CA1101533A - Ground fault system with noise immunity - Google Patents

Ground fault system with noise immunity

Info

Publication number
CA1101533A
CA1101533A CA274,552A CA274552A CA1101533A CA 1101533 A CA1101533 A CA 1101533A CA 274552 A CA274552 A CA 274552A CA 1101533 A CA1101533 A CA 1101533A
Authority
CA
Canada
Prior art keywords
tripping
ground fault
power supply
noise voltage
level
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
CA274,552A
Other languages
English (en)
French (fr)
Inventor
Raymond H. Legatti
Charles W. Draper
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
Priority to CA336,881A priority Critical patent/CA1083650A/en
Application granted granted Critical
Publication of CA1101533A publication Critical patent/CA1101533A/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
    • H02H3/331—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/713—Structural association with built-in electrical component with built-in switch the switch being a safety switch
    • H01R13/7135—Structural association with built-in electrical component with built-in switch the switch being a safety switch with ground fault protector

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Breakers (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
CA274,552A 1976-04-08 1977-03-23 Ground fault system with noise immunity Expired CA1101533A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA336,881A CA1083650A (en) 1976-04-08 1979-10-03 Ground fault receptacle with circuit interrupting means

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US67471476A 1976-04-08 1976-04-08
US674,714 1976-04-08

Publications (1)

Publication Number Publication Date
CA1101533A true CA1101533A (en) 1981-05-19

Family

ID=24707649

Family Applications (1)

Application Number Title Priority Date Filing Date
CA274,552A Expired CA1101533A (en) 1976-04-08 1977-03-23 Ground fault system with noise immunity

Country Status (7)

Country Link
CA (1) CA1101533A (en:Method)
DE (1) DE2715219A1 (en:Method)
FR (2) FR2347798A1 (en:Method)
GB (2) GB1581364A (en:Method)
IT (1) IT1082997B (en:Method)
MX (1) MX144094A (en:Method)
ZA (1) ZA771801B (en:Method)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3048785A1 (de) * 1980-12-23 1982-07-15 Brown, Boveri & Cie Ag, 6800 Mannheim Schaltungsanordnung zur erfassung eines fehlerstromes
FR2582146A1 (fr) * 1985-05-14 1986-11-21 Osmond Max Dispositif d'alimentation electrique a disjoncteur et prise electrique incorporant ce dispositif
GB8519740D0 (en) * 1985-08-06 1985-09-11 Ashley Accessories Ltd Mains electrical accessories
DE10215019B4 (de) * 2002-04-05 2007-05-16 Doepke Schaltgeraete Gmbh & Co Vorrichtung zum Erfassen von elektrischen Differenzströmen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1965784U (de) * 1967-03-14 1967-08-10 Stotz Kontakt Gmbh Elektrische steckdose mit fehlerstromschutz.
US3813579A (en) * 1970-11-09 1974-05-28 Rucker Co Electric receptacle assembly with ground fault protection
CA1005897A (en) * 1971-05-07 1977-02-22 Ellwood S. Douglas Ground fault protective system
US3787709A (en) * 1971-12-13 1974-01-22 Sci Systems Inc Ground fault-sensitive detector and circuit breaker device
US3936699A (en) * 1973-11-30 1976-02-03 Pass & Seymour, Inc. Ground fault protective circuitry
CA1104243A (en) * 1974-06-17 1981-06-30 Lynn B. Steve Ground fault circuit interrupter module
US4013929A (en) * 1975-04-14 1977-03-22 Square D Company Multiple duty components of a ground fault receptacle

Also Published As

Publication number Publication date
FR2347798A1 (fr) 1977-11-04
FR2347798B1 (en:Method) 1984-12-21
FR2476403B1 (fr) 1986-05-30
DE2715219C2 (en:Method) 1987-09-10
FR2476403A1 (fr) 1981-08-21
IT1082997B (it) 1985-05-21
DE2715219A1 (de) 1977-10-27
GB1581363A (en) 1980-12-10
MX144094A (es) 1981-08-26
ZA771801B (en) 1978-03-29
GB1581364A (en) 1980-12-10

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Legal Events

Date Code Title Description
MKEX Expiry