ES2445015A8 - Protección restrigida contra fallos de conexión a tierra de comparador doble - Google Patents

Protección restrigida contra fallos de conexión a tierra de comparador doble

Info

Publication number
ES2445015A8
ES2445015A8 ES201390054A ES201390054A ES2445015A8 ES 2445015 A8 ES2445015 A8 ES 2445015A8 ES 201390054 A ES201390054 A ES 201390054A ES 201390054 A ES201390054 A ES 201390054A ES 2445015 A8 ES2445015 A8 ES 2445015A8
Authority
ES
Spain
Prior art keywords
comparator
phase angle
protection against
ground connection
select
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
ES201390054A
Other languages
English (en)
Other versions
ES2445015R1 (es
ES2445015A2 (es
ES2445015B2 (es
Inventor
A. LABUSCHAGNE Casper
Steven Chase
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schweitzer Engineering Laboratories Inc
Original Assignee
Schweitzer Engineering Laboratories Inc
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 Schweitzer Engineering Laboratories Inc filed Critical Schweitzer Engineering Laboratories Inc
Publication of ES2445015A2 publication Critical patent/ES2445015A2/es
Publication of ES2445015A8 publication Critical patent/ES2445015A8/es
Publication of ES2445015R1 publication Critical patent/ES2445015R1/es
Application granted granted Critical
Publication of ES2445015B2 publication Critical patent/ES2445015B2/es
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H02H3/16—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 fault current to earth, frame or mass
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Locating Faults (AREA)

Abstract

Un dispositivo electrónico inteligente puede proporcionar una protección contra fallos de conexión a tierra a componentes de un sistema de suministro de energía eléctrica usando un comparador de amplitud y un comparador de ángulo de fase, configurados para detectar fallos de manera independiente. El IED puede incluir una lógica de selección configurada para seleccionar la salida de uno del comparador de ángulo de fase y el comparador de amplitud, con la exclusión del otro, en base a las condiciones del sistema. En consecuencia, cuando las condiciones del sistema son tales que un comparador de ángulo de fase es más adecuado para detectar un fallo, la lógica de selección puede seleccionar la salida del comparador de ángulo de fase. Del mismo modo, cuando las condiciones del sistema son tales que un comparador de amplitud puede detectar mejor un fallo, la lógica de selección puede seleccionar la salida del comparador de amplitud. Un sistema de protección también puede incluir un detector de fallos en la zona configurado para detectar fallos en la zona.
ES201390054A 2010-12-02 2011-12-01 Protección restrigida contra fallos de conexión a tierra de comparador doble Expired - Fee Related ES2445015B2 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/959,203 2010-12-02
US12/959,203 US8717725B2 (en) 2010-12-02 2010-12-02 Dual-comparator restricted earth fault protection
PCT/US2011/062913 WO2012075305A2 (en) 2010-12-02 2011-12-01 Dual-comparator restricted earth fault protection

Publications (4)

Publication Number Publication Date
ES2445015A2 ES2445015A2 (es) 2014-02-27
ES2445015A8 true ES2445015A8 (es) 2014-03-26
ES2445015R1 ES2445015R1 (es) 2014-07-03
ES2445015B2 ES2445015B2 (es) 2015-04-29

Family

ID=46162032

Family Applications (1)

Application Number Title Priority Date Filing Date
ES201390054A Expired - Fee Related ES2445015B2 (es) 2010-12-02 2011-12-01 Protección restrigida contra fallos de conexión a tierra de comparador doble

Country Status (6)

Country Link
US (1) US8717725B2 (es)
AU (1) AU2011336435B2 (es)
CA (1) CA2818183C (es)
ES (1) ES2445015B2 (es)
MX (1) MX2013005895A (es)
WO (1) WO2012075305A2 (es)

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US9660438B2 (en) * 2014-11-26 2017-05-23 Schweitzer Engineering Laboratories, Inc. Secure and dependable differential protection for electric power generators
JP6673036B2 (ja) * 2016-06-09 2020-03-25 住友電気工業株式会社 電力変換装置及び、遮断部の動作状態判定方法
US10641815B2 (en) * 2018-09-27 2020-05-05 Schweitzer Engineering Laboratories, Inc. Secure distance protection of electric power delivery systems under transient conditions
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US11177645B2 (en) 2019-11-22 2021-11-16 Schweitzer Engineering Laboratories, Inc. Systems and methods for improving restricted earth fault protection
CN111641193B (zh) * 2020-05-19 2022-08-19 国网河南省电力公司电力科学研究院 一种自适应双母线失灵保护方法及装置
US11469588B2 (en) 2020-08-31 2022-10-11 Schweitzer Engineering Laboratories, Inc. Electric power system differential protection with DC compensation
US11411390B2 (en) * 2020-12-31 2022-08-09 Schweitzer Engineering Laboratories, Inc. Secure and dependable restricted earth fault protection for electric power generators and transformers
JP6935044B1 (ja) * 2021-01-08 2021-09-15 三菱電機株式会社 零相電流差動リレー
CN115356589B (zh) * 2022-08-18 2023-10-31 国家电网有限公司 基于电流正序故障的单相接地故障区段定位方法及系统

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Also Published As

Publication number Publication date
ES2445015R1 (es) 2014-07-03
CA2818183A1 (en) 2012-06-07
ES2445015A2 (es) 2014-02-27
US20120140365A1 (en) 2012-06-07
AU2011336435B2 (en) 2014-07-03
WO2012075305A2 (en) 2012-06-07
US8717725B2 (en) 2014-05-06
ES2445015B2 (es) 2015-04-29
MX2013005895A (es) 2013-06-18
AU2011336435A1 (en) 2013-06-06
CA2818183C (en) 2015-04-14
WO2012075305A3 (en) 2012-08-02

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