EP0727805A3 - Contact lever unit for low voltage circuit breaker - Google Patents

Contact lever unit for low voltage circuit breaker Download PDF

Info

Publication number
EP0727805A3
EP0727805A3 EP96250034A EP96250034A EP0727805A3 EP 0727805 A3 EP0727805 A3 EP 0727805A3 EP 96250034 A EP96250034 A EP 96250034A EP 96250034 A EP96250034 A EP 96250034A EP 0727805 A3 EP0727805 A3 EP 0727805A3
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
contact lever
voltage circuit
low voltage
lever unit
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
EP96250034A
Other languages
German (de)
French (fr)
Other versions
EP0727805B1 (en
EP0727805A2 (en
Inventor
Türkmen Sezai
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.)
Siemens AG
Original Assignee
Siemens AG
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
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0727805A2 publication Critical patent/EP0727805A2/en
Publication of EP0727805A3 publication Critical patent/EP0727805A3/en
Application granted granted Critical
Publication of EP0727805B1 publication Critical patent/EP0727805B1/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
    • 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
    • H01H1/226—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 having a plurality of parallel contact bars
    • 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
    • H01H1/226—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 having a plurality of parallel contact bars
    • H01H2001/228—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 having a plurality of parallel contact bars with insulating spacers between the contact bars
    • 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
    • H01H2009/305—Means for extinguishing or preventing arc between current-carrying parts including means for screening for arc gases as protection of mechanism against hot arc gases or for keeping arc gases in the arc chamber
    • 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
    • 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
    • H01H9/40—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc

Abstract

Eine Kontakthebelbaugruppe (1) eines Niederspannungs-Leistungsschalters weist parallele Kontakthebel (3) auf, die an einem Träger (2) aus Isolierstoff schwenkbar gelagert sind. Ein gegenseitiger Abstand zwischen den Kontakthebeln wird durch einen Abstandshalter (6) aufrechterhalten, der als gesondertes Teil aus einem Kunststoff hergestellt ist, der geringe Materialdicken ermöglicht. Seitliche Wangen (10) des Abstandshalters (6) überdecken den Lagerbolzen (4) der Kontakthebel (3).

Figure 00000001
A contact lever assembly (1) of a low-voltage circuit breaker has parallel contact levers (3) which are pivotably mounted on a support (2) made of insulating material. A mutual distance between the contact levers is maintained by a spacer (6), which is made as a separate part from a plastic, which enables low material thicknesses. Lateral cheeks (10) of the spacer (6) cover the bearing pin (4) of the contact lever (3).
Figure 00000001
EP19960250034 1995-02-16 1996-02-09 Contact lever unit for low voltage circuit breaker Expired - Lifetime EP0727805B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29503327U 1995-02-16
DE29503327U DE29503327U1 (en) 1995-02-16 1995-02-16 Contact lever assembly for a low voltage circuit breaker

Publications (3)

Publication Number Publication Date
EP0727805A2 EP0727805A2 (en) 1996-08-21
EP0727805A3 true EP0727805A3 (en) 1999-07-21
EP0727805B1 EP0727805B1 (en) 2006-01-25

Family

ID=8004592

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960250034 Expired - Lifetime EP0727805B1 (en) 1995-02-16 1996-02-09 Contact lever unit for low voltage circuit breaker

Country Status (2)

Country Link
EP (1) EP0727805B1 (en)
DE (2) DE29503327U1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19629482C1 (en) * 1996-07-12 1997-09-11 Siemens Ag Low-voltage (LV) circuit breaker switch contact design
DE19635366A1 (en) 1996-08-21 1998-02-26 Siemens Ag Movable contact arrangement for a low-voltage circuit breaker with a pivot bearing
DE29615566U1 (en) 1996-08-28 1998-01-02 Siemens Ag Movable switching contact arrangement with a contact lever receiving contact lever carrier
DE19637678A1 (en) * 1996-09-05 1998-03-12 Siemens Ag Low voltage circuit breaker with a drive device
DE19806944C1 (en) * 1998-02-19 1999-06-24 Goerlitz Esg Gmbh LV protection switch
US5899323A (en) * 1998-05-07 1999-05-04 Eaton Corporation Electrical switching apparatus with contact finger guide
DE10048660A1 (en) * 2000-09-27 2002-04-11 Siemens Ag Movable contact carrier for a low-voltage circuit breaker with a spacer for the contact lever
DE10132127C1 (en) * 2001-06-28 2002-11-14 Siemens Ag Movable contact carrier for LV switchgear has compression pressure used for thickness calibration of each sandwich structure provided by contact lever and associated spacer
DE102004009873A1 (en) * 2004-02-26 2005-09-15 Siemens Ag Switching contact arrangement
DE102004020654A1 (en) * 2004-04-22 2005-11-10 Siemens Ag Switching contact arrangement
DE102005009484A1 (en) * 2005-02-23 2006-09-14 Siemens Ag Contact lever assembly for a low voltage circuit breaker
CN100514525C (en) * 2007-08-08 2009-07-15 常熟开关制造有限公司(原常熟开关厂） Movable contact of circuit breaker

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1002439B (en) * 1954-06-14 1957-02-14 Voigt & Haeffner Ag Contact arrangement, especially for circuit breakers with upstream and main contacts
GB1197705A (en) * 1968-01-24 1970-07-08 Westinghouse Electric Corp Circuit Breaker with Improved Contact Structure.
FR2484136A1 (en) * 1980-06-06 1981-12-11 Merlin Gerin Contact element for high current LV circuit breaker - has movable contact plates which are joined by brazing of contact head and shunt at opposite ends of body
EP0225207A1 (en) * 1985-10-31 1987-06-10 Merlin Gerin Cinematic transmission chain between the control mechanism and the poles of an electric circuit breaker with a moulded insulating casing
EP0410902A1 (en) * 1989-07-26 1991-01-30 Merlin Gerin Low tension circuit-breaker for high currents with multiple contacts

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1002439B (en) * 1954-06-14 1957-02-14 Voigt & Haeffner Ag Contact arrangement, especially for circuit breakers with upstream and main contacts
GB1197705A (en) * 1968-01-24 1970-07-08 Westinghouse Electric Corp Circuit Breaker with Improved Contact Structure.
FR2484136A1 (en) * 1980-06-06 1981-12-11 Merlin Gerin Contact element for high current LV circuit breaker - has movable contact plates which are joined by brazing of contact head and shunt at opposite ends of body
EP0225207A1 (en) * 1985-10-31 1987-06-10 Merlin Gerin Cinematic transmission chain between the control mechanism and the poles of an electric circuit breaker with a moulded insulating casing
EP0410902A1 (en) * 1989-07-26 1991-01-30 Merlin Gerin Low tension circuit-breaker for high currents with multiple contacts

Also Published As

Publication number Publication date
EP0727805B1 (en) 2006-01-25
DE29503327U1 (en) 1995-04-13
DE59611326D1 (en) 2006-04-13
EP0727805A2 (en) 1996-08-21

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