EP0225207B1 - Kinematische Übertragungskette zwischen dem Steuermechanismus und den Polen eines elektrischen Lastschalters mit einem gespritzten Isoliergehäuse - Google Patents

Kinematische Übertragungskette zwischen dem Steuermechanismus und den Polen eines elektrischen Lastschalters mit einem gespritzten Isoliergehäuse Download PDF

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Publication number
EP0225207B1
EP0225207B1 EP86402269A EP86402269A EP0225207B1 EP 0225207 B1 EP0225207 B1 EP 0225207B1 EP 86402269 A EP86402269 A EP 86402269A EP 86402269 A EP86402269 A EP 86402269A EP 0225207 B1 EP0225207 B1 EP 0225207B1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
pole
cage
case
housing
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 - Lifetime
Application number
EP86402269A
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English (en)
French (fr)
Other versions
EP0225207A1 (de
Inventor
Marc Bur
Jean-Pierre Nebon
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.)
Merlin Gerin SA
Original Assignee
Merlin Gerin SA
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 FR8516346A external-priority patent/FR2589625B1/fr
Priority claimed from FR8516345A external-priority patent/FR2589624B1/fr
Application filed by Merlin Gerin SA filed Critical Merlin Gerin SA
Publication of EP0225207A1 publication Critical patent/EP0225207A1/de
Application granted granted Critical
Publication of EP0225207B1 publication Critical patent/EP0225207B1/de
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
    • 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
    • H01H73/18—Means for extinguishing or suppressing arc
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/0015—Means for testing or for inspecting contacts, e.g. wear indicator
    • 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
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
    • H01H11/0018—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for allowing different operating parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H2001/001—Contacts providing easy replacement of contacts
    • 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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0228—Mounting or assembling the different parts of the circuit breaker having provisions for interchangeable or replaceable 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
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342—Venting arrangements for arc chutes

Definitions

  • the object of the invention is to improve the manufacturing management of a range of circuit breakers with molded insulating housing, thanks to the rapid interchangeability of the poles during assembly.
  • the circuit breaker according to the invention is characterized in that the sub-assembly formed by the support cage for the contact fingers and one of the connection pads of each pole is secured to a wall of the housing, by means of a device fixing integral with the range, and that the cage is connected to the bar by a mechanical connection cooperating with a disengageable coupling member, capable of interrupting the kinematic chain of transmission with the bar at each pole.
  • the coupling member of the mechanical connection is arranged in a housing of the cage between a first retracted position, and a second retaining position corresponding respectively to the uncoupling and to the coupling of said cage with the mechanical connection.
  • the disconnection of the device for fixing the range, and the separation of the cage with the control mechanism frees the sub-assembly from the movable contact which can be easily extracted by the rear face of the housing, and replaced by another sub-assembly of different nature, so as to transform a standard circuit breaker into a circuit breaker limiter, selective or different caliber. It suffices to store different types of subsets of movable contacts, and to adapt a subset of a predetermined pole in a circuit-breaker housing with standard mechanism to obtain a desired device.
  • the body of the insulating cage has an orifice for accessing the housing of the coupling member to allow the latter to move to the first retracted position against the force of a return spring.
  • the actuation of the disengageable coupling member towards the retracted position is advantageously carried out by means of a tool inserted into the orifice of the cage.
  • the support cage for the contact fingers of each pole is pivotally mounted on the connection pad of the sub-assembly.
  • the axis of the cage is positioned in bearings of a stirrup integral with the range, and the fixing screw of the sub-assembly passes through the stirrup to be introduced into a hole in the housing.
  • the cage of the sub-assembly advantageously constitutes an electric and thermal screen between the upper compartment of the box containing the mechanism, and the lower compartment for housing the poles.
  • the cage also forms a barrier against pollution by cutting gases.
  • One of the side faces of the insulating box has an opening for communication with the housing compartment of the pair of contacts separable from each pole, and the arc extinguishing chamber is secured to an insulating support capable of being moved in translation in the longitudinal direction of the pole to ensure either the closing of said opening in the inserted position of the chamber inside of the housing, or the extraction of the chamber through said opening.
  • the visual control of the state of the contacts takes place pole by pole after removal of the corresponding arc extinguishing chamber, and without disassembly of the insulating housing.
  • Each pole is advantageously fitted with a contact wear indicator formed by a visualization mark placed on the insulating cage for supporting the movable contact.
  • the latter comprises a plurality of contact fingers associated with contact pressure springs, each finger having an extension located in the vicinity of the reference mark constituted for example by a semi-open notch of the cage. The position of the end of the extension relative to the mark determines the wear of the contacts.
  • a low-voltage electric circuit breaker 10 having a plurality of juxtaposed poles, comprises a casing 12 molded parallelepiped of insulating material, formed by the assembly of an intermediate casing 14 with open bottoms, a cover 16 shutter of the upper bottom and a plate or base base 18 for closing the lower bottom.
  • the intermediate casing 14 comprises a partition 20 of insulating subdivision, parallel to said bottoms and confining an upper compartment 22 and a lower compartment 24 of the housing 12.
  • the final assembly of the housing 12 takes place by means of main fixing screws 23 passing through holes 25 in the depth direction of the housing 12.
  • a mechanism 26 for accumulating energy and cocking lever 28 is housed in the upper compartment 22 while being supported by the partition 20 of the intermediate casing 14.
  • the front face 30 of the cover 16 is provided with a plurality of orifices 32 for the passage of the cocking lever 28, push buttons for closing and opening, members for signaling the position of the contacts, and trigger setting means.
  • a rod 33 or transverse switching shaft, common to all the poles, is actuated by the mechanism 26 for the simultaneous drive of the moving element of the different poles between the open and closed positions.
  • each pole of the compartment 24 contains a pair of separable contacts 36, 38, and an arc extinguishing chamber 40 equipped with a stack of metal sheets 42 framed by a pair of lower horns 44 and upper Arc guide 46.
  • the fixed contact 36 is carried directly by a first connection pad 48 passing through the insulating base 18.
  • the lower arc horn 44 is fixed to the pad 48 and to the base 18 by fixing means 50, 52.
  • the downstream block 53 of the movable contact 38 cooperating with the fixed contact 36 of each pole comprises a plurality of contact fingers 54 elementaries connected by an axis 55 of transverse connection and positioned in a support cage 56 of insulating material.
  • Each contact finger 54 in copper is connected by a flexible conductor, in particular a braid 58, to a second connection pad 60 of the pole, said pad 60 passing through the base 18 extending parallel to the first pad 48 in the circuit-breaker mounted position.
  • Contact pressure springs 62 are interposed between the contact fingers 54 and the cage 56, and the second pad 60 is secured to the intermediate casing 14 by a screw assembly 64 and caliper 65.
  • the intermediate partition 20 of the insulating housing 12 extends over the entire surface of the casing 14 so as to electrically isolate the lower compartment 24 from the upper compartment 22.
  • a lumen 66 for the passage of a mechanical link 68 between the switching rod 33 and the cage 56 of each pole.
  • the arc extinguishing chamber 40 is aligned with the pair of separable contacts 36, 38, in the longitudinal direction of each pole.
  • the structure of the chamber 40 is shown in detail in FIGS. 4, 5, 6 and 15.
  • the stack of metal sheets 42 for deionizing the arc is arranged on an insulating support 69 comprising two side cheeks 70, 72.
  • the internal face of each cheek 70, 72 is provided with a plurality of ribs 74 delimiting a succession of grooves 76 for positioning the opposite edges of the sheets 42 and of the upper arc horn 46.
  • At each cheek 70, 72, is associated by molding a half-plate 78, 80, frontal fixing, so as to constitute an insulating one-piece piece.
  • the extinguishing chamber 40 is trapped between the two cheeks 70, 72, lateral for positioning the sheets 42, the support 69 and chamber 40 assembly being held in place by means of two flanges 82, 84, assembly.
  • Two auxiliary fixing screws 86, 88 pass through the assembly flanges 82, 84, in the median plane of junction of the two half-plates 78, 80, coplanar with the support 69 insulating the chamber 40.
  • Exhaust slots 89 are provided in the half plates 78.80, for the evacuation of the breaking gases towards the outdoor environment.
  • the extraction of the chamber 40 makes it easier in particular to visually check the wear of the contact pads 36, 38, of each pole, by virtue of a reference mark 92 for viewing arranged on the corresponding cage 56 (FIG. 15).
  • the reference 92 can be formed by a semi-open notch delimited by two edges R1 and R2.
  • the front part of the contact fingers 54 located between the movable contact 38 and the arcing horn 44, has an extension 94, the end of which is opposite the mark 92 of the cage 56.
  • the presence of the pressure springs 62 of contact varies the relative position of the contact fingers 54 relative to the cage 56 as a function of the wear of the contacts 36, 38.
  • the wear check is carried out in the closed position of the circuit breaker after having armed the mechanism 26 energy accumulator by the arming lever 28, and controlled the closing of the contacts 36, 38, by unlocking the closing pawl (not shown).
  • the maximum wear of the contacts 36, 38 is reached when the end of the extension 94 coincides with the edge R2 of the reference 92. Replacement of the pole contacts is then essential. The state and the insertion of the contacts are satisfactory, when the end of the extension 94 is located in the interval between the two edges R1 and R2 of the reference 92.
  • This visual wear check of the contacts 36, 38 does not require disassembly of the housing 12 or of the mechanism 26 and can be carried out pole by pole, by simply unscrewing two fixing screws 86, 88, of the support 69 and extraction of the corresponding arc extinguishing chamber 40.
  • the monobloc support 69 and arc extinguishing chamber 40 assembly is introduced in the longitudinal direction of the pole through the lateral opening 90 of the lower compartment 24 in the direction of the contacts.
  • the insulating support 69 is blocked in translation by the tightening of the auxiliary screws 86, 88, and the upper arcing horn 46 is perfectly positioned with respect to the contact fingers 54 of the moving assembly .
  • the two half-plates 78, 80 coplanar and contiguous with the insulating support 69 constitute a closure wall for the rectangular opening 90 of the lower compartment 24.
  • auxiliary fixing screws 86 is screwed into an orifice in the base 18, while the other fixing screw 88 is introduced into an orifice in the intermediate casing 14.
  • the closure wall In the inserted position of the chamber 40, the closure wall has a flat and continuous surface with the remaining lateral face of the insulating housing 12. The presence slots 89 in this wall allow the escape of the cutting gases to the outside.
  • the insulating cage 56 comprises a plurality of cells 98 for housing the contact fingers 54, and is framed laterally by two parallel flanges 100, 102 extending in the longitudinal direction of the pole. Each flange 100, 102 carries an axis 104, positioned in a corresponding bearing 106 of the stirrup 65 for fixing the second pad 60.
  • the cage 56 is pivotally mounted on the track 60 during the rotational movement of the switching rod 33 actuated by the mechanism 26.
  • the mechanical connection 68 between the switching rod 33 and the cage 56 of each pole is formed by a transmission rod 108, articulated on an axis 110 of a crank 112 wedged on the bar 33.
  • the end of the rod 108 located opposite the axis 110, cooperates with a retractable coupling member 114, arranged at the interior of the cage 56.
  • the coupling member 114 comprises a slide 116 mounted with limited sliding in a cylindrical housing 118 of the cage 56 extending perpendicularly to the rod 108.
  • One of the ends of the slide 116 is extended by a coupling pin 120 intended to engage in an orifice or hole 122 in the connecting rod 108 under the action of a compression spring 124 (FIG. 9).
  • the latter extends coaxially inside the housing 118, being interposed between the slide 116 and a plug 126 for closing the housing 118, located opposite the coupling pin 120.
  • the slide 116 is provided on the other hand an annular groove 128 into which can be introduced a tool (not shown) capable of driving in translation the coupling member 114 towards the retracted position, against the force of the spring 124 ( figure 10).
  • the mechanical connection 68 between the bar 33 and the cage 56 is then interrupted, so as to allow the disassembly of the downstream block 53.
  • the mechanism 26 remains in place in the upper compartment 22, but is mechanically detached from the moving assembly of the pole.
  • the insertion of the tool into the groove 128 of the slider 116 takes place through a rectangular orifice 130 formed in the body of the cage 56 (see FIG. 7) to the right of the movable slider 116.
  • the mounting of a pole is illustrated in FIG. 11, after the mechanism 26 and the bar 33 have been placed in the upper compartment 22 of the housing 12.
  • the assembly of the downstream block 53 takes place at the rear of the housing 12 after removal of the base 18 and of the arc extinguishing chambers 40 of the different poles.
  • the downstream block 53 of the movable contact of each pole is constituted by a sub-assembly comprising the cage 56, the contact fingers 54 with their respective braids 58 and springs 62 of contact pressure, and the second connection pad 60 equipped with the 'fixing bracket 65.
  • the pivot axis 104 of the cage 56 is positioned in the bearings 106 of the stirrup 65 and the downstream block 53 is moved in the direction of the arrow F1 and fixed to the underside of the partition 20 of the intermediate casing 14 at by means of the screw 64 passing through the stirrup 65 of the pad 60.
  • the mechanical connection 68 is coupled to the cage 56 in the disarmed open position of the mechanism 26. This operation requires the manual actuation of the bar 33 towards the closed position, and the displacement of the coupling member 114 by means of a tool towards the retracted position of FIG. 10, to authorize the installation of the transmission rod 108.
  • the introduction of the neutralization tool of the coupling member 114 is carried out through the opening 90 of the housing 12 and through the orifice 130 of the cage 56.
  • the release of the slide 116 then causes the introduction of the coupling pin 120 in the orifice 122 of the connecting rod 108, by virtue of the relaxation of the spring 124.
  • the bar 33 tilts in an anticlockwise direction towards the open position, shown in the figure 3.
  • the energy storage device of mechanism 26 is then armed by means of the arming lever 28 to cause the closing of the circuit breaker, followed by the verification of the depression of the contacts 36, 38, of the different poles.
  • the final assembly of the circuit breaker 10 occurs after insertion of the arc extinguishing chambers 40 into the lateral openings 90 of the assembled housing 12 (see FIG. 2).
  • Figure 13 shows the incorporation of a current limiting pole, comprising contacts 36, 38 with electrodynamic repulsion effect.
  • the contact fingers 154 are pivotally mounted on a transverse axis 156 carried by a support 158 fixed to the insulating cage 56.
  • the support 158 is provided with a curvilinear guide groove 160 the length of which corresponds to the electrodynamic repulsion stroke of the fingers 154, when a short-circuit current appears in the pole.
  • the opening of the contacts 36, 38, by electrodynamic repulsion (in dotted lines in FIG. 13) is then confirmed by the triggering of the mechanism 26 causing the rotation of the bar 33 anticlockwise and the definitive opening of all the poles of the circuit breaker 10.
  • the positioning of the limiting pole of FIG. 13 is carried out in the same manner as that used for the pole of FIGS. 3, 11 and 12, after fixing the stirrup 65 to the intermediate casing 14, and after coupling of the link mechanical 68 ( Figures 7 to 10).
  • the disassembly of the poles of the circuit breaker 10 takes place in the opposite direction to the assembly described above, after removing the base 18 from the housing 12 and the arc extinguishing chambers 40.
  • the disassembly of the downstream block 53 takes place in the direction of arrow F2 (FIG. 11) after unscrewing the screw 64, and uncoupling the mechanical connection 68 with the bar 33.
  • Any other type of pole can of course be adapted to the circuit breaker as a function of the breaking capacity and of the protection and control functions of the circuits.
  • connection pads 48, 60 of each pole are advantageously equipped with positioning wedges 160 which can be adapted in the cells of the base 14.
  • the dimensions of the cells are identical for the whole range, and the thickness of the shims 160 varies according to the caliber. This arrangement makes it possible to use a standard insulating box 12, and to mount ranges of different cross-section in the same cell for ratings ranging from 800 A to 4000 A.
  • the retractable coupling member 114 of FIGS. 7 to 10 can be replaced by any other mechanical disengaging member between the bar 33 and the poles.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Breakers (AREA)

Claims (10)

  1. Elektrischer mehrpoliger Leistungsschalter mit einem Guss-Isoliergehäuse (12) und aufweisend:
    - ein Kniegelenk-Steuermechanismus (26), der mit einem Kommutierstab (33) verbunden ist, der für eine Mehrzahl im Innern des Gehäuses (12) angeordneten gegenüberliegenden Polen gemeinsam ist, mit Einfügung von Trenn-Isolierwänden (34),
    - ein Auslöser der bei Fehlerauftritt mit dem Mechanismus (26) zusammenarbeitet, um die Oeffnung des Leistungschalters (10) zu bewirken durch Auslösen des Mechanismus (26) und Rotation des Stabes (33),
    - wobei jeder Pol ein Paar trennbare Kontakte (36, 38) aufweist, mit einer Serie von elementaren Kontaktfingern (54), die in geschlossener Lage mit einem festen Kontakt (36) zusammenarbeiten, eine Lichtbogenlöschkammer (40), ein Tragisolierkäfig (56) der Kontaktfinger (54) und ein Paar Anschlussklemmen (48, 60) in elektrischer Verbindung mit den trennbaren Kontakten,


    dadurch gekennzeichnet, dass die Untergruppe (53), die von dem Tragkäfig (56) der Kontaktfinger (54) und einer der Anschlussklemmen (60) jedes Pols gebildet wird, mit einer Wand des Gehäuses (12) verbunden ist durch eine Befestigungsvorrichtung (64, 65), die mit der Anschlussklemme (60) verbunden ist, und dass der Tragkäfig (56) mit dem Stab (33) verbunden ist durch eine mechanische Verbindung (68), die mit einem entkuppelbaren Kupplungsorgan (114) zusammenarbeitet, welches die kinematische Uebertragungskette mit dem Stab (33) auf der Höhe jedes Pols unterbrechen kann.
  2. Elektrischer mehrpoliger Leistungsschalter gemäss Anspruch 1, dadurch gekennzeichnet, dass das Kupplungsorgan (114) der mechanischen Verbindung (68) in einem Teil (118) des Tragkäfigs (56) angeordnet ist, zwischen einer ersten zurückgezogenen Lage und einer Zurückhaltlage, die der Entkupplung bzw. Ankupplung des genannten Käfigs (56) mit der mechanischen Verbindung (68) entspricht, und dass der Körper des Tragisolierkäfigs (56) eine Oeffnung (130) aufweist, für den Zugang zum Teil (118), um die Verschiebung des Kupplungsorganes (114) zu der ersten zurückgezogenen Lage hin zu erlauben, entgegen der Kraft einer Rückholfeder (124).
  3. Elektrischer mehrpoliger Leistungsschalter gemäss Anspruch 2, dadurch gekennzeichnet, dass das Kupplungsorgan (114) einen beweglichen Schieber (116) aufweist, der mit beschränkter Gleitung in dem genannten Teil (118) montiert ist, gemäss einer Richtung, die senkrecht zu einer Stange (108) der mechanischen Verbindung (68) ist, wobei der genannte Schieber (116) eine Verlängerung in Form einer Kupplungsachse (120) trägt, die dazu bestimmt ist, in das Loch (122) der Stange (108) einzudringen, in der genannten zweiten Rückhaltlage, und dass die Rückholfeder (124) des Kupplungsorganes (114) zu der genannten zweiten Lage hin durch eine Druckfeder gebildet wird, die sich koachsial im Innern des zylindrischen Teils (118) erstreckt, und dabei zwischen dem Schieber (116) und einem Verschluss-Stöpsel (126) des Teils (118) eingeschoben ist, gegenüber der Kupplungsachse (120).
  4. Elektrischer mehrpoliger Leistungsschalter gemäss Anspruch 1, dadurch gekennzeichnet, dass der Tragkäfig (56) der Kontaktfinger (54) jedes Pols drehbar auf der Anschlussklemme (60) der genannten Untergruppe (53) montiert ist, während der Herstellung der kinematischen Uebertragungskette mit dem Stab (33), und dass die Befestigungsvorrichtung der Untergruppe (53) mit dem Gehäuse (12) einen mit der Anschlussklemme (60) verbundenen Bügel (65) aufweist und eine Blockierschraube (64), die den Bügel (65) durchquert, um in ein Loch des genannten Gehäuses eingeführt zu werden, wobei der Bügel (65) mit Lagern (106) ausgerüstet ist, um die Drehachse (104) des Käfigs (56) aufzunehmen.
  5. Elektrischer mehrpoliger Leistungsschalter gemäss Anspruch 1, in dem das Isoliergehäuse (12) durch die Zusammenfügung eines Zwischengehäuses (14) mit offenen Böden, eines Verschlussdeckels (16) des oberen Bodens und eines Fundamentsockels (18) zum Verschluss des unteren Bodens gebildet wird, wobei das Zwischengehäuse (14) eine Unterteilungswand (20) aufweist, die parallel zu den genannten Böden ist und ein oberes Abteil (22) begrenzt zur Unterbringung des Mechanismus (26), und ein unteres Abteil (24) zur Unterbringung der Pole, dadurch gekennzeichnet, dass eine Oeffnung (66) in der Unterteilungswand (20) vorgesehen ist, zum Durchgang der mechanischen Verbindung (68) jedes Pols, und dass der Isolierkäfig (56) in dem unteren Abteil (24) angeordnet ist, um die genannte Oeffnung (66) zu verschliessen, so dass ein elektrischer thermischer und Anti-Verschmutzungsschirm zwischen den beiden Abteilen (22, 24) des Gehäuses (12) gebildet wird.
  6. Elektrischer mehrpoliger Leistungsschalter gemäss Anspruch 5, dadurch gekennzeichnet, dass sich die Anschlussklemmen (48, 60) jedes Pols parallel eine zur anderen erstrecken und dabei den Sockel gemäss einer Richtung durchqueren, die senkrecht zur Unterteilungswand (20) liegt, wobei jede Anschlussklemme (48, 60) mit einem Positionierkeil (16) ausgerüstet ist, mit einer veränderlichen Dicke, die vom gewählten Kaliber abhängt.
  7. Elektrischer mehrpoliger Leistungsschalter gemäss Anspruch 2 oder 3, in dem die genannte Lichtbogenlöschkammer (40) jedes Pols mit einem Stapel von metallischen Entionisierungsblechen (42) des Lichtbogens ausgerüstet ist, und in dem das genannte Isoliergehäuse (12) eine parallelepipedische Form aufweist, mit vier Seitenflächen, die parallel zweit zu zweit gegenüberliegen und die von einem Deckel (16) mit einer vorderen Steuer- und Einstellseite begrenzt sind, und ein Sockel (18), der mit dem Deckel (16) durch Hauptbefestigungsschrauben (23) verbunden ist zum Schliessen des Gehäuses (12), dadurch gekennzeichnet, dass eine der Seitenflächen des Isoliergehäuses (12) eine Verbindungsöffnung (90) mit dem Abteil (24) aufweist zur Unterbringung der trennbaren Kontaktpaare (36, 38) jedes Pols, und dass die Lichtbogenlöschkammer (40) mit einem Isolierträger (69) verbunden ist, der gemäss der Längsrichtung des Poles verschoben werden kann, um entweder den Verschluss der genannten Oeffnung (90) in eingefügter Lage der Kammer (40) ins Innere des Gehäuses (12) zu gewährleisten, oder das Herausziehen der Kammer (40) durch die genannte Oeffnung (90) zu gewährleisten, was einerseits den Zugang zu der Oeffnung (130) des Kupplungsorganes (114) und andererseits die Ueberprüfung des Zustandes der Kontakte (36, 38) jedes Pols erlaubt, ohne die Haupt-Befestigungsschrauben (23) des Gehäuses (12) zu demontieren.
  8. Elektrischer Leistungsschalter gemäss Anspruch 7, dadurch gekennzeichnet, dass der ausziehbare Isolierträger (69) der Lichtbogenlöschkammer (40) ein Paar Positionierbacken (70, 72) der Metallbleche (42) aufweist, und eine Befestigungsvorderwand, die sich an die genannte Oeffnung (90) des Gehäuses (12) in eingeschobener Lage der Kammer (40) anpassen kann, und dass sich die Befestigungswand senkrecht zu den Positionierbacken (70, 72) der Bleche (42) erstreckt, wobei sie mit wenigstens einer Hilfsschraube (86, 88) zusammenarbeitet, zur Blockierung des Isolierträgers (69) nach Verschluss der Oeffnung (90) durch die genannte Wand.
  9. Elektrischer Leistungsschalter gemäss Anspruch 8, dadurch gekennzeichnet, dass die Befestigungswand des Isolierträgers (69) eine Mehrzahl von Schlitzen (89) aufweist zum Entweichen der Trenngase aus dem Isoliergehäuse (12), und dass jede Backe (70, 72) eine Folge von Positionierrillen (76) der Bleche aufweist und dabei durch Gussverfahren mit einer Halbplatte (78, 80) verbunden ist, um ein Isolier-Blockgusstück zu bilden, wobei die genannte Befestigungsvorderwand durch die Zusammenfügung von zwei symmetrischen Teilen gebildet wird, die das Aufrechterhalten der Bleche (42) und die koplanare Verbindung der beiden Halbplatten (78, 80) hervorrufen dank einem Paar von Befestigungsflanschen (82, 84), die beide von der genannten Hilfsschraube (86, 88) durchquert werden.
  10. Elektrischer Leistungsschalter gemäss Anspruch 7, dadurch gekennzeichnet, dass der vordere Teil jedes Kontaktfingers (54) eine Verlängerung (94) aufweist, die mit der auf dem Käfig (56) angeordneten Sichtmarkierung (92) zusammenarbeitet, um die Abnutzkontrolle der trennbaren Kontakte (36, 38) zu ermöglichen, von der Oeffnung (90) des Gehäuses (12) aus, nach Herausziehen der Kammer (40), und dass die Sichtmarkierung (92) von einer halbgeöffneten Kerbe gebildet ist, die auf einem Teil des Käfigs (56) angeordnet ist, und entlang welcher sich die Verlängerung (94) gemäss der Abnutzung der Kontakte (36, 38) verschiebt, wobei die Abnutzungs-Sichtkontrolle in geschlossener Lage der Kontakte (36, 38) erfolgt.
EP86402269A 1985-10-31 1986-10-13 Kinematische Übertragungskette zwischen dem Steuermechanismus und den Polen eines elektrischen Lastschalters mit einem gespritzten Isoliergehäuse Expired - Lifetime EP0225207B1 (de)

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FR8516345 1985-10-31
FR8516346A FR2589625B1 (fr) 1985-10-31 1985-10-31 Chaine cinematique de transmission entre le mecanisme de commande et les poles d'un disjoncteur electrique
FR8516346 1985-10-31
FR8516345A FR2589624B1 (fr) 1985-10-31 1985-10-31 Disjoncteur electrique multipolaire a boitier isolant moule

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EP0225207A1 EP0225207A1 (de) 1987-06-10
EP0225207B1 true EP0225207B1 (de) 1991-05-15

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DE10144106C1 (de) * 2001-09-03 2003-01-30 Siemens Ag Leistungsschalter mit einer lösbaren Verbindung zwischen einer Schaltkontaktanordnung und einer diese betätigenden Antriebsvorrichtung sowie Verfahren zum Aus- und Einbau der Schaltkontaktanordnung
DE102004002932B4 (de) * 2004-01-14 2013-02-28 Siemens Aktiengesellschaft Lichtbogen-Löscheinrichtung für einen elektrischen Schalter
EP1770730A2 (de) 2005-09-29 2007-04-04 Siemens Aktiengesellschaft Elektrischer Schalter mit Lichtbogen-Löscheinrichtung
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US7495190B2 (en) 2005-09-29 2009-02-24 Siemens Aktiengesellschaft Electrical switch
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CN107633982A (zh) * 2017-10-30 2018-01-26 现代重工(中国)电气有限公司 一种断路器

Also Published As

Publication number Publication date
CA1290798C (en) 1991-10-15
EP0225207A1 (de) 1987-06-10
SG134392G (en) 1993-03-12
DE3679291D1 (de) 1991-06-20
IN168851B (de) 1991-06-29
JPS62105332A (ja) 1987-05-15
US4764650A (en) 1988-08-16
CN86107135A (zh) 1987-04-29
BR8605349A (pt) 1987-08-04
JPH0828173B2 (ja) 1996-03-21
CN1011450B (zh) 1991-01-30

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