USB534915I5 - - Google Patents

Info

Publication number
USB534915I5
USB534915I5 US53491574A USB534915I5 US B534915 I5 USB534915 I5 US B534915I5 US 53491574 A US53491574 A US 53491574A US B534915 I5 USB534915 I5 US B534915I5
Authority
US
United States
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.)
Pending
Application number
Other languages
English (en)
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 filed Critical
Priority to US05/534,915 priority Critical patent/US4012668A/en
Publication of USB534915I5 publication Critical patent/USB534915I5/en
Application granted granted Critical
Publication of US4012668A publication Critical patent/US4012668A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H02H3/16—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 fault current to earth, frame or mass
    • H02H3/17—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 fault current to earth, frame or mass by means of an auxiliary voltage injected into the installation to be protected
    • 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
    • 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
    • H02H3/331—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 responsive to earthing of the neutral conductor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Protection Circuit Devices (AREA)
US05/534,915 1973-06-11 1974-12-20 Ground fault and neutral fault detection circuit Expired - Lifetime US4012668A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/534,915 US4012668A (en) 1973-06-11 1974-12-20 Ground fault and neutral fault detection circuit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US36866273A 1973-06-11 1973-06-11
US05/534,915 US4012668A (en) 1973-06-11 1974-12-20 Ground fault and neutral fault detection circuit

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US36866273A Continuation 1973-06-11 1973-06-11

Publications (2)

Publication Number Publication Date
USB534915I5 true USB534915I5 (es) 1976-03-23
US4012668A US4012668A (en) 1977-03-15

Family

ID=27004276

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/534,915 Expired - Lifetime US4012668A (en) 1973-06-11 1974-12-20 Ground fault and neutral fault detection circuit

Country Status (1)

Country Link
US (1) US4012668A (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017212088A1 (es) * 2016-06-07 2017-12-14 Universitat Politècnica De València Procedimiento y dispositivo para la determinación del estado del conductor neutro en una instalación eléctrica

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4150411A (en) * 1977-12-15 1979-04-17 General Electric Company Ground fault circuit interrupter utilizing a single transformer
EP0131718B1 (de) * 1983-06-22 1987-01-14 BBC Brown Boveri AG Einrichtung zur Erfassung eines Erdschlusses in der Rotorwicklung einer elektrischen Maschine
US4731549A (en) * 1984-10-15 1988-03-15 Hiddleson Thomas V Current sensor and control device
GB8712461D0 (en) * 1987-05-27 1987-07-01 Robin Electronics Ltd Circuit testing
EP0313320A3 (en) * 1987-10-19 1991-02-20 Duraplug Electricals Limited Safety apparatus for electrical power supply cables
US5424894A (en) * 1992-11-24 1995-06-13 Briscall; W. Brian Electrical line-fault detector and circuit breaker device
US6678132B1 (en) * 2002-09-06 2004-01-13 Bae Systems Controls, Inc. Ground fault detection system
US7075308B2 (en) * 2003-03-12 2006-07-11 Rockwell Daniel J Blocking impedance
DE102004018918B3 (de) * 2004-04-19 2005-07-28 Ean Elektroschaltanlagen Grimma Gmbh Verfahren und Einrichtung zur Isolationsfehlerortung in einem isolierten ungeerdeten Wechselstromnetz
US9330875B2 (en) * 2009-10-02 2016-05-03 Semiconductor Components Industries, Llc Method for determining a circuit element parameter
US8390297B2 (en) * 2009-10-02 2013-03-05 Semiconductor Components Industries, Llc Ground fault circuit interrupter and method
US9331469B2 (en) 2009-10-02 2016-05-03 Semiconductor Components Industries, Llc Ground fault circuit interrupter and method
JP2013069859A (ja) * 2011-09-22 2013-04-18 Toshiba Corp 半導体装置
US20160265498A1 (en) * 2016-05-18 2016-09-15 Caterpillar Inc. Circuit for detecting fault in fuel injection system
US12298356B2 (en) * 2021-12-13 2025-05-13 Abb Schweiz Ag System and method for grounded-neutral fault detection

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3638072A (en) * 1969-03-19 1972-01-25 Matsushita Electric Works Ltd Detecting device for abnormal state in electric circuit
US3611035A (en) * 1970-06-08 1971-10-05 Rucker Co Ground fault protective system having grounded neutral protection
US3713003A (en) * 1971-02-16 1973-01-23 Purex Corp Ltd Fault or leak detector
US3732463A (en) * 1972-01-03 1973-05-08 Gte Laboratories Inc Ground fault detection and interruption apparatus
US3772569A (en) * 1972-09-05 1973-11-13 Rucker Co Ground fault protective system
US3800189A (en) * 1972-11-28 1974-03-26 Amf Inc Apparatus for detecting a ground connection on load side of neutral conductor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017212088A1 (es) * 2016-06-07 2017-12-14 Universitat Politècnica De València Procedimiento y dispositivo para la determinación del estado del conductor neutro en una instalación eléctrica

Also Published As

Publication number Publication date
US4012668A (en) 1977-03-15

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