DE415957C - Three-phase current meter with two drive systems in the two watt meter circuit for simultaneous, separate indication of active and reactive consumption - Google Patents

Three-phase current meter with two drive systems in the two watt meter circuit for simultaneous, separate indication of active and reactive consumption

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Publication number
DE415957C
DE415957C DEK88200D DEK0088200D DE415957C DE 415957 C DE415957 C DE 415957C DE K88200 D DEK88200 D DE K88200D DE K0088200 D DEK0088200 D DE K0088200D DE 415957 C DE415957 C DE 415957C
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DE
Germany
Prior art keywords
active
drive systems
meter
simultaneous
consumption
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
DEK88200D
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German (de)
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JOHANNES DORNIG
Original Assignee
JOHANNES DORNIG
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Application filed by JOHANNES DORNIG filed Critical JOHANNES DORNIG
Priority to DEK88200D priority Critical patent/DE415957C/en
Application granted granted Critical
Publication of DE415957C publication Critical patent/DE415957C/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
    • G01R11/48Meters specially adapted for measuring real or reactive components; Meters specially adapted for measuring apparent energy

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Protection Of Transformers (AREA)

Description

Drehstrom-Zähler mit zwei Triebsystemen in der Zweiwattmeter-Schaltung für gleichzeitige, getrennte Angabe von Wirk- und Blindverbrauch. In der Patentschrift .1.1325j ist ein Drehstrom-Zähler mit zwei Wirkverbrauchstriebsvstemen in der Zweiwattmeter-Schaltung beschrieben, der unter Anwendung von Differentialgetrieben gestattet, gleichzeitig an getrennten Zählwerken Wirk- und Bl:nAverbrauch abzulesen.Three-phase current meter with two drive systems in the two watt meter circuit for simultaneous, separate indication of active and reactive consumption. In the patent specification .1.1325j is a three-phase current meter with two active consumption drive systems in a two-watt meter circuit described, which allows the use of differential gears, simultaneously Active and Bl: nA consumption can be read on separate counters.

Soll nun ein solcher Zähler in einem Drehstromnetz mit Nulleiter verwendet werden und nicht nur den Verbrauch zwischen den Phasen (z. B. Motorenbelastung), sondern auch zwischen einer Phase und dem Nulleiter (z. B. Lichtbelastung, aber auch irgendeine a..dcre induktive Belastung) richtig anzeigen, so werden erfahrungsgemäß beide Triebsysteme, die mit den üblichen Hauptstrom-und Spannungsspulen den Verbrauch zwischen den Phasen messen, mit hintereinandergeschalteten, zusätzlichen Stromspulen versehen, die nur ein Drittel der Windungszahl der Hauptstromspulen haben. Diese zusätzlichen Spulen werden hintereinandergeschaltet, und der Anfang ihrer Zuleitung wird an die Phase angeschlossen, in der keine Hauptstromspule liegt. Auf diese Weise wird der Wirk- und Blindverbrauch zwischen Nulleiter und einer an das andere Ende der Zusatzspulen angeschlossenen Leitung, also zwischen Nulleiter und der Phase, in der keine Hauptstromspule liegt, gemessen. Wichtig ist, daß der zusätzlich zu messende Verbrauchsstrom in beiden Triebsystemen zur Wirkung gebracht wird, denn die Wirk- sowohl wie die Blindverbrauchsangaben des Zählers setzen sich aus den Wirkungen beider Triebsysteme zusammen.Should such a meter now be used in a three-phase network with a neutral conductor and not just the consumption between the phases (e.g. engine load), but also between a phase and the neutral conductor (e.g. light exposure, but also show any a..dcre inductive load) correctly, so experience has shown both propulsion systems with the usual main stream and Voltage coils Measure the consumption between the phases, with additional ones connected in series Provided current coils that have only a third of the number of turns of the main current coils to have. These additional coils are connected in series, and the beginning their lead is connected to the phase in which there is no main current coil. In this way, the active and reactive consumption between the neutral conductor and one on the other end of the additional coils connected line, i.e. between the neutral conductor and the phase in which there is no main current coil measured. It is important that the additionally to be measured consumption flow brought into effect in both drive systems because the active as well as the reactive consumption data of the meter are set from the effects of both drive systems together.

Die Zeichnung stellt in Abb. i ein Schaltungsschema eines Zählers nach der Erfindung dar, Abb. 2 ein dazugehöriges Vektorendiagramm, aus dem hervorgeht, daß die einphasige Belastung zwischen dem Nulleiter und der Phase S richtig gemessen wird.The drawing shows in Fig. I a circuit diagram of a meter according to the invention, Fig. 2 is an associated vector diagram from which it can be seen that the single-phase load between the neutral conductor and phase S is measured correctly will.

Die beiden Wirkverbrauchstriebsysteme z und 2, die durch die beiden Differentialgetriebe W und B miteinander gekuppelt sind, von denen das addierende Getriebe W das Wirkverbrauchszählwerk und das subtrahierende Getriebe B das Blindverbrauchszählwerk antreibt, sind mit ihren Hauptstromspulen 3 und 4 und ihren Spannungsspulen 5 und 6 in der Zweiwattmeter-Schaltung geschaltet. Auf beiden Triebsystemen sind die Zusatzspulen 7 und 8 angebracht, die nur ein Drittel der Windungszablen der Hauptstroinspulen 3 und 4 haben. Ihre Schaltung geht aus dem Schema ohne weiteres hervor. Die Belastung 9, die zwischen Nulleiter und Phase S (über die Zusatzspulen) angeschlossen ist, wird richtig mitgemessen. Das ergibt sich insonderheit aus dem Diagramm der Abb. 2.The two active consumption drive systems z and 2, which are coupled to one another by the two differential gears W and B , of which the adding gear W drives the active consumption counter and the subtracting gear B drives the reactive consumption counter, are with their main current coils 3 and 4 and their voltage coils 5 and 6 in switched to the two watt meter circuit. The additional coils 7 and 8, which have only a third of the winding numbers of the main current coils 3 and 4, are attached to both drive systems. Your circuit can be seen from the scheme without further ado. The load 9, which is connected between the neutral conductor and phase S (via the additional coils), is also measured correctly. This can be seen in particular from the diagram in Fig. 2.

Das Feld 3 cD_i. der Zusatzspule 7 (, weil nur ein Drittel der Windungszahl der Hauptstromspulen, und _js, weil die Spulen umgekehrt angeschlossen sind) arbeitet im Triebsystem i mit dem Feld e-ERS der Spannungsspule 5 zusammen, im Triebsystem 2 wirkt ein gleiches Feld 1 cb_is der Zusatzspule 8 mit dem Feld cDETS der Spannungsspule 6 zusammen. Das Diagramm ist für induktionsfreie Belastung gezeichnet, infolgedessen sind die inneren Phasenverschiebungen zwischen den zusammenwirkenden Feldern 6o° bzw. i2o°. Tritt eine äußere nacheilende Phasenverschiebung S auf, so verändern sich die inneren Verschiebungen in (6o'-'s) bzw. (i2o°_S). Die bei einer derartigen Phasenverschiebung von S vorhandenen Drehmomente der beiden Triebsysteme sind: s cD-JS # cDERs ' sin (i2o°-S) und D2 - cb_.is # fiETS # sin (60' _S) Das addierende Differentialgetriebe W wird also auf seinem zugehörigen Zählwerk bei seinen Angaben (außer den Werten des Verbrauchs zwischen den Phasen) Werte berücksichtigen, die, sofern cb_JS proportional js (dem Strom der Verbraucher 9) und cDERs und er..TS proportional der verketteten Spannung E sind, proportional sind Es wird also die Leistung zwischen Nulleiter und einer Phase richtig gemessen, denn ist die Phasenspannung, da mit E die verkettete Spannung bezeichnet war. Das mit einer zusätzlichen übersetzung ausgerüstete subtrahierende Differentialgetriebe B berücksichtigt Werte, die proportional sind.The field 3 cD_i. The additional coil 7 (because only a third of the number of turns of the main current coils, and _js, because the coils are connected in reverse) works in drive system i with the field e-ERS of voltage coil 5, in drive system 2 an identical field 1 cb_is of the additional coil acts 8 together with the field cDETS of the voltage coil 6. The diagram is drawn for induction-free loading, as a result of which the internal phase shifts between the interacting fields are 6o ° and i2o °. If an outer lagging phase shift S occurs, the inner shifts change in (6o '-' s) or (i2o ° _S). The torques of the two drive systems present with such a phase shift of S are: s cD-JS # cDERs 'sin (i2o ° -S) and D2 - cb_.is # fiETS # sin (60' _S) The adding differential gear W is therefore open its associated counter in its specifications (except for the values of the consumption between the phases) take into account values that are proportional, provided that cb_JS is proportional to js (the current of consumers 9) and cDERs and er..TS are proportional to the interlinked voltage E. So the power between neutral and a phase is measured correctly, because is the phase voltage, as E denoted the line-to-line voltage. That with an additional translation equipped subtracting differential gear B takes into account values that are proportional are.

Claims (1)

PATENTANSPRUCH Drehstrom-Zähler mit zwei Triebsystemen in der Zweiwattmeter-Schaltung für gleichzeitige, getrennte Angabe von Wirk-und Blindverbrauch nach Patent 413255, dadurch gekennzeichnet, daß beide Triebsysteme mit hintereinandergeschalteten, zusätzlichen Stromspulen versehen sind, die nur ein Drittel der Windungszahl der Hauptstromspulen haben und eine zusät4-liche Messung des Wirk- und Blindverbrauchs zwischen Nulleiter und der Phase, in derkeineHauptstromspuleliegt,gestatten. PATENT CLAIM Three-phase current meter with two drive systems in the two-watt meter circuit for simultaneous, separate indication of active and reactive consumption according to patent 413255, characterized in that both drive systems are provided with additional current coils connected in series, which have only a third of the number of turns of the main current coils and allow an additional measurement of the active and reactive consumption between the neutral conductor and the phase in which there is no main current coil.
DEK88200D 1924-01-24 1924-01-24 Three-phase current meter with two drive systems in the two watt meter circuit for simultaneous, separate indication of active and reactive consumption Expired DE415957C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK88200D DE415957C (en) 1924-01-24 1924-01-24 Three-phase current meter with two drive systems in the two watt meter circuit for simultaneous, separate indication of active and reactive consumption

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK88200D DE415957C (en) 1924-01-24 1924-01-24 Three-phase current meter with two drive systems in the two watt meter circuit for simultaneous, separate indication of active and reactive consumption

Publications (1)

Publication Number Publication Date
DE415957C true DE415957C (en) 1925-07-03

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DEK88200D Expired DE415957C (en) 1924-01-24 1924-01-24 Three-phase current meter with two drive systems in the two watt meter circuit for simultaneous, separate indication of active and reactive consumption

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