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GB2170367B - Residual current device - Google Patents

Residual current device

Info

Publication number
GB2170367B
GB2170367B GB08602064A GB8602064A GB2170367B GB 2170367 B GB2170367 B GB 2170367B GB 08602064 A GB08602064 A GB 08602064A GB 8602064 A GB8602064 A GB 8602064A GB 2170367 B GB2170367 B GB 2170367B
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
Application number
GB08602064A
Other versions
GB8602064D0 (en
GB2170367A (en
Inventor
Patrick Joseph 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.)
Atreus Enterprises Ltd
Original Assignee
Atreus Enterprises 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 Atreus Enterprises Ltd filed Critical Atreus Enterprises Ltd
Publication of GB8602064D0 publication Critical patent/GB8602064D0/en
Publication of GB2170367A publication Critical patent/GB2170367A/en
Application granted granted Critical
Publication of GB2170367B publication Critical patent/GB2170367B/en
Expired 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
    • H02H3/332—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 responsive to DC component in the fault current
    • 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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0092—Details of emergency protective circuit arrangements concerning the data processing means, e.g. expert systems, neural networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)
GB08602064A 1985-01-29 1986-01-28 Residual current device Expired GB2170367B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IE214/85A IE56011B1 (en) 1985-01-29 1985-01-29 Improved residual current device

Publications (3)

Publication Number Publication Date
GB8602064D0 GB8602064D0 (en) 1986-03-05
GB2170367A GB2170367A (en) 1986-07-30
GB2170367B true GB2170367B (en) 1988-05-18

Family

ID=11008781

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08602064A Expired GB2170367B (en) 1985-01-29 1986-01-28 Residual current device

Country Status (3)

Country Link
BE (1) BE903181A (en)
GB (1) GB2170367B (en)
IE (1) IE56011B1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1247630B (en) * 1990-11-08 1994-12-28 Zanussi Elettrodomestici DIFFERENTIAL TYPE ELECTRONIC SAFETY DEVICE FOR HOUSEHOLD APPLIANCES
GB9109477D0 (en) * 1991-05-02 1991-06-26 Mk Electric Ltd Electrical protection devices
ATE300798T1 (en) * 1998-09-18 2005-08-15 Siemens Ag RESIDUAL CURRENT PROTECTION DEVICE WITH BIPOLAR SIGNAL PROCESSING
DE10162255B4 (en) * 2001-12-18 2007-08-16 Siemens Ag Residual current protection device
EP1793465A1 (en) * 2005-11-30 2007-06-06 STMicroelectronics S.r.l. Electronic differential switch
CN102013362B (en) * 2010-11-10 2013-07-17 浙江德隆电器有限公司 High-safety automatic resetting breaker
CN103247489B (en) * 2013-05-16 2015-11-04 天津市百利电气有限公司 The circuit breaker electronic release of no ground current sample Special mutual-inductor
CN110850219B (en) * 2019-11-28 2023-06-27 珠海格力电器股份有限公司 Fault detection circuit, fault detection method and refrigerating equipment

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091431A (en) * 1967-02-13 1978-05-23 Harbey Hubbell, Incorporated Ground leakage relay circuit
US3879639A (en) * 1973-01-04 1975-04-22 Federal Pacific Electric Co Ground fault interrupters
US4216515A (en) * 1973-03-28 1980-08-05 Eaton Corporation Ground fault interrupter
US3978400A (en) * 1974-11-25 1976-08-31 Square D Company Ground fault detector with a nonlinear sensing means
US4080641A (en) * 1976-07-12 1978-03-21 Rca Corporation Ground fault detector
US4080640A (en) * 1976-09-27 1978-03-21 Westinghouse Electric Corporation People-protecting ground fault circuit interrupter
US4247879A (en) * 1978-04-19 1981-01-27 Westinghouse Electric Corp. People protecting ground fault circuit breaker utilizing waveform characteristics
FR2481851A1 (en) * 1980-04-30 1981-11-06 Merlin Gerin DEVICE FOR DIFFERENTIAL PROTECTION SENSITIVE TO A UNIDIRECTIONAL CURRENT
US4353103A (en) * 1981-04-08 1982-10-05 Whitlow George A Ground fault interrupter circuit

Also Published As

Publication number Publication date
GB8602064D0 (en) 1986-03-05
IE56011B1 (en) 1991-03-13
IE850214L (en) 1986-07-29
GB2170367A (en) 1986-07-30
BE903181A (en) 1985-12-31

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Legal Events

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