ES8608226A1 - Circuit breaker with improved cross-bar and contact assembly. - Google Patents
Circuit breaker with improved cross-bar and contact assembly.Info
- Publication number
- ES8608226A1 ES8608226A1 ES538702A ES538702A ES8608226A1 ES 8608226 A1 ES8608226 A1 ES 8608226A1 ES 538702 A ES538702 A ES 538702A ES 538702 A ES538702 A ES 538702A ES 8608226 A1 ES8608226 A1 ES 8608226A1
- Authority
- ES
- Spain
- Prior art keywords
- contact
- bar
- cross
- circuit breaker
- end portion
- 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
- 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
- H01H77/104—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 with a stable blow-off position
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
- H01H1/5833—Electric connections to or between contacts; Terminals comprising an articulating, sliding or rolling contact between movable contact and terminal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
- H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
- H01H2001/223—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member using a torsion spring
-
- 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
Abstract
The invention relates to an electric circuit breaker having improved operating means with current-limiting capability. The operating means include an insulating cross-bar (84) pivotally supporting one contact (52) of each contact pair and having, at each pivotal connection (110) with a contact, a portion (270) defining a pocket (282) into which extends an end portion (284) of the associated contact, and in which are disposed restraining means (286, 288) cooperating with said end portion in such manner as to normally constrain the contact (52) to move together and in unison with the cross-bar (84), and to permit the contact to open independently of the cross-bar under the action of electrodynamic forces resulting from a high-level fault current flowing through the contacts. The cross-bar assembly is compact, requiring relatively little space, and at the same time provides reliable and fast contact operation.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/562,648 US4539538A (en) | 1983-12-19 | 1983-12-19 | Molded case circuit breaker with movable upper electrical contact positioned by tension springs |
US06/562,647 US4540961A (en) | 1983-12-19 | 1983-12-19 | Molded case circuit breaker with an apertured molded cross bar for supporting a movable electrical contact arm |
Publications (2)
Publication Number | Publication Date |
---|---|
ES538702A0 ES538702A0 (en) | 1986-06-01 |
ES8608226A1 true ES8608226A1 (en) | 1986-06-01 |
Family
ID=27073014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES538702A Expired ES8608226A1 (en) | 1983-12-19 | 1984-12-17 | Circuit breaker with improved cross-bar and contact assembly. |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0145990B1 (en) |
JP (1) | JP2610806B2 (en) |
KR (1) | KR930001001B1 (en) |
AU (1) | AU573286B2 (en) |
BR (1) | BR8406553A (en) |
DE (1) | DE3482075D1 (en) |
ES (1) | ES8608226A1 (en) |
IE (1) | IE56136B1 (en) |
IN (1) | IN160719B (en) |
MX (1) | MX156833A (en) |
NZ (1) | NZ210256A (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4635011A (en) * | 1985-05-01 | 1987-01-06 | Westinghouse Electric Corp. | Circuit breaker with arm latch for high interrupting capacity |
US4644121A (en) * | 1985-06-05 | 1987-02-17 | Westinghouse Electric Corp. | Circuit breaker contact arm with variable force pivot |
US4642431A (en) * | 1985-07-18 | 1987-02-10 | Westinghouse Electric Corp. | Molded case circuit breaker with a movable electrical contact positioned by a camming spring loaded clip |
US4644120A (en) * | 1985-07-18 | 1987-02-17 | Westinghouse Electric Corp. | Molded case circuit breaker with a movable lower electrical contact positioned by a torsion spring |
JPS6265756U (en) * | 1985-10-14 | 1987-04-23 | ||
FR2589627B1 (en) * | 1985-10-31 | 1988-08-26 | Merlin Gerin | CONTROL MECHANISM FOR LOW VOLTAGE ELECTRIC CIRCUIT BREAKER |
DE3614866A1 (en) * | 1986-05-02 | 1987-11-05 | Licentia Gmbh | CONTACT FOR LOW CURRENT CIRCUIT BREAKERS |
JPS62191047U (en) * | 1986-05-23 | 1987-12-04 | ||
CA1310046C (en) * | 1986-10-24 | 1992-11-10 | John M. Winter | Circuit breaker contact assembly |
DE3708807A1 (en) * | 1987-03-18 | 1988-10-06 | Licentia Gmbh | ELECTRICAL CIRCUIT BREAKER WITH AN ELECTRO-DYNAMIC OPENING CONTACT SYSTEM |
US4862125A (en) * | 1988-09-08 | 1989-08-29 | Westinghouse Electric Corp. | Electrical switching device with cover interlock |
BR8904916A (en) * | 1989-09-28 | 1991-04-02 | Wagner Waneck Martins | COMMAND AND PROTECTION DEVICES BY QUANTIFIED ENERGETIC PULSE TECHNIQUE |
JP2719436B2 (en) * | 1990-08-14 | 1998-02-25 | 松下電工株式会社 | Undervoltage trip device for breaker |
US5994988A (en) * | 1997-09-23 | 1999-11-30 | Siemens Energy & Automation, Inc. | Movable contact structure for a circuit breaker, including crossbar and spring biased cam mechanism |
US5973280A (en) * | 1998-03-23 | 1999-10-26 | Eaton Corporation | Circuit breaker with an anti-lift pivot handle |
US9000316B2 (en) * | 2013-03-08 | 2015-04-07 | Eaton Corporation | Electrical switching apparatus and link assembly therefor |
CN113192789B (en) * | 2021-03-24 | 2023-05-12 | 天津平高智能电气有限公司 | Column isolating switch and wiring terminal thereof |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3192344A (en) * | 1961-08-28 | 1965-06-29 | Fed Pacific Electric Co | High interrupting capacity circuit breakers with electrodynamic latch release |
US4087769A (en) * | 1976-04-28 | 1978-05-02 | I-T-E Imperial Corporation | Torsion spring for contact pressure |
BE867767A (en) * | 1977-04-14 | 1978-10-02 | Ave Belli Andrea | HIGH SENSITIVITY DIFFERENTIAL SWITCH |
GB1564412A (en) * | 1977-09-15 | 1980-04-10 | Dorman Smith Switchgear Ltd | Electric circuit breakers |
GB2004698B (en) * | 1977-09-17 | 1982-02-17 | Dorman Smith Switchgear Ltd | Electric circuit breakers |
FR2506066A1 (en) * | 1981-05-18 | 1982-11-19 | Merlin Gerin | MANEUVERING MECHANISM OF A LOW VOLTAGE MULTIPOLAR ELECTRIC CIRCUIT BREAKER |
JPS58192234A (en) * | 1982-04-30 | 1983-11-09 | 松下電工株式会社 | Electromagnetically repelling contactor unit |
US4567455A (en) * | 1983-04-28 | 1986-01-28 | Mitsubishi Denki K.K. | Circuit interrupter |
-
1984
- 1984-11-16 IE IE2944/84A patent/IE56136B1/en not_active IP Right Cessation
- 1984-11-20 EP EP84113997A patent/EP0145990B1/en not_active Expired - Lifetime
- 1984-11-20 NZ NZ210256A patent/NZ210256A/en unknown
- 1984-11-20 DE DE8484113997T patent/DE3482075D1/en not_active Expired - Lifetime
- 1984-11-22 AU AU35779/84A patent/AU573286B2/en not_active Expired
- 1984-11-27 IN IN811/CAL/84A patent/IN160719B/en unknown
- 1984-12-13 MX MX203704A patent/MX156833A/en unknown
- 1984-12-14 BR BR8406553A patent/BR8406553A/en not_active IP Right Cessation
- 1984-12-17 ES ES538702A patent/ES8608226A1/en not_active Expired
- 1984-12-17 JP JP59267286A patent/JP2610806B2/en not_active Expired - Lifetime
- 1984-12-19 KR KR1019840008126A patent/KR930001001B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
IE842944L (en) | 1985-06-19 |
EP0145990A3 (en) | 1986-02-19 |
KR850004874A (en) | 1985-07-27 |
BR8406553A (en) | 1985-10-15 |
ES538702A0 (en) | 1986-06-01 |
EP0145990A2 (en) | 1985-06-26 |
IE56136B1 (en) | 1991-04-24 |
NZ210256A (en) | 1988-06-30 |
EP0145990B1 (en) | 1990-04-25 |
JPS60151924A (en) | 1985-08-10 |
AU573286B2 (en) | 1988-06-02 |
AU3577984A (en) | 1985-06-27 |
IN160719B (en) | 1987-08-01 |
DE3482075D1 (en) | 1990-05-31 |
KR930001001B1 (en) | 1993-02-12 |
MX156833A (en) | 1988-10-05 |
JP2610806B2 (en) | 1997-05-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 20041129 |