GB199526A - Improvements in automatic circuit breakers - Google Patents

Improvements in automatic circuit breakers

Info

Publication number
GB199526A
GB199526A GB994722A GB994722A GB199526A GB 199526 A GB199526 A GB 199526A GB 994722 A GB994722 A GB 994722A GB 994722 A GB994722 A GB 994722A GB 199526 A GB199526 A GB 199526A
Authority
GB
United Kingdom
Prior art keywords
breaker
failure
operate
electrically
air gap
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
GB994722A
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.)
Crompton & Co Ltd
Original Assignee
Crompton & Co 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 Crompton & Co Ltd filed Critical Crompton & Co Ltd
Priority to GB994722A priority Critical patent/GB199526A/en
Publication of GB199526A publication Critical patent/GB199526A/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

Abstract

199,526. Crompton & Co., Ltd., and Jones, W. F. April 7, 1922. Electrically - t r i p p e d switches; electromagnetic actuation. - Relates to tripping devices for automatic circuit-breakers opened either by excess current or by lowering or failure of the supply voltage. The device may operate the breaker either mechanically or electrically by closing another switch and may also be either fitted on the breaker or at a distance from it and to a connection thereof. Figs. 1 and 2 show its application to a current-carrying stub B of a switch frame A, wherein D is a fixed part of an iron or steel split sleeve having a movable, part E pivoted to it at F so as to leave a small air gap. On overload, the movable part E is moved to close the air gap operating the breaker through the rod K. In a no-volt arrangement, the sleeve would be held closed, but on failure of the supply pressure would be separated to operate the breaker. Spring means are provided to restore the gear and to prevent gradual closure by vibration due to alternating currents and other causes.
GB994722A 1922-04-07 1922-04-07 Improvements in automatic circuit breakers Expired GB199526A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB994722A GB199526A (en) 1922-04-07 1922-04-07 Improvements in automatic circuit breakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB994722A GB199526A (en) 1922-04-07 1922-04-07 Improvements in automatic circuit breakers

Publications (1)

Publication Number Publication Date
GB199526A true GB199526A (en) 1923-06-28

Family

ID=9881710

Family Applications (1)

Application Number Title Priority Date Filing Date
GB994722A Expired GB199526A (en) 1922-04-07 1922-04-07 Improvements in automatic circuit breakers

Country Status (1)

Country Link
GB (1) GB199526A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458151A (en) * 1941-06-24 1949-01-04 Westinghouse Electric Corp Circuit breaker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458151A (en) * 1941-06-24 1949-01-04 Westinghouse Electric Corp Circuit breaker

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