FR2088286B1 - - Google Patents

Info

Publication number
FR2088286B1
FR2088286B1 FR7115580A FR7115580A FR2088286B1 FR 2088286 B1 FR2088286 B1 FR 2088286B1 FR 7115580 A FR7115580 A FR 7115580A FR 7115580 A FR7115580 A FR 7115580A FR 2088286 B1 FR2088286 B1 FR 2088286B1
Authority
FR
France
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
FR7115580A
Other versions
FR2088286A1 (fr
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries 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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of FR2088286A1 publication Critical patent/FR2088286A1/fr
Application granted granted Critical
Publication of FR2088286B1 publication Critical patent/FR2088286B1/fr
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
    • H02H3/334—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
    • H02H3/335—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 the main function being self testing of the device

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Emergency Protection Circuit Devices (AREA)
FR7115580A 1970-05-02 1971-04-30 Expired FR2088286B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2120170 1970-05-02

Publications (2)

Publication Number Publication Date
FR2088286A1 FR2088286A1 (fr) 1972-01-07
FR2088286B1 true FR2088286B1 (fr) 1973-10-19

Family

ID=10158887

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7115580A Expired FR2088286B1 (fr) 1970-05-02 1971-04-30

Country Status (4)

Country Link
US (1) US3745453A (fr)
DE (1) DE2121239A1 (fr)
FR (1) FR2088286B1 (fr)
GB (1) GB1333918A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU505689B2 (en) * 1976-02-10 1979-11-29 Email Limited Current operated core balance protective test unit
FR2379905A1 (fr) * 1977-02-02 1978-09-01 Lebocey Industrie Appareil pour le controle d'un dispositif de protection differentiel
US4114092A (en) * 1977-07-25 1978-09-12 Fry Jr James H Power circuit identifier which produces a voltage pulse in response to interruption of power
GB2124786A (en) * 1982-08-03 1984-02-22 British Nuclear Fuels Ltd Testing device for circuit breakers
US4560936A (en) * 1984-12-24 1985-12-24 Westinghouse Electric Corp. Programmable controller system with failure indicator
US4803434A (en) * 1988-03-18 1989-02-07 Westinghouse Electric Corp. Test device for circuit breakers having electronic trip units
DE69124442T2 (de) * 1990-09-07 1997-07-17 Oneac Corp Reserve-Fremdstromversorgung
CN104901090B (zh) * 2015-06-01 2017-03-08 佛山市顺德区信辉达电子有限公司 一种转换电压型漏电保护插头

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB860094A (en) * 1958-11-13 1961-02-01 London Electricity Board Improvements in or relating to time interval measurement
US3393360A (en) * 1964-06-09 1968-07-16 Army Usa Device for testing the critical open time of contacts in an electronic circuit
FR1566184A (fr) * 1967-11-29 1969-05-09

Also Published As

Publication number Publication date
FR2088286A1 (fr) 1972-01-07
DE2121239A1 (de) 1971-11-18
US3745453A (en) 1973-07-10
GB1333918A (en) 1973-10-17

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Legal Events

Date Code Title Description
ST Notification of lapse