CH345053A

CH345053A - Disconnector with fuses

Info

Publication number: CH345053A
Authority: CH
Original assignee: Gardy Particip App
Priority date: 1958-03-01
Filing date: 1958-03-01
Publication date: 1960-03-15

Description

Sectionneur avec fusibles La presente invention a pour objet un section- neur dont les couteaux mobiles sont constitues par des cartouches-fusibles montees Sur un volet muni d'un organe de manoeuvre et articule par rapport ä un bäti, afin de permettre 1'ouverture et la ferme- ture du sectionneur. Dans les sectionneurs de ce gen- re connu, 1e volet portant les cartouches-fusibles est generalement susceptible d'etre retire entierement et afin que 1e public n'ait aucune possibilite d'acces aux pieces sous tension, un ou plusieurs organes d'obturation sont agences de maniere ä venir obturer entierement 1'o@uverture d'un cadre fixe sur 1e pan- neau et destine ä donner Passage aux cartouches- fusibles lors de 1'ouverture et de la fermeture du sectionneur. Ces organes d'obturation sont g6n6rale- ment constitues par une Plaque coulissant 1e long de tiges de guidage et soumise ä 1'action de ressorts tendant ä maintenir celle-ci appliquee Sur la face arriere du panneau. Ce genre de sectionneur est ac- tuellement installe dune maniere courante, mais pre- sente 1'inconvenient que les o14ganes d'obturation peuvent etre repousses hors de leur Position d'obtu- ration, non seulement par les cartouches-fusibles ou par 1e volet portant ceux-ei lors de la fermeture du sectionneur, mais egalement par tout autre objet tel que, par exemple, une Barre metallique portee par un ouvrier. Dans un tel cas, cette Barre metallique peut venir accidentellement en contact avec des: pie- ces sous tension et provoquer un accident grave. Disconnector with fuses The subject of the present invention is a disconnector whose mobile blades are constituted by fuse cartridges mounted on a shutter provided with an operating member and articulated with respect to a frame, in order to allow the opening and the closing of the disconnector. In disconnectors of this known type, the shutter carrying the fuse cartridges is generally capable of being removed entirely and so that the public has no possibility of accessing the live parts, one or more shutter members are arranged so as to completely block the opening of a fixed frame on the panel and intended to give passage to the fuse cartridges when opening and closing the disconnector. These shutter members are generally constituted by a plate sliding along guide rods and subjected to the action of springs tending to maintain the latter applied to the rear face of the panel. This type of disconnector is currently installed in a common way, but has the disadvantage that the shutter organs can be pushed out of their shutter position, not only by the fuse cartridges or by the shutter. carrying these when closing the disconnector, but also by any other object such as, for example, a metal bar carried by a worker. In such a case, this metal bar may accidentally come into contact with live parts and cause a serious accident.

La presente invention a pour objet un section- neur du type decrit et qui tend ä eliminer 1'inconve- nient cite, par 1e fait qu'il comporte des, dispositifs de verrouillage, verrouillant automatiquement les or- ganes d'obturation en Position d'obturation de 1'ou- verture du cadre et par 1e fait qu'un dispositif de liberation, commande par 1e deplacement du volet portant les cartouches-fusibles lors de son actionne- ment en vue de la fermeture du sectionneur, pro- voque la liberation desdits organes d'obturation. The subject of the present invention is a disconnector of the type described and which tends to eliminate the drawback cited, by the fact that it comprises locking devices, automatically locking the shutter members in the off position. blocking of the opening of the frame and by the fact that a release device, controlled by the movement of the shutter carrying the fuse cartridges during its actuation with a view to closing the disconnector, causes the release of said shutter members.

Le dessin annexe illustre, schematiquement et ä titre d'exemple, une forme d'execution du section- neur. La fig. 1 est une vue de face d'un panneau equipe du sectionneur, ce dernier etant en Position fermee. The appended drawing illustrates, schematically and by way of example, one embodiment of the disconnector. fig. 1 is a front view of a panel fitted with the disconnector, the latter being in the closed position.

La fig. 2 est une vue de face de ce meine pan- neau, 1e sectionneur etant hors service et 1e volet RTI ID="0001.0271" WI="7" HE="4" LX="1836" LY="1657"> por- tant les cartouches-fusibles etant retire. fig. 2 is a front view of this same panel, the first disconnector being out of service and the first shutter RTI ID="0001.0271" WI="7" HE="4" LX="1836" LY="1657"> por- both the fuse cartridges being removed.

La fig. 3 est une vue en coupe du panneau, cer- taines Parties du sectionneur, represente en Position d'ouverture, etant vues en coupe. fig. 3 is a sectional view of the panel, certain parts of the disconnector, represented in the open position, being seen in section.

La fig. 4 est une vue en coupe et ä plus grande echelle dune Partie du sectionneur en Position de fermeture. fig. 4 is a sectional view on a larger scale of a part of the disconnector in the closed position.

La fig. 5 est une vue arriere du sectionneur, cer- taines Parties etant arrachees pour plus de clarte du dessin, et 1e sectionneur etant hors Service. fig. 5 is a rear view of the disconnector, with some parts broken away for clarity of the drawing, and the disconnector out of service.

Les fig. 6, 7 et 8 sont des vues perspectives par tielles ä plus grande echelle, illustrant un detail de fabrication. Figs. 6, 7 and 8 are partial perspective views on a larger scale, illustrating a manufacturing detail.

Selon 1e dessin annexe, 1e sectionneur comporte un bäti forme d'un cadre 1 fixe ä 1'aide de quatre vis 2 Sur un panneau 3 et d'un support 4 (fig. 3 et 5) en forme de U soude Sur la face arriere de ce ca- dre. Trois Plots 5 en matiere isolante sont fixes rigi- dement, ä egale distance les uns des autres, sur la Partie mediane du Support 4. Chaque Plot 5 Porte ä chacune de ses extremites une borne de connexion 6 munie de pinces de contact 7 et d'un organe de serrage 8 permettant de connecter un conducteur 61ectrique. Ces pinces constituent les contacts fixes du sectionneur tripolaire. Les contacts mobiles sont articules par rapport au bäti par 1'intermediaire d'un axe d'articulation forme dune barre 9 prdsentant en coupe transversale la forme generale d'un rectangle et munie ä chacune de ses extremites d'un tourillon 10 tournant librement dans un palier amdnage dans une gatte 11 fixee rigidement sur la face arriere du cadre 1. According to the attached drawing, the disconnector comprises a frame in the form of a frame 1 fixed with the aid of four screws 2 to a panel 3 and a U-shaped support 4 (figs. 3 and 5) welded to the face back of this frame. Three studs 5 of insulating material are fixed rigidly, at equal distance from each other, on the middle part of the support 4. Each stud 5 bears at each of its ends a connection terminal 6 provided with contact clamps 7 and a clamping member 8 for connecting a 61ectrique conductor. These clamps constitute the fixed contacts of the three-pole disconnector. The movable contacts are hinged relative to the frame by means of a hinge pin in the form of a bar 9 presenting in cross section the general shape of a rectangle and provided at each of its ends with a pin 10 rotating freely in a bearing amdnage in a gate 11 fixed rigidly on the rear face of the frame 1.

Sur cet axe 9, 10 sont engagees deux pattes 12 fixees rigidement sur un volet 13 muni d'un organe de manoeuvre 14 et sur lequel sont mont6es trois cartouches-fusibles 15. Chaque cartouche 15 est du type connu comportant un corps 17 en matiere ce- ramique renfermant des fils fusibles reliant dlectri- quement deux couteaux 16 portes par les deux ex- tremites de ce corps. Chaque cartouche-fusible est portee par deux pinces supports de type comm com- portant, dune gart, une mächoire fixe 18 fixee rigi- dement sur un plot 19 en matiere isolante et, d'au- tre gart, une mächoire mobile 20 articulee en 21 sur la mächoire fixe et soumise ä 1'action d'un ressort de rappel 22 tendant ä serrer cette mächoire sur 1e couteau 16 engagb dans la pince. On this axis 9, 10 are engaged two lugs 12 rigidly fixed on a flap 13 provided with an operating member 14 and on which are mounted three fuse cartridges 15. Each cartridge 15 is of the known type comprising a body 17 made of this material. - ceramic containing fuse wires electrically connecting two blades 16 carried by the two ends of this body. Each fuse cartridge is carried by two common-type support clamps comprising, on the one hand, a fixed jaw 18 fixed rigidly to a stud 19 made of insulating material and, on the other hand, a mobile jaw 20 articulated in 21 on the fixed jaw and subjected to the action of a return spring 22 tending to clamp this jaw on the first knife 16 engaged in the pliers.

Les plots 19 sont fixes sur deux guides 23 soli- daires de la face arriere du volet 13. Chaque guide 23 est constitue par une piece presentant en coupe transversale la forme d'un U dont la partie mediane comporte une ouverture longitudinale 24 dont les bords prdsentent des echancrures 25. Chaque Plot 19 presente deux pieds 26 dont la largeur a corres- pond ä la largeur b de 1'ouverture 24 ä 1'endroit des echancrures 25 et une longueur c correspondant ä la longueur d des echancrures 25. Chaque pied pre- sente une rainure 27 pratiquee sur ses deux cötds lateraux et dont la largeur e correspond ä 1'6pais- seur f de la matiere du guide 23 tandis que sa pro- fondeur g est au moins egale ä la profondeur des echanerures 25. The studs 19 are fixed on two guides 23 integral with the rear face of the shutter 13. Each guide 23 is constituted by a piece having in cross section the shape of a U whose middle part comprises a longitudinal opening 24 whose edges have indentations 25. Each Pedestal 19 has two feet 26 whose width a corresponds to the width b of the opening 24 at the location of the indentations 25 and a length c corresponding to the length d of the indentations 25. Each foot has a groove 27 made on its two lateral sides and whose width e corresponds to the thickness f of the material of the guide 23 while its depth g is at least equal to the depth of the notches 25.

La mise en place de chaque plot 19 est illustree par les fig. 6 ä 8 et consiste ä engager les pieds 26 dans des 6chancrures 25 voisines jusqu'ä ce que la face inferieure 29 vienne prendre appui sur la face superieure 28 du guide, puis ä ddplacer ce plot 19 axialement ie long du guide. Les parties 31 de ce guide separant des echancrures 25 s'engagent alors dans les rainures 27. Le plot 19 est ainsi amend RTI ID="0002.0277" WI="6" HE="4" LX="1062"LY="2230"> jus- que dans sa position axiale 1e long du guide, et 1e plot est alors fixe Jans cette position par relevage de quatre pattes 32 du guide. The placement of each stud 19 is illustrated by FIGS. 6 to 8 and consists in engaging the feet 26 in adjacent notches 25 until the lower face 29 comes to rest on the upper face 28 of the guide, then in moving this stud 19 axially along the guide. The parts 31 of this guide separating the notches 25 then engage in the grooves 27. The stud 19 is thus amended RTI ID="0002.0277" WI="6" HE="4" LX="1062"LY="2230 "> to its axial position along the first guide, and the first block is then fixed Jans this position by raising four legs 32 of the guide.

Les pattes 12 comportent chacune une lumiere 33 de forme gdn6rale rectangulaire dune largeur plus grande que 1'epaisseur de la barre 9. Une fente 30 dune largeur i correspondant ä 1'epaisseur de cette barre 9 permet la mise en place et 1e retrait des pattes 12 sur cette barre 9. Ainsi 1e volet 13 peut eire aisement mis en place ou retir6. Lorsque 1e volet 13 est en position d'ouverture du sectionneur (fig. 3) ou entierement retird, 1'ou- verture 34 delimitee par 1e cadre 1 est obturee par des volets ä deux battants 35 en matiere isolante. Chaque battant 35 est de forme generale rectangu- laire et l'une de ses tranches laterales presente une rainure 37 et un logement 36. Un axe 38 constitue par un fil d'acier est log6 dans cette rainure 37 et comporte un drapeau 39 loge dans 1e logement 36. Ce fil d'acier 38 emerge de 1'extremitd superieure de la rainure 37 et est engage dans un per@age 40 pra- tiqu6 Jans une corniere 41 fixee ä la face arriere du volet 13. The tabs 12 each comprise a slot 33 of generally rectangular shape with a width greater than the thickness of the bar 9. A slot 30 of a width i corresponding to the thickness of this bar 9 allows the positioning and removal of the tabs. 12 on this bar 9. Thus the first component 13 can be easily put in place or removed. When the shutter 13 is in the open position of the disconnector (FIG. 3) or completely withdrawn, the opening 34 delimited by the frame 1 is closed off by two-leaf shutters 35 made of insulating material. Each leaf 35 is generally rectangular in shape and one of its side edges has a groove 37 and a housing 36. A pin 38 consisting of a steel wire is housed in this groove 37 and includes a flag 39 housed the housing 36. This steel wire 38 emerges from the upper end of the groove 37 and is engaged in a hole 40 made in an angle iron 41 fixed to the rear face of the flap 13.

L'extremite inferieure du fil d'acier 38 emerge de 1'extremite inferieure de la rainure 37 et traverse un pergage 42 pratiqud dans 1'aile superieure 43 d'un support 44 fixe au volet 13 et se termine par un crochet 45 engage entre 1e dos 46 du support 44 et une cloison 47 fixee sur 1'aile inferieure 48 du support 44. Les deux extremites de la rainure 37 sont obturees par de la matiere isolante 49 de ma- ni'ere ä maintenir laxe 38 ä 1'interieur de cette rai- nure 37. Cet axe 38 constitue simultanement un res- sort de torsion dont 1'extremite munie du crochet 45 est maintenue fixe par rapport au bäti de 1'appareil, tandis que 1e drapeau 39 engag6 dans 1e logement 36 exerce une poussee sur 1e volet 35 tendant ä main- tenir celui-ci en position de fermeture (fig. 2 et 5). Comme reprdsente au dessin, deux battants 35 sont prevus pour chaque p61e du sectionneur. Ces deux battants forment les deux battants d'un volet d'obtu- ration dune fenetre donnant passage ä une cartou- che-fusible et dont 1e joint 50 en position de ferme- ture est approximativement situe dans 1e plan de symetrie d'un p61e du seetionneur. Des dispositifs de verrouillage maintiennent les volets 35 en position d'obturation de 1'ouverture du cadre 1. Chaque dispositif de verrouillage comporte une targette 51 coulissant entre une position deRTI ID="0002.0550" WI="6" HE="4" LX="1905" LY="1857"> ver- rouillage et une position de repos dans des lumieres de guidage 52 pratiquees dans les ailes 42 et 47 du support 44. Chaque targette porte une gatte 53 recourbde ä angle droit et se terminant par un cro- chet 54. Cette gatte est situee sous la barre 9, tan- dis que lors de la rotation de celle-ci, 1'un de ses bords lateraux 55 s'engage Jans 1e crochet 54 (fig. 3). Ainsi, lorsque 1e volet 13 est en position ouverte (fig. 3), la barre 9 maintient les targettes 51 en posi- tion relevee ou de verrouillage, pour laquelle leurs extremites superieures interdisent 1'ouverture des volets 35. Par contre, lorsque 1'usager actionne 1e vo- let 13 dans 1e sens de la fleche f 1 (fig. 3), la barre d'articulation 9, deplacee angulairement, agit sur les pattes 53 et provoque un deplacement vers 1e bas des targettes 51 et jusque dans une position dever- rouillee ou de repos (fig. 4) pour laquelle leurs ex- tr6mites superieures sont hors du chemin des volets 35. Au cours du deplacement angulaire du volet 13, les cartouches-fusibles 15 repoussent ces volets con- tre 1'action des ressorts de torsion 38 qui donn.ent ainsi Passage ä ces cartouches-fusibles dont les cou- teaux s'engagent en fin de course du volet 13 dans les pinces fixes 7. Le sectionneur est maintenu en Position de fermeture par la Pression exerc6e par les pinces 7 Sur les couteaux 16 des cartouches-fusibles. The lower end of the steel wire 38 emerges from the lower end of the groove 37 and crosses a pergage 42 practiced in the upper wing 43 of a support 44 fixed to the flap 13 and ends in a hook 45 engaged between the back 46 of the support 44 and a partition 47 fixed to the lower flange 48 of the support 44. The two ends of the groove 37 are closed off by insulating material 49 so as to maintain the axis of this groove 37. This pin 38 simultaneously constitutes a torsion spring, the end of which provided with the hook 45 is kept fixed relative to the frame of the apparatus, while the flag 39 engaged in the housing 36 exerts a pushed on the flap 35 tending to maintain the latter in the closed position (FIGS. 2 and 5). As shown in the drawing, two leaves 35 are provided for each pole of the disconnector. These two leaves form the two leaves of a shutter shutter of a window giving passage to a fuse cartridge and whose first joint 50 in the closed position is approximately located in the first plane of symmetry of a pole. of the setioner. Locking devices maintain the flaps 35 in the position of closing the opening of the frame 1. Each locking device comprises a bolt 51 sliding between a position of RTI ID="0002.0550" WI="6" HE="4" LX ="1905" LY="1857"> locking and a rest position in guide slots 52 made in the wings 42 and 47 of the support 44. Each bolt carries a catch 53 curved at right angles and ending in a hook 54. This catch is located under the bar 9, while during the rotation of the latter, one of its lateral edges 55 engages Jans the first hook 54 (fig. 3). Thus, when the first flap 13 is in the open position (FIG. 3), the bar 9 maintains the bolts 51 in the raised or locked position, for which their upper ends prevent the opening of the flaps 35. On the other hand, when 1 the user actuates the first shutter 13 in the first direction of the arrow f 1 (fig. 3), the hinge bar 9, moved angularly, acts on the lugs 53 and causes a downward displacement of the bolts 51 and into an unlocked or rest position (FIG. 4) for which their upper ends are out of the way of the flaps 35. During the angular displacement of the flap 13, the fuse cartridges 15 push these flaps against 1' action of the torsion springs 38 which thus give passage to these fuse cartridges whose knives engage at the end of the travel of the flap 13 in the fixed clamps 7. The disconnector is held in the closed position by the pressure exerted by the pliers 7 On the blades 16 of the fuse cartridges.

Lors de 1'ouverture du seetionneur, c'est-ä-dire lorsque 1e volet 13 est actionn6 en sens inverse de la fleche f 1 ä partir de sa Position ferm6e (fig. <B>1),</B> les couteaux 16 se d6gagent des pinces 7, puis les cartouches-fusibles traversent 1'ouverture 34 du ca- dre 1 et les ressorts 38 actionnent les volets 35 de leur Position d'ouverture jusque dans leur Position de fermeture au fur et ä mesure du deplacement des cartouches-fusibles. Peu avant que 1e volet 13 attei- gne sa Position d'ouverture (fig. 3), 1e Bord 55 de la Barre 9 agissant Sur 1'extremitd des crochets 54, provoque un d6placement des targettes 51 ä partir de leur Position deverroui116e jusque dans leur Posi tion de verrouillage. When the switch is opened, that is to say when the flap 13 is actuated in the opposite direction to the arrow f 1 from its closed position (fig. <B>1),</B> the knives 16 disengage from the clamps 7, then the fuse cartridges pass through the opening 34 of the frame 1 and the springs 38 actuate the flaps 35 from their open position to their closed position as the elements move. fuse cartridges. Shortly before the shutter 13 reaches its open position (fig. 3), the edge 55 of the bar 9 acting on the end of the hooks 54, causes a movement of the bolts 51 from their unlocked position into their locking position.

En outre, 1e volet 13 est muni d'un verrou ä res- sort 56 qui, coop & ant avec 1e Bord interne du cadre 1, maintient 1e volet 13 en Position de fermeture Sur ce cadre lorsque ce volet ne Porte pas de cartouches- fusibles. In addition, the shutter 13 is provided with a spring lock 56 which, cooperating with the inner edge of the frame 1, keeps the shutter 13 in the closed position on this frame when this shutter does not carry cartridges. fuses.

Gräce aux dispositifs de verrouillage des volets 35 dont la liberation est command & par 1'actionne- ment du volet 13 en vue de la fermeture du section- neur, les volets ne peuvent, en aucun cas, eire ou- verts de maniere intempestive, lorsque 1e sectionneur est en Position d'ouverture, de Sorte que toute entr6e en contact avec des pieces sous tension est rendue impossible. Thanks to the shutter locking devices 35, the release of which is controlled by the actuation of the shutter 13 with a view to closing the disconnector, the shutters cannot, under any circumstances, be opened inadvertently, when the 1st disconnector is in the open position, so that any entry into contact with live parts is made impossible.

En examinant plus.particulierement les fig. 3 et 4 du dessin annexe, an remarque que les pattes 12 peuvent aisement etre d6gag6es de la Barre d'articu- lation 9 en exerpnt une traction f, Sur 1'organe de manoeuvre 14. Toutefois, Tors de la manaeuvre du seetionneur, les becs formes par la fente 30 d6bou- chant dans 1'ouverture 33, s'opposent ä un d6gage- ment intempestif des pattes 12. By examining more.particularly the figs. 3 and 4 of the appended drawing, it is noted that the lugs 12 can easily be disengaged from the hinge bar 9 by exerting a traction f, on the maneuvering member 14. However, during the maneuver of the switch, the beaks formed by the slot 30 opening into the opening 33, oppose an untimely disengagement of the tabs 12.

Claims

CLAIM Disconnector whose movable blades are constituted by fuse cartridges mounted on a shutter provided with an operating member and articulated with respect to a frame comprising a frame whose opening giving passage to the fuse cartridges is obviated. - turee in the opening position of the disconnector by shutter members, characterized by the fact that it comprises locking devices automatically locking the shutter members in the shutter position of the opening of the frame and by the fact that a release device controlled by the movement of the RTI ID="0003.0271"WI="8" HE="4" LX="478" LY="2485"> shutter carrying the fuse cartridges when it is actuated with a view to closing the disconnector, causes the release of said shutter members. SUB-CLAIMS 1. Connector according to claim, characterized in that the opening of the frame is divided into a number of windows equal to the number of fuse cartridges carried by the shutter, and in that each window is closed. by a shutter with two wings each subjected to the action of a spring tending to maintain these shutters in the closed position.

2. Disconnector according to claim and sub-claim 1, characterized by the fact that the line of jonetion of the two leaves closing a window is situated in the first plane of symmetry of the contact members of a pole of the disconnector.

3. Switch according to claim and sub-claims 1 and 2, characterized by the fact that each shutter leaf is articulated with respect to the frame by means of an axis parallel to the plane of symmetry of a pole of the disconnector, which simultaneously constitutes a torsion spring tending to maintain the leaves in the closed position.

4. Disconnector according to claim and sub-claims 1 and 2, characterized by the fact that the first shutter carrying the fuse cartridges is articulated with respect to the frame of the disconnector by means of a bar of rectangular section, provided at each of its ends a freely rotating trunnion in a bearing carried by the first frame.

5. Disconnector according to claim and sub-claims 1, 2 and 4, characterized by the fact that each locking device comprises a slider sliding in guides between a locking position and a rest position and which comprises an actuating member on which the hinge bar of the shutter carrying the fuse cartridges acts in order to move this bolt from one to the other of its two positions.

6. Disconnector according to claim and sub-claims 1 and 2, characterized by the fact that each fuse cartridge is fixed to the first shutter by means of two clamps clamping the two blades of the cartridge, each of these clamps 6tant fixed on a Plot of insulating material made integral with the shutter by means of a guide.

7. Seeter according to claim and sub-claims 1, 2 and 6, characterized by the fact that this guide has the general shape of a U, the median part of which comprises a longitudinal opening, provided with lateral notches, and by the first fact that each Plot is provided with feet capable of engaging in the said recesses, and with lateral grooves capable of engaging On the Parts of the guide separating from the neighboring indentations, lifting legs defining the Position of the Plot 1e along the guide B. Disconnector according to claim and sub-claims 1, 2 and 4, characterized in that the 1st shutter carrying the fuse cartridges is provided with two lugs comprising a slot of a width corresponding to that of the articulation bar, and opening into a slot, of a shape approximately corresponding to that of the said bar, but of larger dimensions, the whole arranged in such a way as to make this flap removable, while avoiding a clearance untimely of this component.