GB165563A - Improvements in electric overload circuit breakers - Google Patents

Improvements in electric overload circuit breakers

Info

Publication number
GB165563A
GB165563A GB1023220A GB1023220A GB165563A GB 165563 A GB165563 A GB 165563A GB 1023220 A GB1023220 A GB 1023220A GB 1023220 A GB1023220 A GB 1023220A GB 165563 A GB165563 A GB 165563A
Authority
GB
United Kingdom
Prior art keywords
contact
coils
movable
circuit
fixed
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
GB1023220A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1023220A priority Critical patent/GB165563A/en
Priority to FR531309D priority patent/FR531309A/en
Publication of GB165563A publication Critical patent/GB165563A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
    • H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
    • H01H77/10—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Breakers (AREA)

Abstract

165,563. Bolton, R. A. R. April 13, 1920. Automatic circuitbreakers; sparking, preventing. - In a circuit-breaker, the interaction of the currents in the movable and fixed parts tends to separate them and to blow out the spark between the contacts, which are constructed as arcing horns. A single-break form is shown diagrammatically in Fig. 1 and a doublebreak in Fig. 3. A partial magnetic circuit of iron may be arranged outside and adjacent to the loop formed by the fixed and movable current carrying members to augment the blow-out action. In the circuit-breaker shown in Fig. 4, the fixed contact is constituted by the turned-up end b of a strap conductor, which is bent into one or more coils wound round a three-sided core k. The movable conductor, pivoted at o and bent at its contact end to form a contact horn, is normally retained in the closed position by a spring-controlled magnetic latch q which is withdrawn on overload by the core u magnetized by the current in arc of the conductors. When released the contact arm is moved to the off position by the reaction between the coils, and the arc is blown out at the horns by the field produced by the loop and by the coils.
GB1023220A 1920-04-13 1920-04-13 Improvements in electric overload circuit breakers Expired GB165563A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1023220A GB165563A (en) 1920-04-13 1920-04-13 Improvements in electric overload circuit breakers
FR531309D FR531309A (en) 1920-04-13 1921-02-24 Improvements in electrical circuit switches and similar devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1023220A GB165563A (en) 1920-04-13 1920-04-13 Improvements in electric overload circuit breakers

Publications (1)

Publication Number Publication Date
GB165563A true GB165563A (en) 1921-07-07

Family

ID=9964042

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1023220A Expired GB165563A (en) 1920-04-13 1920-04-13 Improvements in electric overload circuit breakers

Country Status (2)

Country Link
FR (1) FR531309A (en)
GB (1) GB165563A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2821595A (en) * 1954-01-08 1958-01-28 Ite Circuit Breaker Ltd Electromagnetic delatching means
DE1107330B (en) * 1958-08-13 1961-05-25 Calor Emag Elektrizitaets Ag Electrical switch for the automatic interruption of overcurrent and short-circuit currents
DE1116782B (en) * 1959-12-07 1961-11-09 Licentia Gmbh Circuit breaker
US3012118A (en) * 1958-10-29 1961-12-05 Ite Circuit Breaker Ltd Current limiting circuit breaker
DE1127452B (en) * 1960-02-16 1962-04-12 Elektro App Werke J W Stalin V Electrical overcurrent circuit breaker
DE1127453B (en) * 1960-03-24 1962-04-12 Elektro App Werke J W Stalin V Electrodynamic system for actuating the switching contacts of an electrical switch, in particular a circuit breaker
DE1128007B (en) * 1961-03-04 1962-04-19 Continental Elektro Ind Ag Circuit breaker
US3068379A (en) * 1957-04-11 1962-12-11 Fed Pacific Electric Co Circuit protective apparatus
US3127488A (en) * 1960-07-18 1964-03-31 Ite Circuit Breaker Ltd Current limiting circuit breaker having both contacts movable
US3164700A (en) * 1959-04-13 1965-01-05 Ite Circuit Breaker Ltd Current limiting circuit breaker with improved auxiliary toggle mechanism
US3522565A (en) * 1967-04-01 1970-08-04 Licentia Gmbh Quick acting circuit breaker
DE2360439A1 (en) * 1972-12-01 1974-06-06 Westinghouse Electric Corp INDEPENDENT SWITCHING DEVICE WITH SWITCHING PIECE MOVABLE BY ELECTRIC POWER

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4719438A (en) * 1986-09-30 1988-01-12 Westinghouse Electric Corp. Circuit breaker with fast trip unit

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2821595A (en) * 1954-01-08 1958-01-28 Ite Circuit Breaker Ltd Electromagnetic delatching means
US3068379A (en) * 1957-04-11 1962-12-11 Fed Pacific Electric Co Circuit protective apparatus
DE1107330B (en) * 1958-08-13 1961-05-25 Calor Emag Elektrizitaets Ag Electrical switch for the automatic interruption of overcurrent and short-circuit currents
US3012118A (en) * 1958-10-29 1961-12-05 Ite Circuit Breaker Ltd Current limiting circuit breaker
US3164700A (en) * 1959-04-13 1965-01-05 Ite Circuit Breaker Ltd Current limiting circuit breaker with improved auxiliary toggle mechanism
DE1116782B (en) * 1959-12-07 1961-11-09 Licentia Gmbh Circuit breaker
DE1127452B (en) * 1960-02-16 1962-04-12 Elektro App Werke J W Stalin V Electrical overcurrent circuit breaker
DE1127453B (en) * 1960-03-24 1962-04-12 Elektro App Werke J W Stalin V Electrodynamic system for actuating the switching contacts of an electrical switch, in particular a circuit breaker
US3127488A (en) * 1960-07-18 1964-03-31 Ite Circuit Breaker Ltd Current limiting circuit breaker having both contacts movable
DE1128007B (en) * 1961-03-04 1962-04-19 Continental Elektro Ind Ag Circuit breaker
US3522565A (en) * 1967-04-01 1970-08-04 Licentia Gmbh Quick acting circuit breaker
DE2360439A1 (en) * 1972-12-01 1974-06-06 Westinghouse Electric Corp INDEPENDENT SWITCHING DEVICE WITH SWITCHING PIECE MOVABLE BY ELECTRIC POWER
DE2360439B2 (en) 1972-12-01 1978-07-06 Westinghouse Electric Corp., Pittsburgh, Pa. (V.St.A.) Automatic switching device with contact piece that can be moved by current forces

Also Published As

Publication number Publication date
FR531309A (en) 1922-01-11

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