DE598677C - Measuring transformer aggregate, consisting of current and voltage transformers, which are magnetically linked to one another - Google Patents

Measuring transformer aggregate, consisting of current and voltage transformers, which are magnetically linked to one another

Info

Publication number
DE598677C
DE598677C DEA56171D DEA0056171D DE598677C DE 598677 C DE598677 C DE 598677C DE A56171 D DEA56171 D DE A56171D DE A0056171 D DEA0056171 D DE A0056171D DE 598677 C DE598677 C DE 598677C
Authority
DE
Germany
Prior art keywords
current
another
voltage
windings
magnetically linked
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
DEA56171D
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.)
AEG AG
Original Assignee
AEG AG
Publication date
Priority to DEA56171D priority Critical patent/DE598677C/en
Application granted granted Critical
Publication of DE598677C publication Critical patent/DE598677C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • H01F38/34Combined voltage and current transformers

Description

Meßwandleraggregat, bestehend aus Strom- und Spannungswandlern, die magnetisch miteinander verkettet sind Die Erfindung bezieht sich auf ein Meßwandleraggregat, das aus Strom- und Spannungswandler besteht, die zwecks Material-und Platzersparnis auf einem gemeinsamen mehrschenkligen Eisenkern angeordnet sind. Derartige Meßwandleraggregate sind bereits vorgeschlagen worden, und zwar sind bei der vorgeschlagenen Anordnung die beidenWandler in der Weise miteinander magnetisch verkettet, daß die Wicklungen des Spannungswandlers auf die beiden äußeren Schenkel eines dreischenkligen Eisenkerns verteilt sind, während die Wicklungen des Stromwandlers auf dem mittleren Schenkel angeordnet sind.Measuring transformer aggregate, consisting of current and voltage transformers, the are magnetically linked to one another The invention relates to a transducer assembly, which consists of current and voltage converters for the purpose of saving material and space are arranged on a common multi-legged iron core. Such transducer assemblies have already been proposed, namely in the proposed arrangement the two transducers are magnetically linked to one another in such a way that the windings of the voltage transformer on the two outer legs of a three-legged iron core are distributed, while the windings of the current transformer on the middle leg are arranged.

Bei dieser Anordnung soll sich der magnetische Kraftfluß des Spannungswandlers lediglich über- die beiden äußeren Schenkel schließen und den mittleren (Stromwandler-) Schenkel nicht durchsetzen. Es hat sich jedoch gezeigt, daß trotzdem, vermutlich infolge von Streuungserscheinungen, ein Teil des Span= nungskraftflusses durch den mittleren Schenkel geht und dadurch die Meßergebnisse des Stromwandlers fälscht.With this arrangement, the magnetic flux of the voltage converter should be just close over the two outer legs and the middle (current transformer) Do not enforce legs. However, it has been shown that anyway, presumably as a result of scattering phenomena, part of the tension force flow through the middle leg goes and thereby falsifies the measurement results of the current transformer.

Dieser Nachteil wird gemäß der Erfindung dadurch vermieden, daß man die Stromwandlerwicklungen im Gegensatz zu den früheren Vorschlägen auf äußeren Schenkeln des gemeinsamen Kerns anordnet. Hierdurch wird erreicht, daß der Stromwandlerkern vollständig außerhalb des magnetischen Schließungskreises des Wandlerflusses liegt, so daß keine merkliche Beeinflussung des Stromwandlers stattfindet.This disadvantage is avoided according to the invention in that one the current transformer windings in contrast to the earlier proposals on external Arranges legs of the common core. This ensures that the current transformer core is completely outside the magnetic circuit of the converter flux, so that there is no noticeable influence on the current transformer.

In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt. In Abb. i ist a ein dreischenkliger Eisenkern, von dessen drei Schenkeln zwei die Wicklungen b des Spannungswandlers tragen, während der dritte mit der Stromwandlerwicklung c versehen ist. Die Sekundärwicklungen sind nicht besonders gezeichnet, sie befinden sich an derselben Stelle wie die zugehörigen Primärwicklungen. Die ganze Einrichtung ist in einem Behältend untergebracht, auf dessen Deckel nur eine Einfachdurchführung e und eine Doppeldurchführung fvorzusehen ist. In dem Punkte g ist ein. Ende der Spannungswandlerwicklung mit einem Ende der Stromwandlerwicklung verbunden.Exemplary embodiments of the invention are shown in the drawing. In Fig. I, a is a three-legged iron core, of whose three legs two are the Carry windings b of the voltage transformer, while the third with the current transformer winding c is provided. The secondary windings are not particularly drawn, they are located in the same place as the associated primary windings. The whole facility is housed in a container with only a single bushing on the lid e and a double feed-through f is to be provided. At point g there is a. end of Voltage transformer winding connected to one end of the current transformer winding.

In Abb. ? ist ein Wandler für dreiphasige Spanmmgs- und zweiphasige Strommessung dargestellt. Die drei Spannungswicklungen b sind mit ihrem einen Ende an die Phasen ti, v, tv angeschlossen, mit ihrem anderen Ende zu einem Nullpunkt vereinigt. Die Stromwicklungen c liegen in den Phasen.tt und tv. Der Eisenkern erhält auf diese Weise fünf bewickelte Schenkel. Wenn der Nullpunkt des Spannungswandlers geerdet ist, ist noch ein sechster unbewickelter Schenkel lt erforderlich, da bei Erdschluß einer Phase die zugehörige Spanntungswicklung kurzgeschlossen wäre und ihr Schenkel keinen Fluß durchlassen würde.In Fig. a converter for three-phase voltage and two-phase current measurement is shown. One end of the three voltage windings b is connected to the phases ti, v, tv, and the other end is combined to form a zero point. The current windings c are in the phases.tt and tv. In this way, the iron core has five wrapped legs. If the zero point of the voltage transformer is grounded, a sixth unwound leg is required, since in the event of a phase fault, the associated voltage winding would be short-circuited and its leg would not let any flow through.

Claims (1)

PATENTANsPRÜcIiE: i. Meßwandleraggregat, bestehend aus Strom- und Spannungswandlern,' die magnetisch miteinander verkettet sind, dadurch gekennzeichnet, daß die Stromwandlerwicklungen auf äußeren Schenkeln des gemeinsamen Kerns angeordnet sind. z. Meßwandleraggregatnach Anspruch i, dadurch gekennzeichnet, daß bei mehrphasiger Ausführung die Stromwandlerwicklungen zweier Phasen auf den beiden äußeren Schenkeln und die Spannungswandlerwicklungen auf den mittleren Schenkeln angeordnet sind. 3. Meßwandleraggregat nach Anspruch z oder --" dadurch gekennzeichnet, daß zwischen den Schenkeln für die Strom- und Spannungswicklung ein unbewickeltcr Schenkel angeordnet ist.PATENT CLAIMS: i. Measuring transformer aggregate, consisting of current and Voltage transformers that are magnetically linked to one another, characterized in that that the current transformer windings are arranged on outer legs of the common core are. z. Measuring transducer assembly according to claim i, characterized in that in the case of a multiphase Execution of the current transformer windings of two phases on the two outer legs and the voltage converter windings are arranged on the middle legs. 3. transducer assembly according to claim z or - "characterized in that between The legs for the current and voltage winding are arranged on an unwound leg is.
DEA56171D Measuring transformer aggregate, consisting of current and voltage transformers, which are magnetically linked to one another Expired DE598677C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA56171D DE598677C (en) Measuring transformer aggregate, consisting of current and voltage transformers, which are magnetically linked to one another

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA56171D DE598677C (en) Measuring transformer aggregate, consisting of current and voltage transformers, which are magnetically linked to one another

Publications (1)

Publication Number Publication Date
DE598677C true DE598677C (en) 1934-06-15

Family

ID=6940386

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA56171D Expired DE598677C (en) Measuring transformer aggregate, consisting of current and voltage transformers, which are magnetically linked to one another

Country Status (1)

Country Link
DE (1) DE598677C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967680C (en) * 1951-02-08 1957-12-05 Licentia Gmbh Measurement converter in V connection
DE1663101B1 (en) * 1961-10-27 1970-03-12 Siemens Ag Measurement group consisting of current and voltage transformers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967680C (en) * 1951-02-08 1957-12-05 Licentia Gmbh Measurement converter in V connection
DE1663101B1 (en) * 1961-10-27 1970-03-12 Siemens Ag Measurement group consisting of current and voltage transformers

Similar Documents

Publication Publication Date Title
DE598677C (en) Measuring transformer aggregate, consisting of current and voltage transformers, which are magnetically linked to one another
DE671469C (en) Frequency converter
DE3340494C2 (en)
DE388555C (en) Circuit for reducing the voltage drop in transformers for rectifiers
DE755688C (en) Transformer adjustable by alternating current auxiliary windings
DE920673C (en) Three or multi-phase transformer
DE715852C (en) DC biased choke coil
DE756373C (en) transformer
DE1044262B (en) Three-phase choke coil, adjustable by direct current pre-magnetization
DE757164C (en) Three or polyphase transformer
DE643006C (en) Power converter
DE1414834A1 (en) Induction device and device for winding its coil
DE438788C (en) Winding arrangement for transformers, the concentrically arranged windings of each phase are distributed over two legs
DE2655986A1 (en) ELECTRICAL COUPLING ARRANGEMENT
DE731464C (en) Test transformer
DE491509C (en) Current transformer set
DE894418C (en) Arrangement for suppressing the fifth harmonic in a three-phase transformer
DE951652C (en) Three-phase four-wire induction counter
DE909837C (en) Combined current and voltage converter
DE585585C (en) Power converter
DE946245C (en) Three-phase transformer or three-phase choke coil with harmonic compensation
DE2036467C3 (en) LC filter circuit for power supply devices with DC voltage output
DE622447C (en) Transformer for regulating the voltages in three-phase systems while maintaining symmetry
DE595470C (en) Transformer for converting three-phase current into multi-phase current for rectifier
DE540929C (en) Multi-phase rotary transformer for regulating the voltage according to size