺(深圳)科技有限公司 一种安全监测直流接地故障保护装置
CN115166585B (zh) * 2022-09-08 2022-11-29 石家庄科林电气股份有限公司 接地故障检测防误判方法、装置及电子设备

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2035816C1 (ru) * 1992-10-19 1995-05-20 Всероссийский научно-исследовательский, проектно-конструкторский и технологический институт релестроения Способ быстродействующей дистанционной защиты линий электропередачи постоянного или переменного тока по мгновенным токам и напряжениям
RU2097893C1 (ru) * 1995-04-28 1997-11-27 Александр Владимирович Малеев Способ направленной защиты от однофазного замыкания на землю в электрической сети переменного тока и устройство для его осуществления
JPH11355955A (ja) * 1998-06-05 1999-12-24 Toko Electric Co Ltd 多分岐配電線における地絡検出装置
DE19940344A1 (de) * 1999-08-25 2001-03-01 Siemens Ag Schutzeinrichtung, insbesondere Fehlerstrom-Schutzeinrichtung
FR2854741B1 (fr) * 2003-05-05 2005-06-24 Schneider Electric Ind Sas Dispositif et procede de detection de defaut terre et relais comportant un tel dispositif
DE102005028881B4 (de) 2005-06-22 2010-04-29 Siemens Ag Fehlerstromanalysator zur Erfassung eines Fehlerstroms und Einrichtung mit Fehlerstromerfassungsfunktion
FR2902887B1 (fr) 2006-06-23 2008-08-01 Schneider Electric Ind Sas Procede de detection directionnel d'un defaut a la terre et dispositif pour sa mise en oeuvre
CN100454031C (zh) * 2006-07-28 2009-01-21 徐文远 中性点非有效接地系统单相接地选线设备及方法
FR2936319B1 (fr) * 2008-09-25 2010-09-10 Schneider Electric Ind Sas Detection directionnelle d'un defaut a la terre par correlation lineaire
ES2754711T3 (es) 2008-09-25 2020-04-20 Schneider Electric Ind Sas Detección direccional de un fallo a tierra
FR2936378B1 (fr) 2008-09-25 2010-10-15 Schneider Electric Ind Sas Detection directionnelle d'un defaut a la terre a faible echantillonnage

Also Published As

Publication number Publication date
CN102385020A (zh) 2012-03-21
KR20120018282A (ko) 2012-03-02
ES2694767T3 (es) 2018-12-27
FR2963967A1 (fr) 2012-02-24
FR2963967B1 (fr) 2012-08-17
EP2421110A1 (fr) 2012-02-22
KR101792884B1 (ko) 2017-11-20
EP2421110B1 (fr) 2018-08-15
EA022653B1 (ru) 2016-02-29
CN102385020B (zh) 2016-09-07

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