GB2504594B - Pilot wire differential protection apparatus for multi-end circuit based on phase comparison principle - Google Patents

Pilot wire differential protection apparatus for multi-end circuit based on phase comparison principle

Info

Publication number
GB2504594B
GB2504594B GB1309864.5A GB201309864A GB2504594B GB 2504594 B GB2504594 B GB 2504594B GB 201309864 A GB201309864 A GB 201309864A GB 2504594 B GB2504594 B GB 2504594B
Authority
GB
United Kingdom
Prior art keywords
circuit based
phase comparison
end circuit
protection apparatus
differential protection
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.)
Active
Application number
GB1309864.5A
Other versions
GB201309864D0 (en
GB2504594A (en
Inventor
Jiankai Liu
Zhemin Yu
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
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 Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of GB201309864D0 publication Critical patent/GB201309864D0/en
Publication of GB2504594A publication Critical patent/GB2504594A/en
Application granted granted Critical
Publication of GB2504594B publication Critical patent/GB2504594B/en
Active 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
    • H02H3/26—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
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
    • H02H1/0084—Details of emergency protective circuit arrangements concerning transmission of signals by means of pilot wires or a telephone network; watching of these wires

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
GB1309864.5A 2012-06-06 2013-06-03 Pilot wire differential protection apparatus for multi-end circuit based on phase comparison principle Active GB2504594B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210184733.6A CN103474971B (en) 2012-06-06 2012-06-06 Based on the multi-point circuit guide wire differential protection than facies principle

Publications (3)

Publication Number Publication Date
GB201309864D0 GB201309864D0 (en) 2013-07-17
GB2504594A GB2504594A (en) 2014-02-05
GB2504594B true GB2504594B (en) 2016-04-06

Family

ID=48805646

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1309864.5A Active GB2504594B (en) 2012-06-06 2013-06-03 Pilot wire differential protection apparatus for multi-end circuit based on phase comparison principle

Country Status (4)

Country Link
CN (1) CN103474971B (en)
GB (1) GB2504594B (en)
MY (1) MY172416A (en)
SG (1) SG195497A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2098417A (en) * 1981-05-09 1982-11-17 Northern Eng Ind Pilot wire line protection systems
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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100350707C (en) * 2004-12-02 2007-11-21 浙江大学 Split-phase zero-sequence fault component braking method for preventing malfunction for transformer protection
CN100375357C (en) * 2005-10-26 2008-03-12 许继集团有限公司 Double end testing method in power transmission line longitudinal difference protection

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2098417A (en) * 1981-05-09 1982-11-17 Northern Eng Ind Pilot wire line protection systems
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

Also Published As

Publication number Publication date
GB201309864D0 (en) 2013-07-17
MY172416A (en) 2019-11-25
CN103474971A (en) 2013-12-25
GB2504594A (en) 2014-02-05
CN103474971B (en) 2016-03-23
SG195497A1 (en) 2013-12-30

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