FR2219555A1 - - Google Patents

Info

Publication number
FR2219555A1
FR2219555A1 FR7406491A FR7406491A FR2219555A1 FR 2219555 A1 FR2219555 A1 FR 2219555A1 FR 7406491 A FR7406491 A FR 7406491A FR 7406491 A FR7406491 A FR 7406491A FR 2219555 A1 FR2219555 A1 FR 2219555A1
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.)
Granted
Application number
FR7406491A
Other languages
French (fr)
Other versions
FR2219555B1 (enrdf_load_stackoverflow
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 FR2219555A1 publication Critical patent/FR2219555A1/fr
Application granted granted Critical
Publication of FR2219555B1 publication Critical patent/FR2219555B1/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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
FR7406491A 1973-02-27 1974-02-26 Expired FR2219555B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB963573A GB1455845A (en) 1973-02-27 1973-02-27 Ground fault protection system

Publications (2)

Publication Number Publication Date
FR2219555A1 true FR2219555A1 (enrdf_load_stackoverflow) 1974-09-20
FR2219555B1 FR2219555B1 (enrdf_load_stackoverflow) 1982-03-19

Family

ID=9875805

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7406491A Expired FR2219555B1 (enrdf_load_stackoverflow) 1973-02-27 1974-02-26

Country Status (5)

Country Link
CA (1) CA1005119A (enrdf_load_stackoverflow)
FR (1) FR2219555B1 (enrdf_load_stackoverflow)
GB (1) GB1455845A (enrdf_load_stackoverflow)
IT (1) IT1009180B (enrdf_load_stackoverflow)
ZA (1) ZA741087B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2303369A1 (fr) * 1975-03-01 1976-10-01 Reichensperger Guenter Disjoncteur de protection
FR2309062A1 (fr) * 1975-04-22 1976-11-19 Rca Corp Dispositif de detection de defauts a la terre dans un reseau electrique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2303369A1 (fr) * 1975-03-01 1976-10-01 Reichensperger Guenter Disjoncteur de protection
FR2309062A1 (fr) * 1975-04-22 1976-11-19 Rca Corp Dispositif de detection de defauts a la terre dans un reseau electrique

Also Published As

Publication number Publication date
GB1455845A (en) 1976-11-17
ZA741087B (en) 1975-01-29
CA1005119A (en) 1977-02-08
FR2219555B1 (enrdf_load_stackoverflow) 1982-03-19
IT1009180B (it) 1976-12-10

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Legal Events

Date Code Title Description
ST Notification of lapse