AT38955B - Electric machine with reversible poles. - Google Patents

Electric machine with reversible poles.

Info

Publication number
AT38955B
AT38955B AT38955DA AT38955B AT 38955 B AT38955 B AT 38955B AT 38955D A AT38955D A AT 38955DA AT 38955 B AT38955 B AT 38955B
Authority
AT
Austria
Prior art keywords
poles
reversible
electric machine
reversible poles
pole
Prior art date
Application number
Other languages
German (de)
Original Assignee
Siemens Schuckertwerke Wien
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 Siemens Schuckertwerke Wien filed Critical Siemens Schuckertwerke Wien
Application granted granted Critical
Publication of AT38955B publication Critical patent/AT38955B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Elektrische   Maschine mit Wendepolen.   



   Wird bei elektrischen Maschinen mit Wendepolen auf dem Anker eine Trommelwirkung   verwendet, deren Schritt gleich oder nahezu gleich einer Polteilung ist, so kann die Anzahl der Wendepole gleich der Anzahl der Hälfte der Hauptpole gemacht werden. Dei durch den Fortfall   von Wendepolen ersparte Platz zwischen den Hauptpolen ist nun bereits nutzbar gemacht worden, indem Polschuhe und Polkerne gemeinsam seitlich verschoben wurden. Durch diese
Verschiebung erhalten die Pole jedoch eine unsymmetrische Lage zum Anker ; die Folge hiervon ist eine Verschlechterung der Kommutierung und bei Wicklungen   mit Áquipoteutialverbindungen.   können unter   Umständen   ausserdem Ausgleichsströme auftreten, die eine schädliche   Erwärmung   des Ankers zur Folge haben.

   Es ist bereits versucht worden, durch ungleiche lange Polhörner diese Anordnung zu verbessern ; da jedoch das verlängerte   Polhorn   weniger Kraftlinien führen 
 EMI1.1 
 
 EMI1.2 
   ihrer richtigen Lage belassen und die Hauptpolkerne nur mit den am Gehäuse liegenden Enden seitlich verschoben werden, sodass die Mittellinien der Kerne aus der radialen Richtung abweichen.   



   Die Zeichnung stellt als Ausführungsbeispiel der Erfindung ein Bahnmotorgehäuse im Schnitt 
 EMI1.3 
 Anker vorhanden sein. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Electric machine with reversible poles.



   If a drum effect is used in electrical machines with reversible poles on the armature, the step of which is equal to or almost equal to a pole pitch, then the number of reversible poles can be made equal to the number of half the main poles. The space saved between the main poles by eliminating the reversible poles has already been made usable by moving the pole pieces and pole cores together laterally. Through this
Displacement, however, the poles get an asymmetrical position to the armature; The consequence of this is a deterioration in the commutation and in windings with equipotential connections. Under certain circumstances, equalizing currents can also occur, which result in harmful heating of the armature.

   Attempts have already been made to improve this arrangement by using polar horns of unequal length; however, since the elongated pole horn has fewer lines of force
 EMI1.1
 
 EMI1.2
   leave their correct position and the main pole cores are only shifted laterally with the ends lying on the housing, so that the center lines of the cores deviate from the radial direction.



   As an embodiment of the invention, the drawing shows a section of a railroad motor housing
 EMI1.3
 Anchor be present.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Elektrische Maschine mit Wendepolen, bei der die Anzahl der Wendepole geringer als die Anzahl der Hauptpole ist, und bei welcher der durch den Fortfall von Wendepolen ersparte Platz EMI1.4 EMI1.5 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Electrical machine with reversible poles, in which the number of reversible poles is less than the number of main poles, and in which the space saved by eliminating reversible poles EMI1.4 EMI1.5 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT38955D 1908-03-09 1908-03-09 Electric machine with reversible poles. AT38955B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT38955T 1908-03-09

Publications (1)

Publication Number Publication Date
AT38955B true AT38955B (en) 1909-09-25

Family

ID=3556889

Family Applications (1)

Application Number Title Priority Date Filing Date
AT38955D AT38955B (en) 1908-03-09 1908-03-09 Electric machine with reversible poles.

Country Status (1)

Country Link
AT (1) AT38955B (en)

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