BE412948A - - Google Patents

Info

Publication number
BE412948A
BE412948A BE412948DA BE412948A BE 412948 A BE412948 A BE 412948A BE 412948D A BE412948D A BE 412948DA BE 412948 A BE412948 A BE 412948A
Authority
BE
Belgium
Prior art keywords
emi
branch
reactance
winding
transformer
Prior art date
Application number
Other languages
French (fr)
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.)
Publication of BE412948A publication Critical patent/BE412948A/fr

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00Adaptations of transformers or inductances for specific applications or functions
    • H01F38/08High-leakage transformers or inductances
    • H01F38/085Welding transformers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00Variable transformers or inductances not covered by group H01F21/00
    • H01F29/08Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators
    • H01F29/10Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators having movable part of magnetic circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Description

       

  Transformateur avec réactance de dispersion réglable, en particulier pour la soudure à l'arc.

  
On connait différents transformateurs avec réactance de dispersion réglable dans lesquels on vise . obtenir un assemblage aussi ramassé que possible du transforma-

  
 <EMI ID=1.1> 

  
il est connu de disposer une bobine de réactance, montée en série avec l'enroulement du secondaire, avec le transformateur sur un noyau en fer à trois branches et, comme dans

  
le cas d'un transformateur biphasé, de disposer les enroulements du transformateur et l'enroulement de la bobine

  
de réactance chacun-.- sur un noyau, tandis que le troisième noyau, sans enroulement, sert pour le retour du flux magné-

  
 <EMI ID=2.1> 

  
ment secondaire présente, au moins en partie, des bobinages  <EMI ID=3.1> 

  
comportant l'entrefer. De ce fait, on obtient une réduction de la consommation en cuivre ainsi que des conditions. de refroidissement plus favorables,en Particulier pour l'enroulement secondaire .

  
Le dessin annexé représente schématiquement un exemple simple de réalisation de l'objet de l'invention, en coupe

  
et

  
longitudinale, sur la fige 1,/en coupe transversale, sur

  
 <EMI ID=4.1> 

  
lement secondaire consiste uniquement en bobinages qui entourent le noyau de l'enroulement primaire et le noyau comportant les entrefers.

  
est l'enroulement primaire. L'enroulement secondaire et la bobine de réactance sont constitués par un en-

  
 <EMI ID=5.1> 

  
che 3 sert de retour commun pour le flux magnétique. Le réglage de la réactance de dispersion se fait par modifica-

  
 <EMI ID=6.1> 

  
De façon à avoir une grande zone de réglage, on peut encore,

  
 <EMI ID=7.1> 

  
des bobinages qui sont enroulés uniquement autour de la branche 5 et d'autres qui sont enroulés uniquement autour de la branche 4.

  
Dans l'exemple de réalisation, l'entrefer est constitué par un paquet de tôles 6 ovale, pouvant tourner, qui se trouve entre les deux parties de la branche 5. Suivant la position du paquet de tôles, l'entrefer augmente ou diminue. L'enroulement secondaire est fait de façon telle que,

  
 <EMI ID=8.1> 

  
peut sortir à. l'extérieur. Pour empêcher la vibration, le paquet de tôles est bloqué dans n'importe quelle position. Evidemment, pour modifier l'entrefer, on peut aussi utiliser n'importe laquelle des nombreuses constructions connues. De <EMI ID=9.1> 



  Transformer with adjustable dispersion reactance, especially for arc welding.

  
We know different transformers with adjustable dispersion reactance in which we aim. obtain an assembly as compact as possible of the transforma-

  
 <EMI ID = 1.1>

  
it is known to have a reactance coil, mounted in series with the winding of the secondary, with the transformer on a three-branched iron core and, as in

  
in the case of a two-phase transformer, to arrange the windings of the transformer and the winding of the coil

  
of reactance each -.- on a core, while the third core, without winding, is used for the return of the magnetic flux

  
 <EMI ID = 2.1>

  
secondary element has, at least in part, windings <EMI ID = 3.1>

  
comprising the air gap. As a result, a reduction in copper consumption as well as conditions is obtained. more favorable cooling, especially for the secondary winding.

  
The accompanying drawing schematically shows a simple example of embodiment of the object of the invention, in section.

  
and

  
longitudinal, on fig 1, / in cross section, on

  
 <EMI ID = 4.1>

  
The secondary element consists only of windings which surround the core of the primary winding and the core comprising the air gaps.

  
is the primary winding. The secondary winding and the reactance coil consist of an en-

  
 <EMI ID = 5.1>

  
che 3 serves as a common return for the magnetic flux. The dispersion reactance is adjusted by modifying

  
 <EMI ID = 6.1>

  
In order to have a large adjustment area, we can still,

  
 <EMI ID = 7.1>

  
coils which are wound only around branch 5 and others which are wound only around branch 4.

  
In the exemplary embodiment, the air gap is formed by a packet of oval sheets 6, which can rotate, which is located between the two parts of the branch 5. Depending on the position of the pack of sheets, the air gap increases or decreases. The secondary winding is made in such a way that,

  
 <EMI ID = 8.1>

  
can go out to. outside. To prevent vibration, the sheet metal bundle is locked in any position. Obviously, to modify the air gap, one can also use any of the many known constructions. From <EMI ID = 9.1>


    

Claims (1)

même, on peut utiliser, pour empêcher les vibrations, des moyens connus tels que, par exemple, des bagues de courtcircuit dans une partie mobile ou fixe de la branche comportant l'entrefer. <EMI ID=10.1> even, to prevent vibrations, known means such as, for example, short-circuit rings can be used in a mobile or fixed part of the branch comprising the air gap. <EMI ID = 10.1> Transformateur avec réactance de dispersion réglable, en particulier pour la soudure à l'arc, caractérisé par le fait que l' enroulement secondaire comporte, au moins en partie, des bobinages qui entourent simultanément la branche de l'enroulement primaire et la branche comportant Transformer with adjustable dispersion reactance, in particular for arc welding, characterized in that the secondary winding comprises, at least in part, windings which simultaneously surround the branch of the primary winding and the branch comprising <EMI ID=11.1> <EMI ID = 11.1>
BE412948D 1934-08-04 BE412948A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH792938X 1934-08-04

Publications (1)

Publication Number Publication Date
BE412948A true BE412948A (en)

Family

ID=4537103

Family Applications (1)

Application Number Title Priority Date Filing Date
BE412948D BE412948A (en) 1934-08-04

Country Status (2)

Country Link
BE (1) BE412948A (en)
FR (1) FR792938A (en)

Also Published As

Publication number Publication date
FR792938A (en) 1936-01-13

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