EP0145990A3 - Circuit breaker with improved cross-bar and contact assembly - Google Patents

Circuit breaker with improved cross-bar and contact assembly Download PDF

Info

Publication number
EP0145990A3
EP0145990A3 EP84113997A EP84113997A EP0145990A3 EP 0145990 A3 EP0145990 A3 EP 0145990A3 EP 84113997 A EP84113997 A EP 84113997A EP 84113997 A EP84113997 A EP 84113997A EP 0145990 A3 EP0145990 A3 EP 0145990A3
Authority
EP
European Patent Office
Prior art keywords
bar
circuit breaker
contact assembly
improved cross
improved
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.)
Granted
Application number
EP84113997A
Other versions
EP0145990A2 (en
EP0145990B1 (en
Inventor
Alfred E. Maier
Robert H. Flick
Walter K. Huffman
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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
Priority claimed from US06/562,648 external-priority patent/US4539538A/en
Priority claimed from US06/562,647 external-priority patent/US4540961A/en
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of EP0145990A2 publication Critical patent/EP0145990A2/en
Publication of EP0145990A3 publication Critical patent/EP0145990A3/en
Application granted granted Critical
Publication of EP0145990B1 publication Critical patent/EP0145990B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
EP84113997A 1983-12-19 1984-11-20 Circuit breaker with improved cross-bar and contact assembly Expired - Lifetime EP0145990B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US562648 1983-12-19
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
US562647 1983-12-19

Publications (3)

Publication Number Publication Date
EP0145990A2 EP0145990A2 (en) 1985-06-26
EP0145990A3 true EP0145990A3 (en) 1986-02-19
EP0145990B1 EP0145990B1 (en) 1990-04-25

Family

ID=27073014

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84113997A Expired - Lifetime EP0145990B1 (en) 1983-12-19 1984-11-20 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)

* Cited by examiner, † Cited by third party
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
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
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
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
WO1988003324A1 (en) * 1986-10-24 1988-05-05 Square D Company 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

Citations (5)

* Cited by examiner, † Cited by third party
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
GB2026244A (en) * 1977-04-14 1980-01-30 Belli A & Co A Di Circuit breaker tripping
GB1564412A (en) * 1977-09-15 1980-04-10 Dorman Smith Switchgear Ltd Electric circuit breakers
EP0066486A1 (en) * 1981-05-18 1982-12-08 Merlin Gerin Operating mechanism for a low-voltage multi-pole circuit breaker
EP0128676A2 (en) * 1983-04-28 1984-12-19 Mitsubishi Denki Kabushiki Kaisha Circuit interrupter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087769A (en) * 1976-04-28 1978-05-02 I-T-E Imperial Corporation Torsion spring for contact pressure
GB2004698B (en) * 1977-09-17 1982-02-17 Dorman Smith Switchgear Ltd Electric circuit breakers
JPS58192234A (en) * 1982-04-30 1983-11-09 松下電工株式会社 Electromagnetically repelling contactor unit

Patent Citations (5)

* Cited by examiner, † Cited by third party
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
GB2026244A (en) * 1977-04-14 1980-01-30 Belli A & Co A Di Circuit breaker tripping
GB1564412A (en) * 1977-09-15 1980-04-10 Dorman Smith Switchgear Ltd Electric circuit breakers
EP0066486A1 (en) * 1981-05-18 1982-12-08 Merlin Gerin Operating mechanism for a low-voltage multi-pole circuit breaker
EP0128676A2 (en) * 1983-04-28 1984-12-19 Mitsubishi Denki Kabushiki Kaisha Circuit interrupter

Also Published As

Publication number Publication date
DE3482075D1 (en) 1990-05-31
BR8406553A (en) 1985-10-15
IN160719B (en) 1987-08-01
AU573286B2 (en) 1988-06-02
EP0145990A2 (en) 1985-06-26
IE842944L (en) 1985-06-19
JP2610806B2 (en) 1997-05-14
MX156833A (en) 1988-10-05
ES8608226A1 (en) 1986-06-01
NZ210256A (en) 1988-06-30
KR930001001B1 (en) 1993-02-12
ES538702A0 (en) 1986-06-01
EP0145990B1 (en) 1990-04-25
JPS60151924A (en) 1985-08-10
IE56136B1 (en) 1991-04-24
KR850004874A (en) 1985-07-27
AU3577984A (en) 1985-06-27

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