EP0565008B1 - Dispositif à bouton de contrÔle pour disjoncteur pour courant de défaut ou à courant différentiel - Google Patents

Dispositif à bouton de contrÔle pour disjoncteur pour courant de défaut ou à courant différentiel Download PDF

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Publication number
EP0565008B1
EP0565008B1 EP93105552A EP93105552A EP0565008B1 EP 0565008 B1 EP0565008 B1 EP 0565008B1 EP 93105552 A EP93105552 A EP 93105552A EP 93105552 A EP93105552 A EP 93105552A EP 0565008 B1 EP0565008 B1 EP 0565008B1
Authority
EP
European Patent Office
Prior art keywords
test
plate
test key
arrangement according
key arrangement
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
EP93105552A
Other languages
German (de)
English (en)
Other versions
EP0565008A1 (fr
Inventor
Volker Schmitt
Rolf Goehle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Patent GmbH
Original Assignee
ABB Patent GmbH
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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0565008A1 publication Critical patent/EP0565008A1/fr
Application granted granted Critical
Publication of EP0565008B1 publication Critical patent/EP0565008B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/04—Means for indicating condition of the switching device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly

Definitions

  • the invention relates to a test button arrangement for a residual current or residual current circuit breaker according to the preamble of claim 1 (DE 4011 680 A1).
  • test button arrangement serves to check the functional reliability and operational readiness of the residual current or residual current circuit breaker.
  • a test circuit is closed by means of a test button, with which the trigger is activated, whereby a switching lock is released and the contact points are opened.
  • test button arrangement of the type mentioned has become known, in which the switching shaft on which the movable contact pieces of the Fault current or residual current circuit breaker are attached, a switching position indicator cooperates, the coupling between the switching shaft or the movable contact pieces and the switching position indicator is effected by means of a spring arrangement.
  • the test button acts on a further spring arrangement, the free end of which, when the fault current or residual current circuit breaker is switched on, is contacted by pressing the test button with the connection between the selector shaft and the switch position indicator.
  • the spring arrangement has a certain length which is dimensioned such that the free end of the spring arrangement cannot be brought into contact with the connection between the switching shaft and the switching position indicator in the switched-off state. Nevertheless, the test button can be pressed in completely, and in the case when the spring arrangement is damaged, contacting is still possible.
  • the object of the invention is to provide a test button arrangement of the type mentioned in the introduction, in which a closing of the test circuit is reliably prevented when the residual current or residual current circuit breaker is switched off.
  • the test button can be operated when the residual current or residual current circuit breaker is switched off are not placed in the switch-on position, which will definitely prevent the test circuit from closing.
  • the plate can have an extension which interacts with a projection arranged on the selector shaft, as a result of which the selector shaft acts on the extension and moves the plate in the direction of the off position.
  • the plate is expediently rotatably mounted in relation to the housing, which surrounds the residual current or residual current circuit breaker.
  • FIGS. 1 to 4 each show an insight into an electrical switching device, preferably a residual current circuit breaker, the parts that are important for the invention being drawn and the parts that are less important for the invention are omitted.
  • the switching device or more precisely the residual current circuit breaker 10, has a housing 11, of which only the front part, that is to say the part which is opposite the mounting plane, can be seen.
  • the housing 11 has an opening 13 in the front wall 12.
  • a boomerang-shaped extension 20 is arranged perpendicularly thereto, the extension 20 being formed on the edge 19 by means of a connecting lug 21 running perpendicular to the guide plate.
  • the extension 20 extends in the extension of the edge 22 on the left in the drawing in FIG. 1, which extends perpendicular to the front wall 12.
  • a fixed contact piece 23 which is fastened to a contact piece holding rail 24 and which interacts with a movable contact piece 25 which is fastened to a contact lever 26 which is guided in a contact lever carrier 27 which is not illustrated in any more detail and is only indicated by outlines , wherein the contact lever 26 passes through the contact lever carrier 27 and projects beyond the contact lever carrier 27 in the switched-on position on the opposite side facing the front wall, as indicated by the reference number 26 in this area.
  • a lug 29, which runs parallel to the contact carrier axis of rotation 28 and against which the free end of the projection 20 comes to rest, is formed on the contact lever carrier 27, as can also be seen from FIG.
  • the plate 16 has a recess 30, into which a compression spring 31 is inserted, which rests against a stationary stop 32 and acts on the plate 16 continuously in the direction of arrow P in the drawing to the left.
  • the edge 33 lying opposite the edge 22 has a projection 34 projecting perpendicularly thereto, on which a web 35 is formed perpendicularly thereto; the web 35 runs perpendicular to the plate and perpendicular to the front front wall 12.
  • the housing 11 On the right side in FIG. 1, the housing 11 has a recess 36, through which a recess 37 is formed, in which a test button 38 is guided perpendicular to the front wall 12, the test button 38 having an arm 39 running perpendicular to the front wall 12 , at the free end of which an inwardly projecting nose 40 is formed, which engages behind a stop 41 on the housing 11, so that the movement path of the test button 38 in the direction of the arrow F is limited.
  • the test button 38 has a rod 42 running perpendicular to the front front wall 12.
  • a spring support 43 is provided in a stationary manner, which has a pin 44 which runs parallel to the axis of rotation 28 and around which a contact spring 45 is wound in the manner of a coil spring.
  • One of the free legs namely the leg 46 of the contact spring 45 overlaps the inner region of the residual current circuit breaker and has a U-shaped end 47, with a cross bar 48 adjoining the leg 46 and a molded part at its free end, parallel and at an angle the leg 46 down to the contact lever 26 bent longitudinal web 49, the bending angle alpha being such that the free end of the longitudinal web 49 continuously against the contact piece End of the contact lever 26 resiliently.
  • an electrically conductive connection is obtained between the contact lever and the helical spring-like area 45a.
  • the spring support 43 which is shown in a top view in FIG. 5, has a platform 50 which runs parallel to the front wall 12 and on which tabs 51 are formed which guide a lead wire 52 which runs parallel to the guide pin 44 on the platform.
  • the pin 44 is formed on a holding wall 53 which runs perpendicular to the platform in the direction of the front wall, the holding wall 53 being aligned parallel to the plate 16.
  • leg end 54 The end of the lead wire 52 adjacent to the holding wall 53 is bent parallel to it in a leg end 54, which leg end also rests on the platform and is held by means of a holding lug 55.
  • the other end of the helical spring-shaped area 45a of the contact spring 45 is tangent to the pin 44 on the side opposite the platform 50, i.e. above the pin 44, bent away from the area 45a and bent parallel to the pin axis of the pin 44 as a movable contact element 56.
  • the movable contact element 56 is, as can be seen in Figures 1 to 4, in the range of motion of the rod 42, so that when the test button 38 is pressed against the arrow direction F, it acts against the leg end 54 of the lead wire serving as a fixed contact piece 52 is pressed.
  • the lead wire 52 is a leg of a resistor 57, the other leg 58 of which either has a phase conductor - if the rail 24 is in the line path of the neutral conductor of the residual current circuit breaker - or the neutral conductor if the rail 24 is in the line path a phase conductor is connected.
  • FIG. 1 shows the residual current circuit breaker in the state when the movable contact piece 25 just touches the fixed contact piece 23 when it is switched on.
  • the free end of the extension 20 bears against the nose 29.
  • Figure 2 shows the switch-on position, in which the contact lever in the drawing Figure 2 is to the left of the axis of rotation 28; it can be seen that the extension 20 is free of the nose 29.
  • the contact lever 26 and together with the contact lever carrier also the nose 29 moves into the off position, the nose 29 striking against the extension 20 and the extension 20 and thus the plate 16 against the pressure of the compression spring 31 presses to the right so that the projection 34 comes under a shoulder 59 on the rod 42; the shoulder 59 is formed in the area of the pressing surface 38a of the test button 38 parallel to the rod 42 and in such a way that the shoulder 59 is located exactly above the movement path of the projection 34.
  • Figure 4 shows the residual current circuit breaker in the off position; it can also be seen here that the paragraph 59 hits the projection 34 when the test button 38 is to be pressed down, so that the test button contact 54/56 cannot be closed.
  • the plate 16 has at its upper and lower edges two guide lugs 60 and 6-1, which engage behind the guide plate 15 above and below, so that the plate 16 parallel to the upper and lower edges, the also run parallel to the front wall, can be moved.
  • FIGS. 7 to 9 A further embodiment of the invention is shown in FIGS. 7 to 9.
  • the same reference numbers are to be used for the same parts.
  • the guide plate 15 Within the housing 11 is the guide plate 15, the axis of rotation 28 for the contact lever carrier 27, to which the contact lever 26 is attached, which carries the movable contact piece 25, which comes into contact with the fixed contact piece 23.
  • a twisting plate 70 is pivotably articulated on the guide plate 15 via an axis 71.
  • a tab 72 corresponding to the surface 18 is fastened perpendicular to it; perpendicular to the connecting line between the tab 72 and the axis 71 is on the contact pieces 25 and 23 opposite edge of the rotating plate an extension 73 is formed, which has the same function as the projection 34.
  • the residual current circuit breaker 10 has the test button 38 with the rod 42 and the paragraph 59th
  • a hole 74 is provided, in which one end of a coupling lever 75 is suspended, whereas the other end is articulated on the contact lever carrier 27.
  • the leg 46 of the spring 45 which is only partially shown, is designed and connected to the movable contact piece 23 as described above.
  • FIG. 7 shows the switching device in the contact contact position, that is to say in the position in which the movable contact piece 25 just touches the fixed contact piece 23 during the switch-on process. During the further switch-on process, only the position of the contact lever 26 changes, while the position of the rotating plate 70 is unchanged.
  • test button 38 can be pressed so that the leg 56 of the contact spring 45 can be connected to the leg 54 of the lead wire 52 with the resistor 57 and a circuit between the contact lever 26 and a corresponding conductor is closed.
  • the extension 73 comes under the paragraph 59 of the test button 38, so that the extension 73 hampers or prevents the test button 38 from being pushed in completely.
  • both the plate 16 and the rotating plate 70 have a tab 17 and 72 perpendicular to it, respectively.
  • These tabs can be coated with different colors, for example the surface 17 to the left of the center line 17a can be coated in green and the surface to the right of it can be coated in red, so that the red-coated surface is visible through the opening 13 in the switched-on state, whereas the green surface in the switched-off state is recognizable.
  • the tab 72 can also be coated, so that the opening 13 can signal red in the on state and green in the off state.

Landscapes

  • Breakers (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Claims (10)

  1. Dispositif à bouton de contrôle pour un disjoncteur à courant de défaut ou un disjoncteur différentiel (10) avec un bouton de contrôle (38) qui coulisse perpendiculairement au plan de fixation du disjoncteur (10), est actionné depuis la face avant éloignée du point de fixation et agit sur un contact de contrôle (56) mobile à l'aide duquel un circuit de contrôle est ouvert ou fermé, et avec un moyen d'affichage (17) qui indique la position des contacts de commutation (25) mobiles du disjoncteur (10), le moyen d'affichage présentant un premier segment (17) plan qui peut être déplacé devant une fenêtre (13) disposée dans la région de la face avant, caractérisé par le fait que le moyen d'affichage (17) comprend une plaque (16, 70) qui est actionnée et déplacée par les contacts de commutation (23, 25) lors de la commutation, laquelle plaque comporte un deuxième segment (34, 73) qui lors d'une action de coupure est amenée sur le trajet de déplacement du bouton de contrôle (38) et empêche ainsi un actionnement dudit bouton de contrôle et une fermeture du circuit de contrôle.
  2. Dispositif à bouton de contrôle selon la revendication 1, avec une axe de commutation qui porte les contacts, caractérisé par le fait que la plaque (16) présente un prologement (20) qui coopère avec une saillie (29) disposée sur l'axe de commutation (28), laquelle saillie, lors de la coupure agit sur le prolongement et déplace la plaque en direction de la position d'ouverture.
  3. Dispositif à bouton de contrôle selon la revendication 1 ou 2, caractérisé par le fait que la plaque (16) est déplacée par la force d'un ressort de compression (31), la force du ressort de compression s'exerçant sur la plaque dans la direction de la position de fermeture.
  4. Dispositif à bouton de contrôle selon l'une des revendications précédentes, caractérisé par le fait qu'une tige (75) élastique qui est couplée à la plaque (70) est montée sur l'axe de commutation.
  5. Dispositif à bouton de contrôle selon l'une des revendications précédentes, caractérisé par le fait que la plaque (70) est montée stationnaire et pivotante par rapport au boîtier.
  6. Dispositif à bouton de contrôle selon l'une des revendications précédentes, caractérisé par le fait que la plaque (70) est montée sur une platine (15).
  7. Dispositif à bouton de contrôle selon l'une des revendications précédentes, caractérisé par le fait qu'une saillie d'encliquetage (71) est aménagée sur la plaque (70), laquelle saillie forme un palier est peut être engagée dans un évidement de la platine.
  8. Dispositif à bouton de contrôle selon l'une des revendications précédentes, caractérisé par le fait que la plaque comporte un évidement formé par deux ergots ou par un trou (74), dans lequel pénètre la tige élastique.
  9. Dispositif à bouton de contrôle selon l'une des revendications précédentes, caractérisé par le fait que le contact de contrôle mobile est formé par une extrémité (56) d'un tronçon de ressort hélicoïdal (45) dont l'autre extrémité est pressée élastiquement contre un contact de commutation.
  10. Dispositif à bouton de contrôle selon l'une des revendications précédentes, caractérisé par le fait que le circuit de contrôle présente un fil (52) qui est relié à une extrémité d'un résistancc (57) et forme le contact de contrôle fixe coopérant avec le contact de contrôle mobile (56).
EP93105552A 1992-04-09 1993-04-03 Dispositif à bouton de contrÔle pour disjoncteur pour courant de défaut ou à courant différentiel Expired - Lifetime EP0565008B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4211915A DE4211915C2 (de) 1992-04-09 1992-04-09 Prüftastenanordnung für einen Fehlerstrom- oder Differenzstromschutzschalter
DE4211915 1992-04-09

Publications (2)

Publication Number Publication Date
EP0565008A1 EP0565008A1 (fr) 1993-10-13
EP0565008B1 true EP0565008B1 (fr) 1996-05-22

Family

ID=6456451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93105552A Expired - Lifetime EP0565008B1 (fr) 1992-04-09 1993-04-03 Dispositif à bouton de contrÔle pour disjoncteur pour courant de défaut ou à courant différentiel

Country Status (5)

Country Link
EP (1) EP0565008B1 (fr)
CN (1) CN1031737C (fr)
AT (1) ATE138496T1 (fr)
DE (2) DE4211915C2 (fr)
ES (1) ES2090752T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105510818B (zh) * 2015-12-30 2019-02-05 三信国际电器上海有限公司 断路器及其试验装置和方法
CN109507573B (zh) * 2018-07-13 2021-06-01 西安益翔航电科技有限公司 一种断路器高低温性能测试装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1059094B (de) * 1957-10-04 1959-06-11 Voigt & Haeffner Ag Mehrpoliger Selbstschalter, insbesondere Installations-Selbstschalter
DE1152745B (de) * 1961-11-15 1963-08-14 Emil Quermann Pruefeinrichtung fuer Schutzschalter
FR2437692A1 (fr) * 1978-09-28 1980-04-25 Merlin Gerin Dispositif de protection differentielle a bloc differentiel accouple au bloc disjoncteur
FR2584531B1 (fr) * 1985-07-05 1989-01-13 Telemecanique Electrique Limiteur de courant muni d'un element de visualisation
FR2609209B1 (fr) * 1986-12-29 1994-05-20 Merlin Et Gerin Interrupteur differentiel bipolaire a indicateur de defaut
DE4011680A1 (de) * 1990-04-11 1991-10-17 Felten & Guilleaume Energie Pruefeinrichtung fuer fehlerstromschutzschalter

Also Published As

Publication number Publication date
DE59302648D1 (de) 1996-06-27
DE4211915C2 (de) 1995-03-16
EP0565008A1 (fr) 1993-10-13
ATE138496T1 (de) 1996-06-15
DE4211915A1 (de) 1993-10-14
CN1080430A (zh) 1994-01-05
CN1031737C (zh) 1996-05-01
ES2090752T3 (es) 1996-10-16

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