FR2382081A1 - Transformateur de courant permettant un courant de court-circuit eleve - Google Patents

Transformateur de courant permettant un courant de court-circuit eleve

Info

Publication number
FR2382081A1
FR2382081A1 FR7705772A FR7705772A FR2382081A1 FR 2382081 A1 FR2382081 A1 FR 2382081A1 FR 7705772 A FR7705772 A FR 7705772A FR 7705772 A FR7705772 A FR 7705772A FR 2382081 A1 FR2382081 A1 FR 2382081A1
Authority
FR
France
Prior art keywords
short circuit
transformer
parallel
primary winding
linear impedance
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.)
Withdrawn
Application number
FR7705772A
Other languages
English (en)
Inventor
Boguslaw Kuczalek
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.)
ZAKLADY WYTWORCZE APARATURY WY
Original Assignee
ZAKLADY WYTWORCZE APARATURY WY
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 ZAKLADY WYTWORCZE APARATURY WY filed Critical ZAKLADY WYTWORCZE APARATURY WY
Priority to FR7705772A priority Critical patent/FR2382081A1/fr
Publication of FR2382081A1 publication Critical patent/FR2382081A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
    • H02H7/042—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers for current transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

Transformateur de courant permettant un courant de court-circuit élevé. Aux bornes A et B de l'enroulement primaire du transformateur de courant est connectée en parallèle une impédance non-linéaire Z. Dans les conditions de travail nominales, l'impédance non-linéaire est très grande par rapport à l'impédance Zp du transformateur, de sorte que le courant I1 passant par le transformateur est pratiquement égal au courant I dans le circuit. Après le court-circuitage, le courant I augmente sensiblement par rapport au courant dans les conditions nominales d'où une diminution sensible de l'impédance non-linéaire Z; le courant Iz dans cette impédance Z est plus grand que le courant I1 ce qui augmente son courant de court-circuit.
FR7705772A 1977-02-28 1977-02-28 Transformateur de courant permettant un courant de court-circuit eleve Withdrawn FR2382081A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7705772A FR2382081A1 (fr) 1977-02-28 1977-02-28 Transformateur de courant permettant un courant de court-circuit eleve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7705772A FR2382081A1 (fr) 1977-02-28 1977-02-28 Transformateur de courant permettant un courant de court-circuit eleve

Publications (1)

Publication Number Publication Date
FR2382081A1 true FR2382081A1 (fr) 1978-09-22

Family

ID=9187314

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7705772A Withdrawn FR2382081A1 (fr) 1977-02-28 1977-02-28 Transformateur de courant permettant un courant de court-circuit eleve

Country Status (1)

Country Link
FR (1) FR2382081A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2454206A1 (fr) * 1979-04-09 1980-11-07 Osmond Max Alimentation electrique de securite a thyristor entre masse et terre

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2454206A1 (fr) * 1979-04-09 1980-11-07 Osmond Max Alimentation electrique de securite a thyristor entre masse et terre

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Legal Events

Date Code Title Description
ST Notification of lapse