GB877809A - Improvements in electric circuit breakers - Google Patents
Improvements in electric circuit breakersInfo
- Publication number
- GB877809A GB877809A GB33759/57A GB3375957A GB877809A GB 877809 A GB877809 A GB 877809A GB 33759/57 A GB33759/57 A GB 33759/57A GB 3375957 A GB3375957 A GB 3375957A GB 877809 A GB877809 A GB 877809A
- Authority
- GB
- United Kingdom
- Prior art keywords
- barriers
- breaker
- channels
- contacts
- gases
- 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
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/10—Adaptation for built-in fuses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0072—Details of switching devices, not covered by groups H01H1/00 - H01H7/00 particular to three-phase switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/342—Venting arrangements for arc chutes
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Breakers (AREA)
Abstract
877,809. Arc-preventing in switches. I-T-E CIRCUIT BREAKER CO. Oct. 29, 1957 [Nov. 19, 1956], No. 33759/57. Class 38 (5). In a multi-phase circuit-breaker having a moulded case 20, 22 with channels in which the contacts are located, barriers 64, 66 are provided for restricting the circulation of ionized gases between the contacts of different phases through openings in the walls 44, 52 of the channels, so as to prevent flashover between the phases. In the arrangement shown, the outer channels of a three-phase circuit-breaker have barriers to restrict the flow of ionized gases through apertures 62 in the channel walls, the apertures permitting the use of a common operating shaft 60. Slots 74 at the top of the barriers and holes 72 in the barriers permit some leakage of gases so as to avoid the production of excessive pressures. Specifications 783,366 and 869,424 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US622952A US2863969A (en) | 1956-11-19 | 1956-11-19 | Barriers for isolation of circuit breaker phases |
Publications (1)
Publication Number | Publication Date |
---|---|
GB877809A true GB877809A (en) | 1961-09-20 |
Family
ID=24496175
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB33759/57A Expired GB877809A (en) | 1956-11-19 | 1957-10-29 | Improvements in electric circuit breakers |
Country Status (2)
Country | Link |
---|---|
US (1) | US2863969A (en) |
GB (1) | GB877809A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2285889A (en) * | 1994-01-21 | 1995-07-26 | Square D Co | Circuit breaker |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3009038A (en) * | 1956-12-24 | 1961-11-14 | Westinghouse Electric Corp | Circuit interrupter |
US2939936A (en) * | 1957-10-01 | 1960-06-07 | Ite Circuit Breaker Ltd | Separate housing for coordinated circuit breaker current limiting device |
US3015709A (en) * | 1959-04-09 | 1962-01-02 | Ite Circuit Breaker Ltd | Cover lift pin |
US3073927A (en) * | 1959-10-16 | 1963-01-15 | Westinghouse Electric Corp | Circuit breakers |
US3096423A (en) * | 1960-02-24 | 1963-07-02 | Ite Circuit Breaker Ltd | Unitary multi-phase terminal support |
US3240902A (en) * | 1960-08-25 | 1966-03-15 | Westinghouse Electric Corp | Circuit interrupting units with handletie structure |
US3211960A (en) * | 1960-12-07 | 1965-10-12 | Westinghouse Electric Corp | Insulating mounting block and circuit interrupting device |
US3221117A (en) * | 1963-09-09 | 1965-11-30 | Mallory & Co Inc P R | Adjustable cam time sequence control |
US3394329A (en) * | 1966-11-25 | 1968-07-23 | Gen Electric | Current-limiting electric circuit breaker |
US3474206A (en) * | 1968-04-25 | 1969-10-21 | Ite Imperial Corp | Circuit breaker mounting and removal jack screw combination |
US3632927A (en) * | 1970-10-02 | 1972-01-04 | Square D Co | Electric switch and switch enclosure for motor branch circuits |
US3919514A (en) * | 1974-05-13 | 1975-11-11 | Ite Imperial Corp | Retaining means for circuit breaker handle |
DE7801710U1 (en) * | 1978-01-19 | 1982-09-09 | Siemens AG, 1000 Berlin und 8000 München | Low-voltage circuit breaker with an insulating housing divided by partitions |
US4581511A (en) * | 1984-09-28 | 1986-04-08 | Westinghouse Electric Corp. | Molded case circuit breaker with an improved internal venting system |
US5457296A (en) * | 1992-07-17 | 1995-10-10 | Square D Company | Circuit breaker enclosure |
US5493092A (en) * | 1994-10-12 | 1996-02-20 | Eaton Corporation | Shield for a line side of a circuit breaker for supporting cable and deflecting ionized gases |
US5990439A (en) * | 1998-03-26 | 1999-11-23 | Siemens Energy & Automation, Inc. | Compartmentalized arc chamber |
US5945650A (en) * | 1998-04-02 | 1999-08-31 | Siemens Energy & Automation,Inc. | Polyphase rotary switch including arc chamber system with arc grids, line shields and baffles |
US5969308A (en) * | 1998-04-02 | 1999-10-19 | Siemens Energy & Automation, Inc. | Rotary switch including spring biased knife blade contacts |
AU6569500A (en) * | 1999-08-05 | 2001-03-05 | Klaus Bruchmann | Compact multipolar circuit protection assembly |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1918232A (en) * | 1932-07-26 | 1933-07-11 | Westinghouse Electric & Mfg Co | Circuit interrupter |
US2291466A (en) * | 1940-07-17 | 1942-07-28 | Gen Electric | Circuit breaker |
-
1956
- 1956-11-19 US US622952A patent/US2863969A/en not_active Expired - Lifetime
-
1957
- 1957-10-29 GB GB33759/57A patent/GB877809A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2285889A (en) * | 1994-01-21 | 1995-07-26 | Square D Co | Circuit breaker |
Also Published As
Publication number | Publication date |
---|---|
US2863969A (en) | 1958-12-09 |
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