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EP2068338B1 - Disjoncteur de protection à courant de défaut et procédé d'exécution d'un contrôle automatique d'un disjoncteur de protection à courant de défaut - Google Patents

Disjoncteur de protection à courant de défaut et procédé d'exécution d'un contrôle automatique d'un disjoncteur de protection à courant de défaut Download PDF

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Publication number
EP2068338B1
EP2068338B1 EP20080169084 EP08169084A EP2068338B1 EP 2068338 B1 EP2068338 B1 EP 2068338B1 EP 20080169084 EP20080169084 EP 20080169084 EP 08169084 A EP08169084 A EP 08169084A EP 2068338 B1 EP2068338 B1 EP 2068338B1
Authority
EP
European Patent Office
Prior art keywords
contact element
movable contact
circuit breaker
residual current
current circuit
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.)
Not-in-force
Application number
EP20080169084
Other languages
German (de)
English (en)
Other versions
EP2068338A3 (fr
EP2068338A2 (fr
Inventor
Hans-Jürgen Huber
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP2068338A2 publication Critical patent/EP2068338A2/fr
Publication of EP2068338A3 publication Critical patent/EP2068338A3/fr
Application granted granted Critical
Publication of EP2068338B1 publication Critical patent/EP2068338B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/502—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position the action of the contact pressure spring becoming active only after engagement of the contacts

Definitions

  • the present invention relates to a residual current circuit breaker, comprising a summation current transformer, an evaluation, at least a first movable contact element, which is acted upon by a force, at least one second contact element, which is electrically connectable to the at least one first contact element, a release mechanism for unlocking the at least one first movable contact element, and a control unit which is connected via a control line to the summation current transformer, and a test device, with a test resistor and a test button, for generating a defined fault current. Furthermore, the invention relates to a method for performing a self-test of a residual current circuit breaker.
  • Residual current circuit breakers can detect and disconnect ground fault currents when detecting an earth leakage current, and all current conductors connected to the residual current circuit breaker of a circuit to be protected. Residual current circuit breakers are connected between a power supply and a load to be supplied.
  • a test of the functionality of the residual current circuit breaker shall be carried out at certain intervals. It is checked whether the tripping function of the residual current circuit breaker is intact. The review is usually done by a user. For this purpose, this presses a test button integrated in the residual current circuit breaker of a test device. In this case, a defined fault current is generated in the residual current circuit breaker, which causes it to trigger.
  • a residual current circuit breaker is desirable, which independently checks the proper functioning of all its necessary for triggering components at regular intervals, without interrupting the circuit.
  • the DE 44 32 643 discloses a method for performing a self-test of a residual current circuit breaker, comprising a summation current transformer, an evaluation, at least a first movable contact element, which is acted upon by a force, at least one second movable contact element, which is electrically connectable to the at least one first contact element, wherein the at least a second movable contact element is acted upon by a force and fixed by limiting means in a starting position, a triggering mechanism for operating the at least one first movable contact element, as well as an integrated in a trigger control unit which is connected via a control line to the summation current transformer, and a Testing device, comprising a test resistor and a test button, comprising the steps of: a) actuating the test device by pressing the test button, and b) generating a defined residual current by the control unit via the control line.
  • the object of the invention is therefore to provide a structurally simple and inexpensive to manufacture residual current circuit breaker, the proper functioning of all its necessary to trigger components independently at regular intervals, without interrupting the or the hedged circuit (s). Furthermore, a simple and inexpensive feasible method for independent verification of the functioning of a residual current circuit breaker is to be created.
  • a residual current circuit breaker comprising a summation current transformer, evaluation electronics, at least one first movable contact element, which is acted upon by a force, at least one second contact element, which is electrically connectable to the at least one first contact element Tripping mechanism for unlocking the at least one first movable contact element, and a control unit which is connected via a control line to the summation current transformer, and a testing device, with a test resistor and a test button, for generating a defined fault current, wherein the at least one second contact element is movably mounted and subjected to a force to follow the movement of the at least one first movable contact element, that limiting means are provided to the movement of the at least one first movable contact element to limit, and that checking means are provided for detecting the movement of the at least one second movable contact element solved.
  • the gist of the invention is the use of at least one second movable contact element, i. the actual fixed contacts that can follow the movement of the at least one first movable contact element in the self-test of the residual current circuit breaker, and in the limitation of the movement of the at least one first movable contact element and thus also the at least one second movable contact element.
  • the at least one first movable contact element represents the known from the prior art movable contact
  • the at least one second movable contact element represents the actual fixed contact.
  • a fault current is generated and the at least one first movable contact element from a first position, ie the starting position, in a second defined position, moves.
  • This movement of the at least one first movable contact element is followed by the at least one second movable contact element, so that the electrical contact of both contact element and thus the circuit is not interrupted.
  • the at least one second movable contact element is acted upon by a force. If it is determined that the at least one second movable contact element has followed the movement of the at least one first movable contact element and the circuit is not interrupted, the elements required to trip the residual current circuit breaker are fully functional.
  • the functional activity of the residual current circuit breaker ie, the summation current transformer, the triggering mechanism, the transmitter and the contact elements themselves, checked. If the circuit is interrupted after applying the defined fault current, this is an indication that the fault current circuit breaker is defective.
  • runs in the residual current circuit breaker the same principle, as in the presence of a real fault current, only that the movement of the contact elements is limited. The restriction of the movement of the first and thus also of the second contact element is realized by the limiting means.
  • both the at least one first movable contact element and the at least one second movable contact element move over a certain distance.
  • the complete movement of the at least one first movable contact element is not possible in the self-test, whereby the circuit can be maintained upright. This is done by the fact that the at least one second movable contact element can follow the limited movement of the at least one first movable contact element by its movable mounting.
  • the at least one second movable contact element By checking the movement of the at least one second movable contact element, it can be established that the at least one first movable contact element must also have moved. That is, when the second contact element has moved to a predefined position, the first contact element must also have moved to a predefined position.
  • the triggering elements i.e., the summation current transformer, the tripping mechanism, the evaluation electronics and the corresponding connection lines. That is, based on the movement of the second movable contact element and the uninterrupted circuit, the checking means can draw conclusions about the functionality of the residual current circuit breaker.
  • a residual current circuit breaker in which a movably held Verklinkungsaku and a Heidelbergaktorik are provided for controlling the Verklinkungsaku, wherein the Verklinkungsech with the at least one first movable contact element and / or with the at least one second movable contact element can be brought into operative contact to the movement release the contact elements and / or restrict.
  • the latching unit represents the limiting means.
  • the movably held latching unit can be controlled via the switching actuator and these via the control unit.
  • the latching unit is designed such that it can prevent the movement of the at least one second movable contact element in one position. That is, in this situation, the residual-current circuit breaker is in its normal state.
  • the at least one second movable contact elements are fixed in the normal state of the residual current circuit breaker by the Verklinkungsech.
  • the switching mechanism unlocks the at least one first movable contact elements.
  • the at least one first movable contact elements are separated from the fixed at least one second movable contact element and the circuit interrupted.
  • the residual current circuit breaker does not differ from an ordinary residual current circuit breaker.
  • the Verklinkungsritt can release the movement of the at least one second movable contact element due to its configuration in a different position, and at the same time limit the movement of the at least one first movable contact element after a certain pivoting or rotation.
  • the Verklinkungsappel is preferably movably mounted on the residual current circuit breaker. By a shift or in particular a pivoting of the Verklinkungsaku this can control the movement of the first and the second contact element.
  • the latch unit is movable by the switching actuator, which is controlled by the control unit. In doing so, the switching actuator translates electronic signals from the control unit into mechanical motion, i. she moves the latching unit.
  • the latching unit of the residual current circuit breaker preferably has a ring-segment-shaped form.
  • the shape of a half ring segment is particularly advantageous.
  • the outer circumferential surface of a free end of the ring segment-shaped Verklinkungsappel fix the at least one second movable contact element.
  • the latching unit can release the at least one second movable contact element, so that it is held movably.
  • the latching unit When generating a predefined fault current, the latching unit is moved from the position in which it fixes the at least one second movable contact element into a second predefined position, in particular rotated or pivoted, so that the inner circumferential surface of the other free end of the ring segment-shaped latching unit controls the movement of the limited at least a first movable contact element. That is, the at least one first movable contact element, for example, rotated by a certain number of degrees be before it abuts against the inner circumferential surface of the ring segment-shaped Verklinkungsaku. The movement of the first contact element is thus limited by the shape of the Verklinkungsaku.
  • the at least one second movable contact element is acted upon by a force to follow the movement of the at least one first movable contact element.
  • the second movable contact element can remain in contact with the first moving contact element and the circuit can be kept upright, so that the load does not have to be disconnected from the power supply.
  • the functional test of the residual current circuit breaker can be carried out without affecting the downstream load.
  • the at least one first movable contact element is advantageously acted upon by a tensile force, in particular by a tension spring, while the at least one second movable contact element is acted upon by a compressive force, in particular by a compression spring.
  • the tension spring pulls the first contact element from its initial position in the predefined second position.
  • the compression spring permanently presses the second contact element against the first contact element, so that they remain in electrical contact.
  • the third spring element is preferably a compression spring, but may, depending on the point of application of the spring on the Verklinkungsaku, also be a tension spring.
  • the latching unit is designed such that it allows a movement of the at least one first movable contact element from a starting position to a second defined position. That is, the latch unit allows a predefined movement of the two contact elements due to the application of force by the spring elements.
  • the checking means may be arranged separately in the residual current circuit breaker. Particularly preferred is a residual current circuit breaker in which the checking means are part of the control unit.
  • the checking means evaluate the movement of at least the at least one second movable contact element.
  • the checking means can also evaluate the movement of the at least one first movable contact element. If the at least one second movable contact element has assumed a defined second position, ie traveled a predetermined distance, this is an indication that all the components which are required to trigger the residual current circuit breaker and thus to interrupt the circuit function. If the second contact element has not reached the predefined position, this is an indication that there is an error in the residual current circuit breaker.
  • the error in the summation current transformer, the transmitter, the release mechanism or in the contact elements themselves can be present. If the contacts of the contact elements welded together, the contact elements can not be moved, since a relative movement of the contact elements to each other is required without the contact between these breaks off.
  • the checking means of the residual current circuit breaker on a switching contact which is connected to the control unit and the second movable contact element. If the switching contact is open, this is, for example, an indication that the second movable contact element has reached the second predefined position and thus all components of the residual current circuit breaker required for tripping function. If the switch contact is closed, at least one component of the residual current circuit breaker has not worked. Whether the switching contact is opened or closed is determined by the checking means.
  • all contact elements each have a contact point, wherein in a closed circuit, the corresponding contact points of the contact elements are interconnected.
  • the contact points have a very conductive contact material.
  • a residual current circuit breaker in which an actuator is provided, via which the control unit can move the at least one first movable contact element and the at least one second movable contact element, is also particularly preferred. By the actuator, the control unit can move the contact elements after completion of the functional test of the residual current circuit breaker back to their original positions. After the return of the contact elements to their original positions, the latching unit is moved in such a way that it fixes the at least one second movable contact element in its initial position.
  • the residual current circuit breaker may have a plurality of latching units.
  • a residual current circuit breaker is preferred in which the evaluation is connected to the control unit. This makes it possible that during the self-test of the residual current circuit breaker this also a real fault current can determine.
  • the Verklinkungsaku is returned to its original position, wherein the movement of the at least one first movable contact element are no longer limited and this can thus be fully opened. That is, in the fully open position that is at least one first movable contact element has been so far pivoted or rotated that the at least one second movable contact element can no longer follow the first contact element and thereby the circuit is interrupted by the residual current circuit breaker.
  • the movement of the at least one second movable contact element can be limited, for example, by the second spring element.
  • the latter has a display device and / or an input device.
  • the display device and / or the input device are connected to the control unit of the residual current circuit breaker.
  • the display device for example, the state of the residual current circuit breaker can be displayed. For example: “Self-test successful", residual current circuit breaker ready “” Residual current circuit breaker defective ", etc.
  • the input device may have operating elements via which, for example, the automatic self-test of the residual current circuit breaker can be activated or inhibited.
  • the second movable contact element In the normal state, the second movable contact element is fixed by limiting means in an initial position. In the normal state, the first movable contact element is locked by the switching mechanism. Upon the occurrence of a real fault current, which is detected by the transmitter to the summation converter, the transmitter sends a signal to the switching mechanism and this unlocks the first movable contact element. This breaks the circuit and protects the load from damage. This operation corresponds to the function of an ordinary residual current circuit breaker.
  • the self-test residual current circuit breaker performs the following steps: At the beginning of the self-test Initially, the release of the movement of the second movable contact element by the control unit takes place. That is, the fixation of the second contact element is released so that it is free to move. In this case, the movement of the second contact element is prevented only by the first contact element.
  • the test device is actuated by pressing the test button. This can be done manually, but also fully automatically by the residual current circuit breaker.
  • the control unit After actuation of the test device, the control unit generates a defined fault current via the control line. This defined fault current causes the residual current device to trip.
  • the switching mechanism unlocks the at least one first movable contact element.
  • the first contact element is free to move.
  • the limiting means is positioned, which limit the movement of the at least one first movable contact element. After unlocking the first contact element moves due to the force acting on the contact element, from its initial position. That is, the at least one first contact element is so moved due to the application of force, usually pivoted or rotated until the movement is stopped by the limiting means.
  • the checking means of the residual current circuit breaker determine whether the at least one second movable contact element has followed the at least one first movable contact element and the at least two contact elements have remained electrically connected to one another. That is, the at least one second movable contact element can also pivot or twist. The at least one second movable contact element is also acted upon by a force which acts on the at least one second movable contact element so that it can follow the movement of the at least one first movable contact element. This is checked by the verification means.
  • the verification agent determines that the at least one second movable contact element has also been moved away from its starting position, over a certain predefined distance, so conclusions can be made on the functioning of the components of the residual current circuit breaker, which are required for the tripping when a fault current occurs.
  • the decisive factor is the extent to which the second contact element has moved away from its starting position. In the optimal case, the second contact element has followed the movement of the first contact element. The movement of the second contact element is then also stopped by the limitation of the movement of the first contact element. In this case, the two contact elements move relative to each other, but remain electrically connected to each other. So it may happen that, although the two contact elements remain connected to each other, but they are not or only slightly moved from their original positions away.
  • the operability of a residual current circuit breaker can be checked very easily, without the circuit must be broken.
  • the process is very easy to carry out.
  • the decisive change is the movable mounting of the second contact element and the limiting means which can influence both the movement of the first, as well as the second contact element.
  • the limiting means fix the second movable contact element in its initial position. Only in the case of the self-test, the limiting means is moved and releases the movement of the second contact element.
  • the two contact elements can be moved over a certain predefined distance, without interrupting the electrical contact between them.
  • the necessary for the determination of the fault current and the control of the limiting means components are already present in the residual current circuit breaker.
  • the checking means may be arranged separately in the residual current circuit breaker, but they may also be part of the existing control unit.
  • the limiting means has a latching unit.
  • the latching unit is moved by a switching actuator.
  • the Verklinkungsaku is preferably mounted pivotably or rotatably.
  • the latching unit has a semi-annular shape. A first free end of such a latching unit can fix the second contact element in its initial position.
  • the first free end releases the second contact element and the other free end of the latching unit is positioned such that it can limit the movement of the first contact element.
  • the other free end of the Verklinkungsaku is positioned such that the first contact element abuts against this end of the Verklinkungsaku and there remains due to the force acting on the second contact element.
  • the limitation of the movement of the first and thus also of the second contact element ensures that the two contact elements remain electrically connected to each other, so that the functional verification of the components that are required for the separation of the power interruption, can be checked without the power is interrupted.
  • the downstream load so to speak, gets nothing from the self-test of the residual current circuit breaker.
  • the at least one second movable contact element is pressed by the force of a second spring element in the direction of the at least one first movable contact element.
  • the application of force to the at least one first movable contact element and the at least one second movable contact element is advantageously carried out by spring elements. That is, the first contact element is preferably subjected to force by a tension spring, while the second contact element is preferably acted upon by a compression spring with a force.
  • the second contact element can follow the first contact element in a simple but effective manner, without the contact points of the contact elements being disconnected.
  • the first contact element is pivoted or twisted by the tension spring to the stop on the limiting means. That is, preferably, the latching unit limits the movement of the at least one first movable contact element.
  • the control unit returns the at least two movable contact elements to their initial positions by means of an actuating drive, in which the residual-current-operated circuit breaker is in the normal state.
  • the actuator exerts a force on the first movable contact element, so that it is moved back in the direction of its initial position.
  • the second movable contact element is also moved until it has reached its starting position.
  • both contact elements their starting positions have taken the Verklinkungsaku is moved so that it fixes the first contact element.
  • the movement of the Verklinkungsaku can be done by a fixed to the Verklinkungstechnik compression spring. That is, as soon as the Heidelbergaktorik no longer exerts force on the Verklinkungsaku, this is due to the spring force acting on it moved back to its original position in which it fixes the first contact element.
  • a method is characterized in that, upon detection of a real fault current, the latching unit is moved by the switching actuator, so that the complete opening of the at least one first movable contact element allows and thereby the at least one first movable contact element of the at least one second movable contact element is disconnected. That is, the residual current circuit breaker maintains its actual function even during the self-test, and continues to protect the load from a real fault current.
  • the limiting means in particular the Verklinkungsaku, moved so that this no longer limits the first contact element in its movement.
  • the first movable contact element is removed from the second movable contact element, disconnecting the electrical connection and thereby protecting the load from a fault current.
  • the second movable contact element can no longer follow this further movement of the first contact element.
  • the second spring element which is fixed to the second contact element, prevent further movement of the second contact element in the direction of the first contact element.
  • the residual current device automatically performs self-tests or function tests.
  • the residual current device can also be tested manually by pressing the test button become.
  • the test is automatically performed by the residual current circuit breaker without the need for external intervention.
  • the test can be repeated at regular or irregular intervals.
  • the result of the check can be displayed on a display device.
  • the current state of the residual current circuit breaker such as "self-test successful", “residual current device ready”, “faulty circuit breaker defective”, or the like, can be displayed on the display device.
  • the display device can perform an acoustic display in addition to the visual display, especially if an error was found.
  • Via an input device of the residual current circuit breaker can be further programmed.
  • operating elements can be provided, via which the control unit can be programmed.
  • the automatic self-test can be activated or disabled.
  • Preferred is a method in which the residual current circuit breaker is designed as described in accordance with the first aspect for carrying out the method.
  • Fig. 1 shows a block diagram of the residual current circuit breaker 30.
  • the basic structure is identical to a conventional residual current circuit breaker, consisting of a summation current transformer 18, an evaluation 12, a release mechanism 3, ie a switching mechanism, and the movable contact elements 1, also referred to as switching contacts.
  • a test button 14 and a test resistor 13 is provided, whereby a defined fault current can be generated, which triggers the residual current circuit breaker 30.
  • a control unit 11 which can generate one or different high fault currents via a control line 15. This can be constructed by an additional secondary winding on the summation current transformer or as a parallel connection to the test device 13, 14. So that the load side 20 remains connected to the power supply 19 during the self-test, the second contact elements 2 are designed such that they can follow the first movable contact elements 1.
  • the second movable contact elements 2 represent the core of the residual current circuit breaker 30.
  • the second movable contact elements 2 In the normal state, the second movable contact elements 2 by means of the limiting means 10, that is, the Verklinkungsech fixed, see Fig. 2 , In a tripping operation, the tripping mechanism 3 unlocks only the first movable contact elements 1, see Fig. 3 , The function is different not from an ordinary residual current device.
  • the latching unit 10 is released as the first step by the control unit 11 by means of a simple switching actuator 5, see Fig. 4 .
  • the control unit 11 generates a fault current via the control line 15, which must cause the residual current circuit breaker 30 to trip.
  • the second movable contact element 2 in this case follows the first movable contact element 1, whereby the circuit remains closed during the self-test.
  • the compression spring 8 ensures a sufficiently high contact pressure of the two contact elements 1, 2 to each other.
  • the latching unit 10 is configured such that it only allows the first movable contact element 1 to open as far as necessary in order to ensure the proper functioning of the residual current circuit breaker 30 when the second contact element is fixed.
  • the latching unit 10 of the residual current circuit breaker 30 preferably has a ring-segment-shaped form. In particular, the shape of a half ring segment is particularly advantageous. Thus, the outer circumferential surface of a free end of the ring-segment-shaped latching unit 10 can fix the at least one second movable contact element 2.
  • the latching unit 10 can release the at least one second movable contact element 2 so that it is movably held.
  • the latching unit 10 is moved from the position in which it fixes the at least one second movable contact element 2 into a second predefined position, in particular rotated or pivoted, that the inner circumferential surface of the ring segment-shaped latching unit 10 of the other free end of the Latching unit 10 limits the movement of the at least one first movable contact element 1. That is, the at least one first movable contact element 1, for example, can only be rotated by a certain number of degrees before it abuts against the inner circumferential surface of the ring segment-shaped latching unit 10.
  • the control unit 11 or the checking means of the control unit 11 can determine whether the first movable contact element 1 has moved in the self-test to the defined second position, see Fig. 5 , In the defined second position, the first movable contact element 1 bears against the inner lateral surface of the latching unit 10. This makes it possible to detect errors in the entire triggering chain, from the summation current transformer 18, via the evaluation electronics 12, to defects in the switching mechanism 3. A defect by welding the two contact elements 1, 2 is hereby detectable, since a relative movement of the contact elements 1, 2 is necessary for opening.
  • control unit 11 by means of an actuator 4 bring the first movable contact element 1 and the second movable contact element 2 back to their original positions.
  • the control unit 11 is additionally connected to the transmitter 12. During a self-test, a real fault current can thus be determined. In this case, the Verklinkungsaku 10 is brought by means of Druckaktorik 5 back to the original position, whereby the first movable contact element 1 can fully open and breaks the circuit.
  • a display device 16 may also be connected to the control unit 11, whereby the current state, eg "self-test successful", “device ready”, etc., can be displayed.
  • an input device 17 is conceivable, for example, to enable or disable the automatic self-test.
  • the actuator 4 is used to realize an automatic restart after a trip.
  • the inventive step is the use of movable second contact elements 2, which can follow the self-test of the movement of the first movable contact elements 1 in order to keep the circuit closed.
  • the residual current circuit breaker is a differential circuit breaker.

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Claims (18)

  1. Disjoncteur de protection à courant de défaut, comportant un convertisseur de courant de somme (18), une électronique d'évaluation (12), au moins un premier élément de contact mobile (1) auquel une force est appliquée par un premier élément élastique (7), au moins un deuxième élément de contact (2) qui peut être relié électriquement à l'au moins un premier élément de contact (1), un mécanisme de déclenchement (3) pour déverrouiller l'au moins un premier élément de contact mobile (1), ainsi qu'une unité de commande (11) qui est reliée au convertisseur de courant de somme (18) via une ligne de commande (15), et un dispositif de contrôle comportant une résistance de contrôle (13) et une touche de contrôle (14) pour générer un courant de défaut défini, caractérisé en ce que l'au moins un deuxième élément de contact (2) est logé mobile et se voit appliquer une force par un deuxième élément élastique (8) pour pouvoir suivre le mouvement de l'au moins un premier élément de contact mobile (1), en ce qu'est prévu un moyen de limitation qui se présente sous la forme d'une unité d'encliquetage (10) maintenue mobile, l'unité d'encliquetage (10) pouvant se voir appliquer une force par un troisième élément élastique (6) et pouvant être mise en contact actif avec l'au moins un premier élément de contact mobile (1) et/ou l'au moins un deuxième élément de contact mobile (2) pour autoriser et/ou limiter le mouvement des éléments de contact (1, 2) et en ce que sont prévus des moyens de vérification pour constater le mouvement de l'au moins un deuxième élément de contact mobile, les moyens de vérification faisant partie de l'unité de commande (11) et comportant un contact de commutation (9) qui est relié à l'unité de commande (11) et à l'au moins un deuxième élément de contact mobile (2).
  2. Disjoncteur de protection à courant de défaut selon la revendication 1, caractérisé en ce qu'est prévu un système d'actionneurs de commutation (5) pour commander l'unité d'encliquetage (10).
  3. Disjoncteur de protection à courant de défaut selon la revendication 2, caractérisé en ce que l'unité d'encliquetage (10) est logée mobile sur le disjoncteur de protection à courant de défaut.
  4. Disjoncteur de protection à courant de défaut selon l'une des revendications 2 ou 3, caractérisé en ce que l'unité d'encliquetage (10) présente une forme de segment annulaire.
  5. Disjoncteur de protection à courant de défaut selon l'une des revendications 2 à 4, caractérisé en ce que le deuxième élément élastique (8) et le troisième élément élastique (6) sont un ressort de compression et le premier élément élastique (7), un ressort de traction.
  6. Disjoncteur de protection à courant de défaut selon l'une des revendications 1 à 5, caractérisé en ce que l'unité d'encliquetage (10) est conçue de manière à permettre le passage de l'au moins un premier élément de contact mobile (1) d'une position de départ à une deuxième position définie.
  7. Disjoncteur de protection à courant de défaut selon l'une des revendications 1 à 6, caractérisé en ce que l'au moins un premier élément de contact mobile (1) et l'au moins un deuxième élément de contact mobile (2) présentent respectivement un point de contact (21, 22).
  8. Disjoncteur de protection à courant de défaut selon l'une des revendications 1 à 7, caractérisé en ce qu'est prévu un actuateur (4) via lequel l'unité de commande (11) peut déplacer l'au moins un premier élément de contact mobile (1) et l'au moins un deuxième élément de contact mobile (2).
  9. Disjoncteur de protection à courant de défaut selon l'une des revendications 1 à 8, caractérisé en ce que l'électronique d'évaluation (12) est reliée à l'unité de commande (11).
  10. Disjoncteur de protection à courant de défaut selon l'une des revendications 1 à 9, caractérisé en ce que le disjoncteur de protection à courant de défaut comporte un dispositif d'affichage (16) et/ou un dispositif de saisie (17).
  11. Procédé d'exécution d'un auto-essai d'un disjoncteur de protection à courant de défaut comportant un convertisseur de courant de somme (18), une électronique d'évaluation (12), au moins un premier élément de contact mobile (1) auquel une force est appliquée, au moins un deuxième élément de contact mobile (2) qui peut être relié électriquement à l'au moins un premier élément de contact (1), l'au moins un deuxième élément de contact mobile (2) se voyant appliquer une force et étant fixé dans une position de départ par des moyens de limitation, un mécanisme de déclenchement (3) pour actionner l'au moins un premier élément de contact mobile (1), ainsi qu'une unité de commande (11) qui est reliée au convertisseur de courant de somme (18) par l'intermédiaire d'une ligne de commande (15), et un dispositif de contrôle comportant une résistance de contrôle (13) et une touche de contrôle (14), caractérisé par les étapes suivantes :
    a) autorisation du mouvement du deuxième élément de contact (2) par l'unité de commande (11) ;
    b) actionnement du dispositif de contrôle (13, 14) par appui sur la touche de contrôle (14) ;
    c) génération, par l'unité de commande (11), via la ligne de commande (15), d'un courant de défaut défini ;
    d) déverrouillage de l'au moins un premier élément de contact mobile (1) par le mécanisme de commutation (3) à la constatation d'un courant de défaut par l'électronique d'évaluation (12) qui surveille le convertisseur de courant de somme (18) ;
    e) positionnement des moyens de limitation (10) pour limiter le mouvement de l'au moins un premier élément de contact mobile ;
    f) constatation, par des moyens de vérification, si l'au moins un deuxième élément de contact mobile (2) a suivi l'au moins un premier élément de contact mobile (1) et si les au moins deux éléments de contact (1, 2) sont restés reliés électriquement entre eux.
  12. Procédé selon la revendication 11, caractérisé en ce que le mouvement de l'au moins un deuxième élément de contact mobile (2) est autorisé par le mouvement d'une unité d'encliquetage (10) qui fixe l'au moins un deuxième élément de contact mobile (2) dans une position de départ, l'unité d'encliquetage (10) étant déplacée par un système d'actionneurs de commutation (5).
  13. Procédé selon la revendication 11 ou 12, caractérisé en ce que l'au moins un deuxième élément de contact mobile (2) est poussé par la force d'un deuxième élément élastique (8) en direction de l'au moins un premier élément de contact mobile (1).
  14. Procédé selon l'une des revendications 12 à 13, caractérisé en ce que l'unité d'encliquetage (10) limite le mouvement de l'au moins un premier élément de contact mobile (1).
  15. Procédé selon l'une des revendications 11 à 14, caractérisé en ce que, après la réalisation de l'auto-essai, l'unité de commande (11) met, au moyen d'un entraînement de réglage (4), les au moins deux éléments de contact mobiles (1, 2) dans leur position de départ dans laquelle le disjoncteur de protection à courant de défaut est dans son état normal.
  16. Procédé selon l'une des revendications 12 à 15, caractérisé en ce que, à la constatation d'un courant de défaut réel, l'unité d'encliquetage (10) est déplacée par le système d'actionneurs de commutation (5), de sorte que l'ouverture complète de l'au moins un premier élément de contact mobile (1) est rendue possible et que l'au moins un premier élément de contact mobile (1) est ainsi séparé de l'au moins un deuxième élément de contact mobile (2).
  17. Procédé selon l'une des revendications 11 à 16, caractérisé en ce que les étapes du procédé sont exécutées de manière répétée et automatique selon un procédé selon l'une des revendications 15 à 20.
  18. Procédé selon l'une des revendications 11 à 17, caractérisé en ce que, pour exécuter le procédé, le disjoncteur de protection à courant de défaut est réalisé selon l'une des revendications 1 à 10.
EP20080169084 2007-12-07 2008-11-14 Disjoncteur de protection à courant de défaut et procédé d'exécution d'un contrôle automatique d'un disjoncteur de protection à courant de défaut Not-in-force EP2068338B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007058989A DE102007058989A1 (de) 2007-12-07 2007-12-07 Fehlerstromschutzschalter und Verfahren zum Durchführen eines Selbsttestes eines Fehlerstromschutzschalters

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EP2068338A2 EP2068338A2 (fr) 2009-06-10
EP2068338A3 EP2068338A3 (fr) 2013-03-06
EP2068338B1 true EP2068338B1 (fr) 2014-09-17

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DE (1) DE102007058989A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20120884A1 (it) * 2012-05-22 2013-11-23 Gewiss Spa Interruttore differenziale con dispositivo di autotest
CN112834918B (zh) * 2020-12-21 2023-05-05 深圳供电局有限公司 开关故障检测方法和开关故障检测装置
CN114460457B (zh) * 2022-04-13 2022-06-14 广东电网有限责任公司江门供电局 一种基于阻抗识别的刀闸分合到位非同源判别方法及装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1123751B (de) * 1960-04-09 1962-02-15 Schutzapp Ges Paris & Co M B H Selbstschalter, insbesondere Schutzschalter
DE4432643B4 (de) * 1994-09-14 2005-12-01 Aeg Niederspannungstechnik Gmbh & Co Kg Kontaktanordnung für einen Fehlerstromschutzschalter
JP3559165B2 (ja) * 1998-05-25 2004-08-25 三菱電機株式会社 漏電遮断器
ATE359594T1 (de) 2004-02-06 2007-05-15 Gewiss Spa Sich selbst prüfender und wiedereinschaltender differenzstromschutzschalter

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Publication number Publication date
EP2068338A3 (fr) 2013-03-06
DE102007058989A1 (de) 2009-06-18
EP2068338A2 (fr) 2009-06-10

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