EP4266343B1 - Overcurrent trip device, and circuit breaker using same - Google Patents

Overcurrent trip device, and circuit breaker using same

Info

Publication number
EP4266343B1
EP4266343B1 EP20965940.8A EP20965940A EP4266343B1 EP 4266343 B1 EP4266343 B1 EP 4266343B1 EP 20965940 A EP20965940 A EP 20965940A EP 4266343 B1 EP4266343 B1 EP 4266343B1
Authority
EP
European Patent Office
Prior art keywords
conductor
core
spring
trip device
moving
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.)
Active
Application number
EP20965940.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4266343A1 (en
EP4266343A4 (en
Inventor
Hiroshi Sasaki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP4266343A1 publication Critical patent/EP4266343A1/en
Publication of EP4266343A4 publication Critical patent/EP4266343A4/en
Application granted granted Critical
Publication of EP4266343B1 publication Critical patent/EP4266343B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/36—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electromagnetic release and no other automatic release
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2409—Electromagnetic mechanisms combined with an electromagnetic current limiting mechanism
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2454—Electromagnetic mechanisms characterised by the magnetic circuit or active magnetic elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H2071/249—Electromagnetic mechanisms with part of the magnetic circuit being in the normal current path in the circuit breaker, e.g. yoke, fixed contact and arc-runner are made out of one single conductive element

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
EP20965940.8A 2020-12-17 2020-12-17 Overcurrent trip device, and circuit breaker using same Active EP4266343B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/047083 WO2022130552A1 (ja) 2020-12-17 2020-12-17 過電流引外し装置およびこれを用いた回路遮断器

Publications (3)

Publication Number Publication Date
EP4266343A1 EP4266343A1 (en) 2023-10-25
EP4266343A4 EP4266343A4 (en) 2024-03-06
EP4266343B1 true EP4266343B1 (en) 2026-04-15

Family

ID=82059220

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20965940.8A Active EP4266343B1 (en) 2020-12-17 2020-12-17 Overcurrent trip device, and circuit breaker using same

Country Status (3)

Country Link
EP (1) EP4266343B1 (https=)
JP (1) JP7412600B2 (https=)
WO (1) WO2022130552A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4567853A1 (en) * 2023-12-05 2025-06-11 ALSTOM Holdings High speed circuit breaker comprising a movable magnetic shim in an air gap of a magnetic circuit

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501929A1 (fr) * 1981-03-10 1982-09-17 Merlin Gerin Disjoncteur basse tension et procede de fabrication d'un capteur de courant
JPS60119705A (ja) * 1983-12-01 1985-06-27 Mitsubishi Mining & Cement Co Ltd 電磁引外し装置
JPH0431724Y2 (https=) * 1987-10-07 1992-07-30
JP3311917B2 (ja) * 1996-01-22 2002-08-05 寺崎電気産業株式会社 引出型回路遮断器
DE29723307U1 (de) * 1997-04-11 1998-08-06 AEG Niederspannungstechnik GmbH & Co KG, 24534 Neumünster Schneller Überstromauslöser für Gleichstromschnellschalter
WO2016204104A1 (ja) * 2015-06-19 2016-12-22 三菱電機株式会社 過電流引外し装置及びこれを用いた回路遮断器
EP3971933B1 (en) * 2019-05-16 2023-04-12 Mitsubishi Electric Corporation Overcurrent tripping device, and circuit breaker in which overcurrent tripping device is used

Also Published As

Publication number Publication date
JPWO2022130552A1 (https=) 2022-06-23
JP7412600B2 (ja) 2024-01-12
EP4266343A1 (en) 2023-10-25
WO2022130552A1 (ja) 2022-06-23
EP4266343A4 (en) 2024-03-06

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