EP0372349A1 - Functional locking cabinet for a medium tension switchgear - Google Patents

Functional locking cabinet for a medium tension switchgear Download PDF

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Publication number
EP0372349A1
EP0372349A1 EP89121864A EP89121864A EP0372349A1 EP 0372349 A1 EP0372349 A1 EP 0372349A1 EP 89121864 A EP89121864 A EP 89121864A EP 89121864 A EP89121864 A EP 89121864A EP 0372349 A1 EP0372349 A1 EP 0372349A1
Authority
EP
European Patent Office
Prior art keywords
switch
lever
open
earthing switch
latch
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
EP89121864A
Other languages
German (de)
French (fr)
Other versions
EP0372349B1 (en
Inventor
Albert Mercier
Robert Boyat
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.)
Alstom Holdings SA
Original Assignee
GEC Alsthom 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
Application filed by GEC Alsthom SA filed Critical GEC Alsthom SA
Priority to AT89121864T priority Critical patent/ATE99451T1/en
Publication of EP0372349A1 publication Critical patent/EP0372349A1/en
Application granted granted Critical
Publication of EP0372349B1 publication Critical patent/EP0372349B1/en
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
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/46—Interlocking mechanisms
    • H01H33/48—Interlocking mechanisms for interlocking between casing or cover and mechanism for operating contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/46—Interlocking mechanisms
    • H01H33/52—Interlocking mechanisms for interlocking two or more switches

Definitions

  • the present invention relates to a functional locking unit for a medium voltage installation, such as a cabinet enclosing a medium voltage switch and an earthing switch.
  • An object of the invention is to provide a functional unit which is capable of performing certain functions, of authorizing certain maneuvers and of prohibiting others.
  • the housing of the invention should, in operation - allow the earthing switch to be closed only if the switch is open - prohibit the closing of the earthing switch if the switch is closed - prohibit the closing of the switch, if the earthing switch is closed - authorize the opening of the access panel to the medium voltage compartment which if the earthing switch is closed - prohibit the opening of the earthing switch if the aforementioned access panel is open
  • the box of the invention will have to when testing cables - only allow the installation and removal of the test device if the earthing switch is closed - prohibit closing the switch after opening the earthing switch to carry out the test - prohibit access to the cable heads during the tests.
  • the subject of the invention is a functional locking box for a medium-voltage installation comprising in a cabinet closed by an access panel at least one switch, an earthing switch and an operating mechanism for these devices, said mechanism comprising for each of the devices, a shaft being able to assume in rotation two given angular positions corresponding respectively to the open or closed state of the device, each shaft being provided with a disk provided with a cutout whose position corresponds in the open or closed state of the device with which it is associated, said housing being characterized in that it comprises a first movable lock with two positions which, in cooperation with the open or closed state of the discs, prevents the closing of the earthing switch if the switch is open and prohibits closing the switch if the earthing switch is closed, a second lock having a first position and a second position which can be blocked by blocking means acting when the earthing switch is open, a first lever driven by said first latch, having a first position in which it blocks a first strike cooperating with a possible first bolt of said panel and a second position in
  • the rectangle M shows the operating mechanism of the switch and the earthing switch.
  • the operation of these devices is done by rotation of shafts 1 and 2 respectively on which discs 1A and 2A are fixed respectively.
  • the disc 1A fixed to the operating shaft 1 of the switch, comprises a cutout 1B.
  • the disc 2A fixed to the operating shaft 2 of the earthing switch comprises a cutout 2B.
  • the earthing switch is in the open position and the cutout is in the position of the figure (3rd quadrant).
  • a lock 3 in the form of a rod is capable of moving in translation along its largest dimension between two positions in which it can block the rotation of one or the other of the disks 1A and 2A when its end engages in cutting.
  • the disc 2A carries a stud 2C which cooperates with a lever 4 pivoting about an axis 4B and returned by a spring 4C in the direction of the stud.
  • the lever 4 When the earthing switch is closed, the lever 4 cooperates with the stud 2C and prevents the rotation of the shaft 2A in the direction of the arrow f′2 opposite to the arrow f2, thus forcing operator action on lever 4, to release the shaft 2 before opening the earthing switch.
  • the mechanism is completed, on the shaft side of the earthing switch by a lock 5, in the form of a rod, provided with a notch 5A and capable of moving in translation parallel to its large dimension.
  • the lock 3 on the shaft side of the switch, has a notch 3A cooperating with a lever 6 pivoting about an axis 6A; the movement of the lock 3 causes the lever 6 to rotate.
  • the housing comprises a keeper 8 in the form of a disc of axis 8A having a roughly triangular notch 8B cooperating with one end 6B of the lever 6 and a substantially rectangular cutout 8C cooperating with a bolt 10 linked to the access panel 11 of the installation.
  • a keeper 8 in the form of a disc of axis 8A having a roughly triangular notch 8B cooperating with one end 6B of the lever 6 and a substantially rectangular cutout 8C cooperating with a bolt 10 linked to the access panel 11 of the installation.
  • the housing includes a second keeper 9, earthing switch side, in the form of a disc of axis 9A having a cut along a cord 9B and a rectangular cut 9C.
  • the lever 7 prohibits the rotation of the keeper 9 when it is itself immobilized by the latch 5.
  • the cutout 9C receives a bolt 10A linked to the panel 11.
  • the access panel is irremovable and locked.
  • a spring 12 connects the levers 6 and 7; it is fixed so as to bring the ends of these levers which cooperate with the latches 3 and 5 respectively, keeping them in their rest positions.
  • a spring 13 connects the keepers 8 and 9 and placed so as to rotate the keeper 8 on the switch side clockwise and the keeper 9, earthing switch side anti-clockwise.
  • the switch is open.
  • the pin 2C maintains the lever 4 in the low position: the latter blocks the lever 5 which immobilizes the keeper 7 so that the panel 11 is immobilized.
  • the panel 11 is also locked by the lever 6, held in position by the spring 12, which blocks the rotation of the keeper 9 despite the action of the spring 13.
  • FIG. 3 Starting from the configuration of FIG. 1, the closing of the earthing switch results in a rotation of 180 degrees of the disc 2A in the direction of the arrow f2 of FIG. 1 and we arrive at the configuration of Figure 3.
  • the rotation of the disc 2A causes the translation to the left of the figure of the lock 3 which locks the disc 1A and consequently prevents the closing of the switch.
  • the lever 6 pivots and unlocks the keeper 8 which pivots and releases the bolt 10.
  • the access panel 11 is therefore closed unlocked.
  • the strike 9 switches the lever 7 which pushes the latch 5 preventing any rotation of the lever 4. This results in the impossibility of opening the earthing switch.
  • the cable tests involve opening the earthing switch with the access panel open (to allow the passage of braids or connection cables), while maintaining the impossibility of closing the switch.
  • This test panel ( Figure 5) only has the 10A bolt; it is painted in a conspicuous color different from that of the station (for example red).
  • This test panel is referenced 15 in FIG. 5.
  • the lever 4 is then unlocked, which authorizes the opening of the earthing switch.
  • the disc 2A maintains the lever 4 in the low position by the stud 2C.
  • the lever 4 blocks the latch 5 which immobilizes the lever 7 which itself prohibits any rotation of the keeper 9.
  • Removing the panel 15 requires closing the earthing switch.
  • the housing of the invention fulfills all the safety functions required by the operation of a medium-voltage installation.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Patch Boards (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Discharge Heating (AREA)
  • Casings For Electric Apparatus (AREA)
  • Connection Or Junction Boxes (AREA)

Abstract

The invention relates to a functional locking cabinet for a medium tension switchgear. Functional locking cabinet for a medium tension switchgear comprising, within a casing closed by an access panel, at least one switch, a ground isolator and a mechanism for operating these systems, said mechanism comprising for each one of the systems a shaft which can adopt in rotation two given angular positions corresponding respectively to the open-circuit or closed-circuit condition of the system, each shaft being equipped with a disc equipped with a slot, the position of which corresponds to the open-circuit or closed- circuit condition of the system with which it is associated, said cabinet being characterised in that it comprises a first lock (3) which can be moved into two positions, a second lock (5) having two positions and two levers (6, 7) for driving the locks. Application: medium tension switchgear.

Description

La présente invention est relative à un boîtier fonctionnel de verrouillage pour une installation à moyenne tension, telle qu'une armoire enfermant un interrupteur moyenne tension et un sectionneur de mise à la terre.The present invention relates to a functional locking unit for a medium voltage installation, such as a cabinet enclosing a medium voltage switch and an earthing switch.

Un but de l'invention est de réaliser un boîtier fonctionnel qui soit susceptible d'effectuer certaines fonctions, d'autoriser certaines manoeuvres et d'en interdire d'autres.An object of the invention is to provide a functional unit which is capable of performing certain functions, of authorizing certain maneuvers and of prohibiting others.

Ainsi le boîtier de l'invention devra, en exploitation
- ne permettre la fermeture du sectionneur de terre que si l'inter­rupteur est ouvert
- interdire la fermeture du sectionneur de terre si l'interrupteur est fermé
- interdire la fermeture de l'interrupteur, si le sectionneur de terre est fermé
- n'autoriser l'ouverture du panneau d'accès au compartiment moyenne tension qui si le sectionneur de terre est fermé
- interdire l'ouverture du sectionneur de terre si le panneau d'accès précité est ouvertThus the housing of the invention should, in operation
- allow the earthing switch to be closed only if the switch is open
- prohibit the closing of the earthing switch if the switch is closed
- prohibit the closing of the switch, if the earthing switch is closed
- authorize the opening of the access panel to the medium voltage compartment which if the earthing switch is closed
- prohibit the opening of the earthing switch if the aforementioned access panel is open

De même, le boîtier de l'invention devra lors de manoeuvre d'essais sur les câbles
- n'autoriser la mise en place et le retrait du dispositif d'essai que si le sectionneur de terre est fermé
- interdire la fermeture de l'interrupteur après l'ouverture du sectionneur de terre pour effectuer l'essai
- interdire l'accès aux têtes de câbles pendant les essais.Likewise, the box of the invention will have to when testing cables
- only allow the installation and removal of the test device if the earthing switch is closed
- prohibit closing the switch after opening the earthing switch to carry out the test
- prohibit access to the cable heads during the tests.

L'invention a pour objet un boîtier fonctionnel de verrouillage pour une installation à moyenne tension comportant dans une armoire fermée par un panneau d'accès au moins un interrupteur, un sectionneur de terre et un mécanisme de manoeuvre de ces appareils, ledit mécanisme comprenant pour chacun des appareils, un arbre pouvant prendre en rotation deux positions angulaires données correspondant respecti­vement à l'état ouvert ou fermé de l'appareil, chaque arbre étant muni d'un disque muni d'une découpe dont la position correspond à l'état ouvert ou fermé de l'appareil auquel il est associé, ledit boîtier étant caractérisé en ce qu'il comprend un premier verrou mobile à deux positions qui en coopération avec l'état ouvert ou fermé des disques, interdit la fermeture du sectionneur de terre si l'interrupteur est ouvert et interdit la fermeture de l'interrupteur si le sectionneur de terre est fermé,
- un second verrou ayant une première position et une seconde position pouvant être bloquée par des moyens de blocage agissant lorsque le sectionneur de terre est ouvert,
- un premier levier entraîné par ledit premier verrou, ayant une première position dans lequelle il bloque une première gâche coopérant avec un éventuel premier pêne dudit panneau et une seconde position dans laquelle il débloque ladite première gâche,
- un second levier entraînant ledit second verrou et venant au contact d'une seconde gâche coopérant avec un deuxième pêne du second panneau, la translation dudit panneau dans son plan dégageant ledit second pêne de ladite seconde gâche, le mouvement de ladite seconde gâche déplaçant le second verrou qui, en association avec lesdits moyens de blocage, interdit l'ouverture du sectionneur de terre, lesdits leviers étant reliés par un premier ressort tendant à les rapprocher, lesdites gâches étant reliées par un ressort tendant à les maintenir en position d'échappement des pênes.The subject of the invention is a functional locking box for a medium-voltage installation comprising in a cabinet closed by an access panel at least one switch, an earthing switch and an operating mechanism for these devices, said mechanism comprising for each of the devices, a shaft being able to assume in rotation two given angular positions corresponding respectively to the open or closed state of the device, each shaft being provided with a disk provided with a cutout whose position corresponds in the open or closed state of the device with which it is associated, said housing being characterized in that it comprises a first movable lock with two positions which, in cooperation with the open or closed state of the discs, prevents the closing of the earthing switch if the switch is open and prohibits closing the switch if the earthing switch is closed,
a second lock having a first position and a second position which can be blocked by blocking means acting when the earthing switch is open,
a first lever driven by said first latch, having a first position in which it blocks a first strike cooperating with a possible first bolt of said panel and a second position in which it unlocks said first strike,
a second lever driving said second latch and coming into contact with a second strike cooperating with a second bolt of the second panel, the translation of said panel in its plane releasing said second bolt from said second strike, the movement of said second strike moving the second latch which, in combination with said blocking means, prevents the opening of the earthing switch, said levers being connected by a first spring tending to bring them closer, said strikes being connected by a spring tending to keep them in the exhaust position bolts.

L'invention sera bien comprise par la description donnée ci-après d'un mode préféré de réalisation de l'invention, en référence au dessin annexé dans lequel :

  • - les figures 1 à 6 sont des schémas expliquant le principe de l'invention au cours des diverses circonstances qui peuvent se rencontrer au cours de l'exploitation ou des essais.
The invention will be better understood from the description given below of a preferred embodiment of the invention, with reference to the appended drawing in which:
  • - Figures 1 to 6 are diagrams explaining the principle of the invention during the various circumstances which may be encountered during operation or tests.

Dans la figure 1, le rectangle M schématise le mécanisme de manoeuvre de l'interrupteur et du sectionneur de terre. La manoeuvre de ces appareils se fait par rotation d'arbres 1 et 2 respectivement sur lesquels sont fixés des disques 1A et 2A respectivement. Le disque 1A, fixé à l'arbre 1 de manoeuvre de l'interrupteur, comprend une découpe 1B.In Figure 1, the rectangle M shows the operating mechanism of the switch and the earthing switch. The operation of these devices is done by rotation of shafts 1 and 2 respectively on which discs 1A and 2A are fixed respectively. The disc 1A, fixed to the operating shaft 1 of the switch, comprises a cutout 1B.

Dans la figure 1 l'interrupteur est en position ouverte, et la découpe est dans la position de la figure (4ème quadrant). Lorsque l'interrupteur est fermé, l'arbre a tourné de 180 degrés dans le sens de la flèche f1 et la découpe vient dans la position 1′B représenté en tiretés dans la figure (2ème quadrant).In Figure 1 the switch is in the open position, and the cutout is in the position of the figure (4th quadrant). When the switch is closed, the shaft has rotated 180 degrees in the direction of arrow f1 and the cutout comes in position 1′B shown in dashed lines in the figure (2nd quadrant).

Le disque 2A, fixé à l'arbre 2 de manoeuvre du sectionneur de terre comprend une découpe 2B. Dans la figure 1, le sectionneur de terre est en position ouverte et la découpe est dans la position de la figure (3ème quadrant).The disc 2A, fixed to the operating shaft 2 of the earthing switch comprises a cutout 2B. In figure 1, the earthing switch is in the open position and the cutout is in the position of the figure (3rd quadrant).

Lorsque le sectionneur de terre est fermé, l'arbre a tourné de 180° dans le sens de la flèche f2 et la découpe vient dans la position indiquée en 2′B en tiretés (ler quadrant).When the earthing switch is closed, the shaft has rotated 180 ° in the direction of arrow f2 and the cutout comes in the position indicated in 2′B in dashed lines (1st quadrant).

Un verrou 3, en forme de tringle, est susceptible de se déplacer en translation le long de sa plus grande dimension entre deux positions dans lesquelles il peut bloquer la rotation de l'un ou de l'autre des disques 1A et 2A lorsque son extrémité s'engage dans la découpe.A lock 3, in the form of a rod, is capable of moving in translation along its largest dimension between two positions in which it can block the rotation of one or the other of the disks 1A and 2A when its end engages in cutting.

Dans la figure 1, le verrou 3 s'engage dans la découpe 2B du disque 2A. C'est sa position de repos.In Figure 1, the latch 3 engages in the cutout 2B of the disc 2A. It is his resting position.

Le disque 2A porte un téton 2C qui coopère avec un levier 4 pivotant autour d'un axe 4B et rappelé par un ressort 4C en direction du téton.The disc 2A carries a stud 2C which cooperates with a lever 4 pivoting about an axis 4B and returned by a spring 4C in the direction of the stud.

Lorsque le sectionneur de terre est fermé, le levier 4 coopère avec le téton 2C et empêche la rotation de l'arbre 2A dans le sens de la flèche f′2 inverse de la flèche f2, obligeant ainsi, une action de l'opérateur sur le levier 4, pour libérer l'arbre 2 avant l'ouverture du sectionneur de terre.When the earthing switch is closed, the lever 4 cooperates with the stud 2C and prevents the rotation of the shaft 2A in the direction of the arrow f′2 opposite to the arrow f2, thus forcing operator action on lever 4, to release the shaft 2 before opening the earthing switch.

Le mécanisme est complété, du côté de l'arbre du sectionneur de terre par un verrou 5, sous forme de tringle, muni d'une échan­crure 5A et capable de se déplacer en translation parallèlement à sa grande dimension.The mechanism is completed, on the shaft side of the earthing switch by a lock 5, in the form of a rod, provided with a notch 5A and capable of moving in translation parallel to its large dimension.

Le verrou 3, côté arbre de l'interrupteur, possède une échan­crure 3A coopérant avec un levier 6 pivotant autour d'un axe 6A ; le mouvement du verrou 3 entraîne la rotation du levier 6.The lock 3, on the shaft side of the switch, has a notch 3A cooperating with a lever 6 pivoting about an axis 6A; the movement of the lock 3 causes the lever 6 to rotate.

Un levier 7 pivotant autour d'un axe 7A s'engage dans l'échan­crure 5A du verrou 5 ; la translation du verrou 5 provoque la rotation du levier 7.A lever 7 pivoting about an axis 7A engages in the notch 5A of the latch 5; the translation of the lock 5 causes the lever 7 to rotate.

Le boîtier comprend une gâche 8 sous forme d'un disque d'axe 8A possèdant une échancrure à peu près triangulaire 8B coopérant avec une extrémité 6B du levier 6 et une découpe sensiblement rectangu­laire 8C coopérant avec un pêne 10 lié au panneau d'accès 11 de l'installation. Lorsque le pêne 10 est engagé dans l'échancrure de la gâche 8 et la gâche 8 immobilisée par le levier 6, le panneau 11 est fermé et inamovible.The housing comprises a keeper 8 in the form of a disc of axis 8A having a roughly triangular notch 8B cooperating with one end 6B of the lever 6 and a substantially rectangular cutout 8C cooperating with a bolt 10 linked to the access panel 11 of the installation. When the bolt 10 is engaged in the notch of the keeper 8 and the keeper 8 immobilized by the lever 6, the panel 11 is closed and cannot be removed.

Le boîtier comprend une seconde gâche 9, côté sectionneur de terre, sous forme d'un disque d'axe 9A possédant une découpe selon une corde 9B et une découpe rectangulaire 9C.The housing includes a second keeper 9, earthing switch side, in the form of a disc of axis 9A having a cut along a cord 9B and a rectangular cut 9C.

Le levier 7 interdit la rotation de la gâche 9 lorque qu'il est lui-même immobilisé par le verrou 5.The lever 7 prohibits the rotation of the keeper 9 when it is itself immobilized by the latch 5.

La découpe 9C reçoit un pêne 10A lié au panneau 11. Lorsque le pêne est engagé dans la gâche 9 et la gâche 9 immobilisée par le levier 7, le panneau d'accès est inamovible et verrouillé.The cutout 9C receives a bolt 10A linked to the panel 11. When the bolt is engaged in the keeper 9 and the keeper 9 immobilized by the lever 7, the access panel is irremovable and locked.

Un ressort 12 relie les leviers 6 et 7 ; il est fixé de manière à rapprocher les extrémités de ces leviers qui coopèrent respectivement avec les verrous 3 et 5, les maintenant dans leurs positions de repos.A spring 12 connects the levers 6 and 7; it is fixed so as to bring the ends of these levers which cooperate with the latches 3 and 5 respectively, keeping them in their rest positions.

Un ressort 13 relie les gâches 8 et 9 et placé de manière à faire tourner la gâche 8 côté interrupteur dans le sens horaire et la gâche 9, côté sectionneur de terre dans le sens inverse des aiguilles d'une montre.A spring 13 connects the keepers 8 and 9 and placed so as to rotate the keeper 8 on the switch side clockwise and the keeper 9, earthing switch side anti-clockwise.

1 - Interrupteur ouvert, sectionneur de terre ouvert1 - Open switch, open earthing switch

Dans la configuration de la figure 1, l'interrupteur est ouvert. Le téton 2C maintient le levier 4 en position basse : celui-ci bloque le levier 5 qui immobilise la gâche 7 de sorte que le panneau 11 est immobilisé.In the configuration of Figure 1, the switch is open. The pin 2C maintains the lever 4 in the low position: the latter blocks the lever 5 which immobilizes the keeper 7 so that the panel 11 is immobilized.

Le verrouillage du panneau 11 est également assuré par le levier 6, maintenu en position par le ressort 12, qui bloque la rotation de la gâche 9 malgré l'action du ressort 13.The panel 11 is also locked by the lever 6, held in position by the spring 12, which blocks the rotation of the keeper 9 despite the action of the spring 13.

2 - Interrupteur fermé, sectionneur de terre ouvert.2 - Switch closed, earthing switch open.

On se référera à la figure 2. La fermeture de l'interrupteur se traduit par une rotation de 180 degrés de l'arbre 1 dans le sens de la flèche f1 de la figure 1 et donc du disque 1A qui vient occuper la position indiquée dans la figure (découpe 1′B dans le 2ème quadrant). Le disque 2 reste verrouillé par le verrou 3, d'où une impossibilité de fermer le sectionneur de terre. Le reste des pièces n'ayant pas bougé, le panneau reste immobilisé par les pênes 10 et 10A immobilisés dans les gâches 9 et 9A.Refer to Figure 2. Closing the switch results in a 180 degree rotation of the shaft 1 in the direction of the arrow f1 in FIG. 1 and therefore of the disc 1A which comes to occupy the position indicated in the figure (cutout 1′B in the 2nd quadrant). The disc 2 remains locked by the latch 3, which makes it impossible to close the earthing switch. The rest of the parts having not moved, the panel remains immobilized by the bolts 10 and 10A immobilized in the strikes 9 and 9A.

3 - Interrupteur ouvert, sectionneur de terre fermé3 - Switch open, earthing switch closed

On se référera à la figure 3. Partant de la configuration de la figure 1, la fermeture du sectionneur de terre se traduit par une rotation de 180 degrés du disque 2A dans le sens de la flèche f2 de la figure 1 et on aboutit à la configuration de la figure 3. La rotation du disque 2A provoque la translation vers la gauche de la figure du verrou 3 qui verrouille le disque 1A et interdit par suite la fermeture de l'interrupteur. Le levier 6 pivote et déverrouille la gâche 8 qui pivote et libère le pêne 10.Reference will be made to FIG. 3. Starting from the configuration of FIG. 1, the closing of the earthing switch results in a rotation of 180 degrees of the disc 2A in the direction of the arrow f2 of FIG. 1 and we arrive at the configuration of Figure 3. The rotation of the disc 2A causes the translation to the left of the figure of the lock 3 which locks the disc 1A and consequently prevents the closing of the switch. The lever 6 pivots and unlocks the keeper 8 which pivots and releases the bolt 10.

La rotation du disque 2 libère également le levier 4 qui remonte sous l'action du ressort 14. Le verrou 5 est libéré mais le levier 7 exerce toujours une action sur la gâche 9 qui maintient la pêne 10A.The rotation of the disc 2 also releases the lever 4 which rises under the action of the spring 14. The latch 5 is released but the lever 7 always exerts an action on the keeper 9 which maintains the bolt 10A.

Le panneau d'accès 11 se trouve donc fermé déverrouillé.The access panel 11 is therefore closed unlocked.

4 - Ouverture du panneau d'accès au compartiment moyenne tension4 - Opening the access panel to the medium voltage compartment

En déplaçant le panneau 11 vers le haut (figure 4), les pênes 10 et 10A font tourner respectivement les gâches 8 et 9 qui restent dans leur position sous l'action du ressort 13. La gâche 8 vient bloquer le levier 6 qui maintient le verrou 3 dans la position interdisant toute fermeture de l'interrupteur.By moving the panel 11 upwards (FIG. 4), the bolts 10 and 10A rotate the keepers 8 and 9 respectively which remain in their position under the action of the spring 13. The keeper 8 comes to block the lever 6 which maintains the lock 3 in the position preventing any closing of the switch.

La gâche 9 fait basculer le levier 7 qui pousse le verrou 5 interdisant toute rotation du levier 4. Il en résulte une impossibilité d'ouverture du sectionneur de terre.The strike 9 switches the lever 7 which pushes the latch 5 preventing any rotation of the lever 4. This results in the impossibility of opening the earthing switch.

5 - Essai sur les câbles. Remplacement du panneau d'accès par un panneau d'essai.5 - Test on cables. Replacement of the access panel with a test panel.

Les essais sur les câbles impliquent l'ouverture du sectionneur de terre avec panneau d'accès ouvert (pour permettre le passage des tresses ou câbles de raccordement), tout en maintenant l'impossibi­lité de fermeture de l'interrupteur.The cable tests involve opening the earthing switch with the access panel open (to allow the passage of braids or connection cables), while maintaining the impossibility of closing the switch.

Ces conditions seront réalisées en mettant, en lieu et place du panneau d'accès, un panneau d'essai permettant le passage des tresses ou câbles en partie inférieure, et masquant les têtes de câbles en partie supérieure.These conditions will be achieved by putting, in place of the access panel, a test panel allowing the passage of braids or cables in the lower part, and masking the cable heads in the upper part.

Ce panneau d'essai (figure 5) ne possède que le pêne 10A ; il est peint d'un couleur voyante et différente de celle du poste (par exemple rouge).This test panel (Figure 5) only has the 10A bolt; it is painted in a conspicuous color different from that of the station (for example red).

Ce panneau d'essai est référencé 15 dans la figure 5.This test panel is referenced 15 in FIG. 5.

En déplaçant le panneau d'essai 15 vers le bas, le pêne 10A fait pivoter la gâche 9 qui libère le levier 7 qui entraîne le verrou 5 vers la gauche de la figure.By moving the test panel 15 downwards, the bolt 10A rotates the keeper 9 which releases the lever 7 which drives the latch 5 to the left of the figure.

Le levier 4 est alors déverrouillé, ce qui autorise l'ouverture du sectionneur de terre.The lever 4 is then unlocked, which authorizes the opening of the earthing switch.

La chaîne : gâche 8, levier 6, verrou 3 disque 1A, n'est pas affectée par la mise en place du panneau 15 et la fermeture de l'interrupteur reste impossible.The chain: strike 8, lever 6, lock 3 disc 1A, is not affected by the installation of the panel 15 and the closing of the switch remains impossible.

6. Essai avec sectionneur de terre ouvert6. Test with open earthing switch

On se référera à la figure 6. L'ouverture du sectionneur de terre à provoqué une rotation de 180 degrés du disque 2A dans le sens de la flèche f′2 de la figure 5.We will refer to figure 6. The opening of the earthing switch caused a rotation of 180 degrees of the disc 2A in the direction of the arrow f′2 of figure 5.

Le disque 2A maintient le levier 4 en position basse par le téton 2C. Le levier 4 bloque le verrou 5 qui immobilise le levier 7 qui lui-même interdit toute rotation de la gâche 9.The disc 2A maintains the lever 4 in the low position by the stud 2C. The lever 4 blocks the latch 5 which immobilizes the lever 7 which itself prohibits any rotation of the keeper 9.

Le retrait du panneau 15 est donc empêché pendant les essais conduits avec sectionneur de terre ouvert.The removal of the panel 15 is therefore prevented during the tests conducted with the earthing switch open.

Le retrait du panneau 15 nécessite la fermeture du sectionneur de terre.Removing the panel 15 requires closing the earthing switch.

La description précédente a montré que le boîtier de l'invention remplissait toutes les fonctions de sécurité exigées par l'exploitation d'une installation à moyenne tension.The preceding description has shown that the housing of the invention fulfills all the safety functions required by the operation of a medium-voltage installation.

Claims (3)

1/ Boîtier fonctionnel de verrouillage pour une installation à moyenne tension comportant dans une armoire fermée par un panneau d'accès au moins un interrupteur, un sectionneur de terre et un mécanisme de manoeuvre de ces appareils, ledit mécanisme comprenant pour chacun des appareils, un arbre pouvant prendre en rotation deux positions angulaires données correspondant respectivement à l'état ouvert ou fermé de l'appareil, chaque arbre étant muni d'un disque muni d'une découpe dont la position correspond à l'état ouvert ou fermé de l'appareil auquel il est associé, ledit boîtier étant caractérisé en ce qu'il comprend un premier verrou (3) mobile à deux positions qui en coopération avec l'état ouvert ou fermé des disques, interdit la fermeture du sectionneur de terre si l'inter­rupteur est ouvert et interdit la fermeture de l'interrupteur si le sectionneur de terre est fermé,
- un second verrou (5) ayant une première position et une seconde position pouvant être bloquée par des moyens de blocage (4, 2C) agissant lorsque le sectionneur de terre est ouvert,
- un premier levier (6) entraîné par ledit premier verrou (3), ayant une première position dans lequelle il bloque une première gâche coopérant avec un éventuel premier pêne (10) dudit panneau et une seconde position dans laquelle il débloque ladite première gâche,
- un second levier (7) entraînant ledit second verrou (5) et venant au contact d'une seconde gâche (7) coopérant avec un deuxième pêne (10A) du second panneau, la translation dudit panneau dans son plan dégageant ledit second pêne de ladite seconde gâche, le mouvement de ladite seconde gâche déplaçant le second verrou qui, en association avec lesdits moyens de blocage, interdit l'ouverture du sectionneur de terre, lesdits leviers étant reliés par un premier ressort tendant à les rapprocher, lesdites gâches étant reliées par un ressort tendant à les maintenir en position d'échappement des pênes.1 / Functional locking unit for a medium-voltage installation comprising in a cabinet closed by an access panel at least one switch, an earthing switch and a mechanism for operating these devices, said mechanism comprising for each of the devices, a shaft which can assume in rotation two given angular positions corresponding respectively to the open or closed state of the apparatus, each shaft being provided with a disc provided with a cut-out whose position corresponds to the open or closed state of the device with which it is associated, said housing being characterized in that it comprises a first movable latch (3) with two positions which, in cooperation with the open or closed state of the discs, prevents the closing of the earthing switch if the switch is open and prohibits the closing of the switch if the earthing switch is closed,
a second latch (5) having a first position and a second position that can be blocked by blocking means (4, 2C) acting when the earthing switch is open,
a first lever (6) driven by said first latch (3), having a first position in which it blocks a first strike cooperating with a possible first bolt (10) of said panel and a second position in which it unlocks said first strike,
- A second lever (7) driving said second latch (5) and coming into contact with a second keeper (7) cooperating with a second bolt (10A) of the second panel, the translation of said panel in its plane releasing said second bolt from said second strike, the movement of said second strike moving the second latch which, in association with said blocking means, prevents the opening of the earthing switch, said levers being connected by a first spring tending to bring them closer, said strikes being connected by a spring tending to keep them in the bolt escape position. 2/ Boîtier selon la revendication 1, caractérisé en ce que lesdits moyens de blocage comprennent un troisième levier (4) coopérant avec un téton (26) du disque (2A) du sectionneur de terre et rappelé par un ressort (4C).2 / housing according to claim 1, characterized in that said locking means comprise a third lever (4) cooperating with a stud (26) of the disc (2A) of the earthing switch and returned by a spring (4C). 3/ Boîtier selon l'une des revendications 1 et 2, caractérisé en ce que la position dans laquelle le premier levier (6) libère ladite première gâche correspond à une position dudit premier verrou (3) venant dans la découpe du disque de l'interrupteur.3 / housing according to one of claims 1 and 2, characterized in that the position in which the first lever (6) releases said first keeper corresponds to a position of said first latch (3) coming in the cutting of the disc of the light switch.
EP89121864A 1988-12-02 1989-11-27 Functional locking cabinet for a medium tension switchgear Expired - Lifetime EP0372349B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89121864T ATE99451T1 (en) 1988-12-02 1989-11-27 FUNCTIONAL INTERLOCK HOUSING FOR MEDIUM VOLTAGE SWITCHGEAR.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8815820 1988-12-02
FR8815820A FR2640077B1 (en) 1988-12-02 1988-12-02 FUNCTIONAL LOCKING BOX FOR MEDIUM VOLTAGE INSTALLATION

Publications (2)

Publication Number Publication Date
EP0372349A1 true EP0372349A1 (en) 1990-06-13
EP0372349B1 EP0372349B1 (en) 1993-12-29

Family

ID=9372523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89121864A Expired - Lifetime EP0372349B1 (en) 1988-12-02 1989-11-27 Functional locking cabinet for a medium tension switchgear

Country Status (6)

Country Link
EP (1) EP0372349B1 (en)
JP (1) JPH06101280B2 (en)
AT (1) ATE99451T1 (en)
BR (1) BR8906108A (en)
DE (1) DE68911882T2 (en)
FR (1) FR2640077B1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002080211A2 (en) * 2001-03-30 2002-10-10 Grupo Ormazabal, S.A. System for blocking a switch control device
CN101308740B (en) * 2008-07-04 2010-11-24 成都通力集团股份有限公司 Electrical control apparatus for bipolar isolation switch of railway traffic
CN102279351A (en) * 2010-06-03 2011-12-14 施耐德电器工业公司 Device for dielectric testing of cables by injecting a voltage into said cable in an electric switchgear and electric cell comprising the device
CN101800135B (en) * 2010-01-19 2012-10-10 宁波舜利高压开关科技有限公司 Electric mechanism of isolating switch and operating method
CN102782791A (en) * 2010-03-05 2012-11-14 西门子公司 Drive arrangement of a circuit breaker
CN103938927B (en) * 2014-04-02 2016-08-31 常熟永明电气有限公司 Key expander
CN107527758A (en) * 2017-08-23 2017-12-29 许继集团有限公司 A kind of three-station component and its in place confirming mechanism

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015055220A1 (en) * 2013-10-14 2015-04-23 Abb Technology Ag Single-lock operator device for an outdoor switchgear and switchgear
EP3089186B1 (en) * 2015-04-30 2019-09-11 General Electric Technology GmbH Electrical switchgear and method of operating an electrical switchgear

Citations (4)

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Publication number Priority date Publication date Assignee Title
US2363364A (en) * 1941-07-12 1944-11-21 Westinghouse Electric & Mfg Co Switching apparatus
FR1408959A (en) * 1964-07-11 1965-08-20 Merlin Gerin Mechanical locking device for cubicles containing a switch and an earthing switch
FR1519907A (en) * 1967-02-23 1968-04-05 Merlin Gerin Automatic switching device of an electrical installation
GB2175448A (en) * 1985-04-22 1986-11-26 Ass Elect Ind Switchgear

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
US2363364A (en) * 1941-07-12 1944-11-21 Westinghouse Electric & Mfg Co Switching apparatus
FR1408959A (en) * 1964-07-11 1965-08-20 Merlin Gerin Mechanical locking device for cubicles containing a switch and an earthing switch
FR1519907A (en) * 1967-02-23 1968-04-05 Merlin Gerin Automatic switching device of an electrical installation
GB2175448A (en) * 1985-04-22 1986-11-26 Ass Elect Ind Switchgear

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002080211A2 (en) * 2001-03-30 2002-10-10 Grupo Ormazabal, S.A. System for blocking a switch control device
ES2173815A1 (en) * 2001-03-30 2002-10-16 Grupo Ormazabal Sa System for blocking a switch control device
WO2002080211A3 (en) * 2001-03-30 2007-10-18 Grupo Ormazabal Sa System for blocking a switch control device
CN101308740B (en) * 2008-07-04 2010-11-24 成都通力集团股份有限公司 Electrical control apparatus for bipolar isolation switch of railway traffic
CN101800135B (en) * 2010-01-19 2012-10-10 宁波舜利高压开关科技有限公司 Electric mechanism of isolating switch and operating method
CN102782791A (en) * 2010-03-05 2012-11-14 西门子公司 Drive arrangement of a circuit breaker
CN102782791B (en) * 2010-03-05 2015-06-10 西门子公司 Drive arrangement of a circuit breaker
CN102279351A (en) * 2010-06-03 2011-12-14 施耐德电器工业公司 Device for dielectric testing of cables by injecting a voltage into said cable in an electric switchgear and electric cell comprising the device
CN102279351B (en) * 2010-06-03 2016-06-01 施耐德电器工业公司 For performing device and the electric combination switchgear of the measurement of cable
CN103938927B (en) * 2014-04-02 2016-08-31 常熟永明电气有限公司 Key expander
CN107527758A (en) * 2017-08-23 2017-12-29 许继集团有限公司 A kind of three-station component and its in place confirming mechanism
CN107527758B (en) * 2017-08-23 2019-07-12 许继集团有限公司 A kind of three-station component and its in place confirming mechanism

Also Published As

Publication number Publication date
ATE99451T1 (en) 1994-01-15
EP0372349B1 (en) 1993-12-29
FR2640077A1 (en) 1990-06-08
JPH02199730A (en) 1990-08-08
FR2640077B1 (en) 1991-01-11
DE68911882T2 (en) 1994-04-14
BR8906108A (en) 1990-07-31
DE68911882D1 (en) 1994-02-10
JPH06101280B2 (en) 1994-12-12

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