EP0649158B1 - Bloc de protection différentielle avec passage de câbles - Google Patents
Bloc de protection différentielle avec passage de câbles Download PDFInfo
- Publication number
- EP0649158B1 EP0649158B1 EP19940410091 EP94410091A EP0649158B1 EP 0649158 B1 EP0649158 B1 EP 0649158B1 EP 19940410091 EP19940410091 EP 19940410091 EP 94410091 A EP94410091 A EP 94410091A EP 0649158 B1 EP0649158 B1 EP 0649158B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- circuit breaker
- branch
- differential protection
- face
- case
- 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
Links
Images
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
- H01H83/20—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
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0264—Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
- H01H71/0271—Mounting several complete assembled circuit breakers together
Definitions
- the present invention relates generally to a protective block differential adaptable on an electric circuit breaker.
- electrical circuit breaker means any type an electrical appliance fulfilling, among other things, an electrical connection function and electrical cut-off, these electrical devices can for example be a electric circuit breaker, electric switch, etc.
- a block of differential protection according to the preamble of claim 1 which is in the general form of a housing substantially parallelepiped intended to come to be pressed laterally and to be fixed against an electric circuit breaker and which has a protuberance in its upper part which protrudes from the corresponding upper edge of the circuit breaker electric, this protuberance having a hole which passes right through it.
- a horizontal axis toroid is housed in the protrusion of the differential protection block and this torus surrounds the hole.
- a totalizing transformer is constituted by this toroid on which is wound a secondary winding.
- Such a differential protection block is well known of art, and we can briefly say that it consists in that it appears at the boundaries of the secondary winding a certain electrical voltage when the sum of currents which pass respectively through the various electric cables passing to across the hole is significantly different from zero.
- a disadvantage of such a device known is that the electrical cables that must be connected manually to the electric circuit breaker by first passing through the the protrusion of the differential protection block can be connected abnormally for example one of these cables may be inadvertently connected without pass through the hole. In such a case, the differential protection does not work not because it does not add up all the currents flowing through the circuit breaker electric.
- the electric cables which must pass through the hole in the differential protection block must be twisted from so as to present substantially a right angle between the end of the strand of the cable which is housed in the corresponding terminal of the electric circuit breaker and the part of the strand which passes through the hole of the differential protection block.
- the electrical cables are relatively large, this is not an easy and satisfactory to operate to make the electrical connections.
- the inflections mechanical at right angles to multiple electrical cables can favor certain deterioration of the electrical insulations of these cables and also promote poor electrical connection at the corresponding terminals of the electrical circuit breaker.
- a electric circuit breaker comprising a housing of general shape substantially parallelepiped, this housing integrally comprising a part in protuberance which includes a magnetic coil torus.
- the electric cables which reach or leave the circuit breaker must pass through a hole in this protrusion in the center of the magnetic coil torus, so that their ends are connected respectively to the different corresponding terminals of the circuit breaker.
- a drawback of such a device lies in the fact that the transformer totalizer constituted by the magnetic coil torus constitutes an element which is integrated in the single box of the circuit breaker and which is therefore not separable from the circuit breaker.
- Another drawback is that the cable connection terminals which must pass through the toroid are located in a housing formed between the part of the case which includes the torus and another part of the same case which includes the entire circuit breaker mechanism. Such an arrangement is not advantageous from the point of view of the convenience of connecting the cables to these terminals.
- such a device can only be used for a circuit breaker bipolar, that is to say a circuit breaker comprising only two terminals of input connection (and two output connection terminals) and only one cable including two electrical conductors, one end of each conductor being connected to the corresponding terminal and the electric cable itself passing through the hole in the center of the magnetic coil torus.
- a circuit breaker bipolar that is to say a circuit breaker comprising only two terminals of input connection (and two output connection terminals) and only one cable including two electrical conductors, one end of each conductor being connected to the corresponding terminal and the electric cable itself passing through the hole in the center of the magnetic coil torus.
- An object of the present invention is to provide a protective block differential adaptable to a circuit breaker or an electric switch, in which the associating such a differential protection block with a circuit breaker or a particular electrical switch does not change the way of performing the different electrical connections of the circuit breaker or electrical switch.
- Another object of the present invention is to provide such a block of differential protection also in modular form suitable for make the association with the circuit breaker or the electrical switch easy and reliable.
- the housing can be produced at from two separate boxes, each of substantially parallelepiped shape, assembled perpendicularly, so that the first branch can come in support on the upper or lower side face of the circuit breaker.
- the vertical passage is formed by several individual passages arranged in correspondence with the orifices.
- the first branch may have connection pads projecting, adapted to engage through the holes in the terminals, and intended to ensure the electrical supply of the differential protection block.
- FIG. 1 there is a general distinction between an electric circuit breaker conventional multipolar 1.
- This circuit breaker 1 conventionally comprises a molded case whose general external shape is that of a parallelepiped which presents a face front 2, a left vertical side face 3, a right vertical side face 4 (not actually visible in the figure), an upper horizontal lateral face 5 (not actually visible in the figure), and a lower horizontal lateral face 6.
- the faces lateral 3 and 4 are parallel to each other and the lateral faces 5 and 6 are parallel to each other.
- the side face 5 includes orifices through which can be introduced stripped ends of cables, and terminals are arranged inside the housing near this side face 5 and are accessible from the outside so that connect and disconnect cables with these terminals.
- the face side 6 includes openings 7 through which bare ends can be inserted cables (not shown), and terminals (not visible) are arranged inside the housing close to this lateral face 6 and are accessible from the outside so as to be able to connect and disconnect cables with these terminals.
- circuit breaker 1 On the front face 2, holes 8 are formed which allow the passage of a tool to allow actuation of the terminals housed in the housing to make the connection or disconnecting cables.
- the number of poles of circuit breaker 1 corresponds to the number orifices 7, the number of corresponding terminals and the number of holes 8.
- the circuit breaker 1 is a quadrupole circuit breaker and by therefore it is designed to receive four electrical cables (visible in Figure 3) including each is introduced through one of the four orifices 7.
- the orifices 7 are preferably arranged along a line parallel to the front face 2.
- the cables (not shown in the Figure 1) are naturally presented substantially perpendicular to the face horizontal 6, that is to say they are presented naturally substantially perpendicularly, so that their ends can be easily inserted into the corresponding orifice 7.
- the circuit breaker 1 When incoming cables are thus connected to the terminals at level of the upper face 5 and when other starting cables are thus connected to the terminals on the underside 6, the circuit breaker 1 is connected so operational and can therefore for example function to trip when the intensity of current in one or more of the cables exceeds a predetermined threshold.
- the front face 2 of the circuit breaker 1 is provided with an opening handle 9 and circuit breaker closing 1.
- the circuit breaker 1 can be a conventional one-piece multipole circuit breaker or it can in fact be constituted by several separate monopolar circuit breakers arranged side by side so as to constitute together a single multipole circuit breaker 1, as this is well known in the art.
- the invention relates more particularly to the protective block differential 10 which is also shown in FIG. 1.
- the protection block differential 10 conventionally includes a transformer totalizer 11 (shown schematically by a set of lines in dotted line) comprising a magnetic toroid and a secondary winding, and a relay trigger (not visible in Figure 1).
- the summing transformer 11 and the trip relays are housed inside a box 12.
- the housing 12 has two branches perpendicular to each other and rigidly connected to each other.
- the first branch 13 is in the general form of a parallelepiped and it extends so generally horizontally, that is to say that its height is less than its others dimensions.
- the first branch 13 further comprises an upper horizontal face 14 visible in FIG. 3.
- the first branch 13 contains the transformer totalizer 11 whose magnetic toroid is arranged so as to present an axis vertical.
- the first branch 13 further comprises at least one vertical passage 15 which goes right through it and which is located inside the magnetic torus of the totalizing transformer 11.
- the totalizing transformer 11 has a general shape similar to a torus but elongated.
- the central recess formed by the totalizing transformer 11 is a recess with a vertical axis but which has a elongated oval shape, oblong shape or circular shape.
- the vertical passage 15 formed so as to pass right through vertically the first branch 13 has an elongated or oblong oval shape.
- the dimensions of the vertical passage 15 are smaller than the dimensions of the hole central formed by the totalizing transformer 11. In this way, it is possible to house the summing transformer 11 inside the first branch 13 around internal walls which form the vertical passage 15 of the branch 13.
- the second branch 17 is in the general form of a parallelepiped and it generally extends vertically, that is to say that its width is less than its other dimensions.
- the second branch 17 contains the trip relay (not visible on the drawings) and is fitted with a reset lever 19.
- the two branches 13 and 17 are connected to each other at a right angle, so that the horizontal face upper 14 of the first branch 13 and the left vertical side face 18 of the second branch 17 form an angle of 90 °.
- the vertical side face 18 is intended to be pressed against the vertical lateral face 4 of the circuit breaker 1.
- protuberance and recess (not shown) are provided at the side faces 4 and 18 so that, when these two lateral faces 4 and 18 come to rest one on the other these shapes ensure precise relative positioning of the block of differential protection 10 with respect to the circuit breaker 1.
- a control finger 20 ( Figure 2) is further provided projecting from the vertical side face 18, this finger being, conventionally, movable so as to control an action of circuit breaker in circuit breaker 1 when the trip relay included in the block differential protection 10 is energized.
- the mounting of a differential protection block 10 according to the invention on a conventional circuit breaker 1 can be performed as follows.
- the differential protection block 10 is brought against the circuit breaker 1 of so that, on the one hand, its vertical lateral face 18 comes into contact with the face opposite vertical side 4 of the circuit breaker 1, and on the other hand the horizontal face upper 14 of the first branch 13 comes into contact with the horizontal face opposite 6 of the circuit breaker.
- the vertical passage 15 of oblong shape substantially surrounds all of the orifices 7 formed at level of the lower horizontal surface 6 of the circuit breaker 1. It follows from this that is then possible to bring an electric cable by passing it vertically to the through the vertical passage 15 until its stripped end comes to thread in the corresponding orifice 7 in order to electrically connect this end stripped to the corresponding terminal housed in circuit breaker 1.
- the secondary winding of the summing transformer 11 is electrically connected to the trip relay housed in the second branch 17 so that the appearance of an electrical signal at the terminals of this winding secondary can actuate, directly or indirectly, the trip relay, in a conventional way, so that this trigger relay can in turn control, in a conventional manner, the tripping of circuit breaker 1 via control finger 20.
- this protective block differential 10 further comprises, as can be seen in FIGS. 1 to 4, tracks 22 which project upwards from the upper horizontal face 14 of the first branch 13. These areas 22 are arranged so as to engage with the through corresponding orifices 7 made at the horizontal face lower 6 of circuit breaker 1, when differential protection block 10 comes connect to circuit breaker 1.
- FIG 4 there is shown a terminal 23 which is normally housed at inside the circuit breaker 1 opposite a corresponding orifice 7.
- a cable 24 which is normally passed through the vertical passage 15 of the differential protection block 10 and the stripped end 25 of which is housed in terminal 23 to be connected to it.
- track 22 comes on automatically in the terminal 23 housing, and thus the branch connection described above can be easily obtained during this coupling.
- the differential protection block is configured according to an alternative embodiment with respect to the differential protection block of the figure 1.
- This alternative embodiment consists in that the vertical passage 15 of the block of differential protection of figure 1 is replaced by a number of passages vertical 15A, 15B, 15C, 15D which are arranged in correspondence with the orifices 7 of the circuit breaker 1.
- each cable 24 passes through an individual vertical passage and the cable is better guided in such an individual passage.
- the totalizing transformer 11 surrounds the assembly formed by these different vertical passages 15A to 15D, as for the first embodiment of FIG. 1.
- FIG. 5 another alternative embodiment of the invention in which the housing 12 of the differential protection block 10 is not formed in one piece, as for the embodiments of FIGS. 1 to 3, but it is formed in two separate pieces 12A and 12B.
- Box 12A corresponds substantially to branch 17 of the first embodiment and the housing 12B corresponds substantially to branch 13 of the first embodiment.
- removable fastening elements are provided on the two separate housings 12A and 12B of so that the housing 12B can be fixed either on the face upper 30 of the housing 12A (as shown on the left side of the Figure 5), either on the underside 31 of the housing 12A (as shown in the right part of figure 5).
- This alternative embodiment makes it possible to be able to use the same parts forming the housing 12 of the differential protection block according to the invention to either constitute a differential protection block intended to come measure the differential currents at the supply cables of a circuit breaker, i.e. constitute a differential protection block intended to measure the currents differential at the circuit breaker feeder cable.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Emergency Protection Circuit Devices (AREA)
Description
- un mécanisme de déclenchement du disjoncteur,
- une première face latérale qui inclut une rangée horizontale d'orifices de raccordement à des bornes
- une seconde face latérale, perpendiculaire à la première face ;
- un transformateur totalisateur comprenant un tore magnétique et un enroulement secondaire susceptible de délivrer un signal, et
- un relais de déclenchement commandé par ledit signal et servant à piloter le mécanisme de déclenchement du disjoncteur.
- une première branche qui vient prendre appui sur la première face du boítier du disjoncteur, qui renferme le tore d'axe vertical et qui présente au moins un passage vertical de part en part de manière à créer un passage incontournable au travers du tore lors du raccordement des câbles aux bornes ; et
- une seconde branche qui vient prendre appui sur la seconde face du boítier du disjoncteur et qui renferme le relais de déclenchement.
Claims (4)
- Bloc de protection différentielle (10) adaptable sur un disjoncteur électrique (1), ledit disjoncteur électrique (1) étant de forme sensiblement parallélépipédique et incluant :ledit bloc (10) incluant, dans un boítier (12) :un mécanisme de déclenchement du disjoncteur,une première face latérale (6) incluant une rangée horizontale d'orifices (7) de raccordement à des bornes, etune seconde face (4) latérale, perpendiculaire à la première face (6) ;caractérisé en ce que :un transformateur totalisateur (11) comprenant un tore magnétique et un enroulement secondaire susceptible de délivrer un signal etun relais de déclenchement commandé par ledit signal et servant à piloter le mécanisme de déclenchement du disjoncteur (1) ;ledit boítier (12) du bloc de protection différentielle comporte deux branches (13, 17) perpendiculaires dont chacune est de forme sensiblement parallélépipédique ;une première branche (13) qui vient prendre appui sur ladite première face (6) du boítier du disjoncteur, qui renferme le tore d'axe vertical et qui présente au moins un passage vertical de part en part (15) de manière à créer un passage incontournable au travers dudit tore lors du raccordement de câbles (24) aux bornes ; etune seconde branche (17) qui vient prendre appui sur la seconde face (4) du boítier du disjoncteur et qui renferme le relais de déclenchement.
- Bloc de protection différentielle selon la revendication 1, caractérisé en ce que la première branche (13) et la seconde branche (17) sont formées par des boítiers séparés (12B, 12A) de façon à ce que le boítier séparé (12B) constituant la première branche puisse être fixé soit sur une face supérieure (30) du boítier (12A) constituant la seconde branche soit sur une face inférieure (31) du boítier (12A) constituant la seconde branche.
- Bloc de protection différentielle selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit passage vertical (15) est formé par plusieurs passages (15A à 15D) disposés en correspondance avec les orifices (7) du disjoncteur (1).
- Bloc de protection différentielle selon l'une quelconque des revendications précédentes, caractérisé en ce que la première branche comporte en outre des plages de raccordement disposées en saillie, adaptées à venir s'engager au travers des orifices dans les bornes, et destinées à assurer l'alimentation électrique du bloc de protection différentielle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9312479A FR2711449B1 (fr) | 1993-10-18 | 1993-10-18 | Bloc de protection différentielle avec passage des câbles. |
| FR9312479 | 1993-10-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0649158A1 EP0649158A1 (fr) | 1995-04-19 |
| EP0649158B1 true EP0649158B1 (fr) | 1999-09-29 |
Family
ID=9452017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19940410091 Expired - Lifetime EP0649158B1 (fr) | 1993-10-18 | 1994-10-13 | Bloc de protection différentielle avec passage de câbles |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0649158B1 (fr) |
| DE (1) | DE69420923T2 (fr) |
| ES (1) | ES2139055T3 (fr) |
| FR (1) | FR2711449B1 (fr) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT411115B (de) * | 1996-05-07 | 2003-09-25 | Felten & Guilleaume Ag Oester | Schaltgerät mit bewegbaren verbindungs-leitungen |
| BR9810831A (pt) * | 1998-05-29 | 2000-07-25 | Hager Electro | Bloco elétrico compacto por dois elementos |
| IT1313953B1 (it) * | 1999-12-16 | 2002-09-26 | Abb Ricerca Spa | Dispositivo di interruzione e protezione di un circuito dialimentazione di un carico contro i guasti verso terra. |
| DE10120677B4 (de) * | 2001-04-27 | 2010-11-04 | Siemens Ag | Modulares Reiheneinbaugerät |
| ITBG20030033A1 (it) * | 2003-05-20 | 2004-11-21 | Abb Service Srl | Dispositivo elettrico di protezione contro correnti differenziali. |
| ES2307135T3 (es) * | 2005-09-29 | 2008-11-16 | Hager-Electro Sas | Bloque diferencial con cajon deslizante segun una trayectoria inclinada. |
| FR2902924B1 (fr) * | 2006-06-26 | 2008-08-01 | Schneider Electric Ind Sas | Appareil electrique modulaire assurant au moins deux fonctions electriques tel un disjoncteur differentiel. |
| IES20070390A2 (en) * | 2007-05-30 | 2008-03-19 | Tripco Ltd | A residual current device |
| DE602007006940D1 (de) * | 2007-07-26 | 2010-07-15 | Bticino Spa | Differentialschutzblock für einen elektrischen Schalter |
| DE102008004870B4 (de) * | 2008-01-17 | 2014-04-17 | Siemens Aktiengesellschaft | Mit einem Schutzschalter mechanisch koppelbares Modul |
| NL1039439C2 (nl) * | 2012-03-06 | 2013-09-09 | Bridgedrive Products B V | Sorteerinrichting voor het sorteren van speelkaarten. |
| CN106128867B (zh) * | 2016-08-05 | 2018-10-12 | 梅兰日兰电气集团(苏州)有限公司 | 一种塑壳漏电断路器 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2654373A1 (de) * | 1976-12-01 | 1978-06-08 | Licentia Gmbh | Mit einem mehrpoligen leitungsschutzschalter kombinierter fehlerstromschutzschalter |
| DE7813854U1 (de) * | 1978-05-08 | 1979-10-11 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Mit einem mehrpoligen Leitungsschutzschalter kombinierter Fehlerstromschutzschalter |
| DE2834327C2 (de) * | 1978-08-04 | 1983-01-13 | Heinrich Kopp Gmbh & Co Kg, 8756 Kahl | Elektrischer Vollschutzschalter |
| DE3338961A1 (de) * | 1983-10-27 | 1985-05-09 | Brown, Boveri & Cie Ag, 6800 Mannheim | Installationsschutzschalter |
-
1993
- 1993-10-18 FR FR9312479A patent/FR2711449B1/fr not_active Expired - Fee Related
-
1994
- 1994-10-13 EP EP19940410091 patent/EP0649158B1/fr not_active Expired - Lifetime
- 1994-10-13 DE DE1994620923 patent/DE69420923T2/de not_active Expired - Fee Related
- 1994-10-13 ES ES94410091T patent/ES2139055T3/es not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2711449A1 (fr) | 1995-04-28 |
| DE69420923T2 (de) | 2000-05-04 |
| EP0649158A1 (fr) | 1995-04-19 |
| ES2139055T3 (es) | 2000-02-01 |
| FR2711449B1 (fr) | 1995-12-22 |
| DE69420923D1 (de) | 1999-11-04 |
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