DE576371C - Single-line current transformer - Google Patents

Single-line current transformer

Info

Publication number
DE576371C
DE576371C DEK118806D DEK0118806D DE576371C DE 576371 C DE576371 C DE 576371C DE K118806 D DEK118806 D DE K118806D DE K0118806 D DEK0118806 D DE K0118806D DE 576371 C DE576371 C DE 576371C
Authority
DE
Germany
Prior art keywords
current transformer
line current
conductor
iron core
primary conductor
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.)
Expired
Application number
DEK118806D
Other languages
German (de)
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.)
Koch and Sterzel AG
Original Assignee
Koch and Sterzel AG
Publication date
Priority to DEK118806D priority Critical patent/DE576371C/en
Application granted granted Critical
Publication of DE576371C publication Critical patent/DE576371C/en
Expired 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)

Description

Einleiterstromwandler Bei Einleiterstromwandlern hat man bisher zur Verringerung der Meßfehler und Steigerung der Leistung die Anzahl der Eisenkerne vermehrt. Man erhält dann aber eine große Eisenkernhöhe, die in bezug auf den größeren Isolationsaufwand und auch räumlich unter Umständen sehr unerwünscht ist.Single-line current transformers With single-line current transformers, one has so far to Reducing the measurement errors and increasing the performance the number of iron cores increased. But then one obtains a large iron core height, which in relation to the larger one Isolation effort and also spatially is very undesirable under certain circumstances.

Es ist auch bereits bekannt, einem Ringkern oder zwei Schenkeln eines Stromwandlers einen magnetischen Nebenschlußweg zu geben, um die Eisenkernhöhe zu verringern.It is also already known to have a toroidal core or two legs Current transformer to give a magnetic shunt path to the iron core height to decrease.

Bei wesentlich kleineren Abmessungen @erhält man aber eine sehr erhebliche Leistungssteigerung, wenn der Eisenkern des Eiuleiierstromwandlers, also eines Wandlers mit nur einem Leiter als Primärwicklung, erfindungsgemäß mindestens drei Fenster hat und der Einleiter sie alle nacheinander durchsetzt. Dadurch erhält man mehrere in Reihe geschaltete Einleiterstromwandler, die dadurch so miteinander vereinigt sind, daß Teile des einen Einleiterstromwandlers auch für den anderen Einleiterstromwandler mitbenutzt werden können. Durch diese günstige Vereinigung bilden die Eisenkerne der anderen Einleiterstromwandler für den jeweilig betrachteten Einleiterstromwandler Nebenschlußwege. Der schlangenförmig geführte Primärleiter läßt sich bei der praktischen Ausführung bequem aus Einzelstäben zusammensetzen, so daß selbst bei starken Querschnitten des Primärleiters ein einfacher Zusammenbau dieses neuen Stromwandlertyps ermöglicht wird.With much smaller dimensions @ one obtains a very substantial one Increase in performance when the iron core of the Eiuleiierstromwandler, i.e. a transformer with only one conductor as the primary winding, according to the invention at least three windows and the discharger enforces them all one by one. This gives you several single-conductor current transformers connected in series, which are thus united with one another are that parts of a single-line current transformer are also used for the other single-line current transformer can also be used. It is through this favorable union that the iron cores form the other single-line current transformer for the single-line current transformer under consideration Shunt paths. The serpentine primary conductor can be used in the practical Easily assemble the design from individual rods, so that even with thick cross-sections of the primary conductor enables this new type of current transformer to be assembled easily will.

In den Abbildungen sind Ausführungsbeispiele gemäß der Erfindung dargesteht. Nach Abb. i durchsetzt der Primärleiter i i alle durch die Nebenschlußwege i q. gebildeten Fenster des Eisenkernes 13. Die Sexundärwicklung ist dabei auf alle Schenkel verteilt. Der Primärleiter i i durchsetzt also als Einleiter nacheinander die Fenster des Eisenkernes, wobei es auch möglich ist, weitere Nebenschlußwege für den den jeweiligen Primärleiter umschließenden Teil des Eisenkernes vorzusehen.In the figures, exemplary embodiments according to the invention are shown. According to Fig. I, the primary conductor ii passes through all of the shunt paths i q. formed window of the iron core 13. The sexual secondary winding is distributed over all legs. The primary conductor ii thus penetrates the windows of the iron core one after the other as a single conductor, it also being possible to provide further shunt paths for the part of the iron core surrounding the respective primary conductor.

Abb.2 läßt die Stromrichtungen des Primärleiters in den einzelnen Kernfenstern erkennen.Fig.2 shows the current directions of the primary conductor in the individual Recognize core windows.

In Abb.3 ist die Herstellung des S-förmig durch den Eisenkern gezogenen Primärleiters i i durch einzelne Flachstäbe 2 i, 22, 23 gezeigt, deren Enden entsprechend über metallische Hülsenverbindungen 2¢, 25 leitend miteinander verbunden sind. Die frei bleibenden Enden 26, 27 dienen zum Anschluß des Einleiterwandlers. Die Stäbe 21, 22, 23 können von den Wicklungen auf den Schenkeln des Eisenkernes durch Luft oder gestrichelt eingezeichnete Isolierhülsen 28 getrennt sein.In Fig.3 is the manufacture of the S-shaped drawn through the iron core Primary conductor i i shown by individual flat bars 2 i, 22, 23, the ends of which correspond accordingly are conductively connected to one another via metallic sleeve connections 2 [, 25]. the ends 26, 27 remaining free are used to connect the single-conductor converter. The bars 21, 22, 23 can be airborne from the windings on the legs of the iron core or insulating sleeves 28 drawn in dashed lines.

In an sich bekannter Weise kann man den nach der Erfindung ausgebildeten Einleiterstromwandler in ein Isoliergehäuse einsetzen in der Ausbildung als Durchführungs-bzw. Topfstromwandler. Die Anschlußenden des Einleiterwandlers können bei Ausbildung nach den Abb, i bis 3 in eine Durchführungsachse abgekröpft werden.In a manner known per se, the trained according to the invention can be used Use single-conductor current transformers in an insulating housing in the form of a bushing or. Pot-type current transformer. The connection ends of the single-conductor converter can be used when training be cranked according to the Fig, i to 3 in a bushing axis.

Claims (2)

PATENTANSPRÜCHE; i. Einleiterstromwaridler, dadurch gekennzeichnet, daß sein Eisenkern mindestens drei Fenster hat und der Einleiter sie alle nacheinander durchsetzt. PATENT CLAIMS; i. Einleiterstromwaridler, characterized in that that its iron core has at least three windows and that the discharger has them all one after the other interspersed. 2. Einleiterstromwandler nach Anspruch i, dadurch gekennzeichnet, daß der Primärleiter. aus Einzelstäben zusammengesetzt ist.2. Single-line current converter according to claim i, characterized in that the primary conductor. is composed of individual rods.
DEK118806D Single-line current transformer Expired DE576371C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK118806D DE576371C (en) Single-line current transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK118806D DE576371C (en) Single-line current transformer

Publications (1)

Publication Number Publication Date
DE576371C true DE576371C (en) 1933-05-11

Family

ID=7244179

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK118806D Expired DE576371C (en) Single-line current transformer

Country Status (1)

Country Link
DE (1) DE576371C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE922001C (en) * 1950-10-22 1955-01-07 Purrmann & Herr G M B H Composable primary winding for current transformers made of solid copper
US2892167A (en) * 1952-12-08 1959-06-23 Ritz Hans Tubular bar current transformer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE922001C (en) * 1950-10-22 1955-01-07 Purrmann & Herr G M B H Composable primary winding for current transformers made of solid copper
US2892167A (en) * 1952-12-08 1959-06-23 Ritz Hans Tubular bar current transformer

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