GB1496732A - Short-circuit current limiter - Google Patents

Short-circuit current limiter

Info

Publication number
GB1496732A
GB1496732A GB2071375A GB2071375A GB1496732A GB 1496732 A GB1496732 A GB 1496732A GB 2071375 A GB2071375 A GB 2071375A GB 2071375 A GB2071375 A GB 2071375A GB 1496732 A GB1496732 A GB 1496732A
Authority
GB
United Kingdom
Prior art keywords
movable contact
spring
fixed
armature
contacts
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
Application number
GB2071375A
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.)
HAZEMEYER SA
Original Assignee
HAZEMEYER 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 HAZEMEYER SA filed Critical HAZEMEYER SA
Publication of GB1496732A publication Critical patent/GB1496732A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/504—Manual reset mechanisms which may be also used for manual release provided with anti-rebound means
    • 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
    • H01H71/2472—Electromagnetic mechanisms with rotatable armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
    • H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
    • H01H77/10—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening
    • H01H77/102—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening characterised by special mounting of contact arm, allowing blow-off movement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
    • H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
    • H01H77/06—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electromagnetic opening

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

1496732 Electrodynamic switches HAZEMEYER SA 15 May 1975 [21 May 1974] 20713/75 Heading H1N In a current limiter comprising a fixed 3 and a movable contact 4 shaped so that when an electric current greater than a threshold value flows through them an electrodynamic repulsion force is generated between them to pivot the movable contact about an axis to separate it from the fixed contact, a spring 5 urging the contacts together connects the movable contact with a pivoted element 9 which moves under the interaction between an armature 25 fixed in the element 9 and an electromagnet 27 in series with the fixed contact circuit, the arrangement being such that the armature is operated by the electromagnet at currents at the threshold value to pivot the element 9 and displace the spring 5 so that the force of the spring on the movable contact reduces and then reverses direction. After the current is cut off the armature 25 is released and under the action of the spring 5, the pivoted element 9 returns to its original position and the contacts remake. Reclosure of the contacts may be delayed by means of a dashpot or suction membrane and the current limiter may be combined with a circuit breaker, Fig. 5, not shown. Rebound of the movable contact is damped by special configuration of the pivot support of the element 9.
GB2071375A 1974-05-21 1975-05-15 Short-circuit current limiter Expired GB1496732A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7417579A FR2272479B1 (en) 1974-05-21 1974-05-21

Publications (1)

Publication Number Publication Date
GB1496732A true GB1496732A (en) 1977-12-30

Family

ID=9139097

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2071375A Expired GB1496732A (en) 1974-05-21 1975-05-15 Short-circuit current limiter

Country Status (8)

Country Link
BE (1) BE829273A (en)
DE (1) DE2522211C3 (en)
ES (1) ES437452A1 (en)
FR (1) FR2272479B1 (en)
GB (1) GB1496732A (en)
IT (1) IT1032923B (en)
LU (1) LU72527A1 (en)
NL (1) NL7505611A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102891047A (en) * 2012-09-26 2013-01-23 常熟开关制造有限公司(原常熟开关厂） Conductive loop structure of switch device
CN102064057B (en) * 2009-11-12 2013-03-27 徐浩明 Miniature circuit breaker current limiter

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2553930B1 (en) * 1983-10-21 1986-05-09 Merlin Gerin REVERSIBLE MECHANISM FOR CONTROLLING A MULTIPOLAR LIMITING CIRCUIT BREAKER
US4553119A (en) * 1984-05-10 1985-11-12 General Electric Company Electric circuit breaker having reduced arc energy
FR2648952B1 (en) * 1989-06-26 1991-09-13 Merlin Gerin LIMITING CIRCUIT BREAKER HAVING AN ELECTROMAGNETIC EFFECT CONTACT DELAY RETARDER
FR2756414B1 (en) * 1996-11-25 1998-12-24 Schneider Electric Sa ELECTROMAGNETIC SWITCHING APPARATUS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102064057B (en) * 2009-11-12 2013-03-27 徐浩明 Miniature circuit breaker current limiter
CN102891047A (en) * 2012-09-26 2013-01-23 常熟开关制造有限公司(原常熟开关厂） Conductive loop structure of switch device
CN102891047B (en) * 2012-09-26 2013-12-11 常熟开关制造有限公司(原常熟开关厂） Conductive loop structure of switch device

Also Published As

Publication number Publication date
FR2272479A1 (en) 1975-12-19
DE2522211B2 (en) 1978-08-17
LU72527A1 (en) 1976-03-17
DE2522211C3 (en) 1979-04-26
BE829273A (en) 1975-11-20
DE2522211A1 (en) 1975-12-04
ES437452A1 (en) 1977-05-16
NL7505611A (en) 1975-11-25
IT1032923B (en) 1979-06-20
FR2272479B1 (en) 1978-11-03

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee