DE560013C - Device for starting single-phase induction motors - Google Patents

Device for starting single-phase induction motors

Info

Publication number
DE560013C
DE560013C DED57403D DED0057403D DE560013C DE 560013 C DE560013 C DE 560013C DE D57403 D DED57403 D DE D57403D DE D0057403 D DED0057403 D DE D0057403D DE 560013 C DE560013 C DE 560013C
Authority
DE
Germany
Prior art keywords
induction motors
starting
phase
resistance
phase induction
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
DED57403D
Other languages
German (de)
Inventor
Dr-Ing Franz Heiles
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.)
ELEK ZITAETS WERKE ZU AACHENI
Lahmeyer & Co I Akt Ges
Original Assignee
ELEK ZITAETS WERKE ZU AACHENI
Lahmeyer & Co I Akt Ges
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 ELEK ZITAETS WERKE ZU AACHENI, Lahmeyer & Co I Akt Ges filed Critical ELEK ZITAETS WERKE ZU AACHENI
Priority to DED57403D priority Critical patent/DE560013C/en
Application granted granted Critical
Publication of DE560013C publication Critical patent/DE560013C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/42—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual single-phase induction motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)
  • Motor And Converter Starters (AREA)

Description

Einrichtung zum Anlassen von Einphasen-Induktionsmotoren Das Anlassen von Einphasen-Induktionsmotoren geschieht gewöhnlich in der Weise, daß eine im Betrieb nicht eingeschaltete Wicklung (Hilfsphase), deren Wicklungsachse einen räumlichen Winkel mit der Betriebswicklung einschließt, gleichzeitig mit der Betriebswicklung an die Netzspannung oder einen Teil derselben gelegt wird.Device for starting single-phase induction motors Starting of single-phase induction motors is usually done in such a way that one in operation Not switched on winding (auxiliary phase), the winding axis of which has a spatial Including angle with the operating winding, at the same time as the operating winding is applied to the mains voltage or part of it.

In den Hilfsstromkreis werden Wirk-oder Blindwiderstände (kapazitiv oder induktiv) eingeschaltet, die eine Phasenverschiebung des Stromes der Hilfsphase gegenüber dem Strom der Betriebswicklung hervorrufen.Active or reactive resistances (capacitive or inductive) switched on, the phase shift of the current of the auxiliary phase against the current of the operating winding.

Die Impedanzen der Hilfsphase und der eingeschalteten Widerstände werden im allgemeinen so bemessen, daß beim Einschalten des Motors der in der Hilfsphase fließende Strom ausreicht, um das geforderte Anlaufmoment zu schaffen.The impedances of the auxiliary phase and the switched-on resistors are generally dimensioned so that when the motor is switched on, the one in the auxiliary phase The current flowing is sufficient to create the required starting torque.

Es ist nun bekannt, daß der zur Erzielung eines Drehmoments bestimmter Größe erforderliche Wert des Widerstandes der Hilfsphase sich mit der Drehzahl ändert, und es ist daher schon vorgeschlagen worden, die in den Stromkreis der Hilfsphase eingeschalteten Widerstände während des Hochlaufens zu ändern, um ein gewisses Drehmoment aufrechtzuerhalten.It is now known that the specific to achieve a torque The required value of the resistance of the auxiliary phase changes with the speed, and it has therefore already been proposed that in the circuit of the auxiliary phase switched on resistors change during run-up to a certain torque maintain.

Die Erfindung fußt nun auf der Erkenntnis, daß bei einem Einphasenmotor zu einem bestimmten Wert des Läuferanlaßwiderstandes ein günstigster Wert der Impedanz der Hilfsphase gehört, wenn der Verlauf des Lastmomentes festliegt. Um diesen günstigsten Wert unabhängig von der den Anlasser bedienenden Person zu erhalten, soll die Änderung des der Hilfsphase vorgeschalteten Widerstandes zwangsläufig mit der Änderung des Anlaßwiderstandes im Läuferstromkreis erfolgen. Es wird also gemäß der Erfindung der Läuferanlasser mit dem veränderlichen Widerstand der Hilfsphase so gekuppelt, daß jede Verringerung des Anlaßwiderstandes zwangsläufig eine Vergrößerung des Widerstandes in der Hilfsphase bewirkt.The invention is based on the knowledge that in a single-phase motor a most favorable value of the impedance for a certain value of the rotor starting resistance belongs to the auxiliary phase when the course of the load torque is fixed. To this cheapest The change is intended to maintain value regardless of who is operating the starter of the resistor connected upstream of the auxiliary phase with the change in the Starting resistance take place in the rotor circuit. So it is according to the invention the rotor starter is coupled with the variable resistance of the auxiliary phase in such a way that that any decrease in the starting resistance inevitably increases the resistance effected in the auxiliary phase.

Claims (1)

PATENTANSPRUCH: Einrichtung zum Anlassen von Einphasen-Induktionsmotoren mit einer Hilfsphasenwicklung, in deren Stromkreis durch einen während der Anlaufperiode in seiner Größe veränderlichen Wirk-oder Blindwiderstand eine Phasenverschiebung hervorgerufen wird, dadurch gekennzeichnet, daß die Änderung dieses Widerstandes zwangsläufig mit der Änderung des Anlaßwiderstandes im Läuferstromkreis erfolgt.PATENT CLAIM: Device for starting single-phase induction motors with an auxiliary phase winding, in whose circuit by one during the start-up period Resistance or reactance, variable in its size, results in a phase shift is caused, characterized in that the change in this resistance inevitably takes place with the change of the starting resistance in the rotor circuit.
DED57403D 1929-01-03 1929-01-03 Device for starting single-phase induction motors Expired DE560013C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED57403D DE560013C (en) 1929-01-03 1929-01-03 Device for starting single-phase induction motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED57403D DE560013C (en) 1929-01-03 1929-01-03 Device for starting single-phase induction motors

Publications (1)

Publication Number Publication Date
DE560013C true DE560013C (en) 1932-09-27

Family

ID=7057140

Family Applications (1)

Application Number Title Priority Date Filing Date
DED57403D Expired DE560013C (en) 1929-01-03 1929-01-03 Device for starting single-phase induction motors

Country Status (1)

Country Link
DE (1) DE560013C (en)

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