GB1334169A - Ground fault detectors - Google Patents

Ground fault detectors

Info

Publication number
GB1334169A
GB1334169A GB2249071A GB2249071A GB1334169A GB 1334169 A GB1334169 A GB 1334169A GB 2249071 A GB2249071 A GB 2249071A GB 2249071 A GB2249071 A GB 2249071A GB 1334169 A GB1334169 A GB 1334169A
Authority
GB
United Kingdom
Prior art keywords
transformer
oscillator
output
flux
winding
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
GB2249071A
Other languages
English (en)
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.)
Rucker Co
Original Assignee
Rucker Co
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 Rucker Co filed Critical Rucker Co
Publication of GB1334169A publication Critical patent/GB1334169A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/04—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of DC component by short circuits in AC networks
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Transformers (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
GB2249071A 1970-05-20 1971-04-19 Ground fault detectors Expired GB1334169A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3905670 US3614533A (en) 1970-05-20 1970-05-20 Ground fault detector and circuit interrupter by magnetic flux storage method

Publications (1)

Publication Number Publication Date
GB1334169A true GB1334169A (en) 1973-10-17

Family

ID=21903424

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2249071A Expired GB1334169A (en) 1970-05-20 1971-04-19 Ground fault detectors

Country Status (5)

Country Link
US (1) US3614533A (enExample)
JP (1) JPS462873A (enExample)
CA (1) CA946928A (enExample)
FR (1) FR2088245B1 (enExample)
GB (1) GB1334169A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2231215A (en) * 1989-03-18 1990-11-07 Smiths Industries Plc Residual current circuit breaker
DE102011011983A1 (de) * 2011-02-22 2012-08-23 Doepke Schaltgeräte GmbH Fehlerstrom-Schutzeinrichtung
US12355230B2 (en) 2021-07-05 2025-07-08 Phoenix Contact Gmbh & Co. Kg Residual current monitoring for a DC voltage switching device

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710190A (en) * 1971-02-13 1973-01-09 Bbc Brown Boveri & Cie Fault current protective circuit for a load supplied from single or polyphase systems
US3898529A (en) * 1973-12-06 1975-08-05 Texas Instruments Inc Ground fault interrupter circuit with grounded neutral conductor protection
US4159499A (en) * 1977-06-20 1979-06-26 Bereskin Alexander B Ground fault detection and protection circuit
DE2907171A1 (de) * 1979-02-23 1980-09-04 Siemens Ag Verfahren zur ueberwachung von leiterstroemen auf einen fehlerstrom und anordnung zur durchfuehrung des verfahrens
DE3108906A1 (de) * 1981-03-09 1982-09-16 Siemens AG, 1000 Berlin und 8000 München "verfahren zur ueberwachung von leiterstroemen und anordnung zur durchfuehrung des verfahrens"
US4382270A (en) * 1981-04-07 1983-05-03 Westinghouse Electric Corp. Ground fault circuit breaker with mechanical indicator for ground fault trips
US5459444A (en) * 1991-05-16 1995-10-17 Felchar Manufacturing Corporation Circuit breaker for use in wall mounted plug
US5177657A (en) * 1991-05-16 1993-01-05 Felchar Manufacturing Corporation Ground fault interruptor circuit with electronic latch
US5309310A (en) * 1992-01-21 1994-05-03 Felchar Manufacturing Corporation Combined ground fault interrupter circuit and remote control on/off device
US5747973A (en) * 1996-12-11 1998-05-05 Shop Vac Corporation Current regulating switch circuit
US5815357A (en) * 1997-04-09 1998-09-29 Eaton Corporation Method and apparatus for three-phase sensing using two current transformers
US5777835A (en) * 1997-06-30 1998-07-07 Eaton Corporation Third phase reconstruction from a two current transformer sensor with three-phase true RMS and phase loss determination capabilities
US5959818A (en) * 1997-06-30 1999-09-28 Eaton Corporation Method and apparatus for self-powered three-phase sensing to determine true RMS current values with separate burdens for each current transformer
DE19835781C2 (de) * 1998-08-07 2002-10-24 Daimler Chrysler Ag Verfahren und Vorrichtung zur Auslösung einer Sicherung für elektrische Leiter in einem Kraftfahrzeug
US7738230B2 (en) * 2008-01-04 2010-06-15 Leach International Corporation Nonvolatile status indicator switch
US8054593B2 (en) * 2008-12-29 2011-11-08 Reid Paul A Apparatus and method for measuring load current using a ground fault sensing transformer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2594372A (en) * 1951-03-12 1952-04-29 Gen Electric Shock resistant static overload relay
FR1267270A (fr) * 1960-06-09 1961-07-21 Electronique Et D Automatique Dispositif de commande d'un relais de protection pour circuit d'alimentation électrique
GB1060643A (en) * 1963-09-12 1967-03-08 English Electric Co Ltd Electrical fault detection arrangement
DE1513571B2 (de) * 1965-12-22 1971-01-07 Schaltbau Gesellschaft mbH 8000 München Gerat zum Überwachen und Anzeigen von Fehlerstromen in zwei elektrischen Leitern und Fehlerstromschutzschalter mit diesem Gerat
US3374398A (en) * 1966-01-07 1968-03-19 Sanders Associates Inc Magnetic circuit protective device
FR1531405A (fr) * 1967-02-20 1968-07-05 Electricite De France Détecteur de surintensité à ferrites multitrous
US3512045A (en) * 1968-06-28 1970-05-12 Gen Signal Corp Ground fault responsive apparatus for electric power distribution apparatus
US3504234A (en) * 1968-10-14 1970-03-31 Alan S Fitzgerald Electric control system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2231215A (en) * 1989-03-18 1990-11-07 Smiths Industries Plc Residual current circuit breaker
DE102011011983A1 (de) * 2011-02-22 2012-08-23 Doepke Schaltgeräte GmbH Fehlerstrom-Schutzeinrichtung
US12355230B2 (en) 2021-07-05 2025-07-08 Phoenix Contact Gmbh & Co. Kg Residual current monitoring for a DC voltage switching device

Also Published As

Publication number Publication date
US3614533A (en) 1971-10-19
FR2088245B1 (enExample) 1975-07-04
JPS462873A (enExample) 1971-10-22
FR2088245A1 (enExample) 1972-01-07
CA946928A (en) 1974-05-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee