EP0017817A1 - Interrupteur auxiliaire pour disjoncteurs de protection - Google Patents

Interrupteur auxiliaire pour disjoncteurs de protection Download PDF

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Publication number
EP0017817A1
EP0017817A1 EP80101610A EP80101610A EP0017817A1 EP 0017817 A1 EP0017817 A1 EP 0017817A1 EP 80101610 A EP80101610 A EP 80101610A EP 80101610 A EP80101610 A EP 80101610A EP 0017817 A1 EP0017817 A1 EP 0017817A1
Authority
EP
European Patent Office
Prior art keywords
auxiliary switch
lever
contacts
circuit breaker
nose
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.)
Withdrawn
Application number
EP80101610A
Other languages
German (de)
English (en)
Inventor
Günter Haupt
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 EP0017817A1 publication Critical patent/EP0017817A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
    • H01H71/462—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts housed in a separate casing, juxtaposed to and having the same general contour as the main casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts
    • H01H73/045—Bridging contacts

Definitions

  • the invention relates to an auxiliary switch for circuit breakers, such as circuit breakers, which provides additional contacts for control or monitoring tasks, with a force storage device providing the driving force for moving contacts when unlatched.
  • Auxiliary switches typically draw their drive power from the circuit breaker with which they are coupled or assembled. In the case of an auxiliary switch with several contacts, the correspondingly strong energy store in the circuit breaker is required. As a result, the device series of the circuit breaker, which are used more frequently without auxiliary switches, must be constructed in a more complex manner.
  • the invention has for its object to develop an auxiliary switch that can accommodate multiple contacts and that does not load the energy store of the circuit breaker.
  • the auxiliary switch has its own energy accumulator with a separate jack.
  • Such an auxiliary switch not only has the advantage that it does not load the circuit breaker, but also that the switching operation of the circuit breaker cannot be influenced by the sequence of movements of the auxiliary switch.
  • Such an auxiliary switch therefore promotes the safety of a circuit breaker in two ways. If the auxiliary switch is hindered in its movement, for example due to a mechanical defect as a result of the contacts being welded, the cut-off of the protective switch is not impaired.
  • the energy store of the auxiliary switch is expediently designed in such a way that the tripping elements of a multi-pole circuit breaker are just sufficient to trip the auxiliary switch.
  • the tripping torque of the auxiliary switch is the same as that of a multi-pole circuit breaker.
  • a favorable embodiment is that the contacts of the auxiliary switch cooperate with a push rod on which a ratchet lever engages, which rests with its ratchet nose on the nose of a driving lever and is lifted by an energy accumulator. It is held down by the front of a coupling lever between the point of attack of the energy accumulator and the latch nose.
  • the driver lever is rotatably mounted in a fixed position and rests on a driver of the circuit breaker at its free end.
  • the coupling lever is mounted approximately in the middle and engages at its free end in a coupling member of the hand lever.
  • auxiliary switch is shown in side view with the housing wall removed. There is a circuit breaker on the back with which he works.
  • FIG. 2 shows a contact designed as an opener for the auxiliary switch.
  • FIG. 3 two contacts designed as openers for the auxiliary switch of Fig. 1 are shown.
  • FIG. 4 shows a contact designed as a make contact for the auxiliary switch according to FIG. 1.
  • FIG. 5 shows two contacts designed as make contacts for the auxiliary switch according to FIG. 1.
  • the auxiliary switch 1 according to FIG. 1 has its own energy accumulator 2 and a separate jack 3.
  • the elements of the auxiliary switch are arranged on one side of a mounting wall and the elements of the circuit breaker on the rear wall.
  • the contacts 4 of the auxiliary switch work together with a push rod 5, which carries counter contacts 6 in the form of a contact bridge.
  • a pawl lever 7 engages on the push rod 5 and is connected to the push rod 5 so as to be movable by the joint 8.
  • the push rod is guided in the usual way.
  • the pawl lever 7 rests with its pawl nose 9 on the nose 10 of a driving lever 11.
  • the driver lever is raised by an energy accumulator 2 and held down by the front side 12 of a coupling lever.
  • the end face 12 of the coupling lever 13 lies between the point of attack of the energy accumulator 2 and the pawl nose 9.
  • the driver lever 11 is rotatably supported by the axis 111 so as to be stationary in its center.
  • the coupling lever 13 is mounted in a fixed position approximately centrally through the axis 15. At its free end, it engages in a coupling element of the hand lever of the circuit breaker to be presented behind the plane of the drawing. In the embodiment, the free end of the coupling lever 13 is horseshoe-shaped and receives a pin of the coupling member 16.
  • the driver 14 When the circuit breaker responds, the driver 14 is pivoted out clockwise, whereby the driver lever is pivoted counterclockwise and the pawl lever 7 is released, whereby the coupling member 16 is also transferred to the switch-off position shown in FIG. 1.
  • the coupling member 16 In the switched-on position, the coupling member 16 is guided to the right limit 20 of the elongated hole. The end face 12 then rests on the pawl lever 7 further to the left. In the exemplary embodiment, contacts 4 and 6 are then opened.
  • the coupling member 16 moves into the switch-off position shown in FIG. 1. This position is also reached at the end of the switch-off process when the circuit breaker responds.
  • the idle state of the driver lever 11 is ensured by a spring 30, which is designed in the form of a hairpin in the exemplary embodiment. Electrical connections for the auxiliary switch are labeled 31 and 32.
  • FIGS. 2 and 4 each have a contact bridge with contacts 6, and FIGS. 2 and 5 each have two contact bridges with contacts 6 and 36.
  • the contact system is designed according to FIGS. 2 and 3 as a break contact and according to FIGS. 4 and 5 as a make contact.

Landscapes

  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
EP80101610A 1979-04-12 1980-03-26 Interrupteur auxiliaire pour disjoncteurs de protection Withdrawn EP0017817A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2915169 1979-04-12
DE19792915169 DE2915169C3 (de) 1979-04-12 1979-04-12 Hilfsschalter für Schutzschalter

Publications (1)

Publication Number Publication Date
EP0017817A1 true EP0017817A1 (fr) 1980-10-29

Family

ID=6068323

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80101610A Withdrawn EP0017817A1 (fr) 1979-04-12 1980-03-26 Interrupteur auxiliaire pour disjoncteurs de protection

Country Status (3)

Country Link
EP (1) EP0017817A1 (fr)
JP (1) JPS55146834A (fr)
DE (1) DE2915169C3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0303965A2 (fr) * 1987-08-17 1989-02-22 Asea Brown Boveri Aktiengesellschaft Appareil de commutation électrique
EP0318344A1 (fr) * 1987-11-26 1989-05-31 Telemecanique Additif de signalisation de défaut pour appareil électrique de protection
CN100343936C (zh) * 2003-11-26 2007-10-17 Lg产电株式会社 用于断路器的附属设备
CZ300117B6 (cs) * 2006-01-25 2009-02-11 Oez, S. R. O. Vnejší tlacítko pro elektrický prístroj, zvlášte pro výkonový jistic

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1286188B (de) * 1965-09-09 1969-01-02 Licentia Gmbh Installationsselbstschalter mit Hilfskontakt
US3530412A (en) * 1968-07-17 1970-09-22 Ite Imperial Corp Circuit breaker stack including auxiliary alarm switch
CH584454A5 (fr) * 1974-08-01 1977-01-31 Bbc Brown Boveri & Cie

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1286188B (de) * 1965-09-09 1969-01-02 Licentia Gmbh Installationsselbstschalter mit Hilfskontakt
US3530412A (en) * 1968-07-17 1970-09-22 Ite Imperial Corp Circuit breaker stack including auxiliary alarm switch
CH584454A5 (fr) * 1974-08-01 1977-01-31 Bbc Brown Boveri & Cie

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0303965A2 (fr) * 1987-08-17 1989-02-22 Asea Brown Boveri Aktiengesellschaft Appareil de commutation électrique
EP0303965A3 (en) * 1987-08-17 1990-05-30 Asea Brown Boveri Aktiengesellschaft Electric switchgear
EP0318344A1 (fr) * 1987-11-26 1989-05-31 Telemecanique Additif de signalisation de défaut pour appareil électrique de protection
FR2623938A1 (fr) * 1987-11-26 1989-06-02 Telemecanique Electrique Additif de signalisation de defaut pour appareil electrique de protection
CN100343936C (zh) * 2003-11-26 2007-10-17 Lg产电株式会社 用于断路器的附属设备
CZ300117B6 (cs) * 2006-01-25 2009-02-11 Oez, S. R. O. Vnejší tlacítko pro elektrický prístroj, zvlášte pro výkonový jistic

Also Published As

Publication number Publication date
DE2915169A1 (de) 1980-10-16
JPS55146834A (en) 1980-11-15
DE2915169C3 (de) 1982-02-11
DE2915169B2 (de) 1981-05-27

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT FR GB IT

17P Request for examination filed

Effective date: 19810216

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19820605

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HAUPT, GUENTER