GB2268011B - A residual current device - Google Patents

A residual current device

Info

Publication number
GB2268011B
GB2268011B GB9312527A GB9312527A GB2268011B GB 2268011 B GB2268011 B GB 2268011B GB 9312527 A GB9312527 A GB 9312527A GB 9312527 A GB9312527 A GB 9312527A GB 2268011 B GB2268011 B GB 2268011B
Authority
GB
United Kingdom
Prior art keywords
current device
residual current
residual
current
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
GB9312527A
Other versions
GB2268011A (en
GB9312527D0 (en
Inventor
Patrick Ward
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.)
Shakira Ltd
Original Assignee
Shakira 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 Shakira Ltd filed Critical Shakira Ltd
Publication of GB9312527D0 publication Critical patent/GB9312527D0/en
Publication of GB2268011A publication Critical patent/GB2268011A/en
Application granted granted Critical
Publication of GB2268011B publication Critical patent/GB2268011B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H02H3/33—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
    • H02H3/33—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
    • H02H3/334—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 with means to produce an artificial unbalance for other protection or monitoring reasons or remote control

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
GB9312527A 1992-06-18 1993-06-17 A residual current device Expired - Fee Related GB2268011B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IE921968 1992-06-18

Publications (3)

Publication Number Publication Date
GB9312527D0 GB9312527D0 (en) 1993-08-04
GB2268011A GB2268011A (en) 1993-12-22
GB2268011B true GB2268011B (en) 1995-11-29

Family

ID=11039684

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9312527A Expired - Fee Related GB2268011B (en) 1992-06-18 1993-06-17 A residual current device

Country Status (1)

Country Link
GB (1) GB2268011B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2301498B (en) * 1992-07-22 1997-01-29 Technology Res Corp Ground fault circuit interrupter
GB2298095B (en) * 1992-07-22 1997-01-29 Technology Res Corp Ground fault circuit interrupter
IE930293A1 (en) * 1993-04-19 1994-10-19 Shakira Ltd A.C. mains monitoring circuit
GB9403463D0 (en) * 1994-02-23 1994-04-13 Chua Chua G An electrical earth leakage circuit
EP0905847B1 (en) * 1997-09-30 2003-05-02 Siemens Aktiengesellschaft Fault-current protective device
GB2366676A (en) * 2000-03-22 2002-03-13 Shakira Ltd Residual current device
GB2390944B (en) * 2002-07-15 2005-12-14 Shakira Ltd A residual current device
CN101316037B (en) * 2007-05-29 2010-10-13 浙江正泰电器股份有限公司 Aftercurrent action protector with self-diagnostic function
AT507224B1 (en) * 2008-06-18 2010-03-15 Moeller Gebaeudeautomation Gmb FAULT CIRCUIT BREAKER
AT506973B1 (en) 2008-06-18 2010-01-15 Moeller Gebaeudeautomation Gmb FAULT CIRCUIT BREAKER
AU2010100428B4 (en) * 2010-03-26 2011-02-24 Landis & Gyr Pty Ltd Method and Apparatus for Power Supply Fault Detection
WO2012131508A1 (en) * 2011-03-30 2012-10-04 Shakira Limited A device for detecting a fault in an ac supply
CN203983940U (en) * 2014-05-04 2014-12-03 西门子公司 Earth leakage protective device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4159501A (en) * 1975-03-27 1979-06-26 Kerr-Mcgee Nuclear Corporation Method and apparatus for indicating the leakage resistance in an electrical system
IE880341L (en) * 1988-02-08 1989-08-08 Patrick Ward Ground fault current interrupter circuit
IL88704A (en) * 1988-12-16 1992-02-16 Solar Wide Ind Ltd Method and apparatus for protecting electrical systems
IE64082B1 (en) * 1991-01-17 1995-07-12 Shakira Ltd A C mains monitoring circuit

Also Published As

Publication number Publication date
GB2268011A (en) 1993-12-22
GB9312527D0 (en) 1993-08-04

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Legal Events

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

Effective date: 20120617