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
Links
- 230000002441 reversible effect Effects 0.000 title claims description 8
- 230000006866 deterioration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Description
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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
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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
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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
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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
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Anchor be present.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
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) |
-
1908
- 1908-03-09 AT AT38955D patent/AT38955B/en active
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