ZA962964B - A current transformer notably for a trip device by fault current sensitive to pulsed currents and a trip device equipped with such a transformer - Google Patents

A current transformer notably for a trip device by fault current sensitive to pulsed currents and a trip device equipped with such a transformer

Info

Publication number
ZA962964B
ZA962964B ZA962964A ZA962964A ZA962964B ZA 962964 B ZA962964 B ZA 962964B ZA 962964 A ZA962964 A ZA 962964A ZA 962964 A ZA962964 A ZA 962964A ZA 962964 B ZA962964 B ZA 962964B
Authority
ZA
South Africa
Prior art keywords
trip device
transformer
notably
current
pulsed currents
Prior art date
Application number
ZA962964A
Inventor
Michel Bonniau
Marc Paupert
Original Assignee
Schneider Electric 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 Schneider Electric Sa filed Critical Schneider Electric Sa
Publication of ZA962964B publication Critical patent/ZA962964B/en

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
    • H02H3/332—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 with means responsive to DC component in the fault current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H01F1/15308—Amorphous metallic alloys, e.g. glassy metals based on Fe/Ni
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H01F1/15333—Amorphous metallic alloys, e.g. glassy metals containing nanocrystallites, e.g. obtained by annealing
    • 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
    • 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
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
    • H01H83/226—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with differential transformer

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Dispersion Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Soft Magnetic Materials (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Transformers For Measuring Instruments (AREA)
ZA962964A 1995-04-18 1996-04-15 A current transformer notably for a trip device by fault current sensitive to pulsed currents and a trip device equipped with such a transformer ZA962964B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9504852A FR2733376B1 (en) 1995-04-18 1995-04-18 CURRENT TRANSFORMER ESPECIALLY FOR FAULT CURRENT TRIGGER SENSITIVE TO PULSED CURRENTS AND TRIGGER EQUIPPED WITH SUCH A TRANSFORMER

Publications (1)

Publication Number Publication Date
ZA962964B true ZA962964B (en) 1996-10-22

Family

ID=9478371

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA962964A ZA962964B (en) 1995-04-18 1996-04-15 A current transformer notably for a trip device by fault current sensitive to pulsed currents and a trip device equipped with such a transformer

Country Status (7)

Country Link
EP (1) EP0821830B1 (en)
CN (1) CN1084522C (en)
DE (1) DE69621925T2 (en)
ES (1) ES2176455T3 (en)
FR (1) FR2733376B1 (en)
WO (1) WO1996033505A1 (en)
ZA (1) ZA962964B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2755532B1 (en) * 1996-11-07 1998-12-04 Schneider Electric Sa CURRENT TRANSFORMER, TRIGGER AND CIRCUIT BREAKER COMPRISING SUCH A TRANSFORMER
FR2772182B1 (en) * 1997-12-04 2000-01-14 Mecagis METHOD FOR MANUFACTURING A NANOCRYSTALLINE SOFT MAGNETIC ALLOY MAGNETIC CORE AND USE IN AN AC CLASS DIFFERENTIAL CIRCUIT BREAKER
FR2772181B1 (en) * 1997-12-04 2000-01-14 Mecagis METHOD FOR MANUFACTURING A NANOCRYSTALLINE SOFT MAGNETIC ALLOY MAGNETIC CORE FOR USE IN A CLASS A DIFFERENTIAL CIRCUIT BREAKER AND MAGNETIC CORE OBTAINED
EP2209127A1 (en) * 2009-01-14 2010-07-21 ArcelorMittal - Stainless & Nickel Alloys Method for manufacturing a magnetic core from a magnetic alloy having a nanocrystalline structure
CN101562356B (en) * 2009-05-11 2011-06-22 朱振凡 Medium voltage power line broadband coupling device and preparation method thereof
DE102017201239A1 (en) * 2017-01-26 2018-07-26 Siemens Aktiengesellschaft breakers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4881989A (en) * 1986-12-15 1989-11-21 Hitachi Metals, Ltd. Fe-base soft magnetic alloy and method of producing same
JP2698369B2 (en) * 1988-03-23 1998-01-19 日立金属株式会社 Low frequency transformer alloy and low frequency transformer using the same
DE4108802A1 (en) * 1991-03-18 1992-09-24 Vacuumschmelze Gmbh MEASURING CONVERTER FOR ELECTRONIC ARRANGEMENTS FOR THE FAST DETECTION OF SHORT CIRCUITS
DE4210748C1 (en) * 1992-04-01 1993-12-16 Vacuumschmelze Gmbh Current transformers for pulse current sensitive residual current circuit breakers, residual current circuit breakers with such a current transformer, and method for heat treatment of the iron alloy strip for its magnetic core

Also Published As

Publication number Publication date
DE69621925T2 (en) 2003-02-06
WO1996033505A1 (en) 1996-10-24
FR2733376A1 (en) 1996-10-25
CN1185857A (en) 1998-06-24
DE69621925D1 (en) 2002-07-25
EP0821830B1 (en) 2002-06-19
CN1084522C (en) 2002-05-08
EP0821830A1 (en) 1998-02-04
FR2733376B1 (en) 1997-06-06
ES2176455T3 (en) 2002-12-01

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