EP0259800A2 - Disjoncteur de protection de ligne bipolaire - Google Patents

Disjoncteur de protection de ligne bipolaire Download PDF

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Publication number
EP0259800A2
EP0259800A2 EP87112970A EP87112970A EP0259800A2 EP 0259800 A2 EP0259800 A2 EP 0259800A2 EP 87112970 A EP87112970 A EP 87112970A EP 87112970 A EP87112970 A EP 87112970A EP 0259800 A2 EP0259800 A2 EP 0259800A2
Authority
EP
European Patent Office
Prior art keywords
bridge element
circuit breaker
pole circuit
breaker according
switching
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
EP87112970A
Other languages
German (de)
English (en)
Other versions
EP0259800B1 (fr
EP0259800A3 (en
Inventor
Volker Schmitt
Rolf Goehle
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.)
ASEA BROWN BOVERI AKTIENGESELLSCHAFT
Original Assignee
BBC Brown Boveri AG Switzerland
Asea Brown Boveri AG Germany
BBC Brown Boveri AG Germany
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 BBC Brown Boveri AG Switzerland, Asea Brown Boveri AG Germany, BBC Brown Boveri AG Germany filed Critical BBC Brown Boveri AG Switzerland
Priority to AT87112970T priority Critical patent/ATE72361T1/de
Publication of EP0259800A2 publication Critical patent/EP0259800A2/fr
Publication of EP0259800A3 publication Critical patent/EP0259800A3/de
Application granted granted Critical
Publication of EP0259800B1 publication Critical patent/EP0259800B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01H71/1009—Interconnected mechanisms
    • 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
    • H01H71/002—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00 with provision for switching the neutral conductor
    • 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
    • H01H71/1045—Multiple circuits-breaker, e.g. for the purpose of dividing current or potential drop
    • 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
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2409—Electromagnetic mechanisms combined with an electromagnetic current limiting mechanism
    • 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
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures

Definitions

  • the invention relates to a two-pole circuit breaker in a shell design, with a multi-part housing with a magnetic release, with two switch poles, the switching planes of which are arranged next to one another and each of which is assigned a contact carrier, which are actuated together by a bridge element from the anchor of the magnetic release.
  • Two-pole circuit breakers serve different purposes, such as. B. to secure single-phase cables with simultaneous separation of the neutral. Another possible application is to increase the breaking capacity by coupling the two contact break points, ie by double break. Space-saving two-pole circuit breakers are also often used for reasons of space, although two electrically separated conductor networks are switched simultaneously by mechanical actuation.
  • a two-pole circuit breaker in shell design has become known from DE-OS 2 234 423, which describes an installation self-switch with a short-circuit and / or an overcurrent release, with a switching mechanism and two contact interruptions
  • the switching mechanism is arranged centrally in this switch and is held on the housing shells by corresponding lugs, while the contact interruption points are arranged laterally in arc chambers located on both sides of the switching mechanism.
  • This design makes it possible to use the switching mechanism that is customary for single-pole self-switches in a switch design with a simple interruption and to transmit the trigger movement from the trigger via a truss-like bridge element to the movable contact pieces.
  • the object of the invention is therefore to provide a two-pole circuit breaker of the generic type, which is simple in construction and economical to produce and in which, while avoiding the disadvantages discussed above, the two switch poles are actuated with only one magnetic release, with the best possible use of space within the switch housing being realized should be.
  • the bridge element is provided with a traverse which extends vertically through both switching planes and which acts directly on both contact carriers and is in mechanical engagement with both switching mechanisms and actuates the switching contacts directly when triggered.
  • the magnetic release according to the invention is arranged off-center in one half of the housing, so that its striking armature is located in the switching plane of a switch pole and acts on the crossbar off-center.
  • the switching level here and below means the continuation of the area spanned between the open contact pieces of one switch pole, which is parallel to that of the other switch pole.
  • the bridge element executes a pivoting movement about an axis of rotation when it is acted upon by the impact anchor, said axis being arranged at a distance parallel to the cross member.
  • the width of the guide surfaces is determined so that it corresponds at least to the length of the stroke of the impact anchor.
  • the height of the guide surfaces ie the distance between the crossmember and the axis of rotation, is approximately twice the width of the guide surfaces, while the thickness of the guide part, ie the distance between the guide surfaces, corresponds approximately to half their width.
  • the cross member is partially covered by the bridge element, the bridge element covering the distance between the switching devices, so that the cross member only emerges from the bridge element at the ends actuating the switching devices.
  • the bridge element is preferably manufactured together with the guide surfaces and the integrally formed shaft journals as well as with the cross member as a one-piece molding made of insulating material.
  • Plastic possibly also fiber-reinforced plastic, is considered as the insulating material, which is processed by injection molding. But it can also be provided that the bridge element made of other insulating materials, for. B. ceramic molding compounds, possibly with a supporting insert made of wire or the like.
  • FIG. 2 shows the top view of the arrangement shown in FIG. 1.
  • parts of the switching mechanism 14 can be seen, which covers the switch pole 12 underneath and is separated from the neighboring switching mechanism 15 by the partition wall 20 and a second partition wall 21.
  • Each of the partitions 20, 21 delimits a housing half, each with a switch pole 12, 13.
  • the plane between the partitions 20, 21 is a parting plane by which the bridge element 24 used is divided into two sections of equal length.
  • the switching mechanism 15 covers the switch pole 13 lying underneath.
  • the bridge element 24 is transverse to the switching planes which are parallel to the housing partition walls 20, 21 arranged with a traverse 26.
  • the magnetic release 16 is arranged, the impact armature 22 of which rests on the cross member 26 of the bridge element 24 and, in the event of tripping, acts on the bridge element on one side.
  • guide surfaces 28 are formed on the bridge element 24, which are inserted and guided in a precisely fitting recess 30, which is formed between the partition walls 20, 21.
  • An elongated hole is inserted in the contact carrier 11 as a guide 25 for the guide pin 23.
  • the magnetic trigger 16 with its impact anchor 22 is constructed in a known manner, i. H. provided with a bobbin, a coil and a magnetic core, and shown only schematically.
  • the dimensions of the recess 30 are precisely matched to those of the guide part 27 of the bridge element 24, so that the bridge element 24 can be inserted into the recess 30 with minimal play and the guide surfaces 28 lie tightly against one another.
  • the guide part 27 provided with guide surfaces 28 is formed asymmetrically, ie on one half, onto the bridge element 24. This means that the correct installation position is clearly defined.
  • the guide pin 23 slides in the guide 25 of the contact carrier 11 during its pivoting movement, which is effected by the action of the cross member 26 of the bridge element 24, which in turn is acted upon by the impact anchor 22 which has come out of the magnetic release 16.
  • the cross member 26 also carries out a pivoting movement together with the bridge element 24 and assumes an opposite, ie to the left, inclined position when it is acted upon by the impact anchor 22 triggered.
  • the magnetic release 15 is located in the switching plane, which is separated from the switch oil 12 visible in side view by the partition 20.
  • FIG. 4 shows a corresponding top view of the arrangement in FIG. 3, as was shown in FIG. 2 for the arrangement from FIG. 1.
  • the same parts are provided with the same reference numbers.
  • the bridge element 24 has assumed a different position as a result of the action by the impact armature 22 of the magnetic release 16. While the formation 27 with the guide surfaces 28 can be seen on the left side of the bridge element 24 in FIG. 2, the guide part 27 can now be seen on the right side of the bridge element 24. As already explained in relation to FIG. 3, this is due to the fact that the bridge element has swiveled to the left, thereby revealing the view of the guide part 27 which can now be seen on the right-hand side when viewed from above.
  • FIG. 5 shows a perspective view of a bridge element 24, which is formed from a cylindrical body, on which trusses 26 with a trapezoidal cross section are formed on both end faces.
  • short shaft journals 33 are formed on the guide surfaces 28, the central axis of which is aligned with the axis of rotation or pivoting of the bridge element 24.
  • FIG. 6 shows the partial bottom view of the guide part 27 of the bridge element 24 inserted into the recess 30 provided for this purpose in the area of the partition walls 20, 21.
  • the shaft journals 33 integrally formed on the guide surfaces 28 of the guide part 27 engage clearly in recesses 31 provided for this purpose.
  • the recesses 31 are recessed both into the partition 20 and into the bulge 32 of the partition 21 and in this way ensure the sufficient mobility of the bridge element 24 while maintaining the position required for the function.

Landscapes

  • Breakers (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
EP87112970A 1986-09-09 1987-09-04 Disjoncteur de protection de ligne bipolaire Expired - Lifetime EP0259800B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87112970T ATE72361T1 (de) 1986-09-09 1987-09-04 Zweipoliger leitungsschutzschalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863630643 DE3630643A1 (de) 1986-09-09 1986-09-09 Zweipoliger leitungsschutzschalter
DE3630643 1986-09-09

Publications (3)

Publication Number Publication Date
EP0259800A2 true EP0259800A2 (fr) 1988-03-16
EP0259800A3 EP0259800A3 (en) 1988-09-28
EP0259800B1 EP0259800B1 (fr) 1992-01-29

Family

ID=6309205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87112970A Expired - Lifetime EP0259800B1 (fr) 1986-09-09 1987-09-04 Disjoncteur de protection de ligne bipolaire

Country Status (3)

Country Link
EP (1) EP0259800B1 (fr)
AT (1) ATE72361T1 (fr)
DE (2) DE3630643A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6930403B2 (en) 2002-08-21 2005-08-16 High Tide Associates, Inc. Mobile electrical power source

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3193646A (en) * 1962-05-02 1965-07-06 Wadsworth Electric Mfg Co Interlock for multi-pole circuit breakers
DE1286188B (de) * 1965-09-09 1969-01-02 Licentia Gmbh Installationsselbstschalter mit Hilfskontakt
DE2048256A1 (de) * 1970-10-01 1972-04-06 Bbc Brown Boveri & Cie Selbstschalter mit Nulleiterabschaltung
DE2234423A1 (de) * 1972-07-13 1974-01-24 Bbc Brown Boveri & Cie Installationsselbstschalter in schalenbauweise
FR2563375B1 (fr) * 1984-04-24 1988-05-20 Legrand Sa Disjoncteur a fonction differentielle

Also Published As

Publication number Publication date
EP0259800B1 (fr) 1992-01-29
ATE72361T1 (de) 1992-02-15
DE3630643A1 (de) 1988-03-17
DE3776468D1 (de) 1992-03-12
EP0259800A3 (en) 1988-09-28

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