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DE408881C - Device for speed control of three-phase cascades - Google Patents

Device for speed control of three-phase cascades

Info

Publication number
DE408881C
DE408881C DEA39085D DEA0039085D DE408881C DE 408881 C DE408881 C DE 408881C DE A39085 D DEA39085 D DE A39085D DE A0039085 D DEA0039085 D DE A0039085D DE 408881 C DE408881 C DE 408881C
Authority
DE
Germany
Prior art keywords
speed control
transformer
phase cascades
phase
choke coil
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
DEA39085D
Other languages
German (de)
Inventor
Wilhelm Weiler
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by AEG AG filed Critical AEG AG
Priority to DEA39085D priority Critical patent/DE408881C/en
Application granted granted Critical
Publication of DE408881C publication Critical patent/DE408881C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K17/00Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02Asynchronous induction motors
    • H02K17/34Cascade arrangement of an asynchronous motor with another dynamo-electric motor or converter
    • H02K17/38Cascade arrangement of an asynchronous motor with another dynamo-electric motor or converter with a commutator machine

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)

Description

Einrichtung zur Drehzahlregelung von Drehstromkaskaden. Nach Patent 407847 wurde die Drehzahländerung von Drehstromkaskaden 'dadurch hervorgerufen, daß in den Primärstromkreis des Erregertransformators der Kollektorhintermaschine für den.Drehzahlabfall ein Ohmscher Widerstand geschaltet wurde. Erfindungsgemäß kommen Ohmscher und Induktiver Widerstand gleichzeitig zur Anwendung. Abb. i zeigt einen Transformator T dessen Sekundärwicklung an den Schleifringen S des Kollektorhintermotors H liegt, und an dessen Prünärwicklung eine Drosselspule D angeschlossen ist. An der Zuleitung zwischen der Primärwicklung des Transformators .T und der Drosselspule D liegt der Wasserwiderstand R.Device for speed control of three-phase cascades. According to patent 407847 the change in speed of three-phase cascades was caused by that in the primary circuit of the excitation transformer of the collector rear machine an ohmic resistor was connected for the speed drop. According to the invention Ohmic and inductive resistance are used at the same time. Fig.i shows a transformer T whose secondary winding on the slip rings S of the collector rear motor H, and on its primary winding one Choke coil D connected is. On the lead between the primary winding of the transformer .T and the Choke coil D is the water resistance R.

Bei tiefster Elektrodenstellung wird den Schleifringen S die dem übersetzungsverhältnis des Transformators T entsprechende Spannung aufgedrückt, denn. die Drosselspule D ist hierbei durch den nunmehr sehr kleinen Wasserwiderstand R kurzgeschlossen. Bei höchster Elektrodenstellung muß der Primärstrom des Transformators T zum größten Teil die Drosselspule D durchlaufen, und die den Schleifringen S aufgedrückte Spannung wird je nach Wahl der Drosselspule D beliebig verkleinert.When the electrode is at the lowest position, the slip rings S will have the transmission ratio of the transformer T corresponding voltage pressed, because. the choke coil D is short-circuited here due to the now very low water resistance R. At the highest electrode position, the primary current of the transformer T must be greatest Part of the choke coil D pass through, and the voltage impressed on the slip rings S. is reduced as required depending on the choice of choke coil D.

Abb. a zeigt dieselbe Anordnung wie Abb, i, nur mit dem Unterschied, daß, ebenso wie beim Hauptpatent, zur Verbesserung des Leistungsfaktors ein Zusatztransformator Ti in 2o Reihe mit der Sekundärwicklung des zur Drehzahlregelung dienenden Transformators T2 geschaltet ist.Fig.a shows the same arrangement as Fig, i, only with the difference, that, as with the main patent, an additional transformer to improve the power factor Ti in 2o series with the secondary winding of the transformer used for speed control T2 is switched.

Claims (1)

PATENT-ANSPRUCH: Einrichtung zur Drehzahlregelung von Drehstromkaskaden nach Patent q.078¢7, dadurch gekennzeichnet, daß in den Primärkreis des im Erregerkreis des Kollektorhintermotors liegenden Transformators eine Drosselspule geschaltet ist, an deren. Zuleitung der veränderliche Wasserwiderstand liegt, zum Zweck, die Spannung an den Schleifringen des Kollektorhintermotors beliebig zu verkleinern. PATENT CLAIM: Device for regulating the speed of three-phase cascades according to patent q.078 ¢ 7, characterized in that a choke coil is connected to the primary circuit of the transformer located in the exciter circuit of the collector rear motor. The supply line for the variable water resistance is used for the purpose of reducing the voltage on the slip rings of the collector rear motor as required.
DEA39085D 1922-12-29 1922-12-29 Device for speed control of three-phase cascades Expired DE408881C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA39085D DE408881C (en) 1922-12-29 1922-12-29 Device for speed control of three-phase cascades

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA39085D DE408881C (en) 1922-12-29 1922-12-29 Device for speed control of three-phase cascades

Publications (1)

Publication Number Publication Date
DE408881C true DE408881C (en) 1925-01-29

Family

ID=6931170

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA39085D Expired DE408881C (en) 1922-12-29 1922-12-29 Device for speed control of three-phase cascades

Country Status (1)

Country Link
DE (1) DE408881C (en)

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