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EP0403216A3 - Electromagnetic actuator arrangement - Google Patents

Electromagnetic actuator arrangement Download PDF

Info

Publication number
EP0403216A3
EP0403216A3 EP19900306372 EP90306372A EP0403216A3 EP 0403216 A3 EP0403216 A3 EP 0403216A3 EP 19900306372 EP19900306372 EP 19900306372 EP 90306372 A EP90306372 A EP 90306372A EP 0403216 A3 EP0403216 A3 EP 0403216A3
Authority
EP
European Patent Office
Prior art keywords
armature
winding
electromagnetic actuator
actuator arrangement
energised
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
EP19900306372
Other languages
German (de)
French (fr)
Other versions
EP0403216B1 (en
EP0403216A2 (en
Inventor
Colin Turner
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.)
Husqvarna UK Ltd
Original Assignee
Electrolux Outdoor Products Ltd
Electrolux Northern 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 Electrolux Outdoor Products Ltd, Electrolux Northern Ltd filed Critical Electrolux Outdoor Products Ltd
Publication of EP0403216A2 publication Critical patent/EP0403216A2/en
Publication of EP0403216A3 publication Critical patent/EP0403216A3/en
Application granted granted Critical
Publication of EP0403216B1 publication Critical patent/EP0403216B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01H71/12—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
    • 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
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Electromagnets (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

An electromagnetic actuator arrangement comprising a switch (SW1) biased open by a biasing spring (SP) and operated by a yoke (Y1) which attracts an armature (AR1) when its winding (L1) is energised is provided with means (C1, SCR1) for instantaneously reversing the magnetising force acting on the armature when the winding (L1) is de-energised. As a result, the residual magnetism in the armature (AR1) is opposed by the reversed magnetic field from the winding (L1) and the tendency of the armature to stick to the yoke is avoided. Consequently the release time is reduced.
EP19900306372 1989-06-14 1990-06-12 Electromagnetic actuator arrangement Expired - Lifetime EP0403216B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8913633 1989-06-14
GB898913633A GB8913633D0 (en) 1989-06-14 1989-06-14 Electromagnetic actuator arrangement

Publications (3)

Publication Number Publication Date
EP0403216A2 EP0403216A2 (en) 1990-12-19
EP0403216A3 true EP0403216A3 (en) 1992-07-08
EP0403216B1 EP0403216B1 (en) 1994-08-24

Family

ID=10658400

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900306372 Expired - Lifetime EP0403216B1 (en) 1989-06-14 1990-06-12 Electromagnetic actuator arrangement

Country Status (8)

Country Link
EP (1) EP0403216B1 (en)
JP (1) JPH0395905A (en)
AU (1) AU624960B2 (en)
CA (1) CA2018965A1 (en)
DE (1) DE69011757T2 (en)
DK (1) DK0403216T3 (en)
ES (1) ES2057408T3 (en)
GB (1) GB8913633D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU673705B2 (en) * 1993-01-29 1996-11-21 H.P.M. Industries Pty Limited Fault detection circuit breaker
ITUB20169940A1 (en) * 2016-01-12 2017-07-12 Antonio Ricciardiello CIRCUIT INTERRUPTION DEVICE

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE532028C (en) * 1929-05-27 1931-08-25 Siemens Schuckertwerke Akt Ges Quick switch
US3280375A (en) * 1963-01-17 1966-10-18 Ite Circuit Breaker Ltd Tripping device
US4063299A (en) * 1975-10-24 1977-12-13 Eagle Electric Mfg. Co. Inc. Magnetically latched ground fault circuit interrupter
GB2000379A (en) * 1977-06-27 1979-01-04 Weber Ag Fab Elektro Magnetic trip mechanism for automatic cut-out
EP0016458A1 (en) * 1979-03-26 1980-10-01 Fuji Electric Co. Ltd. Earth fault circuit breaker responding also to direct fault currents
GB2204199A (en) * 1987-05-02 1988-11-02 Ashley Accessories Ltd Residual current circuit breaker

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442470A (en) * 1982-09-10 1984-04-10 Westinghouse Electric Corp. Ground fault receptacle with arrangement for protecting internal electronics
FR2604294B1 (en) * 1986-09-23 1994-05-20 Merlin Et Gerin MULTIPOLAR DIFFERENTIAL CIRCUIT BREAKER WITH MODULAR ASSEMBLY
US4739293A (en) * 1987-02-19 1988-04-19 Westinghouse Electric Corp. Electromagnetic contactor with reduced noise magnetic armature

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE532028C (en) * 1929-05-27 1931-08-25 Siemens Schuckertwerke Akt Ges Quick switch
US3280375A (en) * 1963-01-17 1966-10-18 Ite Circuit Breaker Ltd Tripping device
US4063299A (en) * 1975-10-24 1977-12-13 Eagle Electric Mfg. Co. Inc. Magnetically latched ground fault circuit interrupter
GB2000379A (en) * 1977-06-27 1979-01-04 Weber Ag Fab Elektro Magnetic trip mechanism for automatic cut-out
EP0016458A1 (en) * 1979-03-26 1980-10-01 Fuji Electric Co. Ltd. Earth fault circuit breaker responding also to direct fault currents
GB2204199A (en) * 1987-05-02 1988-11-02 Ashley Accessories Ltd Residual current circuit breaker

Also Published As

Publication number Publication date
AU624960B2 (en) 1992-06-25
EP0403216B1 (en) 1994-08-24
ES2057408T3 (en) 1994-10-16
EP0403216A2 (en) 1990-12-19
JPH0395905A (en) 1991-04-22
DK0403216T3 (en) 1995-01-02
CA2018965A1 (en) 1990-12-14
GB8913633D0 (en) 1989-08-02
AU5700190A (en) 1990-12-20
DE69011757T2 (en) 1995-04-27
DE69011757D1 (en) 1994-09-29

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