AT93768B - Arrangement for field weakening in direct current series motors. - Google Patents

Arrangement for field weakening in direct current series motors.

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Publication number
AT93768B
AT93768B AT93768DA AT93768B AT 93768 B AT93768 B AT 93768B AT 93768D A AT93768D A AT 93768DA AT 93768 B AT93768 B AT 93768B
Authority
AT
Austria
Prior art keywords
sep
field weakening
arrangement
direct current
current series
Prior art date
Application number
Other languages
German (de)
Original Assignee
Aeg Union Elek 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 Aeg Union Elek Wien filed Critical Aeg Union Elek Wien
Application granted granted Critical
Publication of AT93768B publication Critical patent/AT93768B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Anordnung zur   Feldschwächung   bei Gleichstrom-Selienmotoren. 
 EMI1.1 
 
 EMI1.2 
 
<tb> 
<tb> Kontakt <SEP> 1 <SEP> # <SEP> # <SEP> # <SEP> volles <SEP> Feld,
<tb> Kontakte <SEP> 1 <SEP> 2 <SEP> # <SEP> # <SEP> 1. <SEP> Feldschwächungsstufe,
<tb> Kontakte <SEP> 1 <SEP> 2 <SEP> 3 <SEP> # <SEP> Überschalten,
<tb> und <SEP> # <SEP> 2 <SEP> 3 <SEP> # <SEP> 
<tb> Kontake <SEP> # <SEP> 2 <SEP> 3 <SEP> 4 <SEP> 2. <SEP> Feldschwächungsstufe.
<tb> 
 



   Wird der Shuntwiderstand so gewählt, dass er dem n-fachen Ohmwert der   Feldwicklung   in Reihe entspricht, so entstehen folgende Erregungsgrade : 
 EMI1.3 
 
<tb> 
<tb> M==1'5 <SEP> n <SEP> =2'5 <SEP> M=3'5
<tb> Volles <SEP> Feld <SEP> 100 <SEP> % <SEP> 100 <SEP> % <SEP> 100%
<tb> 1. <SEP> Feldschwächungsstufe <SEP> .... <SEP> 60 <SEP> % <SEP> 71-5% <SEP> 78%
<tb> Überschalten............... <SEP> (37#5%) <SEP> (41#5%) <SEP> (44%)
<tb> 2. <SEP> Feldschwächungstufe.... <SEP> 42-5% <SEP> 45-5% <SEP> 47%
<tb> 
 
 EMI1.4 




   <Desc / Clms Page number 1>
 



  Arrangement for field weakening in direct current series motors.
 EMI1.1
 
 EMI1.2
 
<tb>
<tb> Contact <SEP> 1 <SEP> # <SEP> # <SEP> # <SEP> full <SEP> field,
<tb> Contacts <SEP> 1 <SEP> 2 <SEP> # <SEP> # <SEP> 1st <SEP> field weakening level,
<tb> Contacts <SEP> 1 <SEP> 2 <SEP> 3 <SEP> # <SEP> switch over,
<tb> and <SEP> # <SEP> 2 <SEP> 3 <SEP> # <SEP>
<tb> Contacts <SEP> # <SEP> 2 <SEP> 3 <SEP> 4 <SEP> 2nd <SEP> field weakening level.
<tb>
 



   If the shunt resistor is chosen so that it corresponds to n times the ohmic value of the field winding in series, the following degrees of excitation arise:
 EMI1.3
 
<tb>
<tb> M == 1'5 <SEP> n <SEP> = 2'5 <SEP> M = 3'5
<tb> Full <SEP> field <SEP> 100 <SEP>% <SEP> 100 <SEP>% <SEP> 100%
<tb> 1st <SEP> field weakening level <SEP> .... <SEP> 60 <SEP>% <SEP> 71-5% <SEP> 78%
<tb> Override ............... <SEP> (37 # 5%) <SEP> (41 # 5%) <SEP> (44%)
<tb> 2nd <SEP> field weakening level .... <SEP> 42-5% <SEP> 45-5% <SEP> 47%
<tb>
 
 EMI1.4

Claims (1)

PATENT-ANSPRÜCHE : 1. Anordnung zui Feldschwächung bei Gleichstrom-Serienmotoren mittels eines parallel zur Feldwicklung liegenden Shuntwiderstandes, dadurch gekennzeichnet, dass auf der ersten Feldschwächungsstufe die beiden Hälften der Feldwicklung in Reihe liegen, während sie auf der zweiten Feldschwächungsstufe bei unverändertem Shuntwiderstande parallel liegen. PATENT CLAIMS: 1. Arrangement for field weakening in direct current series motors by means of a shunt resistor lying parallel to the field winding, characterized in that the two halves of the field winding are in series on the first field weakening stage, while they are parallel on the second field weakening stage with unchanged shunt resistance. 2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, dass je ein Widerstand in den beiden Feldwicklungshälften liegt, jedoch so, dass er bei Reihenschaltung der Hälften stromlos ist. EMI2.1 2. Arrangement according to claim 1, characterized in that there is a resistor in each of the two field winding halves, but so that it is de-energized when the halves are connected in series. EMI2.1
AT93768D 1921-11-14 1922-08-22 Arrangement for field weakening in direct current series motors. AT93768B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE93768X 1921-11-14

Publications (1)

Publication Number Publication Date
AT93768B true AT93768B (en) 1923-07-25

Family

ID=5644789

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93768D AT93768B (en) 1921-11-14 1922-08-22 Arrangement for field weakening in direct current series motors.

Country Status (1)

Country Link
AT (1) AT93768B (en)

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