FR2423043A1 - Transformateur differentiel, notamment pour disjoncteurs de protection contre les courants de defaut - Google Patents

Transformateur differentiel, notamment pour disjoncteurs de protection contre les courants de defaut

Info

Publication number
FR2423043A1
FR2423043A1 FR7905290A FR7905290A FR2423043A1 FR 2423043 A1 FR2423043 A1 FR 2423043A1 FR 7905290 A FR7905290 A FR 7905290A FR 7905290 A FR7905290 A FR 7905290A FR 2423043 A1 FR2423043 A1 FR 2423043A1
Authority
FR
France
Prior art keywords
differential transformer
protection circuit
circuit breakers
fault current
current protection
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.)
Granted
Application number
FR7905290A
Other languages
English (en)
Other versions
FR2423043B1 (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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of FR2423043A1 publication Critical patent/FR2423043A1/fr
Application granted granted Critical
Publication of FR2423043B1 publication Critical patent/FR2423043B1/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
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2895—Windings disposed upon ring cores
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/16—Toroidal transformers
    • 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
    • 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
    • H01F2038/305—Constructions with toroidal magnetic core
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformers For Measuring Instruments (AREA)

Abstract

Transformateur différentiel comportant, disposées autour de son noyau annulaire, des spires de conducteurs massifs isolés et reliés les uns aux autres. Les spires 2 des conducteurs, présentant un potentiel différent, sont assemblées par brasage ou soudage sur la face extérieure du noyau 1, en des points 4 décalés les uns par rapport aux autres.
FR7905290A 1978-04-10 1979-02-28 Transformateur differentiel, notamment pour disjoncteurs de protection contre les courants de defaut Granted FR2423043A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19787810616U DE7810616U1 (de) 1978-04-10 1978-04-10 Summenstromwandler, insbesondere fuer fehlerstromschutzschalter

Publications (2)

Publication Number Publication Date
FR2423043A1 true FR2423043A1 (fr) 1979-11-09
FR2423043B1 FR2423043B1 (fr) 1982-02-19

Family

ID=6690326

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7905290A Granted FR2423043A1 (fr) 1978-04-10 1979-02-28 Transformateur differentiel, notamment pour disjoncteurs de protection contre les courants de defaut

Country Status (4)

Country Link
DE (1) DE7810616U1 (fr)
FR (1) FR2423043A1 (fr)
GB (1) GB2018522B (fr)
IT (1) IT1112047B (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1081561B (de) * 1959-01-08 1960-05-12 Purrmann & Herr G M B H Strom- bzw. Spannungswandler mit zweiteiliger Primaeranschlussschiene
FR1506712A (fr) * 1965-12-21 1967-12-22 English Electric Co Ltd Procédé de formage d'un enroulement électrique sur un noyau toroïdal et noyau magnétique obtenu par ce procédé
FR1520183A (fr) * 1966-04-22 1968-04-05 Siemens Ag Transformateur totalisateur de courant pour disjoncteurs de protection contre les courants de défaut
DE2503691A1 (de) * 1975-01-30 1976-08-05 Bbc Brown Boveri & Cie Ringkernwandler
FR2376504A1 (fr) * 1976-12-31 1978-07-28 Siemens Ag Transformateur de courant totalisateur, en particulier pour disjoncteur de protection contre les courants de defaut
DE2717417A1 (de) * 1977-04-20 1978-10-26 Condor Werk Frede Kg Geb Verfahren und vorrichtung zur herstellung der bewicklung von summenstromwandlern

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1081561B (de) * 1959-01-08 1960-05-12 Purrmann & Herr G M B H Strom- bzw. Spannungswandler mit zweiteiliger Primaeranschlussschiene
FR1506712A (fr) * 1965-12-21 1967-12-22 English Electric Co Ltd Procédé de formage d'un enroulement électrique sur un noyau toroïdal et noyau magnétique obtenu par ce procédé
FR1520183A (fr) * 1966-04-22 1968-04-05 Siemens Ag Transformateur totalisateur de courant pour disjoncteurs de protection contre les courants de défaut
DE2503691A1 (de) * 1975-01-30 1976-08-05 Bbc Brown Boveri & Cie Ringkernwandler
FR2376504A1 (fr) * 1976-12-31 1978-07-28 Siemens Ag Transformateur de courant totalisateur, en particulier pour disjoncteur de protection contre les courants de defaut
DE2717417A1 (de) * 1977-04-20 1978-10-26 Condor Werk Frede Kg Geb Verfahren und vorrichtung zur herstellung der bewicklung von summenstromwandlern

Also Published As

Publication number Publication date
IT1112047B (it) 1986-01-13
FR2423043B1 (fr) 1982-02-19
DE7810616U1 (de) 1979-09-20
IT7921530A0 (it) 1979-04-03
GB2018522A (en) 1979-10-17
GB2018522B (en) 1982-10-06

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Legal Events

Date Code Title Description
ST Notification of lapse