DE502062C - Pole-changing asynchronous motor for two basic speeds with two separate rotor phase windings, one of which is connected to slip rings and the other is short-circuited at the speed assigned to it - Google Patents

Pole-changing asynchronous motor for two basic speeds with two separate rotor phase windings, one of which is connected to slip rings and the other is short-circuited at the speed assigned to it

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Publication number
DE502062C
DE502062C DEA52039D DEA0052039D DE502062C DE 502062 C DE502062 C DE 502062C DE A52039 D DEA52039 D DE A52039D DE A0052039 D DEA0052039 D DE A0052039D DE 502062 C DE502062 C DE 502062C
Authority
DE
Germany
Prior art keywords
pole
short
slip rings
changing
circuited
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
DEA52039D
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.)
AEG AG
Original Assignee
AEG AG
Publication date
Priority to DEA52039D priority Critical patent/DE502062C/en
Application granted granted Critical
Publication of DE502062C publication Critical patent/DE502062C/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/12—Asynchronous induction motors for multi-phase current
    • H02K17/14—Asynchronous induction motors for multi-phase current having windings arranged for permitting pole-changing

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor And Converter Starters (AREA)
  • Dc Machiner (AREA)

Description

Der Gegenstand der Erfindung betrifft einen polumschaltbaren Motor, welcher immer dann mit Vorteil angewendet werden kann, wenn von den beiden den verschiedenen' PoI-zahlen entsprechenden Drehzahlen die eine regelbar sein, die andere konstant bleiben soll. An Stelle einer verwickelten Kurzschlußvorrichtung oder der Anwendung von fünf oder sechs Schleifringen auf dem Läufer wird to erfindungsgemäß eine normale Bürstenabhebe- und Kurzschlußvorrichtung, wie sie jeder normale Drehstrommotor mit Anlaßschleifringanker besitzt, angewendet.The object of the invention relates to a pole-changing motor, which always can then be used to advantage if of the two different 'PoI numbers corresponding speeds one can be regulated, the other should remain constant. Instead of an intricate shorting device or the application of five or six slip rings on the runner, according to the invention, a normal brush lift-off and short-circuit device like any normal three-phase motor with starting slip ring armature owns, applied.

Der Drehstrommotor nach der Erfindung wird im Ständer polumschaltbar mit einer oder zwei Wicklungen ausgeführt. Der Läufer erhält zwei getrennte Phasenwicklungen, von denen die für die regelbare Drehzahl vorgesehene Wicklung in der beim normalen Asynchronmotor üblichen Weise an drei Schleifringe angeschlossen ist, während die andere Kurzschlußpunkte besitzt. Es ist hierbei erforderlich, daß stets nur eine einzige Läuferwicklung eingeschaltet ist; erfindungs-The three-phase motor according to the invention is pole-changing with a stator or two windings. The rotor receives two separate phase windings, of which the winding provided for the controllable speed is in the normal one Asynchronous motor is usually connected to three slip rings, while the has other short-circuit points. It is necessary here that only one Rotor winding is switched on; inventive

25. gemäß sind daher die Schleifringe und die Kurzschlußpunkte an die vorgenannte Bürstenabhebe- und Kurzschlußvorriichtung angeschlossen, deren Umschalthebel gleichzeitig eine Läuferwicklung ein- und die andere ausschaltet. Diese Anordnung hat den weiteren Vorteil, daß sie nicht nur zur Regelung der Drehzahl, sondern auch zum stoßfreien Anlassen mit Hilfe der Regelwiderstände dienen .kann.25. According to the slip rings and the short-circuit points on the aforementioned brush lift-off and Kurzschlussvorriichtung connected, the switch lever at the same time one rotor winding on and the other off. This arrangement has the further advantage that it is used not only for regulating the speed, but also for smooth starting can be used with the help of the rheostats.

Die Zeichnung zeigt ein Ausführungsbeispiel des Erfindungsgegenstandes. Die für die regelbare Drehzahl bestimmte Läuferwicklung I1 ist an die Schleifringes1 und die nicht regelbare Lauferwicklung I2 der anderen Polzahl an die am Umfange eines Kreises angeordneten Kurzschlußpunkte k angeschlossen. Der Umschalthebel« schaltet in der einen Stellung die Wicklung L ein und gleichzeitig die WicklungZ1 ab, wobei- die Kurzschlußpunkte k durch den Ring r kurzgeschlossen und die Bürste b von den Schleifringen s gleichzeitig abgehoben werden. In der anderen Stellung des Umschalthebels wird Ix ein- und gleichzeitig L abgeschaltet, wobei die Kurzschlußverbindung gelöst und die Bürsten gleichzeitig aufgelegt werden. In beiden Fällen ist stets eine der Läuferwicklungen offen.The drawing shows an embodiment of the subject matter of the invention. The rotor winding I 1 intended for the controllable speed is connected to the slip ring 1 and the non-controllable rotor winding I 2 of the other number of poles is connected to the short-circuit points k arranged on the circumference of a circle. In one position, the switchover lever «switches on the winding L and at the same time switches off the winding Z 1 , the short-circuit points k being short-circuited by the ring r and the brush b being lifted off the slip rings s at the same time. In the other position of the switch lever, I x is switched on and L switched off at the same time, the short-circuit connection being released and the brushes being applied at the same time. In both cases one of the rotor windings is always open.

Der Umschalthebel ti kann vorteilhaft zwangsläufig mit dem Ständerpolumschalter verbunden sein, so daß beide gleichzeitig umgelegt werden. The changeover lever ti can advantageously be connected to the stator pole changeover switch so that both are turned over at the same time.

Claims (3)

Patentansprüche:Patent claims: 1. Polumschaltbarer Asynchronmotor für zwei. Grunddrehzahlen mit zwei getrennten Läuferphasenwicklungen, von denen die eine an Schleifringe angeschlossen und die andere bei der ihr zugeordneten Drehzahl kurzgeschlossen ist, gekennzeichnet durch eine Kurzschluß- und Bürstenabhebevorrichtung üblicher Bauart, durch die beim Kurzschließen der zweiten Läuferwicklung gleichzeitig die Bürsten von den Schleifringen der ersten Wicklung abgehoben werden.1. Pole-changing asynchronous motor for two. Basic speeds with two separate Rotor phase windings, one of which is connected to slip rings and the other to the one assigned to it Speed is short-circuited, characterized by a short-circuit and brush lifting device of the usual type, by the brushes at the same time when short-circuiting the second rotor winding be lifted off the slip rings of the first winding. 2. Polumschaltbarer Motor nach Anspruch i, dadurch gekennzeichnet, daß der Umschalthebel für die Läuferwicklung zwangsläufig mit dem Polumschalter der Ständerwicklung verbunden ist.2. Pole-changing motor according to claim i, characterized in that the Switching lever for the rotor winding is necessarily connected to the pole-changing switch of the stator winding. 3. Verfahren zum Anlassen des polumschaltbaren Motors nach Anspruch 1, dadurch gekennzeichnet, daß die an die Schleifringe angeschlossenen Regelwiderstände auch zum Anlassen verwendet werden. 3. A method for starting the pole-changing motor according to claim 1, characterized characterized in that the variable resistors connected to the slip rings are also used for starting. *) Von dem Patentsucher ist als der Erfinder angegeben worden:*) The patent seeker stated as the inventor: Dipl.-Ing. Heinrich Müller in Berlin-Waidmantislust.Dipl.-Ing. Heinrich Müller in Berlin-Waidmantislust. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEA52039D Pole-changing asynchronous motor for two basic speeds with two separate rotor phase windings, one of which is connected to slip rings and the other is short-circuited at the speed assigned to it Expired DE502062C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA52039D DE502062C (en) Pole-changing asynchronous motor for two basic speeds with two separate rotor phase windings, one of which is connected to slip rings and the other is short-circuited at the speed assigned to it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA52039D DE502062C (en) Pole-changing asynchronous motor for two basic speeds with two separate rotor phase windings, one of which is connected to slip rings and the other is short-circuited at the speed assigned to it

Publications (1)

Publication Number Publication Date
DE502062C true DE502062C (en) 1930-07-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEA52039D Expired DE502062C (en) Pole-changing asynchronous motor for two basic speeds with two separate rotor phase windings, one of which is connected to slip rings and the other is short-circuited at the speed assigned to it

Country Status (1)

Country Link
DE (1) DE502062C (en)

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