WO2003003026A3 - Line differential protection system for a power transmission line - Google Patents

Line differential protection system for a power transmission line Download PDF

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Publication number
WO2003003026A3
WO2003003026A3 PCT/US2002/020855 US0220855W WO03003026A3 WO 2003003026 A3 WO2003003026 A3 WO 2003003026A3 US 0220855 W US0220855 W US 0220855W WO 03003026 A3 WO03003026 A3 WO 03003026A3
Authority
WO
WIPO (PCT)
Prior art keywords
current values
current
terminal
result
local
Prior art date
Application number
PCT/US2002/020855
Other languages
French (fr)
Other versions
WO2003003026A2 (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
Application filed by Schweitzer Engineering Lab Inc filed Critical Schweitzer Engineering Lab Inc
Priority to MXPA03012008A priority Critical patent/MXPA03012008A/en
Priority to CA002452158A priority patent/CA2452158A1/en
Priority to BR0210756-2A priority patent/BR0210756A/en
Priority to AU2002316490A priority patent/AU2002316490A1/en
Publication of WO2003003026A2 publication Critical patent/WO2003003026A2/en
Publication of WO2003003026A3 publication Critical patent/WO2003003026A3/en

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
    • H02H3/26—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
    • H02H3/28—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 two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus
    • H02H3/30—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 two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus using pilot wires or other signalling channel
    • 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
    • H02H3/28—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 two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus
    • H02H3/30—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 two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus using pilot wires or other signalling channel
    • H02H3/307—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 two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus using pilot wires or other signalling channel involving comparison of quantities derived from a plurality of phases, e.g. homopolar quantities; using mixing transformers

Abstract

In a three terminal (200, 202, 204) power line current differential protection system, all three phase current values are obtained from all three terminals. The current values for each phase are processed in three successive processing operations, using in turn the current values from each terminal as local current values and the combination of the other two terminal current values in each case as the remote current values. The resulting local and remote current values are then processed against preselected values, which establish a restrain region in the current ratio 'alpha' plane. Current values for each set of local and combined remote currents which result in the ratio being within the restrain region (30) result in a blocking signal while current values, which result in a ratio outside of the region result in a tripping signal. If the outputs of the three processing operations agree, then that signal is the system output. If there is disagreement, the output produced when the terminal having the largest current value is the local current is the system output.
PCT/US2002/020855 2001-06-29 2002-07-01 Line differential protection system for a power transmission line WO2003003026A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
MXPA03012008A MXPA03012008A (en) 2001-06-29 2002-07-01 Line differential protection system for a power transmission line.
CA002452158A CA2452158A1 (en) 2001-06-29 2002-07-01 Line differential protection system for a power transmission line
BR0210756-2A BR0210756A (en) 2001-06-29 2002-07-01 Current differential protection system for a three-terminal power line configuration
AU2002316490A AU2002316490A1 (en) 2001-06-29 2002-07-01 Line differential protection system for a power transmission line

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/895,504 US6590397B2 (en) 2000-10-19 2001-06-29 Line differential protection system for a power transmission line
US09/895,504 2001-06-29

Publications (2)

Publication Number Publication Date
WO2003003026A2 WO2003003026A2 (en) 2003-01-09
WO2003003026A3 true WO2003003026A3 (en) 2003-03-20

Family

ID=25404598

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/020855 WO2003003026A2 (en) 2001-06-29 2002-07-01 Line differential protection system for a power transmission line

Country Status (6)

Country Link
US (1) US6590397B2 (en)
AU (1) AU2002316490A1 (en)
BR (2) BRPI0210756B1 (en)
CA (1) CA2452158A1 (en)
MX (1) MXPA03012008A (en)
WO (1) WO2003003026A2 (en)

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DE10251001B3 (en) * 2002-10-30 2004-02-26 Siemens Ag Earth short-circuit fault signal provision method for multi-phase transmission line monitoring with detection of phase current transducer saturation
US20060012931A1 (en) * 2004-07-15 2006-01-19 Engel Joseph C Three-pole circuit interrupter
US7196884B2 (en) * 2005-03-02 2007-03-27 Schweitzer Engineering Laboratories, Inc. Apparatus and method for detecting the loss of a current transformer connection coupling a current differential relay to an element of a power system
US7345863B2 (en) * 2005-07-14 2008-03-18 Schweitzer Engineering Laboratories, Inc. Apparatus and method for identifying a loss of a current transformer signal in a power system
US7660088B2 (en) * 2005-09-07 2010-02-09 Schweitzer Engineering Laboratories, Inc. System, apparatus and method for compensating the sensitivity of a sequence element in a line current differential relay in a power system
WO2007035725A2 (en) * 2005-09-19 2007-03-29 Schweitzer Engineering Laboratories, Inc. Method and apparatus for routing data streams among intelligent electronic devices
WO2007086944A2 (en) * 2006-01-23 2007-08-02 Schweitzer Engineering Laboratories, Inc. System, apparatus and method for compensating the sensitivity of a sequence element in a line current differential relay in a power system
US7755872B2 (en) * 2006-09-14 2010-07-13 Schweitzer Engineering Laboratories, Inc. System, method and device to preserve protection communication active during a bypass operation
MX2010003359A (en) * 2007-10-09 2010-04-14 Schweitzer Engineering Lab Inc Transformer through-fault current monitor.
US8405944B2 (en) * 2007-10-09 2013-03-26 Schweitzer Engineering Laboratories Inc Distributed bus differential protection using time-stamped data
US7903381B2 (en) * 2008-03-11 2011-03-08 Schweitzer Engineering Laboratories, Inc. Negative sequence differential element
US8072715B2 (en) * 2008-07-16 2011-12-06 Huntington Ingalls Incorporated Method, apparatus and computer program product for fault protection
US8072225B2 (en) * 2008-10-08 2011-12-06 Hamilton Sundstrand Corporation Differential power detection
US8289668B2 (en) * 2009-09-17 2012-10-16 Schweitzer Engineering Laboratories, Inc. Charging current compensation for line current differential protection
US8553379B2 (en) * 2009-09-17 2013-10-08 Schweitzer Engineering Laboratories Inc Transformer differential protection
US8154836B2 (en) 2009-09-17 2012-04-10 Schweitzer Engineering Laboratories, Inc. Line current differential protection upon loss of an external time reference
US8649142B2 (en) * 2009-09-17 2014-02-11 Schweitzer Engineering Laboratories Inc Equivalent alpha plane fault determination for a multi-terminal power apparatus
US20120224287A1 (en) * 2009-11-17 2012-09-06 Schneider Electric Energy UK Ltd. Fuzzy interference relay and method for current differential protection of a transmission line
US8797018B2 (en) * 2010-01-22 2014-08-05 Schweitzer Engineering Laboratories, Inc. Apparatus and method for identifying the phase and terminal for power system devices
US8565229B2 (en) 2010-06-18 2013-10-22 Schweitzer Engineering Laboratories Inc Systems and methods for data packet transmission
US8717725B2 (en) 2010-12-02 2014-05-06 Schweitzer Engineering Laboratories Inc Dual-comparator restricted earth fault protection
US9435835B2 (en) 2010-12-27 2016-09-06 Schweitzer Engineering Laboratories, Inc. Validation of electric power system monitoring systems
US8791704B2 (en) 2011-10-11 2014-07-29 Schweitzer Engineering Laboratories Inc. Fault-type identification for electric power delivery systems
CN102508117A (en) * 2011-11-16 2012-06-20 深圳市领步科技有限公司 Disturbance area negative-sequence current judgment method
CN102495332B (en) * 2011-11-25 2013-11-13 天津市翔晟远电力设备实业有限公司 System and method for sampling unbalanced current
CN102539974A (en) * 2012-01-10 2012-07-04 首钢水城钢铁（集团）有限责任公司 Differential protection testing method for transformer
US9008982B2 (en) 2012-03-09 2015-04-14 Schweitzer Engineering Laboratories, Inc. Systems and methods for determining residual flux in a power transformer
WO2013181809A1 (en) 2012-06-06 2013-12-12 Abb Technology Ltd. Method for identifying fault by current differential protection and device thereof
US9478378B2 (en) 2013-01-04 2016-10-25 Schweitzer Engineering Laboratories, Inc. Preventing out-of-synchronism reclosing between power systems
CN103604976B (en) * 2013-11-19 2016-05-04 国家电网公司 The inner current in resistance property measuring method of electric transmission line isolator
CN106463944B (en) * 2014-02-21 2019-06-21 Uab研究基金会 Method for detecting the disconnected phase condition of transformer
BR112017009650B1 (en) * 2014-11-14 2022-01-18 Siemens Aktiengesellschaft DIFFERENTIAL PROTECTION METHOD TO GENERATE A FAULT SIGNAL, AND, ELECTRICAL DIFFERENTIAL PROTECTION DEVICE.
CN104316841A (en) * 2014-11-14 2015-01-28 国家电网公司 Method for identifying all line parameters by means of fault recording data
US9660438B2 (en) 2014-11-26 2017-05-23 Schweitzer Engineering Laboratories, Inc. Secure and dependable differential protection for electric power generators
CN104897980B (en) * 2015-03-15 2017-11-03 国家电网公司 A kind of improper action probability evaluation method of failure of longitudinal differential protecting equipment caused by communication delay error code
CN104852169B (en) * 2015-05-19 2018-02-09 深圳市沃尔核材股份有限公司 The accurate thermometric Separable cable connector of intelligence
WO2017177424A1 (en) 2016-04-14 2017-10-19 Abb Schweiz Ag Method, system and apparatus for fault detection in line protection for power transmission system
US10495680B2 (en) 2017-06-14 2019-12-03 Schweitzer Engineering Laboratories, Inc. Systems and methods for detecting current transformer ultrasaturation to enhance relay security and dependability
US10802054B2 (en) 2017-09-22 2020-10-13 Schweitzer Engineering Laboratories, Inc. High-fidelity voltage measurement using a capacitance-coupled voltage transformer
EP3685174A1 (en) 2017-09-22 2020-07-29 Schweitzer Engineering Laboratories, Inc. High-fidelity voltage measurement using resistive divider in a capacitance-coupled voltage transformer
US11038342B2 (en) 2017-09-22 2021-06-15 Schweitzer Engineering Laboratories, Inc. Traveling wave identification using distortions for electric power system protection
CN108493903B (en) * 2018-02-02 2022-09-30 中国电力科学研究院有限公司 Voltage-free energy-pumping reactor differential protection method and device
US10775448B2 (en) 2018-06-18 2020-09-15 Schweitzer Engineering Laboratories, Inc. Automatic phase identification for electric power delivery lines
US10859639B2 (en) 2018-10-02 2020-12-08 Schweitzer Engineering Laboratories, Inc. Fault-type identification in an electric power delivery system using composite signals
WO2020144150A1 (en) 2019-01-08 2020-07-16 Abb Power Grids Switzerland Ag Differential protection of a transmission line
US11187727B2 (en) 2019-04-29 2021-11-30 Schweitzer Engineering Laboratories, Inc. Capacitance-coupled voltage transformer monitoring
CN110579690B (en) * 2019-10-29 2021-11-23 厦门理工学院 Positioning method for small current ground fault section of power distribution network
US11177645B2 (en) 2019-11-22 2021-11-16 Schweitzer Engineering Laboratories, Inc. Systems and methods for improving restricted earth fault protection
US11476655B2 (en) 2020-01-14 2022-10-18 Schweitzer Engineering Laboratories, Inc. Trapped charge estimation
US11575253B2 (en) 2020-05-12 2023-02-07 Schweitzer Engineering Laboratories, Inc. Controlled three-pole close for transmission lines
US11469588B2 (en) 2020-08-31 2022-10-11 Schweitzer Engineering Laboratories, Inc. Electric power system differential protection with DC compensation
US11592498B2 (en) 2020-10-02 2023-02-28 Schweitzer Engineering Laboratories, Inc. Multi-phase fault identification in capacitor banks
US11233389B1 (en) 2020-10-30 2022-01-25 Schweitzer Engineering Laboratories, Inc. Controlled three-pole close for transformers
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
US11808824B2 (en) 2021-03-17 2023-11-07 Schweitzer Engineering Laboratories, Inc. Systems and methods to identify open phases of a capacitor bank

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US5796258A (en) * 1997-01-30 1998-08-18 Abb Power T&D Company, Inc. Adaptive quadrilateral characteristic distance relay
US6148267A (en) * 1998-01-02 2000-11-14 General Electric Company Method and apparatus for transmission line phase angle comparisons

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Patent Citations (3)

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US4841405A (en) * 1985-03-06 1989-06-20 Westinghouse Electric Corp. Protective relaying apparatus for providing fault-resistance correction
US5796258A (en) * 1997-01-30 1998-08-18 Abb Power T&D Company, Inc. Adaptive quadrilateral characteristic distance relay
US6148267A (en) * 1998-01-02 2000-11-14 General Electric Company Method and apparatus for transmission line phase angle comparisons

Also Published As

Publication number Publication date
CA2452158A1 (en) 2003-01-09
BR0210756A (en) 2004-08-10
AU2002316490A1 (en) 2003-03-03
MXPA03012008A (en) 2004-06-03
BRPI0210756B1 (en) 2015-05-12
US20020101229A1 (en) 2002-08-01
WO2003003026A2 (en) 2003-01-09
US6590397B2 (en) 2003-07-08

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