FR2738952B1 - Disjoncteur de protection contre les fuites a la masse - Google Patents

Disjoncteur de protection contre les fuites a la masse

Info

Publication number
FR2738952B1
FR2738952B1 FR9611370A FR9611370A FR2738952B1 FR 2738952 B1 FR2738952 B1 FR 2738952B1 FR 9611370 A FR9611370 A FR 9611370A FR 9611370 A FR9611370 A FR 9611370A FR 2738952 B1 FR2738952 B1 FR 2738952B1
Authority
FR
France
Prior art keywords
circuit breaker
protection circuit
leakage protection
mass leakage
mass
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.)
Expired - Fee Related
Application number
FR9611370A
Other languages
English (en)
French (fr)
Other versions
FR2738952A1 (fr
Inventor
Koichi Yokoyama
Yukihide Yamada
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of FR2738952A1 publication Critical patent/FR2738952A1/fr
Application granted granted Critical
Publication of FR2738952B1 publication Critical patent/FR2738952B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
  • Transformers For Measuring Instruments (AREA)
FR9611370A 1995-09-19 1996-09-18 Disjoncteur de protection contre les fuites a la masse Expired - Fee Related FR2738952B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7239509A JPH0992127A (ja) 1995-09-19 1995-09-19 漏電遮断器

Publications (2)

Publication Number Publication Date
FR2738952A1 FR2738952A1 (fr) 1997-03-21
FR2738952B1 true FR2738952B1 (fr) 1999-07-23

Family

ID=17045856

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9611370A Expired - Fee Related FR2738952B1 (fr) 1995-09-19 1996-09-18 Disjoncteur de protection contre les fuites a la masse

Country Status (4)

Country Link
JP (1) JPH0992127A (zh)
CN (1) CN1078009C (zh)
FR (1) FR2738952B1 (zh)
SG (1) SG87747A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4736949B2 (ja) * 2006-05-23 2011-07-27 富士電機機器制御株式会社 漏電遮断器
JP2011205025A (ja) * 2010-03-26 2011-10-13 Kawamura Electric Inc 零相変流器
JP5587008B2 (ja) * 2010-03-26 2014-09-10 河村電器産業株式会社 零相変流器
JP5465599B2 (ja) * 2010-05-17 2014-04-09 河村電器産業株式会社 零相変流器
FR3045926B1 (fr) * 2015-12-22 2017-12-22 Schneider Electric Ind Sas Transformateur permettant d'assurer l'alimentation d'un dispositif de traitement dans un appareil de protection electrique, et appareil comportant un tel transformateur

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2030487A5 (zh) * 1969-01-30 1970-11-13 Comp Generale Electricite
DE3737989C1 (de) * 1987-11-09 1989-05-11 Messwandler Bau Ag Hochspannungsspannungswandler
FR2679037B1 (fr) * 1991-07-10 1994-12-30 Abb Petercem Capteur de courant.
US5276416A (en) * 1991-09-20 1994-01-04 Kabushiki Kaisha Toshiba Circuit breaker
FR2687477B1 (fr) * 1992-02-14 1996-06-07 Abb Petercem Capteur de courant.
JPH06267396A (ja) * 1993-03-16 1994-09-22 Hitachi Ltd 零相変流器
JP2862054B2 (ja) * 1993-04-06 1999-02-24 三菱電機株式会社 零相電流検出装置
JP2651105B2 (ja) * 1993-06-16 1997-09-10 株式会社日立製作所 漏電遮断器

Also Published As

Publication number Publication date
JPH0992127A (ja) 1997-04-04
SG87747A1 (en) 2002-04-16
CN1185646A (zh) 1998-06-24
CN1078009C (zh) 2002-01-16
FR2738952A1 (fr) 1997-03-21

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20070531