EP2259284A2 - Unité de convertisseur de courant - Google Patents

Unité de convertisseur de courant Download PDF

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Publication number
EP2259284A2
EP2259284A2 EP10164150A EP10164150A EP2259284A2 EP 2259284 A2 EP2259284 A2 EP 2259284A2 EP 10164150 A EP10164150 A EP 10164150A EP 10164150 A EP10164150 A EP 10164150A EP 2259284 A2 EP2259284 A2 EP 2259284A2
Authority
EP
European Patent Office
Prior art keywords
current transformer
transformer unit
primary conductor
fuse
unit according
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
EP10164150A
Other languages
German (de)
English (en)
Other versions
EP2259284A3 (fr
EP2259284B1 (fr
Inventor
Daniel Mischon
Stefan Wiget
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.)
EFEN GmbH
Original Assignee
EFEN GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=42685676&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2259284(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by EFEN GmbH filed Critical EFEN GmbH
Priority to PL10164150T priority Critical patent/PL2259284T3/pl
Publication of EP2259284A2 publication Critical patent/EP2259284A2/fr
Publication of EP2259284A3 publication Critical patent/EP2259284A3/fr
Application granted granted Critical
Publication of EP2259284B1 publication Critical patent/EP2259284B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • 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
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/0241—Structural association of a fuse and another component or apparatus
    • H01H2085/0291—Structural association with a current transformer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02—Details
    • H01H31/12—Adaptation for built-in fuse
    • H01H31/122—Fuses mounted on, or constituting the movable contact parts of, the switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/0241—Structural association of a fuse and another component or apparatus

Definitions

  • the present invention relates to a power converter unit for a fuse load bar and a fuse load bar with such a power converter unit.
  • Fuse-type switch disconnectors usually low-voltage, high-performance (NH) fuse switch disconnectors
  • the devices generally have one or more fuse bases, each having two fuse receptacles and arranged in a housing.
  • Corresponding fuse links are mounted on one or more switch covers, so that with a closed switch cover the fuse links are inserted into the fuse bases and make a connection between the respective - connectable to the busbars - feed contacts and the outgoing contacts. When opening the cover or the cover, the fuse links are pulled out of the fuse bases so that the connection is broken.
  • current transformers are usually used.
  • Current transformers work like transformers, d. H. a through a primary conductor, in the prior art usually the electrical connection between the busbar terminal and a first fuse receptacle or the electrical connection between a second fuse receptacle and the output terminal of the bar, flowing alternating current induced in a provided by the current transformer secondary conductor from the primary circuit galvanically isolated secondary current, the can be measured and evaluated to determine the primary current.
  • the measurement of the current flow takes place without contact via the outlet provided by the fuse load bar.
  • the current transformer is arranged surrounding the connecting line between the busbar terminal and a first fuse holder or a second fuse holder and an outgoing terminal.
  • plug-on current transformers which have a core and a secondary conductor surrounding it.
  • the core is pushed over a current-carrying line and is electrically insulated from this.
  • the AC current through the line induces an alternating magnetic field in the core, which in turn induces current flow in the secondary conductor surrounding the core in a coil shape.
  • plug-on current transformers have thicknesses in the typical sizes which apply considerably and as a rule cause the fuse switch disconnectors in a control cabinet to be higher than the same bars without current transformers.
  • a NH fuse-switch-disconnector in which, if necessary, a current transformer can be threaded with a slot-shaped opening on the Z-shaped feed contact between the electrical busbar terminal and a first fuse holder.
  • the housing bottom In order to enable such threading, however, the housing bottom must be designed to be open, which leads to considerable constructive measures on the housing. In addition, a corresponding contact protection can hardly be guaranteed.
  • a current transformer unit for a fuse load bar with three current transformers for detecting a current flowing through the fuse load bar current, each of the current transformers each having a primary conductor, a ring surrounding the primary conductor core and a coil surrounding the core secondary conductor, wherein each of the ends of the secondary conductor has a measuring terminal, and wherein the primary conductor has a first end connectable to a feeder terminal of the fuse load bar and a second end connectable to a terminal cable.
  • the current transformer unit according to the invention can be mounted on a commercial fuse load bar without having to remove these from the cabinet.
  • the current transformer unit can be connected to the outgoing connections of the fuse load bar.
  • the fuse load bar must have no special design features for receiving the current transformer element according to the invention at its output range, which deviate from the commercial strips.
  • the current transformer unit according to the invention by its arrangement in the outgoing area of the fuse load bar or by an extension of this area, allows one and the same bar with all known connection techniques, i. especially frame clamp, bolt and nut to provide.
  • each of the three current transformers is designed to be suitable for a power greater than 5 VA flowing through its primary conductor.
  • the present current transformer unit can also be used with open distribution strips, in which the fuse links can be pulled out of the open housing with a suitable tool.
  • the term fuse load bar is therefore intended to include both fuse load switch strips and open distribution strips.
  • the primary conductor unlike plug-in current transformers from the prior art, is a component of the respective current transformer and is connected to the outgoing connection of the fuse load bar.
  • the primary conductor of the current transformer unit according to the invention extends the outgoing terminal of a fuse load bar. Therefore, the second ends of the primary conductors of the power conversion unit are designed so that they can be connected to a connecting cable.
  • the primary conductor is designed as a conductor plate.
  • a prerequisite for the realization of a current transformer unit according to the invention is that, at least in one embodiment, it has a construction dimension whose width and height do not exceed the dimensions of the outlet region of a conventional safety edge.
  • the cores of the three current transformers are arranged so that at least two of the cores have no spatial overlap in a direction parallel to the primary conductors.
  • An offset arrangement of at least one core with respect to the two other cores in a direction substantially parallel to the primary conductors makes it possible to minimize the overall height of the current transformer unit.
  • the three primary conductors are arranged substantially parallel to one another.
  • the primary conductor has a throughbore for screwing the primary conductor to an output terminal of a fuse load bar.
  • a screw connection of the primary conductor to the outgoing connection ensures a good electrical connection between the current transformer unit and the fuse load bar.
  • the second end of the primary conductor may have a throughbore for screwing the primary conductor to a cable lug of a connection cable. It is expedient if the primary conductor in the region of the through hole has a thread for receiving a cross through the cable lug screw or a nut is so connected to the primary conductor, that it has a concentric to the through hole internal thread.
  • the second end of the primary conductor has a clamping structure for receiving a connecting cable.
  • the terminal structure is preferably configured such that a cable end of a connection cable can be accommodated therein and the cable can be pressed by means of the clamping structure against an electrically conductive section in order to establish an electrical connection between the connection cable and the primary conductor.
  • the current transformer unit comprises a housing, wherein in the housing a recess associated with the primary conductor is provided, into which a push insert can be inserted, wherein the push insert has a recess for receiving a connection element.
  • Such an embodiment of the current transformer unit with one, but preferably three drawer elements or thrust inserts for receiving a connection element allows rapid adaptation of the second, the outgoing terminals forming ends of the current transformer unit. Such an adaptation can also take place during assembly on a construction site.
  • the push insert and the recess of the housing are preferably designed such that a arranged in the recess of the push insert connecting element after insertion of the push insert into the corresponding recess of the housing has an electrical contact with the respective primary conductor of the current transformer unit.
  • connection element which is receivable in the recess of the push insert, a clamping structure.
  • the connecting element is a nut which provides a screw for screwing a pole piece to the primary conductor.
  • the push insert and / or the recess in the housing of the current transformer unit has a movable or deformable latching element, and the recess in the housing of the current transformer unit and / or the push insert has a recess for receiving the latching element. In this way, the mechanical stability of the connected by means of the drawer assembly connected to the primary conductor connecting element increases.
  • At least one of the aforementioned objects is also achieved by a fuse load bar with a current transformer element described above.
  • the fuse load bar is a fuse load switch bar comprising a housing base in which three electrical busbar terminals, each connected to a first fuse receptacle, and three outgoing terminals, each connected to a second fuse receptacle, a housing top and a housing Over the upper housing part 29ränkbar arranged switching cover having at least one holding device for a fuse link, wherein in each case a primary conductor of the current transformer unit is connected to an outgoing terminal of the fuse load switching strip.
  • FIGS. 1 to 7 illustrated embodiment of a current transformer unit according to the invention for a fuse load bar has an arrangement of three current transformers 1, 2, 3, which are arranged compactly in a multi-part housing 4, 5, 6.
  • each current transformer of the current transformer unit is particularly well in the sectional view FIG. 5 to recognize.
  • the sectional view FIG. 5 illustrates a section through the current transformer unit in a plane which is perpendicular to the plane defined by the primary conductors 10, 11, 12 of the transducers 1, 2, 3 planes and which passes through the clamping screw 15 of the clamping structure 9 of the upper transducer 3.
  • the converter 3 has a primary conductor 12 designed as a conductor plate, which serves to extend the outgoing terminal of a fuse load switching strip (not shown).
  • the current transformer 3 has a metallic core 18, which is designed as a ring and surrounds the primary conductor 12.
  • the core 18 in turn is surrounded by a secondary conductor 19 whose ends are each connected to a measuring terminal 22, 23.
  • the measuring terminals 22, 23 can be contacted from outside with the aid of test probes in order to detect the measuring current induced in the secondary conductor 19.
  • the primary conductor 12, the annular surrounding core 18 and the secondary conductor 19 together form a transformer which on the primary side has only half a winding formed by the primary conductor 12 extending through the core 18.
  • the two further provided for the other two outgoing terminals of a switching strip converter 1, 2 have an identical structure to the converter 3. They also each have a primary conductor 10, 11, a core 16, 17 and a secondary conductor 20, 21.
  • the primary conductors 10, 11, 12 of the current transformers 1, 2, 3 each have a throughbore 24, 25, 26 at their first end. With the help of these through holes and screws engaging in the through holes, the current transformer unit is electrically and mechanically connected to the outgoing terminals of a fuse load switch bar.
  • the three primary conductors 10, 11 and 12 each have a clamping structure 7, 8, 9 for connecting the primary conductors 10, 11, 12 with cables as outlets of the fuse load switching strip.
  • the concrete structure of the terminal assemblies 7, 8, 9 is particularly good the FIGS. 1 . 6 and 7.
  • clamping structure 7 The detailed construction of the clamping structure 7 will now be described with reference to FIGS FIG. 6 described.
  • the two other terminal assemblies 8 and 9 are identical.
  • the clamping structure 7 has a substantially U-shaped cage bracket 27 which has two leg sections 28, 29 and a bottom section 30 connecting the leg sections 28, 29. Furthermore, a cage yoke 31 is provided, which essentially connects the side sections of the leg sections 28, 29 facing away from the bottom section 30, so that a space is formed between the cage yoke 31 on the one hand and the cage bracket 27 on the other hand, which is also referred to below as a cage cell , In the cage cell, a clamping piece 32 is arranged between the two leg sections 28, 29. This clamping piece 32 divides the cage cell into a terminal space for the primary conductor 11 and a cable space for receiving the cable.
  • connection space is essentially limited by the clamping piece 32 and the bottom portion 30, while the cable space of the clamping piece 32, the two leg portions 28, 29 and the cage yoke 31 is limited.
  • the cage yoke 31 has a threaded through bore through which a threaded pin 14 is connected to a clamping plate 33 which is arranged in the cable space. By turning the threaded pin 14, the clamping plate 33 can be moved in the direction of the clamping piece 32 or from this.
  • the two leg portions 28, 29 have at their end facing away from the bottom portion 30 two cranked sections 34, 35 on. These headed portions 34, 35 are formed such that the distance between them is slightly smaller than the corresponding extent of the cage yoke 31, so that in the example in FIG.
  • both legs 28, 29 have an approximately U-shaped recess which surrounds a corresponding tongue section 36.
  • This tongue portion 36 has been bent in the production something in the direction of the cage cell, so that in the example in FIG. 1 shown position the cage yoke 31 is supported on both sides of the corresponding tongue portion 36.
  • each of the clamping assemblies 7, 8, 9 is fixed to the housing 4 of the transducer device by means of a push insert 37, 38, 39.
  • All thrust inserts 37, 38, 39 are designed identically, so that the specific embodiment now with reference to FIG. 6 will be described with reference to the push insert 37.
  • the push insert 37 has a recess 40 into which the bottom portion 30 of the clamping structure 27 can be inserted.
  • the recess 40 is bounded by lateral cheeks 41, 42 and a front stop surface 43. Furthermore, the push insert on two locking elements (not shown in the figures), which are elastically deformable.
  • the push insert 38 can receive a nut (not shown) which makes it possible to screw a pole piece to the primary conductors 10, 11, 12.
  • the push insert 38 has a recess 44 for receiving a nut.
  • the converter unit has a comparatively small width and height.
  • the two current transformers 1, 2, which belong to the two primary conductors 10, 11, arranged at the same height, ie the centers of their annular cores lie in the plane in which the primary conductors 10, 11 are located.
  • the third transducer is arranged in a different plane, both its primary conductor 12, its core 18 and its secondary conductor 19 are above the other two current transformers 1, 2.
  • the third current transformer 3 in the viewing direction, for example, of FIG. 1 behind the other two current transformers 1, 2 arranged. Ie. the cores 16 and 18 or 17 and 18 of the current transformers 1 and 3 or 2 and 3 do not overlap one another spatially in a direction parallel to the primary conductors 10, 11, 12. In this way, a much narrower packing of the Storm converter 1, 2 and 3 can be achieved, ie, the primary conductors 10 and 12 or 11 and 12 have a much smaller distance from each other, as would be the case if the third converter 3 directly over the two transducers 1 and 2 would be arranged.
EP10164150A 2009-06-04 2010-05-27 Unité de convertisseur de courant Revoked EP2259284B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10164150T PL2259284T3 (pl) 2009-06-04 2010-05-27 Zespół przekładników prądowych

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009026742A DE102009026742A1 (de) 2009-06-04 2009-06-04 Stromwandlereinheit

Publications (3)

Publication Number Publication Date
EP2259284A2 true EP2259284A2 (fr) 2010-12-08
EP2259284A3 EP2259284A3 (fr) 2011-11-02
EP2259284B1 EP2259284B1 (fr) 2012-05-09

Family

ID=42685676

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10164150A Revoked EP2259284B1 (fr) 2009-06-04 2010-05-27 Unité de convertisseur de courant

Country Status (5)

Country Link
EP (1) EP2259284B1 (fr)
AT (1) ATE557412T1 (fr)
DE (2) DE102009026742A1 (fr)
ES (1) ES2386763T3 (fr)
PL (1) PL2259284T3 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2779200A1 (fr) 2013-03-14 2014-09-17 Pronutec, S.A.U. Module de mesure pour base de bloc de fusible
EP2555003B1 (fr) * 2011-08-05 2017-01-04 EFEN GmbH Transducteur de courant et sectionneur de charge étant équipé avec celui-ci
CN107636788A (zh) * 2015-04-09 2018-01-26 埃芬有限责任公司 变流器系统以及带有变流器系统的负载断路开关
CN109564841A (zh) * 2016-05-31 2019-04-02 普洛纽泰克独资有限公司 用于熔断器盒基体的电压分接头系统、熔断器盒基体及结合该系统的测量模块
DE102017011374A1 (de) 2017-12-11 2019-06-13 Fachhochschule Südwestfalen Schutzeinrichtung für Niederspannungsanlagen mit integrierter Messelektronik
DE102017011373A1 (de) 2017-12-11 2019-06-13 Fachhochschule Südwestfalen Mess- und Steuerelektronik für Niederspannungsschaltanlagen
DE102022104394A1 (de) 2022-02-24 2023-08-24 EBG innolab GmbH Elektrische Schutzeinrichtung mit Messmodul
DE102022113758A1 (de) 2022-05-31 2023-11-30 EBG innolab GmbH Elektrische Schutzeinrichtung mit Messmodul
EP4343799A1 (fr) 2022-09-22 2024-03-27 Hager-Electro Sas Module de transformation du courant pour un appareillage electrique de coupure du type sectionneur a fusible nh

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010028679B4 (de) 2010-05-06 2020-08-06 Wöhner GmbH & Co. KG Elektrotechnische Systeme Sicherungsaufnahmevorrichtung, insbesondere für Anschlusskästen von Photovoltaikanlagen
PL2985779T3 (pl) 2014-08-13 2021-10-25 Pronutec, S.A.U. Podstawa uchwytu bezpiecznikowego
DE202017007671U1 (de) 2017-10-03 2024-02-07 Gorlan Team, S.L.U. Kabelkanal, Sicherungssockel und Überwachungssystem
PT3467865T (pt) 2017-10-03 2024-02-20 Gorlan Team Slu Conduta de cabo, bloco de fusíveis e sistema de monitorização

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10002800A1 (de) 2000-01-24 2001-08-09 Woehner Gmbh & Co Kg NH-Sicherungsleiste

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29705224U1 (de) * 1997-03-22 1997-06-26 Mueller Jean Ohg Elektrotech Einrichtung mit einer NH-Sicherungs- oder NH-Lastschaltleiste sowie einem Wandler
DE29807732U1 (de) * 1998-04-24 1998-07-02 Siemens Ag Niederspannungs-Leistungsschalter mit einem eine Vorderwand und eine Rückwand aufweisenden Gehäuse
DE10062644C1 (de) * 2000-12-15 2002-06-20 Mueller Jean Ohg Elektrotech Halter für eine Stromerfassungseinrichtung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10002800A1 (de) 2000-01-24 2001-08-09 Woehner Gmbh & Co Kg NH-Sicherungsleiste

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2555003B1 (fr) * 2011-08-05 2017-01-04 EFEN GmbH Transducteur de courant et sectionneur de charge étant équipé avec celui-ci
WO2014140405A1 (fr) 2013-03-14 2014-09-18 Pronutec, S.A.U. Module de mesure pour socle porte-fusibles
CN105264631A (zh) * 2013-03-14 2016-01-20 普洛纽泰克独资有限公司 用于保险丝盒座的测量模块
EP2779200A1 (fr) 2013-03-14 2014-09-17 Pronutec, S.A.U. Module de mesure pour base de bloc de fusible
CN107636788A (zh) * 2015-04-09 2018-01-26 埃芬有限责任公司 变流器系统以及带有变流器系统的负载断路开关
CN109564841B (zh) * 2016-05-31 2020-05-05 普洛纽泰克独资有限公司 用于熔断器盒基体的电压分接头系统、熔断器盒基体及结合该系统的测量模块
CN109564841A (zh) * 2016-05-31 2019-04-02 普洛纽泰克独资有限公司 用于熔断器盒基体的电压分接头系统、熔断器盒基体及结合该系统的测量模块
DE102017011374A1 (de) 2017-12-11 2019-06-13 Fachhochschule Südwestfalen Schutzeinrichtung für Niederspannungsanlagen mit integrierter Messelektronik
DE102017011373A1 (de) 2017-12-11 2019-06-13 Fachhochschule Südwestfalen Mess- und Steuerelektronik für Niederspannungsschaltanlagen
DE102022104394A1 (de) 2022-02-24 2023-08-24 EBG innolab GmbH Elektrische Schutzeinrichtung mit Messmodul
WO2023161250A1 (fr) 2022-02-24 2023-08-31 EBG innolab GmbH Dispositif de protection électrique comprenant un module de mesure
DE102022113758A1 (de) 2022-05-31 2023-11-30 EBG innolab GmbH Elektrische Schutzeinrichtung mit Messmodul
EP4343799A1 (fr) 2022-09-22 2024-03-27 Hager-Electro Sas Module de transformation du courant pour un appareillage electrique de coupure du type sectionneur a fusible nh
FR3140202A1 (fr) 2022-09-22 2024-03-29 Hager-Electro Sas Module de transformation du courant pour un appareillage électrique de coupure du type sectionneur à fusible NH

Also Published As

Publication number Publication date
EP2259284A3 (fr) 2011-11-02
DE202010017635U1 (de) 2012-03-27
ES2386763T3 (es) 2012-08-29
DE102009026742A1 (de) 2010-12-09
EP2259284B1 (fr) 2012-05-09
PL2259284T3 (pl) 2012-09-28
ATE557412T1 (de) 2012-05-15

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