DE626425C - Counter for direct current three-wire systems - Google Patents

Counter for direct current three-wire systems

Info

Publication number
DE626425C
DE626425C DES117608D DES0117608D DE626425C DE 626425 C DE626425 C DE 626425C DE S117608 D DES117608 D DE S117608D DE S0117608 D DES0117608 D DE S0117608D DE 626425 C DE626425 C DE 626425C
Authority
DE
Germany
Prior art keywords
counter
direct current
wire systems
armature
current
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
DES117608D
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
Publication date
Priority to DES117608D priority Critical patent/DE626425C/en
Application granted granted Critical
Publication of DE626425C publication Critical patent/DE626425C/en
Expired legal-status Critical Current

Links

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
    • G01R11/30Dynamo-electric motor meters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Description

Zähler für Gleichstromdreileiteranlägen Bei Zählern für Dreileiternetze mit nur einem Zähleranker, der zwischen die beiden Außenleiter- des Netzes angeschlossen ist, bleibt der Zähler beim Ausfall eines Außenleiters Astehen, oder @er mißt doch wenigstens höchst ungenau. Man hat deshalb. vorgeschlagen, derartige Zähler mit selbsttätigen Schaltern zu versehen, die beim Ausfall eines Außenleiters den Zähleranker mit dem eine:i Pol an den Nulleiter legen.Counters for direct current three-wire systems For counters for three-wire networks with only one meter armature, which is connected between the two external conductors of the network is, the counter stops when an outer conductor A fails, or @ it measures anyway at least highly imprecise. That's why you have. suggested using such a counter to provide automatic switches that the meter armature in the event of failure of an outer conductor with the one: i put pole on the neutral conductor.

Die Erfindung hat die Aufgabe, derartige selbsttätige Schalter zu vermeiden. Erfindungsgemäß wird der Zähler, der über Vorwiderstände an die Außenleiter angeschlossen ist, über zwei in .entgegengesetzter Richtung durchlässige elektrische Ventile auch ,an den Nulleiter angeschlossen.The invention has the task of providing such automatic switches avoid. According to the invention, the counter, which is connected to the outer conductor via series resistors is connected, via two electrical permeable in opposite directions Valves, too, connected to the neutral conductor.

Die Erfindung soll an Hand der Zeichnung näher erläutert werden.The invention will be explained in more detail with reference to the drawing.

D;er Anker i eines Gleichstromzählers ist mit dem einen Pol über den Gleichrichter 2 an den Nulleiter 3, mit dem anderen -Pol über den in entgegengesetzter . Richtung stromdurchlässigen Gleichrichter 4 ebenfalls ,an den Nulleiter 3 angeschlossen. Außerdem ist er noch über die Vorwiderstände 5, 6, die verhältnismäßig groß sind gegenüber dem Widerstand deg .Ankers i, an die Außenleiter 7, 8 angeschlossen. Während des Normalbetriebes fließt durch die Gleichrichter 2, 4, da sie in entgegengesetzter Richtung stromdurchlässig sind, kein Strom. Fällt jedoch z. B. der Außenleiter 7 aus, so fließt der Strom vom Nulleiter 3 über das Ventil 2, den Anker i und den Vorwiderstand 6 zum Außenleiter B. Die auf den Anker einwirkende Spannung ist praktisch ebenso groß. wie die während des Normalbetriebs. Beim normalen Betrieb liegt die Spannung zwischen den Außenleibern 7, 8 über die Widerstände 5, 6 am Anker i. Beim Ausfall des Außenleiters 7 wirkt zwar nur die halbe Spannung (zwischen den Leitern 3 und 8), dafür ist aber auch nur der eine Widerstand 6 eingeschaltet. Wirken ,auf den Anker i Dauermagnete ein, dann mißt der Zähler E-Quadrat-Stunden; soll er Kilowattstunden messen, so läßt man das Ständerfeld des Zählers in der bei Gleichstrom-Wattstundenzählern üblichen Weise von dem Strom der Außenleiter erregen.D; he armature i of a DC meter is with one pole over the Rectifier 2 to the neutral conductor 3, with the other pole on the opposite one . The rectifier 4, which is permeable to current, is also connected to the neutral conductor 3. In addition, he is still on the series resistors 5, 6, which are relatively large with respect to the resistance deg .Ankers i, connected to the outer conductors 7, 8. While normal operation flows through the rectifier 2, 4, as they are in opposite Direction are current-permeable, no current. However, if z. B. the outer conductor 7 off, the current flows from the neutral conductor 3 via the valve 2, the armature i and the Series resistor 6 to the outer conductor B. The voltage acting on the armature is practical just as big. like those during normal operation. During normal operation, the Voltage between the outer bodies 7, 8 via the resistors 5, 6 on the armature i. At the If the outer conductor 7 fails, only half the voltage (between the conductors 3 and 8), but only one resistor 6 is switched on. Act on the armature i permanent magnet, then the counter measures E-squared hours; should he have kilowatt hours measure, let the stator field of the meter in the DC watt-hour meter excite the usual way of the current of the outer conductor.

Die Erfindung bietet den Vorteil, daß selbsttätige Schalter, die stets eine Störungsquelle sind, vermieden werden.The invention offers the advantage that automatic switches that always are a source of interference should be avoided.

Claims (1)

PATENTANSPRUCH: Zähler für Gleichstromdreileiteranlagen, dadurch gekennzeichnet, daß der Spannungskreis des Zählers (i) mit beiden Polen über Widerstände (5, 6) an die beiden Außenleiter (7, 8) und über in entgegengesetzter Richtung durchlässige Ventile (2, 4) an dem Nulleiter (3) angeschlossen ist.Claim: counter for direct current three-wire systems, characterized in that the voltage circuit of the counter (i) is connected to both poles via resistors (5, 6) to the two outer conductors (7, 8) and via valves (2, 4) which are permeable in the opposite direction Neutral conductor (3) is connected.
DES117608D Counter for direct current three-wire systems Expired DE626425C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES117608D DE626425C (en) Counter for direct current three-wire systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES117608D DE626425C (en) Counter for direct current three-wire systems

Publications (1)

Publication Number Publication Date
DE626425C true DE626425C (en) 1936-02-26

Family

ID=7534281

Family Applications (1)

Application Number Title Priority Date Filing Date
DES117608D Expired DE626425C (en) Counter for direct current three-wire systems

Country Status (1)

Country Link
DE (1) DE626425C (en)

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