GB893282A - Improvements in or relating to trip devices for automatic electric circuit breakers - Google Patents
Improvements in or relating to trip devices for automatic electric circuit breakersInfo
- Publication number
- GB893282A GB893282A GB31479/58A GB3147958A GB893282A GB 893282 A GB893282 A GB 893282A GB 31479/58 A GB31479/58 A GB 31479/58A GB 3147958 A GB3147958 A GB 3147958A GB 893282 A GB893282 A GB 893282A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- electric circuit
- circuit breakers
- automatic electric
- bimetal
- 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
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
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/501—Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker
-
- 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
- H01H71/1009—Interconnected mechanisms
- H01H71/1027—Interconnected mechanisms comprising a bidirectional connecting member actuated by the opening movement of one pole to trip a neighbour pole
-
- 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
- H01H71/162—Electrothermal mechanisms with bimetal element with compensation for ambient temperature
-
- 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
- H01H71/40—Combined electrothermal and electromagnetic mechanisms
-
- 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
- H01H71/40—Combined electrothermal and electromagnetic mechanisms
- H01H71/405—Combined electrothermal and electromagnetic mechanisms in which a bimetal forms the inductor for the electromagnetic mechanism
-
- 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
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
- H01H71/522—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism
- H01H71/524—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism the contact arm being pivoted on handle and mechanism spring acting between cradle and contact arm
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
- Thermally Actuated Switches (AREA)
Abstract
893,282. Automatic circuit - breakers. SQUARE D. CO. Oct. 2, 1958 [June 24, 1958], No. 31479/58. Class 38 (5). The manually-operable automatic circuitbreaker disclosed in Specification 788,044, and having a bimetal strip latch and a magnetic trip is modified by providing a further connector in series with the bimetal in order to increase the ampere turns of the magnetic circuit. The bimetal 34 has connector 45 arranged around the magnetic yoke 44 carrying the armature 53. Specification 827,740 also is referred to.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US509135A US2902560A (en) | 1955-05-18 | 1955-05-18 | Circuit breaker |
US514222A US3098136A (en) | 1955-06-09 | 1955-06-09 | Circuit breaker |
US893282XA | 1958-06-24 | 1958-06-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB893282A true GB893282A (en) | 1962-04-04 |
Family
ID=31982228
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7597/56A Expired GB827733A (en) | 1955-05-18 | 1956-03-12 | Improvements in or relating to automatic electric circuit breakers |
GB15702/56A Expired GB827740A (en) | 1955-05-18 | 1956-05-22 | Electric overload circuit breaker |
GB16525/56A Expired GB788044A (en) | 1955-05-18 | 1956-05-29 | Automatic electric circuit breaker |
GB31479/58A Expired GB893282A (en) | 1955-05-18 | 1958-10-02 | Improvements in or relating to trip devices for automatic electric circuit breakers |
Family Applications Before (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7597/56A Expired GB827733A (en) | 1955-05-18 | 1956-03-12 | Improvements in or relating to automatic electric circuit breakers |
GB15702/56A Expired GB827740A (en) | 1955-05-18 | 1956-05-22 | Electric overload circuit breaker |
GB16525/56A Expired GB788044A (en) | 1955-05-18 | 1956-05-29 | Automatic electric circuit breaker |
Country Status (2)
Country | Link |
---|---|
US (1) | US2902560A (en) |
GB (4) | GB827733A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3278707A (en) * | 1964-10-22 | 1966-10-11 | Gen Electric | Circuit breaker with ambient-temperature compensating means |
FR2712731A1 (en) * | 1993-11-15 | 1995-05-24 | Gen Electric | Thermo-magnetic trip unit for circuit breaker in molded case and circuit breaker using such a unit. |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3061698A (en) * | 1955-05-18 | 1962-10-30 | Square D Co | Spring operated mechanism for electric circuit breakers |
US3178535A (en) * | 1957-04-12 | 1965-04-13 | Westinghouse Electric Corp | Automatic circuit breaker with improved bimetallic and electromagnetic trip device |
US3110786A (en) * | 1959-11-03 | 1963-11-12 | Westinghouse Electric Corp | Electromagnetic thermal current circuit breaker |
US3088008A (en) * | 1959-11-03 | 1963-04-30 | Westinghouse Electric Corp | Circuit breaker |
NL126952C (en) * | 1960-01-07 | |||
US3133999A (en) * | 1960-10-14 | 1964-05-19 | Square D Co | Electric circuit breaker having two operating mechanisms arranged in tandem relationship and having quickconnect plug-in type load terminals |
US3147353A (en) * | 1960-12-23 | 1964-09-01 | Ite Circuit Breaker Ltd | Contact weld breaking means |
US3156796A (en) * | 1961-07-31 | 1964-11-10 | Ite Circuit Breaker Ltd | High sensitivity thermomagnetic circuit breaker |
US3213327A (en) * | 1962-04-03 | 1965-10-19 | Fed Pacific Electric Co | Circuit breaker and panelboard |
GB1053654A (en) * | 1962-05-21 | |||
GB1031971A (en) * | 1964-03-13 | 1966-06-02 | Square D Co | Improvements in or relating to electric circuit breakers |
US3287522A (en) * | 1965-06-28 | 1966-11-22 | Gen Electric | Circuit breaker with spring-biased toggle link |
US3466578A (en) * | 1967-06-26 | 1969-09-09 | Ite Imperial Corp | Circuit breaker contact separation initiator |
US3488610A (en) * | 1967-09-21 | 1970-01-06 | Gen Electric | Circuit breaker with improved thermalmagnetic tripping mechanism |
US3464040A (en) * | 1967-09-21 | 1969-08-26 | Gen Electric | Compact circuit breaker construction |
US3743981A (en) * | 1972-09-13 | 1973-07-03 | Ceb Ltd | Circuit breaker |
US3860898A (en) * | 1973-09-11 | 1975-01-14 | Westinghouse Electric Corp | Circuit breaker for distribution transformer |
US3832663A (en) * | 1973-11-28 | 1974-08-27 | Westinghouse Electric Corp | Circuit breaker with improved frame and cradle support means |
US3950715A (en) * | 1974-10-29 | 1976-04-13 | Fuchs Electrical Industries | Circuit breaker with improved trip means |
US4479101A (en) * | 1982-07-02 | 1984-10-23 | Siemens-Allis, Inc. | Circuit breaker with self-adjusting armature |
US4616199A (en) * | 1984-12-21 | 1986-10-07 | Square D Company | Circuit breaker improvement to prevent setting of trip assembly |
US4868529A (en) * | 1988-08-24 | 1989-09-19 | Siemens Energy & Automation, Inc. | Circuit breaker armature latch with control leg |
US5173674A (en) * | 1992-02-25 | 1992-12-22 | General Electric Company | Thermal-magnetic trip unit with low current response |
US5250918A (en) * | 1992-05-05 | 1993-10-05 | Square D Company | Automatic miniature circuit breaker with Z-axis assemblage current response mechanism |
JPH05342967A (en) * | 1992-06-04 | 1993-12-24 | Mitsubishi Electric Corp | Circuit breaker |
IE80609B1 (en) * | 1994-01-21 | 1998-10-21 | Square D Co | Improvements in and relating to circuit breakers |
US5471184A (en) * | 1994-07-13 | 1995-11-28 | Eaton Corporation | Circuit breaker |
US6617963B1 (en) | 1999-02-26 | 2003-09-09 | Sri International | Event-recording devices with identification codes |
US6806808B1 (en) | 1999-02-26 | 2004-10-19 | Sri International | Wireless event-recording device with identification codes |
US7034660B2 (en) * | 1999-02-26 | 2006-04-25 | Sri International | Sensor devices for structural health monitoring |
US6801111B2 (en) * | 2002-08-21 | 2004-10-05 | Square D Company | Latch for an electrical device |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2329362A (en) * | 1934-04-14 | 1943-09-14 | Westinghouse Electric & Mfg Co | Circuit breaker |
US2102545A (en) * | 1936-05-09 | 1937-12-14 | Trumbull Electric Mfg Co | Electric switch |
US2209351A (en) * | 1937-07-06 | 1940-07-30 | Colt S Mfg Co | Automatic circuit breaker |
US2210262A (en) * | 1939-02-27 | 1940-08-06 | Colt S Mfg Co | Automatic circuit breaker |
US2318085A (en) * | 1940-09-19 | 1943-05-04 | Westinghouse Electric & Mfg Co | Circuit breaker |
US2449486A (en) * | 1945-03-15 | 1948-09-14 | Westinghouse Electric Corp | Circuit breaker |
US2656432A (en) * | 1945-05-07 | 1953-10-20 | Westinghouse Electric Corp | Circuit breaker |
US2624816A (en) * | 1945-05-09 | 1953-01-06 | Westinghouse Electric Corp | Circuit breaker |
US2627563A (en) * | 1950-08-16 | 1953-02-03 | Gen Electric | Electric circuit breaker |
US2661414A (en) * | 1951-03-09 | 1953-12-01 | Gen Electric | Electric circuit breaker |
US2666114A (en) * | 1951-03-24 | 1954-01-12 | Square D Co | Circuit breaker |
US2678359A (en) * | 1952-01-15 | 1954-05-11 | Ite Circuit Breaker Ltd | Trip mechanism of circuit breakers |
US2677025A (en) * | 1952-05-02 | 1954-04-27 | Westinghouse Electric Corp | Circuit breaker |
US2701284A (en) * | 1953-05-28 | 1955-02-01 | Ite Circuit Breaker Ltd | Latch insulation for quick break circuit breakers |
US2716679A (en) * | 1954-05-11 | 1955-08-30 | Wadsworth Electric Mfg Co | Circuit breaker |
US2797278A (en) * | 1954-10-29 | 1957-06-25 | Westinghouse Electric Corp | Circuit breaker |
-
1955
- 1955-05-18 US US509135A patent/US2902560A/en not_active Expired - Lifetime
-
1956
- 1956-03-12 GB GB7597/56A patent/GB827733A/en not_active Expired
- 1956-05-22 GB GB15702/56A patent/GB827740A/en not_active Expired
- 1956-05-29 GB GB16525/56A patent/GB788044A/en not_active Expired
-
1958
- 1958-10-02 GB GB31479/58A patent/GB893282A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3278707A (en) * | 1964-10-22 | 1966-10-11 | Gen Electric | Circuit breaker with ambient-temperature compensating means |
FR2712731A1 (en) * | 1993-11-15 | 1995-05-24 | Gen Electric | Thermo-magnetic trip unit for circuit breaker in molded case and circuit breaker using such a unit. |
Also Published As
Publication number | Publication date |
---|---|
GB827733A (en) | 1960-02-10 |
US2902560A (en) | 1959-09-01 |
GB788044A (en) | 1957-12-18 |
GB827740A (en) | 1960-02-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB893282A (en) | Improvements in or relating to trip devices for automatic electric circuit breakers | |
ES422449A1 (en) | Circuit interrupter including improved trip circuit using current transformers | |
GB611817A (en) | Improvements in or relating to trip means for electric circuit breakers | |
ES417370A1 (en) | Circuit breaker system | |
ES466743A1 (en) | Protective relay circuit for interphase faults | |
GB869351A (en) | Selective trip arrangement utilizing circuit breakers which are coordinated with current limiting fuses | |
GB1525157A (en) | Multi-pole excess current circuit breaker | |
GB894912A (en) | Improvements in two pole electric circuit breakers | |
GB1090456A (en) | Miniature electric circuit-breakers | |
GB911844A (en) | Improvements in or relating to electrical circuit breakers | |
ES441080A1 (en) | Circuit breaker with improved trip means | |
GB1137325A (en) | Improvements in electrical circuit breakers | |
GB838399A (en) | Improvements in and relating to electric circuit breakers | |
GB1179698A (en) | Earth Leakage Circuit Breaker | |
GB1459298A (en) | Electric circuit breakers | |
GB1517307A (en) | Automatic circuit breaker | |
GB964037A (en) | Improvements in or relating to earth fault protective switches | |
GB920156A (en) | Improvements in or relating to an electric circuit breaker arrangement | |
GB905641A (en) | Improvements in electric circuit breakers | |
GB713789A (en) | Electric circuit breakers having arc-quenching means | |
GB1008874A (en) | Electric circuit-breakers | |
GB785966A (en) | Improvements in or relating to electric circuit breakers | |
GB398797A (en) | Overload cut-out switch or circuit breakers with one pair of magnets | |
CA517444A (en) | Undervoltage trip circuit breaker | |
GB775863A (en) | Improvements in electrical circuit breakers with automatic reclosing mechanism |