GB1220522A - Electromagnetic trip device - Google Patents

Electromagnetic trip device

Info

Publication number
GB1220522A
GB1220522A GB2014568A GB2014568A GB1220522A GB 1220522 A GB1220522 A GB 1220522A GB 2014568 A GB2014568 A GB 2014568A GB 2014568 A GB2014568 A GB 2014568A GB 1220522 A GB1220522 A GB 1220522A
Authority
GB
United Kingdom
Prior art keywords
attracted
plunger
cover
occurrence
tripping
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
GB2014568A
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 GB1220522A publication Critical patent/GB1220522A/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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/34—Electromagnetic mechanisms having two or more armatures controlled by a common winding
    • H01H71/345—Electromagnetic mechanisms having two or more armatures controlled by a common winding having a delayed movable core and a movable armature

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)

Abstract

1,220,522. Circuit breaker tripping mechanisms. MITSUBISHI DENKI K.K. 29 April, 1968 [28 April, 1967], No. 20145/68. Heading H1N. On the occurrence of a small prolonged overload current, e.g. 1À25 times the rated current, plunger 4 will be attracted against spring 5 and under the control of oil in a surrounding brass cylinder 3 to a magnetic cover 6 of the cylinder 3 whereupon a pivoted tripping armature 11 will be attracted; on the occurrence of a momentary heavy overload, e.g. 5 to 10 times the rated current, the movement of plunger 4 will be damped by the oil and the tripping armature will not be attracted; but on the occurrence of a sustained heavy overload plunger 4 will be attracted towards cover 6, tripping armature 11 being attracted before the plunger 4 reaches the cover by the magnetic saturation of a shunt plate B secured to a yoke 1, such saturation diverting the flux through the cover 6 and tripping armature 11.
GB2014568A 1967-04-28 1968-04-29 Electromagnetic trip device Expired GB1220522A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2727067 1967-04-28

Publications (1)

Publication Number Publication Date
GB1220522A true GB1220522A (en) 1971-01-27

Family

ID=12216371

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2014568A Expired GB1220522A (en) 1967-04-28 1968-04-29 Electromagnetic trip device

Country Status (2)

Country Link
GB (1) GB1220522A (en)
MY (1) MY7200020A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156156A (en) * 1984-03-15 1985-10-02 Hager Electro Gmbh & Co Electromagnetic switch arrangement
EP1310971A2 (en) * 2001-10-18 2003-05-14 Circuit Breaker Industries Limited Adjustable circuit breaker mechanism
CN114284113A (en) * 2020-12-09 2022-04-05 中国铁道科学研究院集团有限公司 Tripping device and circuit breaker

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156156A (en) * 1984-03-15 1985-10-02 Hager Electro Gmbh & Co Electromagnetic switch arrangement
EP1310971A2 (en) * 2001-10-18 2003-05-14 Circuit Breaker Industries Limited Adjustable circuit breaker mechanism
EP1310971A3 (en) * 2001-10-18 2003-08-20 Circuit Breaker Industries Limited Adjustable circuit breaker mechanism
CN114284113A (en) * 2020-12-09 2022-04-05 中国铁道科学研究院集团有限公司 Tripping device and circuit breaker
CN114284113B (en) * 2020-12-09 2024-04-16 中国铁道科学研究院集团有限公司 Tripping device and circuit breaker

Also Published As

Publication number Publication date
MY7200020A (en) 1972-12-31

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