DE500967C - Device for the remote display of electrical measured values, consisting of an electricity meter that drives two or more DC measuring dynamos - Google Patents

Device for the remote display of electrical measured values, consisting of an electricity meter that drives two or more DC measuring dynamos

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Publication number
DE500967C
DE500967C DEA57278D DEA0057278D DE500967C DE 500967 C DE500967 C DE 500967C DE A57278 D DEA57278 D DE A57278D DE A0057278 D DEA0057278 D DE A0057278D DE 500967 C DE500967 C DE 500967C
Authority
DE
Germany
Prior art keywords
measuring
dynamos
drives
electricity meter
remote display
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
DEA57278D
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.)
Heliowatt Werke Elektrizitaet GmbH
Original Assignee
Heliowatt Werke Elektrizitaet GmbH
Publication date
Priority to DEA57278D priority Critical patent/DE500967C/en
Application granted granted Critical
Publication of DE500967C publication Critical patent/DE500967C/en
Expired legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Synchronous Machinery (AREA)

Description

Vorrichtung zur Fernanzeige elektrischer Meßgrößen, bestehend aus einem Elektrizitätszähler, der zwei oder mehrere Gleichstrommeßdynamos antreibt Es sind Vorrichtungen zur Fernanzeige elektrischer Meßgrößen bekannt, bei denen die Meßgröße auf einen Elektrizitätszähler einwirkt, der eine Gleichstrommeßdynamo antreibt. Die von der Meßdynamo erzeugte Spannung wird in der Ferne angezeigt und ergibt ein Maß für die zu messende elektrische Größe. Ein gewisser Mangel besteht hierbei darin, daß die Meßdynamo, die meist einen dreiteiligen Kollektor hat, eine pulsierende Gleichspannung liefert, deren Schwankungen sich am Anzeigeinstrument störend bemerkbar machen können.Device for the remote display of electrical measured quantities, consisting of an electricity meter that drives two or more DC measuring dynamos There are devices for remote display of electrical measured variables are known in which the measured variable acts on an electricity meter, which has a DC measuring dynamo drives. The voltage generated by the measuring dynamo is displayed in the distance and gives a measure of the electrical quantity to be measured. There is a certain lack here in the fact that the measuring dynamo, which usually has a three-part collector, a supplies pulsating DC voltage, the fluctuations of which are reflected on the display instrument can make disturbing noticeable.

Es ist ferner bekannt, bei derartigen Vorrichtungen durch einen Elektrizitätszähler an Stelle einer einzigen Meßdynamo zwei oder mehrere antreiben zu lassen, die zur Erhöhung der Meßenergie parallel oder in Serie gelegt werden.It is also known in such devices by an electricity meter instead of a single measuring dynamo to drive two or more, the Increasing the measurement energy can be placed in parallel or in series.

Durch die Erfindung wird in diesem Falle ein weiterer Fortschritt erzielt, indem man dafür sorgt, daß die Kommutierung der einzelnen Meßdynamos an verschiedenen Punkten des Umlaufs erfolgt. Die Meßdynamos können hierbei parallel oder in Serie geschaltet sein. Im ersteren Falle ergibt sich der Vorteil, daß eine Unterbrechung des Fernmeßkreises an keiner Stelle des Umlaufs eintreten kann, so daß die Pulsationen des erzeugten Gleichstroms wesentlich gemildert sind. Im zweiten Falle, d. h. bei Serienschaltung der Meßdynamos, sind zwar die Unterbrechungen des Fernmeßkreises im Augenblick der Kommutierung eines Kollektors nicht vermieden. Die Zahl der Kommutierungen und damit die Pulsationen pro Umlauf sind jedoch, wenn zwei Meßdynamos verwendet werden, verdoppelt, so daß das Anzeigeinstrument wegen seiner Trägheit den Schwankungen nicht mehr folgen kann.The invention provides a further advance in this case achieved by ensuring that the commutation of the individual measuring dynamos takes place at various points of circulation. The dynamos can be used in parallel or be connected in series. In the former case, there is the advantage that a Interruption of the telemetry circuit cannot occur at any point in the cycle, so that the pulsations of the direct current generated are significantly alleviated. In the second Trap, d. H. when the measuring dynamos are connected in series, the interruptions of the Fernmeßkreises not avoided at the moment of commutation of a collector. The number of commutations and thus the pulsations per revolution are, however, if two dynamos are used, doubled so that the display instrument because of its indolence can no longer follow the fluctuations.

Die Anwendung einer einzigen Meßdynamo mit erhöhter Lamellenzahl ist eine praktisch nicht brauchbare Lösung, denn einmal sind die verwendeten Meßdynamos Serienerzeugnisse nach Art von Gleichstromamperestundenzählern, die regelmäßig einen dreiteiligen Kollektor besitzen, weil die Anordnung von mehr als drei Kollektorlamellen wegen der Kleinheit der Abmessungen Schwierigkeiten bereiten würde. Schließlich ist die Hintereinanderschaltung von mehreren 1leßdynamos, wie schon erwähnt, häufig eine Notwendigkeit, um die Meßenergie zu erhöhen.The use of a single measuring dynamo with an increased number of lamellas is a practically unusable solution, because once there are the measuring dynamos used Series products of the type of DC ampere-hour meters that regularly have a own three-part collector because the arrangement of more than three collector lamellas would cause difficulties because of the small size of the dimensions. In the end the series connection of several 1leßdynamos, as already mentioned, is common a need to increase the measurement energy.

In den Abbildungen ist der Gegenstand der Erfindung veranschaulicht. Die Abb. i zeigt in schematischer Darstellung das Meßsystem a eines Elektrizitätszählers, durch das zwei Gleichstrommeßdynamos b1 und b2 angetrieben werden. Jede Meßdynamo besitzt einen Kollektor c und einen scheibenförmigen Anker nach Art eines Gleichstromamperestundenzählers. Inder Abb. i sind die beiden Meßdynamos hintereinandergeschaltet, wobei die Summe der erzeugten Meßspannungen durch das Instrument d angezeigt wird. In der Abb. 2 sind die beiden Meßdynamos parallel an das Instrument d angeschlossen. In beiden Fällen ist dafür gesorgt, daß, wie in der Abb. 3 veranschaulicht, die Kommutierung an verschiedenen Punkten des Umlaufs stattfindet. Diese Wirkung ist leicht dadurch zu erreichen, daß die Anker mit den zugehörigen Kollektoren gegeneinander verdreht werden.The subject matter of the invention is illustrated in the figures. Fig. I shows a schematic representation of the measuring system a of an electricity meter, by which two DC measuring dynamos b1 and b2 are driven. Any measuring dynamo has a collector c and a disc-shaped armature in the manner of a direct current ampere hour meter. In Fig. I, the two measuring dynamos are connected in series, with the sum of the generated measuring voltages is displayed by the instrument d. In Fig. 2 the two measuring dynamos are connected in parallel to the instrument d. In both Cases it is ensured that, as illustrated in Fig. 3, the commutation takes place at different points in the cycle. This effect is easy because of it to achieve that the armature rotates with the associated collectors against each other will.

Claims (3)

PATENTANSPRÜCHE: i. Vorrichtung zur Fernanzeige elektrischer Meßgrößen, bestehend aus einem Elektrizitätszähler, der zwei oder mehrere Gleichstrommeßdynamos antreibt, dadurch gekennzeichnet, daß die Kommutierung der einzelnen Meßdynamos an verschiedenen Punkten des Umlaufs erfolgt. PATENT CLAIMS: i. Device for remote display of electrical measured quantities, consisting of an electricity meter, the two or more DC measuring dynamos drives, characterized in that the commutation of the individual measuring dynamos takes place at different points of the circulation. 2. Vorrichtung nach Anspruch i, dadurch gekennzeichnet, daß die Meßdynamos in Serie geschaltet sind. . 2. Apparatus according to claim i, characterized characterized in that the measuring dynamos are connected in series. . 3. Vorrichtung nach Anspruch i und 2, dadurch gekennzeichnet, daß die Meßdynamos parallel geschaltet sind.3. Device according to Claims 1 and 2, characterized in that the measuring dynamos are connected in parallel are.
DEA57278D Device for the remote display of electrical measured values, consisting of an electricity meter that drives two or more DC measuring dynamos Expired DE500967C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA57278D DE500967C (en) Device for the remote display of electrical measured values, consisting of an electricity meter that drives two or more DC measuring dynamos

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA57278D DE500967C (en) Device for the remote display of electrical measured values, consisting of an electricity meter that drives two or more DC measuring dynamos

Publications (1)

Publication Number Publication Date
DE500967C true DE500967C (en) 1930-06-30

Family

ID=6941007

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA57278D Expired DE500967C (en) Device for the remote display of electrical measured values, consisting of an electricity meter that drives two or more DC measuring dynamos

Country Status (1)

Country Link
DE (1) DE500967C (en)

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