EP0611224B1 - Differentialschutzeinheit mit auf Funktion testbarer Untereinheit - Google Patents

Differentialschutzeinheit mit auf Funktion testbarer Untereinheit Download PDF

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Publication number
EP0611224B1
EP0611224B1 EP19940420024 EP94420024A EP0611224B1 EP 0611224 B1 EP0611224 B1 EP 0611224B1 EP 19940420024 EP19940420024 EP 19940420024 EP 94420024 A EP94420024 A EP 94420024A EP 0611224 B1 EP0611224 B1 EP 0611224B1
Authority
EP
European Patent Office
Prior art keywords
differential protection
assembly
coil
protection unit
differential
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
EP19940420024
Other languages
English (en)
French (fr)
Other versions
EP0611224A1 (de
Inventor
Robert Cros
Bernard Olivier
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.)
Schneider Electric SE
Original Assignee
Schneider Electric SE
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 Schneider Electric SE filed Critical Schneider Electric SE
Publication of EP0611224A1 publication Critical patent/EP0611224A1/de
Application granted granted Critical
Publication of EP0611224B1 publication Critical patent/EP0611224B1/de
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
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
    • H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H2071/0242—Assembling parts of a circuit breaker by using snap mounting techniques
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0221—Majority of parts mounted on central frame or wall

Definitions

  • the present invention relates generally a differential protection block which is used usually in combination with a circuit breaker multipolar.
  • a circuit breaker multipolar and a differential protection block constitutes what is commonly called a circuit breaker differential.
  • a classic differential protection block generally includes a housing in which are enclosed the various mechanical, electrical elements and electronics necessary for its operation.
  • a connection assembly constituting electrical conduction, one channel being provided for each pole of the circuit breaker, a coil toroid intended to be mounted around said electrical conduction paths for detect a differential current and a mechanism disjunction command intended to command an action of circuit breaker in the associated multipole circuit breaker said differential protection block, this command taking place in response to an electrical signal produced in said coil torus.
  • we can further include a number of other elements such an electronic control card, a card power, etc.
  • housings which are closed by means of non-removable devices for example rivets, a bonding, hot deformation, etc.
  • dismantling of the defective differential protection unit is impossible even for the sole purpose of identifying the source of the malfunction.
  • An object of the present invention is to offer a differential protection block designed from so that we can test before incorporation active elements of said protection block differential in the camera body.
  • Another object of the present invention consists in offer such a differential protection block also making it possible to easily isolate the electronic parts contained in the block of earth leakage protection before testing dielectric on an electrical panel containing such differential protection blocks.
  • the invention therefore relates in particular to a block differential protection can be associated with a circuit breaker multipolar to constitute together a circuit breaker differential, this differential protection block comprising a connection assembly constituting electrical conduction paths for the different poles of the multipole circuit breaker, a coil toroid intended for be mounted around said electrical conduction paths to detect a differential current and a disjunction command intended to command an action of circuit breaker in the multipole circuit breaker in response to an electrical signal produced by said coil torus.
  • the differential protection block according to the invention is characterized in that it further comprises a frame on which said said are fixed active elements together forming a subset rigid functional, said chassis being constituted by a first molded plastic chassis part and by a second piece of plastic frame molded can be coupled to the first part of the chassis, from where results that said functional subset can be connected to the residual current device in order to be able perform a functional test of the functional subset while being able to access at least some of said active elements, said functional subset being then locked in said housing when said test functional deemed it functionally satisfactory.
  • said first and second chassis parts together form, in coupled position: an envelope substantially surrounding completely a coil torus; a partitioned passage located in the center of the coil torus and intended to pass to the through said electrical conduction paths; a insulating support for said conduction paths electric; and a support to dispose externally said disjunction control mechanism.
  • the block further comprises at least one card electronic can be mounted externally on said chassis in order to control the operation of said disjunction control mechanism in response to a electrical signal produced by the coil toroid.
  • said upper half-housing comprises a window located above said electronic card included inside and a connection cover is provided which forms a hood and which supports on its face downwards of the connection contacts, hence it follows that, by fixing the connection cover on an upper face of the upper half-housing, the connection cover hides the window and simultaneously connection cover connection contacts come automatically establish electrical connections between the electronic card and other active parts contained in the case and, conversely, when remove the connection cover, the electronic card is completely disconnected, allowing you to dielectric test of the differential protection block without risk of damaging the electronic card.
  • Figure 1 illustrates the operating principle of a differential protection block in this invention.
  • the protection block differential is provided for four poles.
  • the parts included in the block are in number corresponding to this number of poles.
  • the block differential protection has four ways of current 1, 2, 3, 4 in which the currents pass electrics of the four poles, during operation normal of the device.
  • Each current path can be constituted by a metallic structure, for example in copper, which has a terminal at each end input 5 and an output terminal 6 and in its part central a piece of electrical conduction 7.
  • a torus magnetic 8 is arranged so as to surround simultaneously the four pieces of electrical conduction 7.
  • the electrical circuit has an anomaly which is that part of the electric current at least one of the poles is derived so as to pass through example to earth, the sum of the electric currents which circulate simultaneously through the four pieces of electrical conduction 7 is no longer equal to zero.
  • a coil 9 wound around the magnetic core 8 then makes appear at its connection wires 10, 11 a potential difference or an electric current when the sum of electrical currents flowing through the four pieces of electrical conduction 7 is not equal to zero.
  • the connecting wires 10 and 11 of the coil 9 are connected to an electronic card 12 which is intended to detect the appearance of a certain electrical voltage or a certain electrical current to coil 9 terminals so as to send a signal electric designed to control a trip of a mechanism 13 designed to cause the disjunction of the multipole circuit breaker D (figure 2) connected or coupled to the differential protection block.
  • Such a differential protection block is good known from the prior art and it presents itself in a way general in the form of an insulating housing which contains all the parts making up the device.
  • FIG 3 the general external forms of the trigger mechanism 13 mentioned above, the trigger mechanism 13 forming part of the parts included in the housing 14 of the protection block differential.
  • FIG. 4 represents, in exploded perspective, the essential elements that constitute the block of differential protection.
  • This protective block differential is generally made up of a functional subset 16 which includes a certain number of parts which we will describe later but which have the essential characteristic of power be assembled to form a single whole functional, i.e. a single set that can function.
  • the functional sub-assembly 16 is intended to be enclosed in the housing 14, which is constituted by a 14A lower half-case and one upper half-case 14B which are made of insulating plastic and which are intended to mate so as to constitute the box 14 inside which the sub-assembly is enclosed functional 16.
  • the housing 14 can, when its two parts are assembled, present a shape general external substantially parallelepiped.
  • the block differential protection also includes a connection cover 18 whose structure and function will be described below.
  • the functional sub-assembly 16 is constituted by a frame 20 in and around which are fixed respectively the connection assembly 22, the toroid at coil 30, the electronic card 32 and the mechanism trigger 34. More precisely, the coil toroid 30 is arranged inside the chassis 20 and the others elements 22, 32 and 34 are mounted outside the chassis 20.
  • the differential protection block consists of a functional subset which, as its name suggests, contains all the elements essential to operation, and a housing 14 which encloses the sub-assembly functional 16.
  • the chassis 20 is shown in detail in FIGS. 6 and 7.
  • the chassis 20 consists of two independent chassis parts 20A and 20B which have some mirror symmetry with respect to to each other and which are intended to mate one to the other.
  • the two chassis parts 20A and 20B are each made in one plastic part molded electrically insulating.
  • Frame part 20A generally takes the form of a vertical wall 36 and the chassis part 20B presents itself similarly very generally in the form of a vertical wall 38.
  • the two vertical walls 36 and 38 are substantially parallel to each other when the two chassis parts 20A and 20B are mated.
  • the envelope walls 42, 44 (only the walls of room 20B are visible on the figure) which extend perpendicular to the wall respective vertical 36 or 38.
  • the chassis part 20B we discern in more detail all of the walls 42 and 44, although similar walls are provided on the chassis part 20A.
  • the wall 42 constitutes a substantially cylindrical outer shell and the wall 44 constitutes an envelope substantially internal cylindrical. Therefore, the space separating the outer wall 42 and the inner wall 44 is a space substantially annular which constitutes a housing for the coil toroid 30. A similar annular space is arranged in the same way on the chassis part 20A well that it is not visible in Figure 6.
  • the two annular housings form only one housing annular whose overall width is slightly greater than the width of the coil toroid 30. It results from that only to start assembling or mounting the subassembly functional 16, we start by housing the torus at coil 30 in the annular housing limited by the walls 42 and 44, then we couple the two pieces of chassis 20A and 20B so as to completely enclose the coil toroid 30.
  • the chassis 20 then takes the form which is shown in Figure 7.
  • the part at the center of annular wall 44 is hollowed out and forms a cross passage. More precisely, this hollowed out part central includes four partition walls 46 which extend along an axis 48 which is perpendicular to the vertical wall 38.
  • the partition walls 46 share in four passages the cross section of the part hollowed out central.
  • the four pieces of electrical conduction 26 ( Figure 5) can pass through part by part respectively the four passages 50 which are separated from each other by the four walls of partition 46.
  • similar symmetrical shapes the shapes of elements 42, 44, 46 and 50 are provided on chassis part 20A (these forms of part 20A not visible in Figure 6).
  • the assembly After having housed the coil toroid 30 between the cylindrical walls 42 and 44 and after coupling the two chassis parts 20A and 20B, the assembly is mounted of connections 22 on the chassis 20. To do this mounting, we mount each of the four conduction channels electrical (24, 26, 28) on the chassis 20. The mounting of an electrical conduction path is carried out from the next way. We fix a conduction piece electric 26 radially at one end 52 (see figure 5) of the input terminal 24, then we go up the assembly formed by elements 24, 26 and 52 on the part of frame 20A so that the part of electrical conduction 26 runs right through one of the housings 50 and that the input terminal 24 comes position against positioning surfaces adapted on the outside of the vertical wall 36 of chassis part 20A.
  • This electronic card 32 can come position itself above the frame 20 coming from snap onto snap-in means and appropriate positioning 56 (see figure 7).
  • the functional sub-assembly 16 includes all the elements mechanical, electrical and electronic that allow its operation. It follows from this that it is then possible to connect input terminals 24 and output terminals 28 respectively to terminals of the multipole circuit breaker D and a electrical circuit (not shown) simulating a charge electric. We can then, in a classic way, act on the electrical charge so as to perform a test functional of the functional subset 16 as well connected to a multipole circuit breaker.
  • the coil toroid 30 as shown in the figure 5 constitutes a sub-assembly which presents in itself certain characteristics which will be described now.
  • the coil torus 30 has a shape general external of a torus, as we can see on the Figure 5, which is laterally attached a part in protuberance 58 which allows the passage of the output wires of the toroid coil so that these leads can be connected to the electronic card 32.
  • this sub-assembly forming the torus coil 30 has a specific structure which is particularly advantageous in the context of its use in functional sub-assembly 16 according to the present invention.
  • the coil toroid 30 is made up, as shown in Figure 8, by a torus in magnetic material 60, by two half shells of insulation 62A, 62B which surround laterally of each side of the torus 60, by a winding 64 which is wound around the two half shells 62A, 62B, by a carcass 66 (described below) which is mounted on the winding 64 and by two half shells of external envelope 68A and 68B.
  • the two half insulation shells 62A and 62B used to create a thin envelope electrically insulating around the torus 60. These two half shells insulation 62A and 62B do not fully meet when applied on either side of the torus 60, in order to leave a space E between them.
  • the winding 64 consists of at least one insulated winding wire or varnished.
  • the winding wire of the winding 64 is wound around the toroidal assembly constituted by the torus 60 and the two insulation half-shells 62A and 62B, and the winding action is carried out so that the winding wire is constantly kept under a certain tension, so that when the winding is completed, the permanent tension of the winding wire generally constitutes a certain permanent force which holds the two half insulation shells 62A and 62B applied against the torus 60. It follows from this that the assembly constituted by the torus 60, the two half insulation shells 62A, 62B and the winding 64 form a one-piece assembly.
  • Carcass 66 may have an annular shape having a section in the general shape of a U including one branch 66A extends along the surface of the winding 64 directed towards the center and of which the other branch 66B extends along the surface of the coil 64 directed towards outside.
  • the free ends of the two branches 66A and 66B include protuberances directed towards each other 68A and 68B, these protuberances having surfaces inclined both towards the bottom of the U-shape and outward. It follows from this only when the carcass 66 is in place, as is shown in Figure 8, it encloses, due to its elasticity, the winding 64.
  • the winding 64 is thus applied substantially against the underside of the bottom part 66C of the U-shaped part 66, against the face internal part of branch 66A, against the internal face of the branch 66B, against the inclined surface directed towards the bottom of the U-shaped part 70A of the protrusion 68A and against the inclined surface directed towards the bottom of the U-piece 70B of protrusion 68B.
  • the coil toroid 30 further comprises a shield 72 which is constituted by a shielding half-shell 72A and a shielding half-shell 72B.
  • the two half shielding shells 72A, 72B surround laterally each side of the toroidal assembly formed by the parts 60, 62, 64 and 66 so as to form a quasi-envelope continues 72 which serves as shielding.
  • FIG. 9 there is a perspective view exploded the different components that make up the torus coil 30 described in connection with Figure 8.
  • the carcass 66 is in the form of a half shell which constitutes a substantially shaped recess toric or annular which can envelop or surround the substantially toroidal external contour of the winding 64. More precisely than what has been described in relation with FIG. 8, it can be seen that the carcass 66 comprises at in addition to the axially directed legs 66A, 66B which constitute branches 66A and 66B of room 66 previously described in relation to Figure 8.
  • the carcass 66 forms with the branches 66A, 66B a single molded plastic part.
  • Figure 10 shows in perspective view enlarged the carcass 66 shown in FIG. 9.
  • this carcass has branches 66A, 66B facing each other, these couples branches 66A, 66B being regularly spaced on the circumference.
  • the carcass 66 further comprises a lateral protrusion 78 which is used to support and guide the connection wires connecting the winding 64 outside.
  • Carcass 66 can be made in one insulating plastic material having good mechanical characteristics of rigidity and elasticity. Carcass 66 can be used to both provide holding the winding 64 firmly and ensuring a connection closes with shield 72.
  • the carcass 66 serves as a connecting piece between the assembly constituted by the torus 60, the insulation parts 62 and the winding 64 and the assembly constituted by the two half-shells 72A and 72B shielding.
  • This carcass 66 therefore allows to fix all of these parts which together constitute what was previously called the coil toroid 30. It follows from this that the coil toroid 30 constitutes a one-piece assembly in which all of the its component parts are rigidly connected to each other to others.
  • This monobloc assembly constituting the torus coil 30 also has the advantage of being removable. In particular we can easily disassemble the two shielding half shells 72A, 72B and the carcass 74.
  • This particular construction of the coil torus 30 also has the advantage of ensuring good protection of the winding 64 which constitutes the most fragile of the whole. Indeed, the carcass 74 encloses in a rigid and elastic manner the winding 64 avoiding thus any possibility of appearance of a game at the level of this winding 64, this play being detrimental because can damage the winding 64 when the assembly is subject to certain shocks or vibrations.
  • Figures 11 and 12 show the terminal cover connection cover which was mentioned previously.
  • the 18 is a part which can optionally be provided on the differential protection block according to the present invention as described above.
  • the connection cover 18 is designed to be mounted in last, that is after having already completely assembled the functional sub-assembly 16, after having tested and found to be good and after enclosing the sub-assembly functional 16 in the housing 14. More precisely, the cover 18 is intended to be fixed on the upper half-casing 14B when the two half-casings 14A and 14B are already assembled.
  • connection cover 18 ensures the next function.
  • a person responsible for checking a electrical installation including among others a certain number of differential protection blocks depending on the present invention may wish to perform a test installation dielectric. To perform such test, it was necessary until now to disconnect electronic cards included in known blocks differential protection.
  • the particular structure cover 18 according to the invention allows automatically perform such disconnection from the electronic card.
  • the connection cover 18 is present in the form of a plate or cover 80 which has on its face directed downwards 80A (FIG. 12) terminals or connection contacts 82.
  • a window 84 visible in Figure 4
  • This window is located above the electronic card 32 contained in the housing 14.
  • connection cover 18 hides window 84 and simultaneously the connection contacts 82 of the connection cover 18 automatically establish connections between the electronic card 32 and the others active parts contained in the housing 14 (in especially the coil toroid, a power supply and the trip control mechanism).
  • the card electronics 32 is completely disconnected, i.e. that it is completely electrically isolated from rest of the differential protection block, and it's in this condition possible to perform the test dielectric mentioned above, without having to perform complicated disconnection or dismantling operations of the electronic card.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
  • Electromagnets (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Filters And Equalizers (AREA)

Claims (4)

  1. Fehlerstromschutzblock, der zur Bildung eines Fehlerstromleistungsschalters mit einem mehrpoligen Leistungsschalter kombiniert werden kann, wobei dieser Fehlerstromschutzblock
    ein Gehäuse umfaßt, das aus einer unteren Gehäusehälfte (14A) und einer oberen Gehäusehälfte (14B) besteht, die zusammen verschiedene aktive Elemente des Fehlerstromschutzblocks umschließen können, wobei diese verschiedenen aktiven Elemente mindestens durch
    eine, elektrische Leitungspfade (26) für die einzelnen Pole des mehrpoligen Leistungsschalters bildende Verbindungsanordnung (22),
    einen Spulenring (30), der dazu dient, zur Erfassung eines Differenzstroms um die genannten elektrischen Leitungspfade herumgeführt zu werden,
    sowie einen Abschaltsteuermechanismus (34) gebildet werden, der dazu dient, als Folge eines, vom genannten Spulenring erzeugten elektrischen Signals eine Abschalthandlung im mehrpoligen Leistungsschalter zu steuern,
       dadurch gekennzeichnet, daß er darüber hinaus einen Tragkörper (20) umfaßt, auf dem die genannten aktiven Elemente zur Bildung einer starren Funktionsbaugruppe (16) befestigt werden, wobei der genannte Tragkörper (20) aus einem ersten Tragkörperteil (20A) aus Formkunststoff und einem, auf das erste Tragkörperteil aufsetzbaren zweiten Tragkörperteil (20B) aus Formkunststoff besteht,
    derart daß die genannte Funktionsbaugruppe (16) mit dem Fehlerstromleistungsschalter verbunden werden kann, um die Durchführung einer Funktionsprüfung der Funktionsbaugruppe (16) bei gleichzeitiger Zugänglichkeit zumindest bestimmter der genannten aktiven Elemente (22, 30, 34) zu ermöglichen, und die genannte Funktionsbaugruppe (16) anschließend im genannten Gehäuse (14A, 14B) eingeschlossen wird, wenn die genannte Funktionsprüfung eine ausreichende Funktionstüchtigkeit ergeben hat.
  2. Fehlerstromschutzblock nach Anspruch 1, dadurch gekennzeichnet, daß das genannte erste (20A) und das genannte zweite Tragkörperteil (20B) im zusammengesetzten Zustand
    einen Hüllraum (42, 44), der einen Spulenring (30) annähernd vollständig umgibt,
    eine, in der Mitte des Spulenrings ausgebildete, mit Teilungswänden versehene Öffnung (50) zur Durchführung der genannten elektrischen Leitungspfade (26),
    einen Isolierstoffträger für die genannten elektrischen Leitungspfade (26)
    sowie einen Träger zur Montage mindestens des genannten Abschaltsteuermechanismus' (34) an der Außenseite bilden.
  3. Fehlerstromschutzblock nach Anspruch 2, dadurch gekennzeichnet, daß er darüber hinaus mindestens eine Elektronikkarte (32) umfaßt, die an der Außenseite des genannten Tragkörpers montiert werden kann, um die Betätigung des genannten Abschaltsteuermechanismus' (34) als Folge eines vom Spulenring (30) erzeugten Signals zu steuern.
  4. Fehlerstromschutzblock nach Anspruch 3, dadurch gekennzeichnet, daß die genannte obere Gehäusehälfte (14B) ein über der eingesetzten, genannten Elektronikkarte (32) angeordnetes Fenster (84) aufweist und eine Anschlußblende (18) vorgesehen ist, die eine Abdeckung bildet und an deren, nach unten gewandter Seite (80A) Verbindungskontakte (82) angeordnet sind, derart daß das Fenster (84) bei Befestigung der Anschlußblende auf einer Oberseite der oberen Gehäusehälfte (14B) durch die Anschlußblende (18) überdeckt wird und gleichzeitig die Verbindungskontakte (82) der Anschlußblende automatisch die elektrischen Verbindungen zwischen der Elektronikkarte (32) und den übrigen, im Gehäuse enthaltenen aktiven Teilen herstellen, und umgekehrt die Elektronikkarte (32) beim Abnehmen der Anschlußblende (18) vollständig freigeschaltet wird, wodurch eine Isolationsprüfung des Fehlerstromschutzblocks durchgeführt werden kann, ohne daß die Gefahr einer Beschädigung der Elektronikkarte besteht.
EP19940420024 1993-02-09 1994-01-26 Differentialschutzeinheit mit auf Funktion testbarer Untereinheit Expired - Lifetime EP0611224B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9301506 1993-02-09
FR9301506A FR2701335B1 (fr) 1993-02-09 1993-02-09 Bloc de protection différentielle avec sous ensemble fonctionnel testable.

Publications (2)

Publication Number Publication Date
EP0611224A1 EP0611224A1 (de) 1994-08-17
EP0611224B1 true EP0611224B1 (de) 1998-08-05

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EP19940420024 Expired - Lifetime EP0611224B1 (de) 1993-02-09 1994-01-26 Differentialschutzeinheit mit auf Funktion testbarer Untereinheit

Country Status (5)

Country Link
EP (1) EP0611224B1 (de)
CN (1) CN1042870C (de)
DE (1) DE69412149T2 (de)
ES (1) ES2120589T3 (de)
FR (1) FR2701335B1 (de)

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Publication number Priority date Publication date Assignee Title
FR2772979B1 (fr) * 1997-12-18 2002-09-20 Schneider Electric Sa Dispositif de raccordement electrique d'un bloc differentiel sur un disjoncteur ou analogue et bloc differentiel equipe d'un tel dispositif
FR2790610B1 (fr) * 1999-03-02 2001-05-04 Schneider Electric Ind Sa Declencheur electronique comportant un module long retard amovible associe a une fonction de connexion/deconnexion en tension
FR2811805B1 (fr) * 2000-07-13 2002-08-30 Schneider Electric Ind Sa Appareil de protection electrique differentiel
ITBG20030034A1 (it) * 2003-05-20 2004-11-21 Abb Service Srl Dispositivo per il contenimento di mezzi sensori di corrente.
JP4200291B2 (ja) 2003-05-21 2008-12-24 富士電機アセッツマネジメント株式会社 漏電遮断器
JP4123081B2 (ja) * 2003-07-03 2008-07-23 富士電機機器制御株式会社 漏電遮断器
CN1312719C (zh) * 2004-12-14 2007-04-25 常熟开关制造有限公司(原常熟开关厂） 塑壳断路器
PL2079091T3 (pl) 2008-01-10 2014-07-31 Schneider Electric Ind Sas Obudowa wyzwalacza elektronicznego dla wyłącznika samoczynnego, elektroniczne urządzenie rozłączające i sposób montażu
FR2926393B1 (fr) * 2008-01-10 2009-12-18 Schneider Electric Ind Sas Bloc de transformation d'un declencheur electronique a double passage
FR3029350B1 (fr) * 2014-12-01 2016-12-23 Hager-Electro Sas Dispositif de protection differentielle
DE102020116428A1 (de) * 2020-06-22 2021-12-23 Magnetec Gmbh Sensor, Schutzschalter, Ladekabel und Ladestation

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
DE1022298B (de) * 1956-09-07 1958-01-09 Siemens Ag Aus Baugruppen zusammensetzbarer Selbstschalter
DE7637590U1 (de) * 1976-12-01 1981-12-24 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Mit einem Leitungsschutzschalter kombinierter Fehlerstromschutzschalter
US4507709A (en) * 1984-02-13 1985-03-26 General Electric Electrical interconnect arrangement for a GFCI magnetic sensor module plug-in subassembly
US4641216A (en) * 1985-04-22 1987-02-03 General Electric Company Signal processor module for ground fault circuit breaker
US5095398A (en) * 1990-02-12 1992-03-10 Square D Company Electrical circuit breaker protection device

Also Published As

Publication number Publication date
EP0611224A1 (de) 1994-08-17
DE69412149D1 (de) 1998-09-10
FR2701335B1 (fr) 1995-04-14
CN1042870C (zh) 1999-04-07
CN1101456A (zh) 1995-04-12
DE69412149T2 (de) 1999-02-11
FR2701335A1 (fr) 1994-08-12
ES2120589T3 (es) 1998-11-01

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