CA1030607A - Appareil de controle pour interrupteur de protection contre les court-circuits a la masse - Google Patents

Appareil de controle pour interrupteur de protection contre les court-circuits a la masse

Info

Publication number
CA1030607A
CA1030607A CA232,998A CA232998A CA1030607A CA 1030607 A CA1030607 A CA 1030607A CA 232998 A CA232998 A CA 232998A CA 1030607 A CA1030607 A CA 1030607A
Authority
CA
Canada
Prior art keywords
ground fault
fault interrupter
monitor assembly
monitor
interrupter
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
CA232,998A
Other languages
English (en)
Other versions
CA232998S (en
Inventor
William K. Brown
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.)
Schneider Electric USA Inc
Original Assignee
Square D 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 Square D Co filed Critical Square D Co
Application granted granted Critical
Publication of CA1030607A publication Critical patent/CA1030607A/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
    • 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
    • H02H3/02—Details
    • H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
    • 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 imbalance 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 imbalance 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)
  • Emergency Protection Circuit Devices (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
CA232,998A 1974-08-13 1975-08-06 Appareil de controle pour interrupteur de protection contre les court-circuits a la masse Expired CA1030607A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/497,019 US3943409A (en) 1974-08-13 1974-08-13 Monitor assembly for ground fault interrupter

Publications (1)

Publication Number Publication Date
CA1030607A true CA1030607A (fr) 1978-05-02

Family

ID=23975138

Family Applications (1)

Application Number Title Priority Date Filing Date
CA232,998A Expired CA1030607A (fr) 1974-08-13 1975-08-06 Appareil de controle pour interrupteur de protection contre les court-circuits a la masse

Country Status (2)

Country Link
US (1) US3943409A (fr)
CA (1) CA1030607A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4318094A (en) * 1976-06-30 1982-03-02 General Electric Company Interface device for remote control
US4382270A (en) * 1981-04-07 1983-05-03 Westinghouse Electric Corp. Ground fault circuit breaker with mechanical indicator for ground fault trips
US4685022A (en) * 1985-05-10 1987-08-04 Square D Company Ground fault circuit interrupter capable of deriving energy from ground fault current in order to achieve circuit interruption in the presence of a reduced supply voltage
US4755805A (en) * 1986-05-22 1988-07-05 Flowmole Corporation Current sensing alarm arrangement for monitoring the presence of high voltage
FR2638909B1 (fr) * 1988-11-04 1995-03-31 Merlin Gerin Declencheur differentiel a circuit test et a telecommande d'ouverture autoprotegee
US5551485A (en) * 1994-09-30 1996-09-03 Faulkner; John V. False warp stop diagnostic apparatus
US6807035B1 (en) 2000-11-28 2004-10-19 Hubbell Incorporated Fault interrupter using microcontroller for fault sensing and automatic self-testing
US7733617B2 (en) * 2005-08-08 2010-06-08 Hubbell Incorporated Self testing digital fault interrupter
US8009055B2 (en) * 2007-09-28 2011-08-30 Caterpillar Inc. High voltage indication system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482236A (en) * 1966-07-05 1969-12-02 Du Pont Overload detection and indication
US3666988A (en) * 1970-01-22 1972-05-30 Robert E Bellis Touch sensitive power control circuit
US3680070A (en) * 1970-05-25 1972-07-25 Economics Lab Electronic control means for dispensing apparatus
US3727080A (en) * 1970-09-11 1973-04-10 Rca Corp Switching circuits
US3619723A (en) * 1970-09-30 1971-11-09 Gen Electric Sensitive peak current detector for ground fault protection circuits
US3700967A (en) * 1972-01-10 1972-10-24 Zinsco Electrical Products Ground fault detector circuit
US3809985A (en) * 1973-04-06 1974-05-07 Pro Lect Inc Solid state a/c motor protector system

Also Published As

Publication number Publication date
US3943409A (en) 1976-03-09

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