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EP4131297A1 - Tiroir-transformateur sommateur de courant, disjoncteur-détecteur de fuites à la terre et procédé de montage - Google Patents

Tiroir-transformateur sommateur de courant, disjoncteur-détecteur de fuites à la terre et procédé de montage Download PDF

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Publication number
EP4131297A1
EP4131297A1 EP22185636.2A EP22185636A EP4131297A1 EP 4131297 A1 EP4131297 A1 EP 4131297A1 EP 22185636 A EP22185636 A EP 22185636A EP 4131297 A1 EP4131297 A1 EP 4131297A1
Authority
EP
European Patent Office
Prior art keywords
plug
current transformer
module
circuit breaker
summation current
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
EP22185636.2A
Other languages
German (de)
English (en)
Other versions
EP4131297B1 (fr
Inventor
Andreas Mundt
Tobias Keimel
Ye Zhang
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP4131297A1 publication Critical patent/EP4131297A1/fr
Application granted granted Critical
Publication of EP4131297B1 publication Critical patent/EP4131297B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase AC
    • H01F38/28—Current transformers
    • H01F38/30—Constructions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase AC
    • H01F38/28—Current transformers
    • H01F38/30—Constructions
    • H01F2038/305—Constructions with toroidal magnetic core
    • 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

Definitions

  • the invention relates to a plug-in summation current transformer for a residual current circuit breaker formed from several modules, for example an FI/LS or RCBO. Furthermore, the invention relates to a modular residual current circuit breaker with such a plug-in summation current transformer and an assembly method for such a residual current circuit breaker.
  • Electromechanical protective switching devices for example circuit breakers, miniature circuit breakers, residual current circuit breakers and arcing or fire protection switches - are used to monitor and protect an electrical circuit and are used in particular as switching and safety elements in electrical energy supply and distribution networks.
  • the protective switching device is electrically conductively connected to an electrical line of the circuit to be monitored via two or more connection terminals in order to interrupt the electrical current in the respective monitored line if necessary.
  • the protective switching device has at least one switching contact which can be opened when a predefined state occurs—for example when a short circuit or a fault current is detected—in order to separate the monitored circuit from the electrical mains.
  • Such protective switching devices are also known as modular installation devices in the field of low-voltage technology.
  • Circuit breakers are specially designed for high currents.
  • a circuit breaker which is also known as a “miniature circuit breaker” (MCB)
  • MBC miniature circuit breaker
  • Circuit breakers and miniature circuit breakers guarantee safe shutdown in the event of a short circuit and protect consumers and systems from overload, for example from damage to the electrical lines due to excessive heating as a result of an excessive electrical current. They are designed to automatically switch off a circuit to be monitored in the event of a short circuit or if an overload occurs and thus to separate it from the rest of the line network.
  • Circuit breakers and miniature circuit breakers are therefore used in particular as switching and safety elements for monitoring and protecting an electrical circuit in electrical power supply networks.
  • Miniature circuit breakers are from the publications DE 10 2015 217 704 A1 , EP 2 980 822 A1 , DE 10 2015 213 375 A1 , DE 10 2013 211 539 A1 or EP 2 685 482 B1 known in principle.
  • a single-pole circuit breaker To interrupt a single phase line, a single-pole circuit breaker is usually used, which usually has a width of one pitch unit (corresponds to approx. 18mm).
  • three-pole miniature circuit breakers are used, which accordingly have a width of three modular widths (corresponds to approx. 54mm).
  • a pole i.e. a switching point, is assigned to each of the three phase conductors. If the neutral conductor is to be interrupted in addition to the three phase conductors, this is referred to as a four-pole device, which has four switching points: three for the three phase conductors and one for the shared neutral conductor.
  • compact miniature circuit breakers which, with a housing width of just one pitch unit, provide two switching contacts for one connecting cable each, i.e. either for two phase cables (compact miniature circuit breakers of type 1+1) or for a phase cable and the neutral conductor (compact miniature circuit breaker of type 1+N). .
  • a residual current circuit breaker is a protective device to ensure protection against a dangerous residual current in an electrical system.
  • a fault current - which is also referred to as differential current - occurs when a live part of the line has an electrical contact to earth. This is the case, for example, when a person touches a live part of an electrical installation: in this case, the current flows as a fault current through the person's body towards earth. To protect against such body currents, the fault current circuit breaker must quickly and safely disconnect all poles of the electrical system from the mains when such a fault current occurs.
  • FI circuit breaker short: FI switch
  • DI switch residual current circuit breaker
  • RCD Residual Current Protective Device
  • mains-voltage-dependent residual current circuit breakers have control electronics with a trigger that is dependent on an auxiliary or mains voltage to fulfill their function
  • mains-voltage-independent residual current circuit breakers do not need an auxiliary or mains voltage to implement the tripping function, but instead have an electronic control system
  • mains-voltage-independent tripping they usually have a slightly larger summation current transformer, which means that a larger induction current can be generated in the secondary winding.
  • the size of the current in a line leading to an electrical load is compared with the size of the current in a line leading back from the electrical load, for example a neutral conductor, using a so-called summation current transformer .
  • This has a ring-shaped magnetic core through which the primary conductors (return electrical lines) are passed.
  • the magnetic core itself is wrapped with a secondary conductor or a secondary winding.
  • the sum of the electrical currents flowing to the consumer is equal to the sum of the electrical currents flowing back from the consumer.
  • the currents are added vectorially, ie directional or signed, it follows that the signed sum of the electric currents in the outgoing and return lines in the fault-free state is equal to zero: no induction current is induced in the secondary conductor.
  • no induction current is induced in the secondary conductor.
  • the sum of the electrical currents flowing in or out which is recorded in the summation current transformer, is not equal to zero.
  • the ones there Any current difference that occurs leads to a voltage proportional to the current difference being induced in the secondary winding, as a result of which a secondary current flows in the secondary winding.
  • This secondary current serves as a residual current signal and, when a predetermined value is exceeded, triggers the protective switching device and as a result—by opening the at least one switching contact of the protective switching device—the correspondingly secured circuit is switched off.
  • the plug-in summation current transformer according to the invention for a residual current circuit breaker formed from several individual modules has a magnetic core which is accommodated and held in a housing and through the opening of which at least two rigid primary conductors are passed.
  • Each of the primary conductors has a first end and a second end for making contact with a respective connection element of the module that is uniquely assigned to the respective primary conductor.
  • the plug-in summation current transformer has at least one guide contour that allows the plug-in summation current transformer to be inserted along a direction of insertion into an installation space that is open at the side and extends over the multiple modules of the residual current circuit breaker, with the ends of the primary conductors moving to a predefined position after insertion occupy the connection elements assigned to them.
  • the use of the plug-in summation current transformer according to the invention has the advantage that the rigid primary conductors are passed through the magnet core before the summation current transformer is installed in the residual current circuit breaker—and thus outside the residual current circuit breaker housing.
  • the magnetic core can be tubular or ring-shaped. If it is wound from strip material, it is called a toroidal strip core. Furthermore, the magnet core can be accommodated and held in its own protective cover.
  • first and second ends of the primary conductors which are contacted with a respective connection element of the residual current circuit breaker in a later assembly step, each have a predefined Position - adjacent to the associated connection element - on.
  • the number of primary conductors to be passed through the magnetic core corresponds to the number of individual modules of the residual current circuit breaker, with each module of the residual current circuit breaker being clearly assigned one of the primary conductors: in the case of a two-pole residual current circuit breaker formed from two modules, there are accordingly two primary conductors - one for contacting a neutral conductor , another for contacting a phase conductor - to be provided. In the case of a three-pole fault current circuit breaker formed from three modules, three primary conductors must be provided - one for contacting the neutral conductor, two more for contacting each phase conductor. In the case of a four-pole residual current circuit breaker formed from four modules, there are four primary conductors: one for contacting the neutral conductor, three others for contacting each phase conductor.
  • the guide contours are formed on the housing of the plug-in summation current transformer and serve to facilitate the insertion of the plug-in summation current transformer in an insertion direction into an installation space that is open at the side and extends over the several modules of the residual current circuit breaker. In particular, they serve to prevent the first and second ends of the primary conductors from colliding with the connection elements of the residual current circuit breaker that protrude into the installation space during insertion in the insertion direction.
  • the guide contours can be webs, lugs or stop surfaces formed on the housing, for example, which enable a predefined spatial positioning of the plug-in summation current transformer during the plug-in movement.
  • each of the primary conductors is at least twice through the opening of the magnetic core. This means that each primary conductor must be routed back at least once on the outside of the summation current transformer. Due to the resulting higher number of turns in the primary conductor, a higher secondary current can be realized on the secondary side of the plug-in summation current transformer.
  • each primary conductor are oriented opposite to one another transversely to the direction of insertion. Due to the opposite orientation of the first and second end of each primary conductor, a certain distance between the ends of the primary conductor can be realized, so that errors in contacting—touching, incorrect contacting, etc.—can be effectively avoided.
  • a module of the residual current circuit breaker is clearly assigned to each primary conductor. The two ends of a primary conductor are thus located “at the same height” in the direction of insertion, so that, after being inserted, they are positioned within the module assigned to them and adjacent to the connection element assigned to them.
  • the first ends of the primary conductors are arranged one behind the other in the plug-in direction.
  • the second ends of the primary conductors are also arranged one behind the other in the insertion direction.
  • the housing has a plurality of guide webs on its outside for guiding the primary conductors. With the help of the guide webs, the primary conductors are wound of the magnetic core is held in a predefined position.
  • the external dimensions of the plug-in summation current transformer can thus be reliably maintained, which is advantageous because of the cramped space conditions within the installation space, in order not to exceed the maximum space available there.
  • the ends of the primary conductors are spaced downwards from the housing. This ensures better accessibility to the primary conductor ends, which is particularly advantageous for the subsequent joining process (welding, soldering). This means that the energy input when joining the primary conductor ends can also be kept low and the risk of damage to the plug-in summation current transformer - in particular the magnetic core - can be reduced.
  • the plug-in summation current transformer has an essentially cuboid outer contour. In this way, a compact design can be realized, with the cuboid outer contour corresponding to the essentially cuboid installation space of the residual current circuit breaker.
  • the modular residual current circuit breaker according to the invention has a first module designed as an MCB module, in which a current path for contacting a phase conductor is arranged, which has a switching contact and a switching mechanism with a magnetic and a thermal tripping system for interrupting the switching contact. Furthermore, the residual current circuit breaker has a second module designed as an RCD module, in which a current path for contacting a neutral conductor is arranged.
  • both modules have an insulating material housing with a front side, a fastening side arranged opposite the front side, and with the front side and the fastening side connecting narrow and broad sides and are arranged next to each other.
  • the insulating housings each have a slide-in opening that extends from one broad side to the other, so that when the MCB module is combined with the RCD module, a cross-module installation space is formed in which a cross-module plug-in summation current transformer of the type described above is accommodated and held .
  • the residual current circuit breaker according to the invention is a combined device design in which the functionality of a pure residual current circuit breaker is combined with the functionality of a circuit breaker: in German, such combination protective switching devices are referred to as FI/LS (fault current/line protection), in English-speaking countries it is the term RCBO (residual current operated circuit breaker with overcurrent protection) is used for this.
  • FI/LS fault current/line protection
  • RCBO residual current operated circuit breaker with overcurrent protection
  • module means that the residual current circuit breaker is made up of two individual modules - MCB module and RCD module. Both modules are structurally stable, closed modules, each with its own insulating housing, each with a slide-in opening, which after the assembly of the two modules - broad side to broad side - form a cross-module installation space for accommodating and installing the plug-in summation current transformer. Inside, the two modules each have a primary conductor current path - in the case of the RCD module for the neutral conductor, in the case of the MCB module for a phase conductor.
  • the assemblies and components required to implement the functionality of the respective module - each with a switching contact, switching and tripping mechanism (with the MCB module for short circuit and thermal overload, with the RCD module for residual current), quenching device for arc quenching, etc. - are arranged in the respective module, ie added and held.
  • the installation space is off-centre between the two narrow sides, i.e. shifted towards one of the two narrow sides, and is accessible from the outside via the two broad sides of each module.
  • the two outer broad sides can be closed using suitable locking elements such as covers or flaps.
  • the off-centre arrangement has the advantage that in this area of the modules forming the residual current circuit breaker there is free installation space which can be used for arranging a large-volume assembly such as the plug-in summation current transformer.
  • the modules - and thus the residual current circuit breaker - can be kept compact, so that each module has a width of only one pitch unit, which corresponds to about 18mm.
  • the residual current circuit breaker has a width of one pitch unit per module—that is, two pitch units in the case of a two-pole device formed from two modules.
  • the modular residual current circuit breaker has at least one further module, which is designed as an MCB module and is arranged next to the first module.
  • additional MCB modules three-pole (one additional MCB module) or four-pole (two additional MCB modules) FI/LS or RCBO devices can be easily implemented. Only the summation current transformer to be inserted in the common, cross-module installation space has to be modified accordingly, ie an additional primary conductor must be provided for each additional module.
  • the individual modules are arranged broadside to broadside next to each other and are fastened to one another with the aid of suitable connecting means, for example clamps, rivets or snap connections.
  • the assembly method has the additional step b1) moving the plug-in summation current transformer in a direction of engagement (R2) oriented transversely to the direction of insertion, the additional step b1) being carried out before the “production of joints”.
  • the ends of the primary conductors are brought into the immediate vicinity of the respective connection element only after the summation current transformer has been pushed into the installation space, so that they can then be connected in a simple manner. This reliably avoids collisions during insertion.
  • step c) "creating joint connections" takes place thermally by soldering or welding.
  • the four-pole residual current circuit breaker 1 designed as an FI/LS or RCBO is made up of four individual modules, an RCD module 2 (shown on the right in Figure 1a) and three MCB modules 3, each of which has an independent, mechanically stable insulating housing 10.
  • the insulating material housings 10 are each designed in a narrow design and have a width B of one pitch unit (1HP, corresponding to approx. 18mm), the envelope surfaces defining the external dimensions being formed by a front side 11, a fastening side 12 arranged opposite the front side 11, and the front and the fastening side 11, 12 connecting narrow sides 13 and broad sides 14 are formed.
  • Narrow sides are each accommodated and held in the respective insulating housing 10 of the respective module with screw terminals 19 for making contact with mains or load-side connecting conductors (not shown).
  • each of the modules 2, 3 has an actuating element 23 arranged in the area of its front side 11.
  • a joint actuation of the individual actuation elements 23 is realized by means of a connecting element 24 coupling the individual actuation elements 23 .
  • insulating material housings 10 in a narrow design have two half-shells, which are joined together at the end of the assembly of the low-voltage protective switching device 1 by means of suitable connecting means, for example rivets or snap-in connections, forming a circumferential joining line.
  • Each half-shell includes one of the broad sides 14 and parts (entirely or completely) of the front, fastening and narrow sides 11, 12, 13.
  • each of the insulating-material housings 10 an insertion opening is formed, which extends orthogonally to the broad sides 14 from one broad side 14 to the other, as a result of which an installation space 16 is formed. Electrical connection elements 26 of the respective module 2 , 3 protrude laterally into the installation space 16 .
  • the installation spaces 16 form a cross-module installation space 16 in which a large-volume assembly, for example a plug-in summation current transformer 100 (see figure 3 ), arranged, ie can be picked up and held.
  • the installation space 16 is eccentric, ie shifted towards one of the narrow sides 13 , is placed in the insulating housing 10 and is accessible via each of the two broad sides 14 .
  • the insertion openings can be closed by means of suitable closure elements, for example a cover 25.
  • FIG 3 a first exemplary embodiment of the plug-in summation current transformer 100 according to the invention is shown schematically in a perspective view.
  • This has an annular or tubular magnet core 102 which is accommodated and held in a housing 101 of the plug-in summation current transformer 100 .
  • four-pole residual current circuit breaker of the type FI / LS or RCBO is, four primary conductors 110, 120, 130, 140 are passed through the opening of the magnetic core.
  • Each of the primary conductors 110, 120, 130, 140 has a first end 111, 121, 131, 141 and a second end 112, 122, 132, 142.
  • each primary conductor 110, 120, 130, 140 are oriented opposite one another transversely to an insertion direction R1, ie the ends each point outwards transversely to the insertion direction, with the first ends 111, 121, 131, 141 and the second ends 112, 122, 132, 142 each form a row extending in the direction of insertion.
  • the plug-in summation current transformer 100 has guide contours 108, which, when the plug-in summation current transformer 100 is pushed into the installation space 16, on corresponding contact surfaces 17 formed there (see Figures 4 and 5 ) slide along.
  • each of the primary conductors 110, 120, 130, 140 passed twice through the magnetic core 102 - and fed back accordingly on the outside of the housing 101.
  • the plug-in summation current transformer 100 has a plurality of guide webs 109, through which the primary conductors 110, 120, 130, 140 are guided at a distance from one another.
  • FIGs 4 and 5 is the one from the figures 1 and 2 known residual current circuit breaker 1 with the mounted therein from figure 3 known plug-in summation current transformer 100 in two side views, which show different assembly states, shown schematically.
  • figure 4 shows the residual current circuit breaker 1 with the plug-in summation current transformer 100 inserted into the installation space 16 immediately at the end of the insertion movement in the insertion direction R1.
  • the plug-in summation current transformer 100 is offset in a second direction, the insertion direction R2, which is from the fastening side 12 to the front side 11 - and thus transversely to the insertion direction R1 - so that the first and second ends 111, 112, 121, 122, 131, 132, 141, 142 of the primary conductors 110, 120, 130, 140 are located directly in the area of the connection element 26 assigned to them.
  • the connecting elements 26 have U-shaped receptacles for the primary conductor ends 111, 112, 121, 122, 131, 132, 141, 142, which are used to mechanically secure the primary conductor ends 111, 112, 121, 122, 131, 132, 141, 142: if the first and second ends 111, 112, 121, 122, 131, 132, 141, 142 of the primary conductors 110, 120, 130, 140 are located directly in the area of the U-shaped receptacle of the connecting element 26 assigned to them, see above the U-shaped receptacles can be pressed together using a tool suitable for this purpose, which initially creates a mechanically stable connection between the respective primary conductor end and the end associated with it Connection element 26 is realized. In order to achieve a highly conductive electrical connection, this connection can then be joined thermally, for example by soldering, hard soldering or welding.
  • the insulating material housings 10 of the individual modules 2, 3 have closable assembly openings (not shown) on their fastening side 12, which enable access to the installation space and are arranged directly below the connection elements 26. In this way, the mechanical and/or thermal joining connection can be carried out using standard tools from the fastening side 12 .
  • the primary conductors 110, 120, 130, 140 are initially routed downwards in the center below the housing 101 of the plug-in summation current transformer 100 before the first and second ends 111, 112, 121, 122, 131, 132, 141, 142 to the outside are angled. This results in a free space between the primary conductor ends 111, 112, 121, 122, 131, 132, 141, 142 and the housing 101, which is defined by the spacing and into which the connection elements 26 protrude during the insertion movement of the insertable summation current transformer 100. without colliding with the primary conductor ends 111, 112, 121, 122, 131, 132, 141, 142.
  • FIG. 6 and 7 is an alternative exemplary embodiment of a plug-in summation current transformer 100' according to the invention and an alternative modular corresponding thereto constructed residual current circuit breaker 1 'shown schematically.
  • figure 6 shows the alternative plug-in summation current transformer 100', which for a two-pole residual current circuit breaker 1' (see figure 7 ) is provided and therefore has only two primary conductors 110', 120', which in turn are passed twice through the magnetic core 102'.
  • the magnetic core 102 ' is now erected, so that the primary conductor 110', 120' from top to bottom - ie passed from the front side 11 to the attachment side 12 through the opening of the magnetic core 102 '.
  • the first and second ends 111', 112', 121', 122' of the two primary conductors 110' and 120' are in turn angled outwards, so that between the primary conductor ends 111', 112', 121', 122' and the Housing 101' of the two-pole plug-in summation current transformer 100' results in a free space defined by the distance from the magnetic core 102', into which the connecting elements 26 protrude without the primary conductor ends 111, 112, 121, 122, 131, 132, 141 , 142 to collide.
  • the two-pole residual current circuit breaker 1' shown in a side view accordingly has only two modules - an RCD module 2 and an MCB module 3 (see figures 1 and 2 ) - which structurally each of the modules 2, 3 of the Figures 1 to 5 correspond to the illustrated and described modules 2, 3 and each have an independent, structurally mechanically stable insulating material housing 10.
  • This design makes it possible to combine modular protective switching devices, for example two-, three- or four-pole residual current circuit breakers 1, 1', with cross-module assemblies such as the plug-in summation current transformer 100, 100', with the respective plug-in summation current transformer 100, 100' is specially adapted to the modular conditions of the respective residual current circuit breaker 1, 1'.
  • FIG figure 8 the assembly method according to the invention for a modular residual current circuit breaker 1, 1' of the type described above is illustrated in FIG figure 8 briefly explained:
  • a first step S1 at least one MCB module 3 is attached to an RCD module 2, so that a residual current circuit breaker 1, 1′ with an installation space 16 covering all modules is formed. If only one MCB module 3 is used, a two-pole residual current circuit breaker 1' is created, and if three MCB modules are installed, a four-pole residual current circuit breaker 1 results.
  • plug-in summation current transformers 100, 100' suitable for the respective residual current circuit breaker 1, 1' are inserted in an insertion direction R1 into the multi-module installation space 16.
  • joints are made between the first ends or second ends 111, 112, 121, 122, 131, 132, 141, 142, 111', 112', 121', 122' of the primary conductors 110, 120, 130 , 140, 110', 120' and the connection element 26 of the respective module 2, 3 which is clearly assigned to the respective primary conductor end 111, 112, 121, 122, 131, 132, 141, 142, 111', 112', 121', 122' manufactured.
  • the joint can be mechanical, for example by clamping or crimping, and also thermal, for example by soldering, brazing or welding. Combinations of the different joining methods are also possible.
  • step S3 in which the insertable summation current transformer 100, 100' is inserted in an insertion direction R2 oriented transversely to the insertion direction is moved until the primary conductor ends 111, 112, 121, 122, 131, 132, 141, 142, 111', 112', 121', 122' are in the immediate vicinity of the connection element 26 assigned to them.
  • the assembly sequence is independent of whether it is a two-pole, three-pole or four-pole residual current circuit breaker 1, 1'.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
  • Transformers For Measuring Instruments (AREA)
EP22185636.2A 2021-08-05 2022-07-19 Tiroir-transformateur sommateur de courant, disjoncteur-détecteur de fuites à la terre et procédé de montage Active EP4131297B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021208514.8A DE102021208514A1 (de) 2021-08-05 2021-08-05 Einschub-Summenstromwandler, Fehlerstromschutzschalter und Montageverfahren

Publications (2)

Publication Number Publication Date
EP4131297A1 true EP4131297A1 (fr) 2023-02-08
EP4131297B1 EP4131297B1 (fr) 2025-09-10

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DE (1) DE102021208514A1 (fr)

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
DE102022207779A1 (de) * 2022-07-28 2024-02-08 Siemens Aktiengesellschaft Einschub-Summenstromwandler-Baugruppe, Reiheneinbaugerät und Montageverfahren

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DE102004034859A1 (de) 2004-07-19 2006-02-16 Siemens Ag Schutzschaltgerät in Schmalbauweise
EP1191562B1 (fr) 2000-09-21 2007-11-07 Siemens Aktiengesellschaft Disjoncteur à boîtier étroit avec dispositif de borne universel
DE102013211539A1 (de) 2012-08-31 2014-03-06 Siemens Aktiengesellschaft Schaltmechanik und elektromechanisches Schutzschaltgerät
EP2980822A1 (fr) 2014-07-30 2016-02-03 Siemens Aktiengesellschaft Appareil de commutation de protection et culasse magnétique
DE102015213375A1 (de) 2015-07-16 2017-01-19 Siemens Ag Thermische Überlast-Auslösevorrichtung und Schutzschaltgerät
DE102015217704A1 (de) 2015-09-16 2017-03-16 Siemens Aktiengesellschaft Lichtbogen-Löschvorrichtung und Schutzschaltgerät
EP2685482B1 (fr) 2012-07-12 2017-05-31 Siemens Aktiengesellschaft Appareil de commutation de protection et culasse magnétique
DE102018202204A1 (de) * 2018-02-13 2019-08-14 Siemens Aktiengesellschaft Netzspannungsunabhängiges Fehlerstrom-Schutzschaltgerät und Montageverfahren

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