EP1480244A3 - A device for containing current-sensor means - Google Patents

A device for containing current-sensor means Download PDF

Info

Publication number
EP1480244A3
EP1480244A3 EP04076452A EP04076452A EP1480244A3 EP 1480244 A3 EP1480244 A3 EP 1480244A3 EP 04076452 A EP04076452 A EP 04076452A EP 04076452 A EP04076452 A EP 04076452A EP 1480244 A3 EP1480244 A3 EP 1480244A3
Authority
EP
European Patent Office
Prior art keywords
sensor means
residual
containing current
containment
current
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
EP04076452A
Other languages
German (de)
French (fr)
Other versions
EP1480244B1 (en
EP1480244A2 (en
Inventor
Gabriele Colombo
Claudio Amadori
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.)
ABB SpA
Original Assignee
ABB Service SRL
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 ABB Service SRL filed Critical ABB Service SRL
Publication of EP1480244A2 publication Critical patent/EP1480244A2/en
Publication of EP1480244A3 publication Critical patent/EP1480244A3/en
Application granted granted Critical
Publication of EP1480244B1 publication Critical patent/EP1480244B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01F38/22—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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306—Fastening or mounting coils or windings on core, casing or other support
    • 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
    • H01H83/14—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
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

A containment structure (1) for sensor means to be used in the production of electrical-protection apparatuses, such as residual-current circuit breakers or residual-current units coupled to a circuit-breaking unit. Said structure basically comprises a first containment element (40), which can be coupled to a second containment element (50), and appropriate openings for enabling the terminals of the windings constituting said sensor means to come out.
EP20040076452 2003-05-20 2004-05-18 A device for containing current-sensor means Expired - Lifetime EP1480244B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBG20030034 2003-05-20
ITBG20030034 ITBG20030034A1 (en) 2003-05-20 2003-05-20 DEVICE FOR CONTAINING HALF CURRENT SENSORS.

Publications (3)

Publication Number Publication Date
EP1480244A2 EP1480244A2 (en) 2004-11-24
EP1480244A3 true EP1480244A3 (en) 2006-10-25
EP1480244B1 EP1480244B1 (en) 2015-04-22

Family

ID=33042671

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040076452 Expired - Lifetime EP1480244B1 (en) 2003-05-20 2004-05-18 A device for containing current-sensor means

Country Status (2)

Country Link
EP (1) EP1480244B1 (en)
IT (1) ITBG20030034A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101707128B (en) * 2009-11-08 2011-07-20 江阴市星火电子科技有限公司 Magnetic circuit open-close type current transformer
CN112951573B (en) * 2021-01-29 2022-08-19 杭州萧山玉峰电力科技有限公司 Zero sequence mutual inductor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2532793A1 (en) * 1982-09-08 1984-03-09 Merlin Gerin Short-circuit and differential hybrid trip unit equipped with a current transformer with common homopolar torus.
US4702002A (en) * 1985-04-22 1987-10-27 General Electric Company Method of forming signal processor module for ground fault circuit breaker
EP0456583A1 (en) * 1990-05-10 1991-11-13 Merlin Gerin Homopolar transformer for differential switches or circuit breakers, and mounting method
DE4111236A1 (en) * 1991-04-08 1992-10-15 Abb Patent Gmbh Sum current transducer for fault current protection switch - has secondary winding contained in insulating pot with central cylinder receiving primary
EP0611224A1 (en) * 1993-02-09 1994-08-17 Schneider Electric Sa Differential protection unit with functionally testable sub-assembly
WO1996003760A1 (en) * 1994-07-23 1996-02-08 Delta Circuit Protection & Controls Limited Current imbalance sensor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2532793A1 (en) * 1982-09-08 1984-03-09 Merlin Gerin Short-circuit and differential hybrid trip unit equipped with a current transformer with common homopolar torus.
US4702002A (en) * 1985-04-22 1987-10-27 General Electric Company Method of forming signal processor module for ground fault circuit breaker
EP0456583A1 (en) * 1990-05-10 1991-11-13 Merlin Gerin Homopolar transformer for differential switches or circuit breakers, and mounting method
DE4111236A1 (en) * 1991-04-08 1992-10-15 Abb Patent Gmbh Sum current transducer for fault current protection switch - has secondary winding contained in insulating pot with central cylinder receiving primary
EP0611224A1 (en) * 1993-02-09 1994-08-17 Schneider Electric Sa Differential protection unit with functionally testable sub-assembly
WO1996003760A1 (en) * 1994-07-23 1996-02-08 Delta Circuit Protection & Controls Limited Current imbalance sensor

Also Published As

Publication number Publication date
ITBG20030034A1 (en) 2004-11-21
EP1480244B1 (en) 2015-04-22
EP1480244A2 (en) 2004-11-24

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