EP2143121A1 - Appareil de commutation d'installation - Google Patents

Appareil de commutation d'installation

Info

Publication number
EP2143121A1
EP2143121A1 EP08773336A EP08773336A EP2143121A1 EP 2143121 A1 EP2143121 A1 EP 2143121A1 EP 08773336 A EP08773336 A EP 08773336A EP 08773336 A EP08773336 A EP 08773336A EP 2143121 A1 EP2143121 A1 EP 2143121A1
Authority
EP
European Patent Office
Prior art keywords
switching device
installation
housing
phase
terminal
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.)
Granted
Application number
EP08773336A
Other languages
German (de)
English (en)
Other versions
EP2143121B1 (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
Original Assignee
ABB 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
Application filed by ABB AG Germany filed Critical ABB AG Germany
Publication of EP2143121A1 publication Critical patent/EP2143121A1/fr
Application granted granted Critical
Publication of EP2143121B1 publication Critical patent/EP2143121B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01H71/08—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 service switching device are known for example from DE 195 26 592 C2 or DE 10 2004 019 175 A1. 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 installation of an electrical house installation.
  • three-phase installation distributors in which three phase rails, also referred to as busbars or busbars, parallel to one another in the mounting plane, are common for the three phases of a power supply system, which today are usually referred to as L1, L2, L3 in a standardized manner, and additionally nor a phase bar are provided for the neutral.
  • the installation can be carried out in such a way that the device is mechanically fastened to a standard profile mounting rail by means of a quick fastening device provided on the device housing.
  • the electrical connection of the device to the phase busbars is made via connecting leads or busbars with corresponding connection lugs inserted in the terminals of the device. Power is supplied to the phase rails themselves via power terminals that require additional space in the distribution board.
  • DE 103 35 496 A1 shows the installation of a service switching device in a three-phase distribution board via a receiving adapter, the adapter is mounted by means of adapter terminals directly mechanically and electrically on the busbars, and the electrical connection through a busbar within the adapter between the adapter terminal and the terminal of the device latched on the adapter.
  • 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 whose free end has a clamping contact protruding from the housing on the fastening side for clamping to busbars 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 to 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 connecting 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 with 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 attachment side at least three openings for the passage of Maisklem- men of arrangeable in the housing phase connection bars, the openings with the position of three busbars in a three-phase installation Expensive 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 openings of the housing assigned to the respective busbars in the installed position of the device are already present; at the beginning of the device production, 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 an installation distributor or by means of a quick-fastening device on a standard profile support rail is adjusted accordingly.
  • a conventional installation switching device which can be mounted in a conventionally known manner, for example by means of an adapter on the busbars of an installation distribution.
  • An inventive switching device is therefore very flexible.
  • the adaptation takes place. whether the device is to be mounted directly or by means of an adapter on the busbars of an installation distribution, simply by selecting whether or not to use a phase connection rail on the inside of the housing on the fastening side.
  • 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 bus terminal block to which it is attached, thus enabling 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 routed away via a connection conductor, or the current can be fed into the busbar system and distributed from there via the integrated phase connection bus, all without having to make any changes or modifications to the service switching device , Further advantageous embodiments and improvements of the invention and further advantages can be taken from the subclaims.
  • FIG. 1 shows an inventive installation switching device in the form of a selective main line circuit breaker, for the direct connection on the phase rail L1,
  • FIG. 2 an installation switching device according to the invention in the form of a selective main circuit breaker, for the direct connection on the phase rail L2,
  • FIG. 3 shows an installation switching device according to the invention in the form of a selective main line circuit breaker for mounting on a standard profiled contact rail with an internal structure which is otherwise unchanged from the embodiments according to FIGS.
  • Figure 4 a detailed view of an inventive installation switching device of Figure 1, as well as
  • FIG. 5 shows a view of the attachment side of an installation switching device according to the invention.
  • 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.
  • Parallel to the series connection from the Main current bimetal 7 and the main contact point 22 extends a bypass path.
  • 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 221, which carries a movable contact piece, and a fixed contact point 222 with a fixed contact piece.
  • the movable contact lever 221 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 thermal bimetallic strip 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 circuit diagram shown in Figure 1 is the following.
  • the impact armature system 23 along the line of action 83 very quickly strikes the movable contact lever 221 away from the fixed contact, thus opening the main circuit at the main contact point 22.
  • 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 thermal bimetal 3 and the separation pad 25 to the connection point 78 at which the main and the secondary current path are combined.
  • 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.
  • phase connection rail 92 is connected via a flexible copper strand 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 mounting 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 impact armature system 23, the arc quenching device (not shown here) and the current limiting resistor 1 are arranged in the transversely bounded by the rear narrow sides, the rear front side and the mounting side crossbar of the T-shaped housing.
  • phase connection openings 121, 121 b, 121c 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.
  • phase connection port 121 c correspon- diert 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 Phasenan gleichöff- 121c 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 other two phase connection openings 121, 121b are covered by cover parts 122, 122b, so that no impurities can penetrate into the interior of the device at these points.
  • the device of Figure 1 is thus adapted for connection to the outside of three busbars of an installation distributor. If a device variant for connection to the middle of the three busbars, 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.
  • FIG. 2 in which, moreover, the components of the internal circuitry of the switching device are schematically indicated by the box 1000 in summary.
  • 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 DE 103 35 496 A1, there in particular the 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 by simply using a phase connection rail of suitable length and opening the corresponding phase connection opening and the other, not required, phase connection openings through a cover plate be closed. 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 connecting conductor or via the phase connecting rail 92 by means of a busbar in an installation distributor, without having to make changes to the device for the various 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.
  • the feed-in conductor is connected to the connection terminal 21 of the device 10 from the house connection fuse.
  • Connection rail 92 supplies the device the busbar 90 with the supply voltage.
  • a 125A total feed is possible. It eliminates the need to provide a separate bus terminal for feeding the supply voltage in the busbar. But it is also possible to supply the 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 service connection box can be used with other functional components, for example a surge arrester.
  • a system for generating electricity by means of a solar cell also called photovoltaic elements or photovoltaic system
  • the photovoltaic elements produce direct current, which is converted into alternating current by means of an inverter.
  • the alternating current thus generated can then be fed via a separate electricity meter in the public grid.
  • an inventive installation switching device according to FIGS. 1 and 2 can also 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 transmission of electricity into the public grid can then either via a connecting conductor, which is inserted to the input terminal 21, or via the phase connection - Rail 92, the power is fed into the busbar system and fed from there from the public grid.
  • FIGS. 1 and 2 are suitable from the housing construction for direct mounting on the busbars of an installation system.
  • the mechanical fastening of a device according to the invention is to be carried out on a standard profile support rail, for example a top hat rail
  • the device requires on its attachment side a corresponding quick fastening device which is set up for standard mounting profile rails.
  • An apparatus according to the invention as shown in FIGS. 1 and 2 can be easily converted into a device suitable for mounting on standard profile mounting rails by the internal components and construction groups are installed in a housing according to FIG. 3.
  • the internal structure of the device, the location and mutual arrangement of all internal components and assemblies is unchanged.
  • a snap-on device for the standard profile support rail in the form of a recess with a retaining lug 902 is formed on the attachment side, which is designed for latching interaction with the standard profile support rail.
  • the phase connection rail 92 is omitted, the chamber provided for receiving it on the inside of the fastening side 12 remains empty.
  • the electrical connection of the device is made by connecting a connecting conductor to the input terminal 21.
  • At the recess 900 may additionally attached a resilient quick-fastening device.
  • Such quick fasteners are known in principle, for example from DE 10 2004 019 173 A1.
  • FIG. 4 shows an embodiment as a detailed insight into a concrete structural design of a service switching device according to the invention according to Figure 1
  • Figure 5 shows a view of the attachment side of a service switching device according to the invention of FIG. 4.
  • the reference numerals designate in the description of the figures 1 and 2 parts and components already mentioned.

Landscapes

  • Patch Boards (AREA)
  • Breakers (AREA)

Abstract

La présente invention concerne un appareil de commutation d'installation comprenant un boîtier en matériau isolant qui comporte un côté frontal et un côté de fixation, lesquels côtés sont reliés au moyen de deux grands côtés et d'un petit côté d'entrée et d'un petit côté de sortie, ainsi qu'une voie de courant qui s'étend entre une borne d'entrée et une borne de sortie et qui peut être mise en position marche ou position arrêt par le biais d'au moins un point de contact principal. Ce point de contact principal peut être ouvert ou fermé de façon permanente au moins au moyen d'un mécanisme de commutation qui peut être actionné par une manette de commutation. Cette invention est caractérisée en ce qu'un rail de raccordement de phase peut être placé à l'intérieur du boîtier, à proximité du côté de fixation et de manière approximativement parallèle à celui-ci, lequel rail de raccordement de phase peut être relié à la borne de connexion à proximité du petit côté d'entrée lorsqu'il se trouve à l'état intégré et, dans le cas contraire, il est électriquement et mécaniquement isolé des autres composants et modules à l'intérieur du boîtier. Un contact de connexion faisant saillie du boîtier et conçu pour être connecté à des rails conducteurs dans un tableau de distribution de l'installation est appliqué à l'extrémité libre dudit rail de raccordement de phase.
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 true EP2143121A1 (fr) 2010-01-13
EP2143121B1 EP2143121B1 (fr) 2015-10-14

Family

ID=39563544

Family Applications (1)

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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DE102012202633B4 (de) 2012-02-21 2024-02-29 Siemens Aktiengesellschaft Elektrischer Schalter, Kontaktelement, Schaltergehäuse sowie Verfahren zum elektrischen Kontaktieren
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ES2703917T3 (es) * 2014-08-01 2019-03-13 Woehner Gmbh & Co Kg Elektrotechnische Systeme Carril de alimentación
GB2531823B (en) * 2015-02-05 2016-09-21 Symmetrical Power Ltd Consumer units, receptacles for consumer units and consumer unit systems
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DE102020209257A1 (de) * 2020-07-22 2022-01-27 Siemens Aktiengesellschaft Befestigungsvorrichtung und Reiheneinbaugerät
CN115021306B (zh) * 2022-06-06 2024-05-14 国网福建省电力有限公司 一种柔性直流调压输出装置

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Also Published As

Publication number Publication date
CN101681744A (zh) 2010-03-24
EP2143121B1 (fr) 2015-10-14
US20100133078A1 (en) 2010-06-03
DE102008021026A1 (de) 2008-11-06
WO2008131915A1 (fr) 2008-11-06
CA2684527A1 (fr) 2008-11-06

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