WO2014090319A1 - Transformateur de courant ainsi que sectionneur à coupure en charge équipé de ce transformateur de courant - Google Patents

Transformateur de courant ainsi que sectionneur à coupure en charge équipé de ce transformateur de courant Download PDF

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Publication number
WO2014090319A1
WO2014090319A1 PCT/EP2012/075470 EP2012075470W WO2014090319A1 WO 2014090319 A1 WO2014090319 A1 WO 2014090319A1 EP 2012075470 W EP2012075470 W EP 2012075470W WO 2014090319 A1 WO2014090319 A1 WO 2014090319A1
Authority
WO
WIPO (PCT)
Prior art keywords
current transformer
current
fuse
transformer system
fuse switch
Prior art date
Application number
PCT/EP2012/075470
Other languages
German (de)
English (en)
Inventor
Martin Schröder
Ludger Sandhäger
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
Application filed by Efen Gmbh filed Critical Efen Gmbh
Priority to CN201280077671.7A priority Critical patent/CN104871013B/zh
Priority to AU2012396428A priority patent/AU2012396428B2/en
Priority to PCT/EP2012/075470 priority patent/WO2014090319A1/fr
Priority to BR112015013818A priority patent/BR112015013818A2/pt
Publication of WO2014090319A1 publication Critical patent/WO2014090319A1/fr
Priority to HK15112365.5A priority patent/HK1211704A1/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/142—Arrangements for simultaneous measurements of several parameters employing techniques covered by groups G01R15/14 - G01R15/26
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G01R15/183—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core
    • 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
    • H01F38/32—Circuit arrangements
    • 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

Definitions

  • the present invention relates to NH fuse-switch disconnectors or NH-fuse switch-disconnectors having a housing with a bottom surface and at least one feeding contact and at least one outgoing contact.
  • Such high-voltage (NH) fuse-load disconnectors or NH-fuse-switch-disconnectors have long been known and serve to provide fused outgoing busbars which can be disconnected under load.
  • the devices generally include one or more fuse bases disposed within the housing.
  • Corresponding fuse links are, for example, mounted on a switch cover, so that when the switch cover is closed, the fuse links are inserted into the fuse bases and connect between the respective - connectable with the busbar - feed contacts and the outgoing contacts. When opening the switch cover, the fuse inserts are pulled out of the fuse bases so that the connection is interrupted.
  • the present invention can also be used in open distribution strips, in which the fuse links can be pulled out of the open housing with a suitable tool.
  • the term NH fuse switch strip should therefore also include the open distribution strips.
  • current transformers are usually used.
  • Current transformers work like transformers, i. an alternating current flowing through the outgoing connection (primary conductor) induces, in a secondary conductor provided by the current transformer, a secondary current which is galvanically isolated from the primary circuit and which can be evaluated to measure the primary current. Thus, the measurement takes place without contact.
  • plug-on current transformers which have a primary conductor (for example in the form of an electrically conductive cylindrical part) and a secondary conductor surrounding it.
  • the current transformer is mounted on the feed contact so that the primary conductor contacts the feed contact and the primary conductor of the current transformer receives the current flowing through the feed contact.
  • the known current transformer systems have in common that the connection of the secondary conductor to appropriate evaluation facilities is cumbersome, since each current transformer must be connected by means of two connecting cables and at the same time to ensure a short-circuit safe installation.
  • the known embodiments also allow only the display of a single parameter, such. B. the detected current.
  • the display of other parameters is either not possible or only possible as an alternative, so that a simultaneous monitoring of several parameters can not be performed.
  • the current transformer system has not only the actual current transformer, but at the same time an evaluation, which determines at least one of the parameters of the group G.
  • the transmitter determines at least two of the parameters from the group G and best all of the above parameters.
  • the current transformer system may preferably have a bus system connection terminal, via which the current transformer system can be connected to a bus system, so that the determined characteristic quantities can be transmitted via this.
  • the parameters for each individual outgoing contact can be easily recorded without it being necessary for a technician to connect the corresponding evaluation electronics on site in advance.
  • the current transformer system has a connection for a display device.
  • the display device can then display the corresponding parameters on a display.
  • the connection for a display device not only has to transmit the determined characteristics, but also has to provide the power supply for the display device.
  • a technician can also read out the desired parameters on site.
  • the current transformer system even has a display device for displaying the determined characteristics, so that it is not necessary to connect a corresponding display.
  • the current transformer is possible to arrange surrounding the outgoing contact, since the corresponding bus system and possibly a display device can be easily connected here.
  • the output contact - or an element connected directly to the output contact - serves as the primary conductor for the current transformer.
  • the current transformer system is either included in the housing of the fuse load disconnector or the fuse switch strip or has its own housing, in which the individual components of the current transformer system are added.
  • the power converter system is partially disposed in the housing of the fuse load disconnector and partially in a separate housing or that the power converter system is arranged in two separate housings.
  • the actual current transformer could be arranged in a separate housing from the transmitter, in which case the two housings, ie the housing of the current transformer and the housing of the transmitter must be connected to each other. This can be done for example by appropriate connection contacts.
  • a triggering monitoring for the at least one fuse link is provided, which is preferably also disposed in the housing. The trip monitoring can also be read out via the bus connection.
  • Figure 1 is a schematic representation of a NH fuse switch disconnector with the current transformer system according to the invention
  • Figure 2 is a sectional view of a housing of a first inventive current transformer system
  • FIG. 3 shows a sectional view of housings of a second current transformer system according to the invention.
  • FIG. 1 shows a schematic representation of an NH fuse switch disconnector 1.
  • This has a housing 2, in which three fuse links 3, 3 'and 3 "are arranged, on whose underside three outgoing connections 4, 5, 6 can be seen, and a current transformer block 9, which is fastened to the underside of the isolator
  • the current transformer system 9 has a connection 8 with which the converter system can be connected to a bus system, ie a data transmission system. to show the determined characteristics.
  • FIG. 2 shows a sectional view through the current transformer system of FIG. 1.
  • the housing 2 has a passage opening 10 for receiving the corresponding outgoing contact. Furthermore, an outgoing terminal 1 1, 12 is shown, the lower part 1 1 is in electrical contact with the inserted in the through hole 10 outgoing contact.
  • the upper part 12 can be moved by means of the screw 13 in the direction of the first part 1 1, so that a corresponding cable, which is to be attached to the outgoing contact, between the two parts 1 1 and 12 can be clamped.
  • the housing has a chamber 14 in which the corresponding evaluation electronics can be placed.
  • FIG. 3 shows an alternative embodiment.
  • the transmitter 15 is no longer housed in the housing part 14, but in a separate housing.
  • a metallic contact block 19 is provided at the top of the housing of the transmitter 15.
  • the current transformer 16, which surrounds a bus bar 17, is connected to a terminal contact 18.
  • the terminal contact 18 is resiliently biased to the terminal block 19, so that an electrical connection between the transmitter 15 on the one hand and the current transformer 16 on the other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Protection Of Transformers (AREA)
  • Fuses (AREA)

Abstract

La présente invention concerne un système de transformateur de courant comprenant un transformateur de courant qui détecte le courant circulant dans le transformateur de courant et le convertit en une tension de mesure, et une électronique d'évaluation qui détermine à partir de cette tension de mesure au moins une des grandeurs caractéristiques du groupe G, comprenant les paramètres I, In, Ist, Imin, Itr, Imax, U, Un, f, fn, PF, où I est le courant électrique qui circule dans le transformateur de courant ; In est l'intensité de référence spécifiée pour laquelle le transformateur de courant a été calculé ; Ist est la valeur de I spécifiée la plus basse à laquelle le transformateur de courant mesure une énergie électrique active à cos phi = 1 ; Imin est la valeur de I au-dessus de laquelle l'écart se situe à l'intérieur des limites d'erreur ; Itr est la valeur de I au-dessus de laquelle l'écart se situe à l'intérieur des limites d'erreur les plus basses correspondant à la classe de précision spécifiée pour le système de transformateur de courant ; Imax est la valeur maximale de I à laquelle l'écart se situe à l'intérieur des limites d'erreur ; U est la tension électrique aux bornes du transformateur de courant ; Un est la tension de référence spécifiée ; f est la fréquence de la tension aux bornes du transformateur de courant ; fn est la fréquence de référence spécifiée ; PF est le facteur de puissance ou cos φ, c'est-à-dire le cosinus du déphasage φ entre I et U.
PCT/EP2012/075470 2012-12-13 2012-12-13 Transformateur de courant ainsi que sectionneur à coupure en charge équipé de ce transformateur de courant WO2014090319A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN201280077671.7A CN104871013B (zh) 2012-12-13 2012-12-13 电流互感器和具有这种电流互感器的负载中断器
AU2012396428A AU2012396428B2 (en) 2012-12-13 2012-12-13 Current transformer and load interrupter having such a current transformer
PCT/EP2012/075470 WO2014090319A1 (fr) 2012-12-13 2012-12-13 Transformateur de courant ainsi que sectionneur à coupure en charge équipé de ce transformateur de courant
BR112015013818A BR112015013818A2 (pt) 2012-12-13 2012-12-13 transformador de corrente e seccionador de corte em carga com transformador de corrente
HK15112365.5A HK1211704A1 (en) 2012-12-13 2015-12-16 Current transformer and load interrupter having such a current transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2012/075470 WO2014090319A1 (fr) 2012-12-13 2012-12-13 Transformateur de courant ainsi que sectionneur à coupure en charge équipé de ce transformateur de courant

Publications (1)

Publication Number Publication Date
WO2014090319A1 true WO2014090319A1 (fr) 2014-06-19

Family

ID=47520032

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/075470 WO2014090319A1 (fr) 2012-12-13 2012-12-13 Transformateur de courant ainsi que sectionneur à coupure en charge équipé de ce transformateur de courant

Country Status (5)

Country Link
CN (1) CN104871013B (fr)
AU (1) AU2012396428B2 (fr)
BR (1) BR112015013818A2 (fr)
HK (1) HK1211704A1 (fr)
WO (1) WO2014090319A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015105441A1 (de) * 2015-04-09 2016-10-13 Efen Gmbh Stromwandlersystem sowie Lasttrenner mit einem solchen
EP3671786A1 (fr) 2018-12-19 2020-06-24 Jean Müller GmbH Elektrotechnische Fabrik Agencement d'une pièce de support, d'une pièce supérieure et d'un couvercle d'un dispositif de commutation pourvu de composants d'une électronique intégrés dans ledit agencement

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1058283A2 (fr) * 1999-06-04 2000-12-06 M. Schneider, Schaltgerätebau und Elektroinstallationen Gesellschaft m.b.H. Système de surveillance pour appareils de commutation à basse tension
EP2053627A2 (fr) * 2007-10-25 2009-04-29 EFEN GmbH Séparateur de charge de sécurité NH doté d'un transformateur d'intensité
EP2181907A1 (fr) * 2008-10-29 2010-05-05 Siemens Aktiengesellschaft Système de diagnostic d'aiguillages
DE102011000593A1 (de) * 2010-02-11 2011-08-11 Delta Control Gesellschaft für Automation mbH, 50997 Verfahren und Vorrichtung zur Erfassung von elektrischen Energiedaten
FR2967832A1 (fr) * 2010-11-22 2012-05-25 Schneider Electric Ind Sas Depart equipe de moyens de protection et de mesure pour tableau basse tension
EP2555003A2 (fr) * 2011-08-05 2013-02-06 EFEN GmbH Transducteur de courant et sectionneur de charge étant équipé avec celui-ci

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1058283A2 (fr) * 1999-06-04 2000-12-06 M. Schneider, Schaltgerätebau und Elektroinstallationen Gesellschaft m.b.H. Système de surveillance pour appareils de commutation à basse tension
EP2053627A2 (fr) * 2007-10-25 2009-04-29 EFEN GmbH Séparateur de charge de sécurité NH doté d'un transformateur d'intensité
DE102007051419A1 (de) 2007-10-25 2009-04-30 Efen Gmbh NH-Sicherungslasttrenner mit Stromwandler
EP2181907A1 (fr) * 2008-10-29 2010-05-05 Siemens Aktiengesellschaft Système de diagnostic d'aiguillages
DE102011000593A1 (de) * 2010-02-11 2011-08-11 Delta Control Gesellschaft für Automation mbH, 50997 Verfahren und Vorrichtung zur Erfassung von elektrischen Energiedaten
FR2967832A1 (fr) * 2010-11-22 2012-05-25 Schneider Electric Ind Sas Depart equipe de moyens de protection et de mesure pour tableau basse tension
EP2555003A2 (fr) * 2011-08-05 2013-02-06 EFEN GmbH Transducteur de courant et sectionneur de charge étant équipé avec celui-ci

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015105441A1 (de) * 2015-04-09 2016-10-13 Efen Gmbh Stromwandlersystem sowie Lasttrenner mit einem solchen
WO2016162404A1 (fr) * 2015-04-09 2016-10-13 Efen Gmbh Système convertisseur de courant et sectionneur équipé d'un tel système
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
EP3671786A1 (fr) 2018-12-19 2020-06-24 Jean Müller GmbH Elektrotechnische Fabrik Agencement d'une pièce de support, d'une pièce supérieure et d'un couvercle d'un dispositif de commutation pourvu de composants d'une électronique intégrés dans ledit agencement
EP3671785A1 (fr) * 2018-12-19 2020-06-24 Jean Müller GmbH Elektrotechnische Fabrik Agencement d'une partie porteuse et d'une partie supérieure d'un dispositif de commutation doté des composants d'une électronique intégrés dans l'agencement

Also Published As

Publication number Publication date
AU2012396428B2 (en) 2017-01-05
HK1211704A1 (en) 2016-05-27
CN104871013A (zh) 2015-08-26
CN104871013B (zh) 2019-02-26
BR112015013818A2 (pt) 2017-07-11
AU2012396428A1 (en) 2015-06-11

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