EP0103167B1 - Interrupteur avec déclenchement par un courant de fuite - Google Patents

Interrupteur avec déclenchement par un courant de fuite Download PDF

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Publication number
EP0103167B1
EP0103167B1 EP19830107884 EP83107884A EP0103167B1 EP 0103167 B1 EP0103167 B1 EP 0103167B1 EP 19830107884 EP19830107884 EP 19830107884 EP 83107884 A EP83107884 A EP 83107884A EP 0103167 B1 EP0103167 B1 EP 0103167B1
Authority
EP
European Patent Office
Prior art keywords
tripping
neutral conductor
conductor
circuit breaker
switching
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
Application number
EP19830107884
Other languages
German (de)
English (en)
Other versions
EP0103167A1 (fr
Inventor
Gottfried Prof.-Dr. Biegelmeier
G.R.C. Mcdowell
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.)
BBC Brown Boveri AG Germany
Original Assignee
Brown Boveri und Cie AG Germany
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AT314382A external-priority patent/AT374969B/de
Priority claimed from AT64083A external-priority patent/AT378444B/de
Application filed by Brown Boveri und Cie AG Germany filed Critical Brown Boveri und Cie AG Germany
Publication of EP0103167A1 publication Critical patent/EP0103167A1/fr
Application granted granted Critical
Publication of EP0103167B1 publication Critical patent/EP0103167B1/fr
Expired 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
    • H01H71/002—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00 with provision for switching the neutral conductor
    • 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
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
    • H01H83/226—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with differential transformer
    • 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
    • H01H71/002—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00 with provision for switching the neutral conductor
    • H01H2071/004—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00 with provision for switching the neutral conductor with a tripping or current sensing device in the neutral wire, e.g. for third harmonics in a three fase system
    • 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
    • H01H2083/045—Auxiliary switch opening testing circuit in synchronism with the main circuit

Definitions

  • the invention relates to a circuit breaker according to the preamble of claim 1.
  • DE-B-1 169 015 such a switch, in which a component is attached to a component designed as an LS-Schlater, transverse to the connecting line of the terminals, which contains the RCD.
  • a transmission element is provided between the two components for the FI release to act on the switching mechanism.
  • DE-B-1 563 827 also uses a residual current circuit breaker for a combined residual current circuit breaker, to which independent switches, in particular circuit breakers, are attached, the switch locks of which are coupled to one another in a suitable manner.
  • the magnetic release in the switching alignment of the neutral conductor and the associated switching lock have essentially the same components as the magnetic release and the switching locks in the switching alignment of the phase conductors.
  • the release coil of the magnetic release in the neutral circuit with the appropriate number of turns is connected to the mains via the electronic circuit and actuates the magnetic release when an FI flows.
  • the current path of the neutral conductor is uninterrupted via the summation current transformer to the connection terminals. It is thereby achieved that practically the same components can be used for RCD tripping, with the exception of the tripping coil, as for tripping overcurrent in the switching lines of the phase conductors. This, however, is extremely economical and, in terms of reliability, that is what triggers residual current same level as usual with overcurrent tripping.
  • every residual current circuit breaker has a test device, when actuated in the switch via a current limiting resistor, an artificial residual current flows, which triggers the circuit breaker.
  • This FI is always higher than the tripping nominal fault current of the circuit breaker.
  • the relevant regulations usually stipulate that when the test device is actuated, the flooding resulting from the test current in the summation current transformer of the circuit breaker is canceled.
  • the current path of the neutral conductor, together with the current paths of the phase conductors, is routed via the summation current transformer, but is not routed via the break contact, i. H. It directly connects the two terminals for the mains and consumer neutral conductor connections.
  • the break contact in the neutral circuit is used instead as an auxiliary contact for switching off the mains voltage supply for the test circuit and the electronic amplification device.
  • the invention not only reduces the various components required for such a circuit breaker, but also brings the same tripping reliability as was previously customary with circuit breakers.
  • the fact that the same switch components are used for RCD tripping as for overcurrent tripping results in a robust, reliable and economical switching device, which should be of great importance in the future, especially for the protection of socket circuits.
  • one or both neutral conductor terminals be designed so that the connection to the neutral conductor can be easily and visibly disconnected using a tool (screwdriver) without moving it (neutral conductor disconnect terminal).
  • Figure 1 shows the elevation of a closed circuit breaker, consisting of juxtaposed components (switch alignments 1) for the phase conductor L1 with this associated terminals 13a and 14a and two for the neutral conductor N with this associated terminals 13b and 14b.
  • the actuator of the circuit breaker consists of coupled together Shift knobs 12a and 12b. The coupling of the switch locks inside the circuit breaker is not visible.
  • the circuit breaker which acts as a circuit breaker with FI- Tripping is designed and acts as a test device 15, with which a test circuit is closed when pressing a push button 15a, in which the test error current flows. Such a test device as such is known.
  • FIG. 2 shows the interior of the switching alignment for the phase conductor L1.
  • a connecting conductor 20 runs from the connection terminal 13a through a first opening 21 in the housing side wall of the circuit breaker, through which it leads to the FI component (see below). From there it is reinserted into the circuit breaker through a second opening 22 and is connected to one end of a thermal overcurrent release 4. At the other end of the overcurrent release 4 there is a connecting line 23 which leads to the coil of a magnetic release 3a. Its end is electrically connected via a further connecting line 24 to a contact lever 5, the free end of which has a movable contact piece 8 which cooperates with a fixed contact piece 9 fastened to an arc guide rail 25, which leads to the connecting terminal 14a.
  • the contact point 8/9 is assigned an arc quenching plate pact 10.
  • a switch lock which consists of a rotatably mounted double arm lever 11 which is articulated to a knee joint lever arrangement 26 at one end; In the area of the knee of the knee joint lever arrangement 26, a connecting rod 27 is provided towards the switching toggle 12a. The other end of the knee joint lever arrangement 26 is articulated on the contact lever 5.
  • the double-arm lever 11 interacts with a latch lever 28 such that the double-arm lever is supported against the latch lever 28.
  • a transmission lever 29 the movement of the bimetallic or thermal overcurrent release 4 is transmitted to the latch lever 28, so that under the pressure of a contact opening spring 30, when the latch lever 28 is pivoted, the lock is released clockwise, so that the switching mechanism locks the movable contact lever 5 can spend in the off position.
  • the latch lever 28 is additionally actuated by the magnetic trigger 3a in such a way that the armature 6 is knocked out to the left of the magnetic trigger 3a when a short-circuit current occurs and thus sets the latch lever 28 in rotation.
  • the armature 6 of the quick release or the magnetic release 3a is additionally connected to the movable contact lever 5 via a mechanical coupling 7, which supports the opening movement of this contact lever. The arc is thereby driven quickly into the arc extinguishing sheet pack 10 by the movable contact lever 5 and the fixed contact piece 9 cooperating therewith.
  • a test line 31 is also connected to the arc guide rail 25 and has a contact point 32 which can be bridged by means of the test device 15.
  • the test line 31 is led through a third opening 33 in the housing to the residual current component (see further below).
  • FIG. 3 shows the interior of the switching alignment for the neutral conductor N, which is led through the summation current transformer 16, but does not end at the movable contact lever, but is connected to the connection terminal 14b.
  • the neutral conductor N is electrically and galvanically connected via an intermediate line 40 both to a line branch 41 and to a line branch 42, which line branch is introduced into the circuit breaker component via openings, which are not numbered in more detail, and contains the test device 15 there.
  • the test device is connected to the fixed contact piece 9 via a conductor 43 and to the amplifier 17 via an intermediate piece 44.
  • the phase conductor 20 is connected to the movable contact lever 5 via a connecting conductor 20a.
  • the tripping coil of the electromagnetic quick release 3b is no longer in the main circuit, but is connected to the mains voltage when a fault current flows through the amplifier, as a result of which the circuit breaker triggers with the aid of the mains energy.
  • the main current path of the neutral conductor thus connects the terminals directly and leads via the summation current transformer.
  • the power supply line from the test device and amplifier goes from the phase conductor to the break contact, the spring 30 providing the necessary contact pressure.
  • FIG. 4 shows the circuit arrangement of the component according to FIG. 3 including test device 15 according to FIG. 2.
  • the connection terminals of the phase conductor are 14a and 13a and those of the neutral conductor 14b and 13b.
  • the terminals 14a and 14b are connected to the network and the terminals 13a and 13b are connected to the consumer.
  • the supply line leads from the phase conductor L1 to the test device 15 via the contact point 8a19a, which opens when triggered together with the main contact point 8/9. This makes it irrelevant whether mains voltage is present at the K-terminal pairs 14a114b or at the terminal pairs 13a / 13b. In any case, the line to the test device 15 is opened by the contact point 8a / 9a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)

Claims (3)

1. Disjoncteur de protection de ligne, à déclenchement par courant de défaut, constitué par des composants agencés côte à côte, qui sont réalisés en tant que modules (1, 2), dans lesquels sont agencées les voies de passage des conducteurs de phase (L1) et du conducteur de neutre (N), et qui comportent des dispositifs de manoeuvre (26) mutuellement couplés comprenant des déclencheurs thermiques (4) et magnétiques (3a, 3b), seuls le déclencheur magnétique (3b) et des composants du dispositif de déclenchement, identiques aux composants correspondants dans les modules (1) des conducteurs de phase (L1), étant agencés dans le module (2) du conducteur de neutre (N) qui ne comporte pas de déclencheur thermique (4), le trajet de courant du conducteur de neutre (N) entre les bornes de raccordement (13b, 14b) du module (2) du conducteur de neutre (N) passant par le transformateur différentiel, lequel englobe aussi les conducteurs de phase (L1 caractérisé par le fait qu'un dispositif amplificateur électronique (17) dépendant de la tension du réseau est agencé dans le module (2) du conducteur de neutre (N), par le fait que la bobine de déclenchement du déclencheur magnétique (3b) agencée dans le module (2) du conducteur de neutre (N) est reliée au réseau par le dispositif amplificateur (17) lors du passage d'un courant de défaut dans le transformateur différentiel, ce qui a pour effet que le déclencheur magnétique (3b) est actionné par de l'énergie provenant du réseau, par le fait que le conducteur de neutre (N), entre ses bornes de raccordement (13b, 14b) passe par le transformateur différentiel (16) sans être interrompu, et par le fait que le dispositif amplificateur (17) et le dispositif de contrôle (15) sont reliés à l'un des conducteurs de phase (L1) au moyen d'une ligne de liaison (20a), par l'intermédiaire d'un contact interrupteur (8a, 9a) qui, par sa construction, correspond aux contacts interrupteurs (8, 9) des conducteurs de phase (L1).
2. Disjoncteur selon revendication 1, caractérisé par le fait que ladite ligne de liaison (20a) est raccordée audit conducteur de phase (L1) entre le contact interrupteur (8, 9) de ce conducteur de phase (L1) et le transformateur différentiel.
3. Disjoncteur selon revendication 1 ou 2, caractérisé par le fait que les bornes (13b, 14b) pour le raccordement du conducteur de neutre sont aménagées de manière qu'il soit possible, au moyen d'un outil (tournevis), d'interrompre, de manière facilement observable, la connexion au conducteur de neutre (borne à sectionnement de conducteur de neutre) sans déplacer celui-ci.
EP19830107884 1982-08-19 1983-08-10 Interrupteur avec déclenchement par un courant de fuite Expired EP0103167B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT3143/82 1982-08-19
AT314382A AT374969B (de) 1982-08-19 1982-08-19 Leitungsschutzschalter mit fehlerstromausloesung
AT640/83 1983-02-24
AT64083A AT378444B (de) 1983-02-24 1983-02-24 Leitungsschutzschalter mit durchgefuehrtem neutralleiter und fehlerstromausloesung

Publications (2)

Publication Number Publication Date
EP0103167A1 EP0103167A1 (fr) 1984-03-21
EP0103167B1 true EP0103167B1 (fr) 1987-11-11

Family

ID=25593433

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830107884 Expired EP0103167B1 (fr) 1982-08-19 1983-08-10 Interrupteur avec déclenchement par un courant de fuite

Country Status (2)

Country Link
EP (1) EP0103167B1 (fr)
DE (1) DE3374487D1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3412273A1 (de) * 1984-04-02 1985-10-10 Heinrich Kopp Gmbh & Co Kg, 8756 Kahl Leitungsschutzschalter mit differenzstromausloesung
FR2578093B1 (fr) * 1985-02-27 1987-03-06 Merlin Gerin Disjoncteur differentiel unipolaire et neutre
FR2596916B1 (fr) * 1986-04-04 1988-06-10 Telemecanique Electrique Disjoncteur bipolaire a ouverture automatique ou manuelle avec electro-aimant bistable et noyau percuteur magnetisable
DE8633276U1 (de) * 1986-12-12 1991-05-02 Asea Brown Boveri AG, 6800 Mannheim Schutzschalterkombination
FR2662017B1 (fr) * 1990-05-10 1996-07-26 Merlin Gerin Disjoncteur differentiel unipolaire et neutre.
FR2715517B1 (fr) * 1994-01-26 1996-03-22 Merlin Gerin Bloc déclencheur différentiel.
DE4413418A1 (de) * 1994-04-18 1995-10-19 Abb Patent Gmbh Schutzschalter mit einem Leitungsschutzschalter und einem daran anbaubaren Fehlerstrombauteil
ATE356421T1 (de) * 2000-06-14 2007-03-15 Siemens Ag Mehrpoliger schutzschalter
ITMI20080329U1 (it) * 2008-10-10 2010-04-11 Abb Spa Interruttore automatico bipolare per applicazioni di bassa tensione
CN104183434B (zh) * 2014-07-16 2016-01-13 浙江天正电气股份有限公司 一种具有反接线结构的漏电断路器
DE202014105758U1 (de) * 2014-11-28 2015-12-03 Abb Schweiz Ag Kombinierter Leitungs- und Fehlerstromschutzschalter
CN114156702B (zh) * 2021-11-26 2023-08-25 国网辽宁省电力有限公司大连供电公司 一种零线断线保护式插排

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE877165C (de) * 1951-11-01 1953-05-21 Felten & Guilleaume Carlswerk Aus Sockel und Oberteil bestehender Schutzschalter
DE1169015B (de) * 1962-09-28 1964-04-30 Siemens Ag Elektrische Schutzschalter mit UEberstrom-, Kurzschluss- und Fehlerstromausloeser
GB1107879A (en) * 1964-04-17 1968-03-27 J A Crabtree Proprietary Ltd Improvements in or relating to earth leakage protection devices
AT317347B (de) * 1972-04-26 1974-08-26 Felten & Guilleaume Ag Oester Fehlerstromschutzschalter mit mechanischer Verriegelung der Prüfeinrichtung
DE2618288C3 (de) * 1976-04-27 1980-09-18 Brown, Boveri & Cie Ag, 6800 Mannheim Installations-Selbstschalter
DE3136412A1 (de) * 1981-09-14 1983-03-24 Siemens AG, 1000 Berlin und 8000 München Kombinierter fehlerstromschutz- und leitungsschutzschalter

Also Published As

Publication number Publication date
DE3374487D1 (en) 1987-12-17
EP0103167A1 (fr) 1984-03-21

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