FR2277429B1 - - Google Patents

Info

Publication number
FR2277429B1
FR2277429B1 FR7521027A FR7521027A FR2277429B1 FR 2277429 B1 FR2277429 B1 FR 2277429B1 FR 7521027 A FR7521027 A FR 7521027A FR 7521027 A FR7521027 A FR 7521027A FR 2277429 B1 FR2277429 B1 FR 2277429B1
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
FR7521027A
Other languages
French (fr)
Other versions
FR2277429A1 (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.)
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
Publication of FR2277429A1 publication Critical patent/FR2277429A1/fr
Application granted granted Critical
Publication of FR2277429B1 publication Critical patent/FR2277429B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
    • H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
FR7521027A 1974-07-05 1975-07-04 Disjoncteur portatif sensible a un defaut de terre Granted FR2277429A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US48604574A 1974-07-05 1974-07-05

Publications (2)

Publication Number Publication Date
FR2277429A1 FR2277429A1 (fr) 1976-01-30
FR2277429B1 true FR2277429B1 (enrdf_load_stackoverflow) 1981-05-29

Family

ID=23930390

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7521027A Granted FR2277429A1 (fr) 1974-07-05 1975-07-04 Disjoncteur portatif sensible a un defaut de terre

Country Status (6)

Country Link
CA (1) CA1058739A (enrdf_load_stackoverflow)
DE (1) DE2529713A1 (enrdf_load_stackoverflow)
FR (1) FR2277429A1 (enrdf_load_stackoverflow)
GB (1) GB1521082A (enrdf_load_stackoverflow)
IT (1) IT1036450B (enrdf_load_stackoverflow)
ZA (1) ZA754168B (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5144516A (en) * 1991-02-04 1992-09-01 Wing Shing Products Company, Ltd. Leakage current circuit interrupter device
NO304860B1 (no) * 1991-07-22 1999-02-22 Pdl Holdings Ltd Brytermekanisme

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3555360A (en) * 1969-03-20 1971-01-12 Hubbell Inc Harvey Phase controlled ground fault circuit interrupter

Also Published As

Publication number Publication date
IT1036450B (it) 1979-10-30
ZA754168B (en) 1976-06-30
CA1058739A (en) 1979-07-17
FR2277429A1 (fr) 1976-01-30
GB1521082A (en) 1978-08-09
DE2529713A1 (de) 1976-01-22
DE2529713C2 (enrdf_load_stackoverflow) 1987-10-22

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Legal Events

Date Code Title Description
ST Notification of lapse