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GB2004700A - Circuit breaker trip - Google Patents

Circuit breaker trip

Info

Publication number
GB2004700A
GB2004700A GB7832415A GB7832415A GB2004700A GB 2004700 A GB2004700 A GB 2004700A GB 7832415 A GB7832415 A GB 7832415A GB 7832415 A GB7832415 A GB 7832415A GB 2004700 A GB2004700 A GB 2004700A
Authority
GB
United Kingdom
Prior art keywords
circuit breaker
trip bar
breaker trip
overload
bimetal strip
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
GB7832415A
Other versions
GB2004700B (en
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.)
Dorman Smith Switchgear Ltd
Original Assignee
Dorman Smith Switchgear 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 Dorman Smith Switchgear Ltd filed Critical Dorman Smith Switchgear Ltd
Priority to GB7832415A priority Critical patent/GB2004700B/en
Publication of GB2004700A publication Critical patent/GB2004700A/en
Application granted granted Critical
Publication of GB2004700B publication Critical patent/GB2004700B/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
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H01H71/7418—Adjusting both electrothermal and electromagnetic mechanism

Landscapes

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

Abstract

In an electric circuit breaker having a trip bar 51 which is pivoted by a bimetal strip 16 or an electromatic tripping member upon overload or short-circuit, the overload rating of the breaker can be varied by displacement of the trip bar 51 in an axial direction to alter the spacing between an inclined abutment surface 56 on the trip bar 51 and a calibration screw 17 carried by the bimetal strip 16. <IMAGE>
GB7832415A 1977-09-17 1978-08-07 Electric circuit breakers Expired GB2004700B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7832415A GB2004700B (en) 1977-09-17 1978-08-07 Electric circuit breakers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3885477 1977-09-17
GB7832415A GB2004700B (en) 1977-09-17 1978-08-07 Electric circuit breakers

Publications (2)

Publication Number Publication Date
GB2004700A true GB2004700A (en) 1979-04-04
GB2004700B GB2004700B (en) 1982-02-17

Family

ID=26263936

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7832415A Expired GB2004700B (en) 1977-09-17 1978-08-07 Electric circuit breakers

Country Status (1)

Country Link
GB (1) GB2004700B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0923102A2 (en) * 1997-12-10 1999-06-16 Siemens Energy & Automation, Inc. Intermediate latch for a molded case circuit breaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0923102A2 (en) * 1997-12-10 1999-06-16 Siemens Energy & Automation, Inc. Intermediate latch for a molded case circuit breaker
EP0923102A3 (en) * 1997-12-10 2000-10-04 Siemens Energy & Automation, Inc. Intermediate latch for a molded case circuit breaker

Also Published As

Publication number Publication date
GB2004700B (en) 1982-02-17

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Legal Events

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