GB1272649A - Circuit breaker - Google Patents
Circuit breakerInfo
- Publication number
- GB1272649A GB1272649A GB46149/69A GB4614969A GB1272649A GB 1272649 A GB1272649 A GB 1272649A GB 46149/69 A GB46149/69 A GB 46149/69A GB 4614969 A GB4614969 A GB 4614969A GB 1272649 A GB1272649 A GB 1272649A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- members
- automatic
- circuit
- force
- 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
- 235000010724 Wisteria floribunda Nutrition 0.000 abstract 1
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
- H01H77/102—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 characterised by special mounting of contact arm, allowing blow-off movement
- H01H77/105—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 characterised by special mounting of contact arm, allowing blow-off movement whereby the blow-off movement unlatches the contact from a contact holder
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
1,272,649. Automatic circuit-breakers. FUJI DENKI SEIZO K.K. 18 Sept., 1969, No. 46149/69. Heading H1N. An automatic, circuit-breaker has contactcarrying members 1, 3 arranged so that the current flowing through the members 1, 3 provides a force of repulsion between them, the member 1 being latched to a lever 5 by interengaging means 10, 13 at a position nearer the contacts 2, 4 than that at which the resultant force acts so that the force increases the contact pressure until it displaces the member 1 sufficiently to release the member 1 for opening movement relative to the lever 5. This lever is pivoted at 6 and is operated by conventional over-centre tension-spring snap-action mechanism which is tripped open by conventional overcurrent tripping devices to relatch the means 10, 13.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US858768A US3562680A (en) | 1969-09-17 | 1969-09-17 | Circuit breaker |
GB46149/69A GB1272649A (en) | 1969-09-17 | 1969-09-18 | Circuit breaker |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US85876869A | 1969-09-17 | 1969-09-17 | |
GB46149/69A GB1272649A (en) | 1969-09-17 | 1969-09-18 | Circuit breaker |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1272649A true GB1272649A (en) | 1972-05-03 |
Family
ID=26265750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB46149/69A Expired GB1272649A (en) | 1969-09-17 | 1969-09-18 | Circuit breaker |
Country Status (2)
Country | Link |
---|---|
US (1) | US3562680A (en) |
GB (1) | GB1272649A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3663903A (en) * | 1971-05-20 | 1972-05-16 | Ite Imperial Corp | Tripping system for circuit breaker |
JPS5942935B2 (en) * | 1978-07-05 | 1984-10-18 | 富士電機株式会社 | circuit breaker |
US4255732A (en) * | 1978-10-16 | 1981-03-10 | Westinghouse Electric Corp. | Current limiting circuit breaker |
US4346357A (en) * | 1979-12-17 | 1982-08-24 | Gould Inc. | Current-limiting circuit breaker adapter |
DE3133285C2 (en) * | 1981-08-22 | 1984-05-30 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Auto switch |
JPH01265423A (en) * | 1988-04-18 | 1989-10-23 | Fuji Electric Co Ltd | Circuit breaker |
US5361051A (en) * | 1988-12-16 | 1994-11-01 | Siemens Energy & Automation, Inc. | Pivoting circuit breaker contact arm assembly |
-
1969
- 1969-09-17 US US858768A patent/US3562680A/en not_active Expired - Lifetime
- 1969-09-18 GB GB46149/69A patent/GB1272649A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3562680A (en) | 1971-02-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |