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GB2228829B - Improvements relating to circuit breakers - Google Patents

Improvements relating to circuit breakers

Info

Publication number
GB2228829B
GB2228829B GB8903974A GB8903974A GB2228829B GB 2228829 B GB2228829 B GB 2228829B GB 8903974 A GB8903974 A GB 8903974A GB 8903974 A GB8903974 A GB 8903974A GB 2228829 B GB2228829 B GB 2228829B
Authority
GB
United Kingdom
Prior art keywords
circuit breakers
improvements relating
relating
breakers
circuit
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 - Lifetime
Application number
GB8903974A
Other versions
GB8903974D0 (en
GB2228829A (en
Inventor
Peter William Bowen
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.)
Crabtree Electrical Industries Ltd
Original Assignee
Crabtree Electrical Industries 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 Crabtree Electrical Industries Ltd filed Critical Crabtree Electrical Industries Ltd
Priority to GB8903974A priority Critical patent/GB2228829B/en
Publication of GB8903974D0 publication Critical patent/GB8903974D0/en
Publication of GB2228829A publication Critical patent/GB2228829A/en
Application granted granted Critical
Publication of GB2228829B publication Critical patent/GB2228829B/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
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • 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
    • H01H71/7427—Adjusting only the electrothermal mechanism
    • H01H71/7436—Adjusting the position (or prestrain) of the bimetal
GB8903974A 1989-02-22 1989-02-22 Improvements relating to circuit breakers Expired - Lifetime GB2228829B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8903974A GB2228829B (en) 1989-02-22 1989-02-22 Improvements relating to circuit breakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8903974A GB2228829B (en) 1989-02-22 1989-02-22 Improvements relating to circuit breakers

Publications (3)

Publication Number Publication Date
GB8903974D0 GB8903974D0 (en) 1989-04-05
GB2228829A GB2228829A (en) 1990-09-05
GB2228829B true GB2228829B (en) 1992-11-25

Family

ID=10652085

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8903974A Expired - Lifetime GB2228829B (en) 1989-02-22 1989-02-22 Improvements relating to circuit breakers

Country Status (1)

Country Link
GB (1) GB2228829B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2753835B1 (en) * 1996-09-23 1998-10-30 THERMAL TRIGGERING DEVICE FOR PROTECTIVE APPARATUS
DE19750875C1 (en) * 1997-11-18 1999-03-18 Hans Arnhold Overcurrent release for protection switch
US6104273A (en) * 1999-06-09 2000-08-15 General Electric Company Calibration assembly and process for use in a circuit protective device
US6515569B2 (en) * 2000-12-18 2003-02-04 Eaton Corporation Circuit breaker with bypass conductor commutating current out of the bimetal during short circuit interruption and method of commutating current out of bimetal
CN103903921B (en) 2012-12-28 2016-08-17 施耐德电器工业公司 Overload protection arrangement and include the thermomagnetic adjustable release device of breaker of this device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB421796A (en) * 1933-03-23 1934-12-31 Westinghouse Electric & Mfg Co Improvements in or relating to thermally-responsive devices for use in electrical apparatus
GB1008874A (en) * 1962-04-10 1965-11-03 Midland Electric Mfg Co Ltd Electric circuit-breakers
GB1013293A (en) * 1961-01-05 1965-12-15 Rowan Controller Company Improvements in or relating to electric circuit breakers
GB1477948A (en) * 1974-10-09 1977-06-29 Ellenberger & Poensgen Directly heatable bimetallic strip for use in a thermal trip device
GB2036436A (en) * 1978-10-26 1980-06-25 Sprecher & Schuh Ag Bimetallic Thermo-actuator for Overload Switches
US4415875A (en) * 1982-05-18 1983-11-15 Mechanical Products, Inc. Circuit breaker

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB421796A (en) * 1933-03-23 1934-12-31 Westinghouse Electric & Mfg Co Improvements in or relating to thermally-responsive devices for use in electrical apparatus
GB1013293A (en) * 1961-01-05 1965-12-15 Rowan Controller Company Improvements in or relating to electric circuit breakers
GB1008874A (en) * 1962-04-10 1965-11-03 Midland Electric Mfg Co Ltd Electric circuit-breakers
GB1477948A (en) * 1974-10-09 1977-06-29 Ellenberger & Poensgen Directly heatable bimetallic strip for use in a thermal trip device
GB2036436A (en) * 1978-10-26 1980-06-25 Sprecher & Schuh Ag Bimetallic Thermo-actuator for Overload Switches
US4415875A (en) * 1982-05-18 1983-11-15 Mechanical Products, Inc. Circuit breaker

Also Published As

Publication number Publication date
GB8903974D0 (en) 1989-04-05
GB2228829A (en) 1990-09-05

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Expiry date: 20090221