FR2030487A5 - - Google Patents

Info

Publication number
FR2030487A5
FR2030487A5 FR6901979A FR6901979A FR2030487A5 FR 2030487 A5 FR2030487 A5 FR 2030487A5 FR 6901979 A FR6901979 A FR 6901979A FR 6901979 A FR6901979 A FR 6901979A FR 2030487 A5 FR2030487 A5 FR 2030487A5
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
FR6901979A
Other languages
French (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.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite SA
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 Compagnie Generale dElectricite SA filed Critical Compagnie Generale dElectricite SA
Priority to FR6901979A priority Critical patent/FR2030487A5/fr
Application granted granted Critical
Publication of FR2030487A5 publication Critical patent/FR2030487A5/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/38—Instruments transformers for polyphase ac
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers
    • H01F38/30—Constructions
    • 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
    • H01H2083/146—Provisions for avoiding disadvantages of having asymetrical primaries, e.g. induction of a magnetic field even by zero difference current
    • 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
    • H01H2083/148—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 with primary windings formed of rigid copper conductors
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
FR6901979A 1969-01-30 1969-01-30 Expired FR2030487A5 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6901979A FR2030487A5 (de) 1969-01-30 1969-01-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6901979A FR2030487A5 (de) 1969-01-30 1969-01-30

Publications (1)

Publication Number Publication Date
FR2030487A5 true FR2030487A5 (de) 1970-11-13

Family

ID=9028405

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6901979A Expired FR2030487A5 (de) 1969-01-30 1969-01-30

Country Status (1)

Country Link
FR (1) FR2030487A5 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2282714A1 (fr) * 1974-08-21 1976-03-19 Condor Werk Frede Kg Geb Disjoncteur par courant de defaut
EP0615269A1 (de) * 1993-03-09 1994-09-14 Hager Electro S.A. Vorrichtung zur Bestimmung der Unsymmetrie des Stroms, insbesondere für Differenzstromschalter
FR2738952A1 (fr) * 1995-09-19 1997-03-21 Hitachi Ltd Disjoncteur de protection contre les fuites a la masse
DE102008051561A1 (de) * 2008-10-14 2010-05-06 Vacuumschmelze Gmbh & Co. Kg Verfahren zum Herstellen einer Stromerfassungseinrichtung
DE102010004223B4 (de) * 2010-01-08 2013-12-05 Vacuumschmelze Gmbh & Co. Kg Verfahren zum Herstellen einer Stromerfassungseinrichtung

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2282714A1 (fr) * 1974-08-21 1976-03-19 Condor Werk Frede Kg Geb Disjoncteur par courant de defaut
EP0615269A1 (de) * 1993-03-09 1994-09-14 Hager Electro S.A. Vorrichtung zur Bestimmung der Unsymmetrie des Stroms, insbesondere für Differenzstromschalter
FR2702605A1 (fr) * 1993-03-09 1994-09-16 Hager Electro Dispositif de détection de déséquilibre de courant, notamment pour interrupteur différentiel.
FR2738952A1 (fr) * 1995-09-19 1997-03-21 Hitachi Ltd Disjoncteur de protection contre les fuites a la masse
DE102008051561A1 (de) * 2008-10-14 2010-05-06 Vacuumschmelze Gmbh & Co. Kg Verfahren zum Herstellen einer Stromerfassungseinrichtung
DE102008051561B4 (de) * 2008-10-14 2013-06-20 Vacuumschmelze Gmbh & Co. Kg Verfahren zum Herstellen einer Stromerfassungseinrichtung
DE102010004223B4 (de) * 2010-01-08 2013-12-05 Vacuumschmelze Gmbh & Co. Kg Verfahren zum Herstellen einer Stromerfassungseinrichtung
US8813355B2 (en) 2010-01-08 2014-08-26 Vacuumschmelze Gmbh & Co. Kg Method for producing a current metering device

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Legal Events

Date Code Title Description
ST Notification of lapse