ZA200403139B - Determining electrical faults on underground power systems using directional element. - Google Patents

Determining electrical faults on underground power systems using directional element. Download PDF

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Publication number
ZA200403139B
ZA200403139B ZA200403139A ZA200403139A ZA200403139B ZA 200403139 B ZA200403139 B ZA 200403139B ZA 200403139 A ZA200403139 A ZA 200403139A ZA 200403139 A ZA200403139 A ZA 200403139A ZA 200403139 B ZA200403139 B ZA 200403139B
Authority
ZA
South Africa
Prior art keywords
current
zero sequence
fault
reverse
supervisory
Prior art date
Application number
ZA200403139A
Other languages
English (en)
Inventor
Jeffrey B Roberts
Original Assignee
Schweitzer Engineering Lab 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25546706&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ZA200403139(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Schweitzer Engineering Lab Inc filed Critical Schweitzer Engineering Lab Inc
Publication of ZA200403139B publication Critical patent/ZA200403139B/en

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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
    • H02H3/40—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 ratio of voltage and current
    • H02H3/402—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 ratio of voltage and current using homopolar quantities
    • 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
    • H02H3/08—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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Protection Of Transformers (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Dc Digital Transmission (AREA)
  • Optical Communication System (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Amplifiers (AREA)
ZA200403139A 2001-10-24 2004-04-23 Determining electrical faults on underground power systems using directional element. ZA200403139B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/999,837 US6721671B2 (en) 2001-10-24 2001-10-24 Directional element to determine faults on ungrounded power systems

Publications (1)

Publication Number Publication Date
ZA200403139B true ZA200403139B (en) 2005-05-30

Family

ID=25546706

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA200403139A ZA200403139B (en) 2001-10-24 2004-04-23 Determining electrical faults on underground power systems using directional element.

Country Status (11)

Country Link
US (1) US6721671B2 (es)
EP (1) EP1446675B8 (es)
AT (1) ATE348341T1 (es)
BR (1) BR0213555A (es)
CA (1) CA2464323C (es)
DE (1) DE60216808T8 (es)
ES (1) ES2278051T3 (es)
MX (1) MXPA04003842A (es)
NZ (1) NZ532557A (es)
WO (1) WO2003036312A2 (es)
ZA (1) ZA200403139B (es)

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US7230809B2 (en) * 2004-06-21 2007-06-12 Schweitzer Engineering Laboratories, Inc. System for checking synchronization of AC voltage sources before closing a power circuit breaker
US7345488B2 (en) * 2005-06-01 2008-03-18 Schweitzer Engineering Laboratories, Inc. Apparatus and method for determining a faulted phase of a three-phase ungrounded power system
US7940054B2 (en) * 2006-10-16 2011-05-10 Schweitzer Engineering Laboratories, Inc. System and method to zero-sequence verify ground return path integrity by comparing measured zero-sequence current in an autotransformer with a second zero-sequence current source
CA2585820A1 (fr) * 2007-04-18 2008-10-18 Hydro-Quebec Localisation de defaut sur un reseau electrique par mesures de tension distribuees
US7986500B2 (en) * 2007-12-06 2011-07-26 Honeywell International Inc. Ground fault detection in an ungrounded electrical system
US8072715B2 (en) * 2008-07-16 2011-12-06 Huntington Ingalls Incorporated Method, apparatus and computer program product for fault protection
US8575941B2 (en) * 2009-09-08 2013-11-05 Schweitzer Engineering Laboratories Inc Apparatus and method for identifying a faulted phase in a shunt capacitor bank
EP2476002B1 (de) * 2009-09-09 2015-05-27 Siemens Aktiengesellschaft Fehlererkennung in energieversorgungsnetzen mit ungeerdetem oder gelöschtem sternpunkt
US8717725B2 (en) 2010-12-02 2014-05-06 Schweitzer Engineering Laboratories Inc Dual-comparator restricted earth fault protection
RU2473158C1 (ru) * 2011-06-20 2013-01-20 Федеральное государственное унитарное предприятие "Центральный научно-исследовательский институт имени академика А.Н. Крылова" (ФГУП "ЦНИИ им.акад. А.Н. Крылова") Устройство селективного контроля и защиты от замыканий на землю в сети с изолированной нейтралью
US8817438B2 (en) 2011-06-21 2014-08-26 Consolidated Edison Company Of New York, Inc. Recloser device and method of operation
US8861154B2 (en) * 2011-06-21 2014-10-14 Consolidated Edison Company Of New York, Inc. Recloser device and method of operation
CN102508098B (zh) * 2011-10-31 2015-01-07 许继电气股份有限公司 用于交直流混联电网的快速零序方向元件判别方法
US9279847B2 (en) * 2013-02-21 2016-03-08 Mitsubishi Electric Research Laboratories, Inc. Method for locating faults in ungrounded power distribution systems
US9379534B2 (en) 2013-03-13 2016-06-28 Consolidated Edison Company Of New York, Inc. Recloser device and method of operation
US9316679B2 (en) * 2013-04-10 2016-04-19 Mitsubishi Electric Research Laboratories, Inc. Method for locating of single-phase-to-ground faults of ungrounded power distribution systems
US9128140B2 (en) 2013-09-16 2015-09-08 Schweitzer Engineering Laboratories, Inc. Detection of a fault in an ungrounded electric power distribution system
CN104155582B (zh) * 2014-08-29 2016-10-19 上海交通大学 基于全波形信息的配网线路故障区段定位方法
CN104316819B (zh) * 2014-10-28 2017-02-01 许继电气股份有限公司 一种基于零序电流的小电流接地选线方法
WO2016089910A1 (en) 2014-12-01 2016-06-09 S&C Electric Company Fault detection and direction determination
US9496707B2 (en) 2014-12-22 2016-11-15 Schweitzer Engineering Laboratories, Inc. Generator protection element
CN104991135B (zh) * 2015-06-26 2018-10-30 华为技术有限公司 台区识别方法和装置
CN105738751B (zh) * 2016-02-25 2018-02-16 国网山西省电力公司电力科学研究院 一种母线差动保护电流回路断线告警定值的整定计算方法
US10197614B2 (en) 2016-05-02 2019-02-05 Schweitzer Engineering Laboratories, Inc. Fault location during pole-open condition
RU2633803C1 (ru) * 2017-01-25 2017-10-19 Федеральное государственное автономное образовательное учреждение высшего образования "Южно-Уральский государственный университет (национальный исследовательский университет)" (ФГАОУ ВО "ЮУрГУ (НИУ)") Устройство защиты от обрывов проводов воздушной линии электропередачи с изолированной нейтралью
US10931097B2 (en) 2017-09-25 2021-02-23 Schweitzer Engineering Laboratories, Inc. Generator stator ground protection using third harmonic
US10333291B2 (en) 2017-09-25 2019-06-25 Schweitzer Engineering Laboratories, Inc. Multiple generator ground fault detection
CN107863764B (zh) * 2017-11-14 2019-07-12 国家电网公司华中分部 一种基于反时限特性的站域后备保护方法
US10797632B2 (en) 2018-08-21 2020-10-06 Schweitzer Engineering Laboratories, Inc. Sensitive directional element for generator protection
US11567109B2 (en) 2019-10-11 2023-01-31 Schweitzer Engineering Laboratories, Inc. Capacitor bank control using wireless electrical measurement sensors away from capacitor bank
US10819261B1 (en) 2019-10-25 2020-10-27 Schweitzer Engineering Laboratories, Inc. Security improvements for electric power generator protection
US11177645B2 (en) 2019-11-22 2021-11-16 Schweitzer Engineering Laboratories, Inc. Systems and methods for improving restricted earth fault protection
US12025679B2 (en) 2020-08-28 2024-07-02 Schweitzer Engineering Laboratories, Inc Integrating memory dropout timer
US11592498B2 (en) 2020-10-02 2023-02-28 Schweitzer Engineering Laboratories, Inc. Multi-phase fault identification in capacitor banks
US11631972B2 (en) 2020-12-16 2023-04-18 Schweitzer Engineering Laboratories, Inc. Accurate modeling of equipment overexcitation damage curves
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
US11735908B2 (en) 2021-02-15 2023-08-22 Schweitzer Engineering Laboratories, Inc. Dependable open-phase detection in electric power delivery systems with inverter-based resources
US11650241B1 (en) 2022-06-28 2023-05-16 Schweitzer Engineering Laboratories, Inc. Incremental quantities-based fault locating technique and system
US11946966B1 (en) 2023-02-20 2024-04-02 Schweitzer Engineering Laboratories, Inc. Selective stator ground fault protection using positive-sequence voltage reference

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JPH07108055B2 (ja) * 1989-07-21 1995-11-15 三菱電機株式会社 地絡検出装置
US5349490A (en) * 1992-10-15 1994-09-20 Schweitzer Engineering Laboratories, Inc. Negative sequence directional element for a relay useful in protecting power transmission lines
CA2184091A1 (en) * 1994-02-28 1995-09-08 Damir Novosel One-terminal data fault location system
DE4439499C2 (de) * 1994-10-27 1998-01-29 Siemens Ag Verfahren zum Erfassen eines Erdkurzschlusses auf einer elektrischen Energieübertragungsleitung
US5694281A (en) * 1995-10-20 1997-12-02 Schweitzer Engineering Laboratories, Inc. Zero sequence voltage-polarized directional element for protective relays
US5963404A (en) * 1998-06-16 1999-10-05 Schweitzer Engineering Laboratories, Inc. Restricted earth fault protection for transformers using a directional element
US20030085715A1 (en) * 2001-08-15 2003-05-08 David Lubkeman System and method for locating a fault on ungrounded and high-impedance grounded power systems

Also Published As

Publication number Publication date
ES2278051T3 (es) 2007-08-01
EP1446675B8 (en) 2007-06-13
CA2464323C (en) 2009-07-14
DE60216808D1 (de) 2007-01-25
US20030078745A1 (en) 2003-04-24
EP1446675B1 (en) 2006-12-13
NZ532557A (en) 2006-01-27
MXPA04003842A (es) 2004-08-11
EP1446675A2 (en) 2004-08-18
CA2464323A1 (en) 2003-05-01
ATE348341T1 (de) 2007-01-15
BR0213555A (pt) 2004-12-07
EP1446675A4 (en) 2005-07-20
DE60216808T8 (de) 2007-06-14
WO2003036312A2 (en) 2003-05-01
WO2003036312A3 (en) 2003-06-05
DE60216808T2 (de) 2007-04-12
US6721671B2 (en) 2004-04-13

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