IN2014CN04230A - - Google Patents

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Publication number
IN2014CN04230A
IN2014CN04230A IN4230CHN2014A IN2014CN04230A IN 2014CN04230 A IN2014CN04230 A IN 2014CN04230A IN 4230CHN2014 A IN4230CHN2014 A IN 4230CHN2014A IN 2014CN04230 A IN2014CN04230 A IN 2014CN04230A
Authority
IN
India
Prior art keywords
fault
local line
fault component
identifying
lines
Prior art date
Application number
Inventor
Youyi Li
Bin Su
Original Assignee
Abb Research Ltd
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 Abb Research Ltd filed Critical Abb Research Ltd
Publication of IN2014CN04230A publication Critical patent/IN2014CN04230A/en

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Classifications

    • 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
    • H02H7/28—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 for meshed systems
    • 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
    • H02H3/302—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 phase comparison
    • 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
    • H02H7/261—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 involving signal transmission between at least two stations
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Locating Faults (AREA)

Abstract

The present invention discloses a method for identifying the fault direction without voltage measurement information and directional element thereof which comprises: as to any one of protections measuring the current value of the local line; calculating the fault component current based on said current value and further calculating the phase angle of said fault component current; obtaining the phase angles of fault component currents from at least other two lines which are connected to the same busbar with said local line; comparing the phase angle of fault component current of said local line with that of the other lines; and identifying the fault direction based on the result of the comparison. The proposed methods and directional element without voltage measurement information can be used in both distribution and transmission systems. It shall be noted that the proposed solutions can also be used for any applications which need fault direction without available voltage information.
IN4230CHN2014 2012-01-16 2012-01-16 IN2014CN04230A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/070424 WO2013106985A1 (en) 2012-01-16 2012-01-16 Method for identifying fault direction without voltage measurement information and directional element thereof

Publications (1)

Publication Number Publication Date
IN2014CN04230A true IN2014CN04230A (en) 2015-07-17

Family

ID=48798476

Family Applications (1)

Application Number Title Priority Date Filing Date
IN4230CHN2014 IN2014CN04230A (en) 2012-01-16 2012-01-16

Country Status (3)

Country Link
CN (1) CN104054001B (en)
IN (1) IN2014CN04230A (en)
WO (1) WO2013106985A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2518188B (en) * 2013-09-12 2020-11-18 Ea Tech Limited Fault level monitor
CN103927459B (en) * 2014-05-04 2016-10-05 华北电力大学（保定） A kind of method for positioning containing distributed power source distribution network failure
CN106941252B (en) * 2017-01-09 2019-04-05 湖南大学 It is not required to the guard method of distribution feeder containing DG of voltage
CN107017608A (en) * 2017-05-31 2017-08-04 国网吉林省电力有限公司电力科学研究院 A kind of power distribution network current protection facility and method containing distributed power source
CN107221919B (en) * 2017-07-14 2019-07-12 国网辽宁省电力有限公司 A method of improving the power distribution network reliability of relay protection containing distributed generation resource
CN109959844B (en) * 2019-01-14 2021-06-04 珠海许继电气有限公司 Method and device for judging fault direction of power distribution network with distributed power supply
CN111130077B (en) * 2020-02-17 2022-03-29 东南大学 Active power distribution network multi-terminal differential protection method based on amplitude-phase relation
CN115825646A (en) * 2022-11-18 2023-03-21 天津大学 Negative sequence direction-based method for identifying and setting fault direction of low-voltage power grid in high-proportion distributed power supply

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1195775A (en) * 1997-12-23 1998-10-14 浙江大学 Method and device for distinguishing transmission line fault direction
JP5079214B2 (en) * 2005-03-02 2012-11-21 東北電力株式会社 Accident direction identification device for distribution lines
US7969155B2 (en) * 2007-07-03 2011-06-28 Thomas & Betts International, Inc. Directional fault current indicator

Also Published As

Publication number Publication date
CN104054001B (en) 2016-10-26
CN104054001A (en) 2014-09-17
WO2013106985A1 (en) 2013-07-25

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