EP2143121B1 - Appareil de commutation d'installation - Google Patents

Appareil de commutation d'installation Download PDF

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Publication number
EP2143121B1
EP2143121B1 EP08773336.6A EP08773336A EP2143121B1 EP 2143121 B1 EP2143121 B1 EP 2143121B1 EP 08773336 A EP08773336 A EP 08773336A EP 2143121 B1 EP2143121 B1 EP 2143121B1
Authority
EP
European Patent Office
Prior art keywords
installation
switching device
housing
phase
busbars
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.)
Active
Application number
EP08773336.6A
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German (de)
English (en)
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EP2143121A1 (fr
Inventor
Joachim Majewski
Erwin Muders
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB AG Germany
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ABB AG Germany
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Filing date
Publication date
Application filed by ABB AG Germany filed Critical ABB AG Germany
Publication of EP2143121A1 publication Critical patent/EP2143121A1/fr
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Publication of EP2143121B1 publication Critical patent/EP2143121B1/fr
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    • 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
    • H01H71/08—Terminals; Connections
    • 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
    • H01H71/1081—Modifications for selective or back-up protection; Correlation between feeder and branch circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/06—Housings; Casings; Bases; Mountings
    • H01H73/08—Plug-in housings

Definitions

  • the invention relates to an installation switching device according to the preamble of claim 1, as well as a counter space with an installation switching device according to claim 7.
  • Generic installation switching device are for example from the DE 195 26 592 C2 or the DE 10 2004 019 175 A1 known. They are for example designed and used as so-called main circuit breaker.
  • a main circuit breaker is installed, for example, in the counter space or the distribution board of an electrical house installation.
  • Common are, for example, three-phase distribution boards, in which three parallel in the mounting plane superimposed phase rails, also referred to as busbars or busbars, for the three phases of a power system, which are now usually referred to in a standardized manner as L1, L2, L3, and additionally one Phase rail are provided for the neutral.
  • the installation can be carried out so that the device is mechanically fastened by means provided on the device housing quick-fastening device on a standard profile support rail.
  • the electrical connection of the device to the phase rails is made via connecting conductors or busbars with corresponding connection lugs inserted into the terminals of the device. Power is supplied to the phase rails themselves via power terminals that require additional space in the
  • the DE 195 13 062 A1 shows a selective circuit breaker, the function of which a connection to a neutral conductor is required, and which has an outwardly facing U-shaped bracket for electrical connection to a busbar from which a metal strip inside the housing leads to the input of the switching mechanism.
  • the EP 0 229 590 shows an installation switching device having a Stecktulpe for contacting with a bus bar, which is floatingly positioned in a guide channel on the housing outside, and which can be connected via an outside conductor piece with a terminal.
  • the DE 103 35 496 A1 shows the installation of a service switching device in a three-phase distribution board via a mounting adapter, the adapter is mounted mechanically and electrically on the busbars by means of adapter terminals, and the electrical connection through a busbar within the adapter between the adapter terminal and the terminal of the latched on the adapter device is made.
  • the device itself is not designed for direct mounting the busbars in an installation distributor suitable.
  • the adapter is an additional component, which causes additional expenses and additional costs during installation.
  • a phase connection rail can thus be arranged in the interior of the housing close to the fastening side and approximately parallel to the latter, which in the installed state can be connected to the connection terminal near the input narrow side and is otherwise electrically and mechanically isolated from the remaining components and assemblies within the housing the free end of a protruding on the mounting side of the housing clamping contact for clamping on busbars is mounted in an installation distributor.
  • a service switching device is that it is mechanically fastened to the busbars of the installation distribution while electrically contacted directly to the busbars of an installation distribution without the interposition of an adapter on the existing inside the housing phase terminal rail with the clamping contact located thereon.
  • the service switching device is designed so that phase connection rails of different lengths can be arranged, wherein the length of the phase connection rail corresponds to the position of the connected busbar relative to the terminal in the installed state of the service switching device.
  • Such an inventive Installation switching device can be modified by simply changing the phase connection rail used in a device for direct mounting on the L1 phase, or the L2 phase, or the L3 phase.
  • the phases L1, L2, L3 are in the installation distributor in the mounting plane at a defined distance from each other. If the device is to be connected to the phase L1, for example, the phase connection rail is chosen so long that their contact terminal exits from that housing opening, which corresponds in the installed state of the device with the phase L1.
  • the length of the phase connection rail is the only variable in an installation switching device according to the invention. All other components or assemblies within the device and their mutual position relative to each other is independent of whether the device is intended for connection to the L1 phase, the L2 phase, or the L3 phase.
  • phase connection rail can be connected to the input terminal only in the vicinity of the terminal narrow side and otherwise runs parallel to the inner mounting side of the service switching device independently and mechanically and electrically isolated from the other components in the interior of the device ,
  • the only connection point to the components of the service switching device is therefore the input terminal, both for an external connection conductor and for the internal phase connection rail.
  • no connection point of the internal phase connection rail is provided on the current path between the two terminals of the service switching device.
  • the connection point of both an external connection conductor and the internal phase connection rail is taken out of the current path and concentrated in the input terminal.
  • an embodiment of the invention is very advantageous in which the insulating housing on the mounting side at least three openings for the passage of the contact terminals of arrangeable in the housing phase connection bars, wherein the openings with the location of three busbars in a three-phase distribution board correspond when the service switching device is inserted into the distribution board, and wherein not required for the passage of contact terminals openings are closed with removable covers.
  • the device is thus prepared from the housing for connection to each of the three phase rails.
  • Inventive installation switching devices thus require only one type of housing, regardless of which of the three busbars within the installation distribution they are to be connected. All three of the respective busbars in the installed position of the device associated openings of the housing are already present at the beginning of the device manufacturing they are covered by removable cover plates. If it is established to which of the three busbars the device is to be connected, the housing opening corresponding to this busbar is opened by removing, for example, breaking out, the corresponding cover plate, and a phase connection rail of suitable length is used.
  • the former opening is closed by re-attaching the cover plate, with the position of the other busbar corresponding opening in the housing is opened, the originally used phase connection bar is removed and a phase connection rail is used, the Length now corresponds to the position of the other busbar
  • an installation switching device can also be designed for fastening by means of a busbar adapter on the busbars of an installation distributor or by means of a quick-fastening device to a standard profile support rail, if the disposable phase connection rail is removed, and the housing of the fastening by means of a busbar adapter on the busbars of an installation distributor or adapted by means of a quick-fastening device on a standard profile support rail accordingly.
  • the power supply to the device can thus be done in two ways. If the busbar to which the device is clamped is live, the power is supplied via the terminal contact and the phase connection rail. If the busbar is not live, so the power can be done via a connection conductor at the matterssklemmme, which is screwed there, for example, in a known manner.
  • the feed into the device via a connecting conductor opens up a further advantage of the invention.
  • the current can be fed into the busbar of the installation distribution via the phase connection rail and the terminal contact.
  • the service switching device then fulfills a dual function. It acts as a main circuit breaker for the downstream circuits and at the same time as a power rail terminal block to which it is attached, thus allowing the power supply of other devices connected to the same busbar. A separate power terminal is thus unnecessary, and it saves space in the distribution board.
  • the integrated phase connection rail can also be used very advantageously if the service switching device is used in a photovoltaic system to protect the power supply from the inverter of the photovoltaic system in the power grid.
  • the current generated in the photovoltaic module and converted into an alternating voltage in the inverter then flows via the output terminal into the service switching device according to the invention and leaves it at the input terminal. From there, the current path can continue to be led away via a connection conductor, or via the integrated phase connection rail, the current can be fed into the busbar system and from there further distributed, and all without a change or modification must be made to the service switching device.
  • FIG. 1 shows the circuit diagram of an installation switching device according to the invention, fitted in the peripheral contour of the housing.
  • a main current path which still passes through a main bimetallic strip 7, a main contact point 22 and a striking armature system 23.
  • a main current path Parallel to the series connection from the Main current bimetal 7 and the main contact point 22 is a Maustrompfad. This comprises a current limiting resistor 1, a selective thermal bimetal 3 and a separating contact point 25.
  • the main contact point 22 is designed as a single break. It comprises a movable contact lever, which carries a movable contact piece, and a fixed contact point with a fixed contact piece.
  • the movable contact lever is mounted on a housing fixedly mounted in the axis.
  • a mechanical switch lock 24 is included in the service switching device. This is on the one hand with the main bimetallic strip 7 and the selective bimetallic 3 along lines of action 81, 80 in mechanical operative connection, and on the other hand is the switch latch 24 along lines of action 82, 84. 86 with the isolating contact point 25 and the main contact point 22 in mechanical operative connection ,
  • the function of the service switching device according to the invention according to the in the FIG. 1 The circuit diagram shown is the following. Upon the occurrence of a short-circuit current in the main circuit, the impact armature system 23 very quickly strikes the movable contact lever away from the fixed contact along the line of action 83 and thus opens the main circuit at the main contact point 22. In this switching action is formed at the main contact point 22, a switching arc, which is fed to a main contact point 22 associated arc extinguishing device and is brought to extinction.
  • the current path commutates to the bypass path.
  • the short-circuit current now flows through the current limiting resistor 1, the selective bimetallic strip 3 and the separation pad 25 to the connection point 78 at which the main and the secondary current path are merged.
  • the selective thermal bimetal 3 has acted on the switching mechanism 24 along the line of action 80 through the limited short-circuit current in the secondary current path that this along the line of action 82, 84 the isolating contact point 25 and along the line of action 86, the main contact point 22 permanently opens.
  • an arc may also arise, which is another, the separation pad associated with 25 arc quenching device, supplied and made to extinguish it. Now Both the main and the isolating contact point are interrupted, and the current flow through the device is thus completely interrupted. A reconnection can now be done manually by pressing the switch latch 24 via a handle 26.
  • phase connecting rail 92 is connected via a flexible copper wire 93.
  • This carries at its free end a terminal contact 91, with which it can be clamped to a phase rail 90, also called busbar, in an installation distribution box, when the service switching device is mounted there.
  • the installation switching device according to the invention can thereby directly and without the interposition of an adapter and without the need for a power terminal mechanically and electrically via the phase connection rail 92 on the phase rails 90, also referred to as busbars, an installation distribution attached and electrically connected.
  • the service switching device 10 comprises an insulating housing 18, which has a front front side 14, rear front sides 15, a fastening side 12, and front and rear narrow sides 16,17.
  • the front narrow sides 16 connect the front front side 14 with the rear front sides 15.
  • the rear narrow sides 17 connect the rear front sides 15 with the attachment side 12.
  • the housing 18 thus receives approximately the shape of an inverted T, wherein the longitudinal beam of the T from the front Narrow sides 16 and the front front side 14 is limited, and wherein the switching mechanism 24, the isolating contact 25 and the selective bimetal 3 are arranged in the region of this longitudinal beam.
  • the main bimetal 7, the main pad 22, the striking armature system 23, the arc quenching device (not shown here) and the current limiting resistor 1 are arranged in the transverse bar of the T-shaped housing bounded by the rear narrow sides, the rear front side and the fastening side.
  • phase connection openings 121, 121b, 121 c are attached on the mounting side 12 of the service switching device.
  • the phase connection openings 121, 121b, 121c are positioned to correspond to the location of three busbars or busbars 90, 90b, 90c, also referred to as L1, L2, L3, in an installation distribution board when the service switching device is installed in the installation distribution board ,
  • Parallel to the attachment side 12 runs in the interior of the housing 18, the phase connection rail 92.
  • the position of the phase connection opening 121c corresponds in size and location with the attached to the free end of the phase connection rail 92 clamping contact 91 so that the clamping contact 91, the phase connection opening 121 c passes through and can cooperate with the busbar 90, L1, clamping.
  • the clamping contact 91 is designed as a spring terminal contact with two opposing resilient terminal strips.
  • the two remaining phase connection openings 121, 121 b are cover parts 122, 122 b covered, so that no impurities can penetrate into the interior of the device at these locations.
  • the device after FIG. 1 is thus set up for connection to the outside of three busbars of an installation distributor. If a device variant for connection to the middle of the three bus bars, L2, is required, the phase connection rail 92 is replaced by another, shorter phase connection rail whose clamping contact in the installed state protrudes from the fastening side 12 at the middle phase connection opening 122b. In this case, the two remaining phase connection openings 121, 121c are then closed with corresponding cover plates.
  • This configuration is in the Fig. 2 shown, in which, moreover, the components of the internal interconnection of the switching device are schematically referred to by the box 1000 summarized.
  • phase connection openings projections 125, 126, 127, 128 are integrally formed on the attachment side 12. With these, the housing on the other busbars that are not electrically connected, mechanically supported.
  • the upper and lower projections 125, 128 can be replaced by a respective latching device, for example a latching hook with which the device can be snapped onto the busbars of the installation distributor.
  • Such locking devices are known, for example from the DE 103 35 496 A1 , there in particular Figure 8, the disclosure of which should be included here in this regard.
  • the installation switching device thus makes it possible to produce devices for connection to different busbars without any other change in the position of the inner functional components simply by using a phase connection rail of suitable length and opening the corresponding phase connection opening and closing the other, not required, phase connection openings by a cover plate There are no further connection means for connecting a device according to the invention to the busbars needed. A high flexibility with modular internal structure of the device is thus achieved.
  • a switching device according to the invention by means of the inventive phase connection rail 92, which is electrically connected inside the housing with the access terminal 21, also an application in which the current flow is supplied to the main current path via a conductor connected to the access terminal 21, and at the same time a via the phase connection rail 92 Power rail to which the device is attached, is supplied with power, so that the installation switching device according to the invention in addition to its function as a circuit breaker still fulfills the function of a phase connection terminal to a power rail.
  • each of the three devices is provided with a phase connection rail, which is prepared for connection to a different busbar.
  • An installation switching device opens up a wide range of applications due to the double possibility of electrical connection, either via the access terminal 21 by means of a connection conductor or via the phase connection rail 92 by means of a busbar in an installation distributor, without having to make changes to the device for the different connection variants.
  • the selective main circuit breaker is modified in such a way that it simultaneously makes it possible to feed into or withdraw from the busbar system.
  • busbar 90 via a busbar terminal in a known manner and to feed other additional devices that are not connected to the busbar, via a connecting conductor to the terminal of the service switching device 10. This eliminates the need to provide additional busbar terminals for feeding additional devices on the busbar.
  • the space thus saved in the house connection box can be used with other functional components, for example a surge arrester.
  • a system for generating electricity by means of solar cells also called photovoltaic elements or photovoltaic system
  • produced in the photovoltaic elements direct current, which is converted by means of an inverter in alternating current.
  • the alternating current thus generated can then be fed via a separate electricity meter in the public grid.
  • This power supply can also be an inventive switching device according to Fig. 1 and 2 be used.
  • the power supply takes place in this application at the output terminal 20, the current path leaves the device at the input terminal 21.
  • the forwarding of the current in the public grid can then either via a connecting conductor, which is inserted to the input terminal 21, done, or via the phase connection rail 92, the power is fed into the busbar system and fed from there from the public grid.
  • Devices according to Fig. 1 and 2 are suitable for direct mounting on the busbars of an installation system, from the enclosure design. If the mechanical attachment of a device according to the invention, however, to a standard profile support rail, for example a top hat rail, done, the device needs on its mounting side a corresponding quick-fastening device, which is set up for mounting on standard profile rails.
  • An inventive device according to Fig. 1 and 2 can be easily converted into a device suitable for mounting on standard profile rails by the internal components and assemblies in a housing according to Fig. 3 to be built in. The internal structure of the device, the position and mutual arrangement of all internal components and assemblies is unchanged.
  • a snap-on device for the Nörmprofiltragschiene is formed in the form of a recess with a retaining lug 902, which is adapted for latching interaction with the standard profile support rail.
  • the phase connection rail 92 is omitted, the chamber provided for receiving them on the inside of the attachment side 12 remains empty.
  • the electrical connection of the device is made by connecting a connecting conductor to the input terminal 21.
  • a resilient quick-fastening device are known in principle, for example from the DE 10 2004 019 173 A1 ,
  • FIG. 4 shows an embodiment as a detailed insight into a specific structural design of a service switching device according to the invention according to FIG. 1
  • FIG. 5 shows a view of the attachment side of a service switching device according to the invention Fig. 4
  • the reference numbers indicate the in the description of FIGS. 1 and 2 already mentioned parts and components.

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  • Patch Boards (AREA)
  • Breakers (AREA)

Claims (7)

  1. Appareillage électrique d'installation (10), doté d'un boîtier en matériau isolant (18) comprenant un côté avant (14) et un côté de fixation (12), lesquels sont reliés au moyen de deux côtés larges et d'un coté étroit d'entrée et un coté étroit de sortie (16, 17), ainsi qu'un chemin de courant qui s'étend entre une borne d'entrée et une borne de sortie (21, 20), lequel peut être mis en circuit ou hors circuit par le biais d'un point de contact principal (22), le point de contact principal (22) pouvant être ouvert ou fermé de manière durable au moins à l'aide d'un mécanisme de commutation (24) pouvant être actionné par une poignée de commutation (26), caractérisé en ce qu'une barre de raccordement phase (92) peut être disposée à l'intérieur du boîtier à proximité du côté de fixation et en s'étendant approximativement en parallèle avec celui-ci qui, dans une situation installée, peut être reliée à la borne de raccordement (21) à proximité du côté étroit d'entrée (17) et sinon est isolée électriquement et mécaniquement des autres composants et sous-ensembles à l'intérieur du boîtier (18), et à l'extrémité libre de laquelle est monté un contact à serrage (91) faisant saillie hors du boîtier (18) du côté de fixation, lequel est destiné à être fixé sur des barres-bus (90, 90b, 90c) dans un tableau de distribution d'installation.
  2. Appareillage électrique d'installation (10) selon la revendication 1, avec lequel le boîtier (18) possède des moyens d'enclenchement destinés à fixer l'appareillage (10) à des barres-bus (90, 90b, 90c) dans un tableau de distribution d'installation.
  3. Appareillage électrique d'installation (10) selon la revendication 2, caractérisé en ce que des barres de raccordement de phase (92) de différentes longueurs peuvent être disposées, la longueur de la barre de raccordement de phase (92) correspondant à la position de la barre-bus (90, 90b, 90c) à raccorder en référence à la borne de raccordement dans la situation installée de l'appareillage électrique d'installation (10).
  4. Appareillage électrique d'installation (10) selon la revendication 3, caractérisé en ce que le boîtier en matériau isolant (18) comprend sur le côté de fixation au moins trois ouvertures (121, 121b, 121c) pour la traversée des bornes de contact (91) depuis les barres de raccordement de phase (92) pouvant être disposées à l'intérieur du boîtier, les ouvertures (121, 121b, 121c) correspondant à la position de trois barres-bus (90, 90b, 90c) dans un tableau de distribution d'installation triphasé lorsque l'appareillage électrique d'installation (10) est utilisé dans un tableau de distribution d'installation, les ouvertures non nécessaires pour la traversée des bornes de contact étant fermées par des caches (122, 122b) amovibles.
  5. Appareillage électrique d'installation (10) destiné à être fixé, au moyen d'un adaptateur pour barre collectrice, sur les barres-bus (90, 90b, 90c) d'un tableau de distribution d'installation ou, au moyen d'un dispositif de fixation rapide, sur un rail porteur profilé normalisé, selon la revendication 1, caractérisé en ce que la barre de raccordement de phase (92) pouvant être disposée est retirée et le boîtier (18) est adapté en conséquence à la fixation au moyen d'un adaptateur pour barre collectrice sur les barresbus (90, 90b, 90c) d'un tableau de distribution d'installation ou au moyen d'un dispositif de fixation rapide sur un rail porteur profilé normalisé.
  6. Tableau de compteur équipé d'un appareillage électrique d'installation (10) selon l'une des revendications précédentes.
  7. Utilisation d'un appareillage électrique d'installation (10) selon l'une des revendications 1 à 5 avec une installation photovoltaïque pour la production d'électricité et l'injection dans le réseau électrique.
EP08773336.6A 2007-04-28 2008-04-25 Appareil de commutation d'installation Active EP2143121B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007020105 2007-04-28
PCT/EP2008/003346 WO2008131915A1 (fr) 2007-04-28 2008-04-25 Appareil de commutation d'installation
DE102008021026A DE102008021026A1 (de) 2007-04-28 2008-04-25 Installationsschaltgerät

Publications (2)

Publication Number Publication Date
EP2143121A1 EP2143121A1 (fr) 2010-01-13
EP2143121B1 true EP2143121B1 (fr) 2015-10-14

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Application Number Title Priority Date Filing Date
EP08773336.6A Active EP2143121B1 (fr) 2007-04-28 2008-04-25 Appareil de commutation d'installation

Country Status (6)

Country Link
US (1) US20100133078A1 (fr)
EP (1) EP2143121B1 (fr)
CN (1) CN101681744A (fr)
CA (1) CA2684527A1 (fr)
DE (1) DE102008021026A1 (fr)
WO (1) WO2008131915A1 (fr)

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ATE360879T1 (de) * 2004-09-20 2007-05-15 Abb Schweiz Ag Leitungsschutzschalter mit verschiebbarem steckkontakt
DE502004003699D1 (de) * 2004-09-20 2007-06-14 Abb Schweiz Ag Leitungsschutzschalter mit Polleiteranzeige
WO2006069634A1 (fr) * 2004-12-24 2006-07-06 Abb Patent Gmbh Dispositif de fixation rapide sur un appareil d'installation electrique
ATE509361T1 (de) * 2005-03-08 2011-05-15 Siemens Ag Elektromechanisches schaltgerät
DE102006030953A1 (de) * 2005-08-17 2007-03-15 Abb Patent Gmbh Elektrische Einrichtung, insbesondere Leitungs- Fehlerstrom- oder Motorschutzschalter

Also Published As

Publication number Publication date
CN101681744A (zh) 2010-03-24
US20100133078A1 (en) 2010-06-03
DE102008021026A1 (de) 2008-11-06
EP2143121A1 (fr) 2010-01-13
CA2684527A1 (fr) 2008-11-06
WO2008131915A1 (fr) 2008-11-06

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