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DE1220519B - Current transformer for overlapping current-carrying, permanently installed conductors, in particular cables or rails - Google Patents

Current transformer for overlapping current-carrying, permanently installed conductors, in particular cables or rails

Info

Publication number
DE1220519B
DE1220519B DER37265A DER0037265A DE1220519B DE 1220519 B DE1220519 B DE 1220519B DE R37265 A DER37265 A DE R37265A DE R0037265 A DER0037265 A DE R0037265A DE 1220519 B DE1220519 B DE 1220519B
Authority
DE
Germany
Prior art keywords
current
carrying
rails
current transformer
permanently installed
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.)
Pending
Application number
DER37265A
Other languages
German (de)
Inventor
Dr-Ing Hans Ritz
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.)
HANS RITZ DR ING
Original Assignee
HANS RITZ DR ING
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 HANS RITZ DR ING filed Critical HANS RITZ DR ING
Priority to DER37265A priority Critical patent/DE1220519B/en
Publication of DE1220519B publication Critical patent/DE1220519B/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20Instruments transformers
    • H01F38/22Instruments transformers for single phase AC
    • H01F38/28Current transformers
    • H01F38/30Constructions

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Description

Stromwandler zum übergreifen stromführender, festverlegter Leiter, insbesondere Kabel oder Schienen Ein Stromwandler zum übergreifen stromführender, festverlegter Leiter, insbesondere Kabel oder Schienen, kann entweder als bekannter Zangenwandler, beispielsweise mit biegsamem Schnittbandkern mit nur einer Schnittstelle, oder nach ebenfalls bereits bekannten Vorschlägen in der Weise ausgebildet werden, daß sein die Meßwicklung (Sekundärwicklung) tragender Kein als offener magnetischer Kreis und etwa U-förinig gestaltet ist, so daß er etwa nach Art einer zweizinkigen Gabel über den stromführenden Leiter, dessen Strom gemessen werden soll, gelegt werden kann.Current transformer for overlapping current-carrying, permanently installed conductors, especially cables or rails A current transformer to reach over current-carrying, Permanently installed conductors, especially cables or rails, can either be known as Clamp converter, for example with a flexible cut ribbon core with only one interface, or be trained according to already known proposals in such a way that that the measuring winding (secondary winding) is not carrying as an open magnetic one Circle and roughly U-shaped, so that it is roughly in the manner of a two-pronged Place the fork over the current-carrying conductor whose current is to be measured can be.

Der Erfindung liegt die Aufgabe zugrunde, hauptsächlich einen Stromwandler der letzteren Art so auszubilden, daß durch Kleinhaltung des Luftspaltes bei der Messung der Meßfehler möglichst klein und die Leistung möglichst groß wird.The object of the invention is mainly to provide a current transformer the latter type so that by keeping the air gap small in the Measurement of the measurement error as small as possible and the performance as large as possible.

Erfindungsgemäß sind die Enden der Kemschenkel als etwa bogenförmige, federnde Kufen gestaltet und, vorzugsweise symmetrisch, einander in solcher Lage gegenüber angeordnet, daß sie beim überschieben über den Leiter federnd auseinandergedrückt werden und sich nach dem überschieben selbsttätig wieder nähern.According to the invention, the ends of the core limbs are approximately arcuate, resilient runners designed and, preferably symmetrically, each other in such a position arranged opposite that they are resiliently pressed apart when pushed over the head and automatically approach again after being pushed over.

Ein solcher Stromwandler, der auch mit einer Handhabe versehen sein kann, hat gegenüber einem Wandler mit beständig offenem, starrem Eisenkern der eingangs erwähnten Art einen wesentlich kleineren Meßfehler. Er eignet sich wegen seiner größeren Leistung in besonderem Maße auch zum Anschluß eines Schreibgerätes oder eines Bimetallrelaisgerätes an seine Sekundärwicklung. Der Vorteil eines solchen Wandlers gegenüber einem Zangenwandler mit aufklappbaren, nicht federnden Kernteilen besteht darin, daß er baulich eirffacher ist, einfacher zu handhaben ist und tätig festgehalten wird.Such a current transformer that can also be provided with a handle can, compared to a converter with a permanently open, rigid iron core has the input mentioned type a much smaller measurement error. He is suitable because of his greater performance in particular for connecting a writing implement or of a bimetal relay device to its secondary winding. The advantage of such Converter compared to a clamp converter with hinged, non-resilient core parts consists in the fact that it is structurally simpler, easier to use and more active is being held.

In der Zeichnung ist ein Stromwandler gemäß der Erfindung beispielsweise näher erläutert: 1 ist der federnde, als mindestens zeitweise offener magnetischer Kreis ausgebildete Kein. Er hat eine im wesentlichen U-förnüge oder lyraförmige Gestalt mit bogenförmigen Kufen 2 an den sich nähernden Enden seiner Schenkel. 3 ist die Sekundärwicklung. 4 ist ein angeschlossenes Meß- oder Anzeigegerät, an dessen Stelle auch ein schreibendes Registriergerät, ein Bimetallrelaisgerät od. dgl. Auswertegerät vorgesehen sein kann. Der Kein 1 und die Spule 3 können mit einer isolierenden Umhüllung 5 versehen sein. Diese kann als Handhabe dienen. Mit 6 ist eine Leitung oder ein Kabel bezeichnet, über das der Wandlerkern 1 geschoben ist. Beim Aufstecken und Abziehen des Wandlers federn die Kernkufen 2 auseinander.In the drawing, a current transformer according to the invention is explained in more detail, for example: FIG. 1 is the resilient, at least temporarily open magnetic circuit. It has an essentially U-shaped or lyre-shaped shape with arched runners 2 at the approaching ends of its legs. 3 is the secondary winding. 4 is a connected measuring or display device, in the place of which a writing recorder, a bimetal relay device or similar evaluation device can be provided. The no 1 and the coil 3 can be provided with an insulating cover 5 . This can serve as a handle. 6 with a pipe or cable is indicated over which the transducer core is pushed. 1 When attaching and removing the converter, the core runners 2 spring apart.

Die Möglichkeiten zur Anwendung und Ausführung des Stromwandlers nach der Erfindung beschränken sich nicht auf die hier beschriebenen und dargestellten Einzelheiten, vielmehr können alle diese Einzelheiten im Rahmen des Erfindungsgedankens abgewandelt werden.The possibilities for the application and design of the current transformer according to of the invention are not limited to those described and illustrated here Details, rather, all of these details within the scope of the inventive concept be modified.

Claims (1)

Patentanspruch: Stromwandler zum übergreifen stromführender, festverlegter Leiter, insbesondere Kabel oder Schienen, unter Verwendung eines als mindestens zeitweise offener magnetischer Kreis ausgebildeten biegsamen Kernes, der die, Meßwicklung (Sekundärwicklung) trägt, d a d u r c h g e - kennzeichnet, daß die Enden der Kernschenkel als etwa bogenförmige, federnde Kufen gestaltet und, vorzugsweise symmetrisch, in solcher Lage einander gegenüber angeordnet sind, daß sie beim überschieben über den Leiter federnd auseinandergedrückt werden und sich nach dem überschieben selbsttätig wieder nähern. In Betracht gezogene Druckschriften: Deutsche Auslegeschrift Nr. 1035 26 7. Carries current transformers to spread current carrying, permanently laid conductors, in particular cables or bars, formed using a form of at least partly open magnetic circuit flexible core, which, measuring winding (secondary winding), d a d u rch g e - denotes that the ends of the: claim Core legs designed as approximately arch-shaped, resilient runners and, preferably symmetrically, are arranged opposite one another in such a position that they are resiliently pushed apart when pushed over the conductor and automatically approach again after being pushed over. Documents considered: German Auslegeschrift No. 1035 26 7.
DER37265A 1964-02-20 1964-02-20 Current transformer for overlapping current-carrying, permanently installed conductors, in particular cables or rails Pending DE1220519B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER37265A DE1220519B (en) 1964-02-20 1964-02-20 Current transformer for overlapping current-carrying, permanently installed conductors, in particular cables or rails

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER37265A DE1220519B (en) 1964-02-20 1964-02-20 Current transformer for overlapping current-carrying, permanently installed conductors, in particular cables or rails

Publications (1)

Publication Number Publication Date
DE1220519B true DE1220519B (en) 1966-07-07

Family

ID=7405157

Family Applications (1)

Application Number Title Priority Date Filing Date
DER37265A Pending DE1220519B (en) 1964-02-20 1964-02-20 Current transformer for overlapping current-carrying, permanently installed conductors, in particular cables or rails

Country Status (1)

Country Link
DE (1) DE1220519B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2543828A1 (en) * 1975-10-01 1977-04-14 Hoechst Ag DEVICE FOR MEASURING ELECTRICAL CURRENT
EP0350255A1 (en) * 1988-07-07 1990-01-10 Dulmison Pty. Limited Improved circuit transformer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1035267B (en) * 1955-12-12 1958-07-31 Licentia Gmbh Measuring transducer designed as a clamp

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1035267B (en) * 1955-12-12 1958-07-31 Licentia Gmbh Measuring transducer designed as a clamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2543828A1 (en) * 1975-10-01 1977-04-14 Hoechst Ag DEVICE FOR MEASURING ELECTRICAL CURRENT
EP0350255A1 (en) * 1988-07-07 1990-01-10 Dulmison Pty. Limited Improved circuit transformer

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