GB2518733B - Neutral line breakage detection circuit, method and corresponding residual current circuit breaker - Google Patents

Neutral line breakage detection circuit, method and corresponding residual current circuit breaker

Info

Publication number
GB2518733B
GB2518733B GB1413299.7A GB201413299A GB2518733B GB 2518733 B GB2518733 B GB 2518733B GB 201413299 A GB201413299 A GB 201413299A GB 2518733 B GB2518733 B GB 2518733B
Authority
GB
United Kingdom
Prior art keywords
residual current
neutral line
breakage detection
corresponding residual
line breakage
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.)
Expired - Fee Related
Application number
GB1413299.7A
Other versions
GB201413299D0 (en
GB2518733A (en
Inventor
Chen Jia
Qi Xu Shou
Yang Lin
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB201413299D0 publication Critical patent/GB201413299D0/en
Publication of GB2518733A publication Critical patent/GB2518733A/en
Application granted granted Critical
Publication of GB2518733B publication Critical patent/GB2518733B/en
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
    • H02H3/26—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
    • H02H3/32—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/325—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors involving voltage comparison
    • 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
    • H02H3/32—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
    • H02H3/338—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers also responsive to wiring error, e.g. loss of neutral, break
    • 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
    • H02H3/32—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/34—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system
    • H02H3/347—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system using summation current transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/10—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to mechanical injury, e.g. rupture of line, breakage of earth connection

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
GB1413299.7A 2013-09-05 2014-07-28 Neutral line breakage detection circuit, method and corresponding residual current circuit breaker Expired - Fee Related GB2518733B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310400423.8A CN104426128B (en) 2013-09-05 2013-09-05 Broken neutral line detects circuit and corresponding residual current circuit breaker

Publications (3)

Publication Number Publication Date
GB201413299D0 GB201413299D0 (en) 2014-09-10
GB2518733A GB2518733A (en) 2015-04-01
GB2518733B true GB2518733B (en) 2017-05-31

Family

ID=51587314

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1413299.7A Expired - Fee Related GB2518733B (en) 2013-09-05 2014-07-28 Neutral line breakage detection circuit, method and corresponding residual current circuit breaker

Country Status (2)

Country Link
CN (1) CN104426128B (en)
GB (1) GB2518733B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203983940U (en) * 2014-05-04 2014-12-03 西门子公司 Earth leakage protective device
CN106124920B (en) * 2016-06-28 2018-12-07 国网河南省电力公司桐柏县供电公司 Transformer neutral conductor virtual connection fault detection method
CN106229936B (en) * 2016-08-10 2018-07-06 国网浙江瑞安市供电有限责任公司 The protective device of the disconnected neutral conductor and phase shortage
US10868417B2 (en) 2016-12-09 2020-12-15 Southwire Company, Llc Open neutral detector
CN108001270B (en) * 2017-11-30 2020-01-07 北京新能源汽车股份有限公司 Direct current charging circuit and direct current charging detection method
US10992126B2 (en) 2018-11-16 2021-04-27 Eaton Intelligent Power Limited Circuit interrupter installation and associated method
CN114415066B (en) * 2022-03-29 2022-06-21 菲尼克斯亚太电气（南京）有限公司 Circuit system for detecting power failure and detection method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0154450A1 (en) * 1984-02-23 1985-09-11 Delta Electrical (Holdings) Limited Earth leakage protective circuit
GB2178916A (en) * 1985-06-22 1987-02-18 Ashley Accessories Ltd Detecting abnormal neutral line
GB2201055A (en) * 1984-07-30 1988-08-17 Technology Res Corp Ground fault current interrupter circuit with additional protection
GB2244398A (en) * 1990-05-25 1991-11-27 Mk Electric Ltd Test circuit for residual current device
GB2277646A (en) * 1993-04-27 1994-11-02 Shakira Ltd Mains neutral fault detector

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201149988Y (en) * 2008-01-29 2008-11-12 陈家斌 Overvoltage protector for cutting low-voltage electric network zero curve
CN101877476A (en) * 2009-05-01 2010-11-03 杨树昌 Protector for preventing three-phase power circuit from generating high voltage
CN202840471U (en) * 2012-10-19 2013-03-27 山东电力集团公司日照供电公司 Low-voltage neutral line brake protection system based on PMU (power management unit) synchronous phasor measurement
CN202978217U (en) * 2012-12-24 2013-06-05 裴海兵 Single-phase electric leakage zero interruption protective switch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0154450A1 (en) * 1984-02-23 1985-09-11 Delta Electrical (Holdings) Limited Earth leakage protective circuit
GB2201055A (en) * 1984-07-30 1988-08-17 Technology Res Corp Ground fault current interrupter circuit with additional protection
GB2178916A (en) * 1985-06-22 1987-02-18 Ashley Accessories Ltd Detecting abnormal neutral line
GB2244398A (en) * 1990-05-25 1991-11-27 Mk Electric Ltd Test circuit for residual current device
GB2277646A (en) * 1993-04-27 1994-11-02 Shakira Ltd Mains neutral fault detector

Also Published As

Publication number Publication date
GB201413299D0 (en) 2014-09-10
CN104426128B (en) 2018-01-19
GB2518733A (en) 2015-04-01
CN104426128A (en) 2015-03-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20200728