AT121206B - Device for rectifier supply via transformers with suction chokes. - Google Patents

Device for rectifier supply via transformers with suction chokes.

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Publication number
AT121206B
AT121206B AT121206DA AT121206B AT 121206 B AT121206 B AT 121206B AT 121206D A AT121206D A AT 121206DA AT 121206 B AT121206 B AT 121206B
Authority
AT
Austria
Prior art keywords
supply via
rectifier
via transformers
suction
rectifier supply
Prior art date
Application number
Other languages
German (de)
Original Assignee
Bbc Ag Oesterr
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
Priority claimed from AT115580D external-priority patent/AT115580B/en
Application filed by Bbc Ag Oesterr filed Critical Bbc Ag Oesterr
Application granted granted Critical
Publication of AT121206B publication Critical patent/AT121206B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Einrichtung zur   Gleichrichterspeisnng   über Transformatoren mit   Sangdrosseln.   



   Gegenstand des Hauptpatentes ist eine Einrichtung zur Gleiehriehterspeisung über Transformatoren mit Saugdrossel, bei welcher der Magnetisierungsstrom der dritten Harmonischen für die Saugdrossel induktiv in einer Fremdstromquelle erzeugt und einer Wicklung der Saugdrossel zugeführt wird. Als Fremstromquelle für die dritte Harmonische ist ein   hochgesättigter   Dreiphasentransformator angegeben, dessen   Sekundärwicklung   in offener Dreieekwicklung geschaltet ist, wobei den Sekundärklemmen der Strom der dritten Harmonischen unmittelbar entnommen wird. Dieser Strom wird zweckmässig einer besonderen Erregerwicklung der Saugdrossel zugeführt. Er erzeugt ein Feld der dreifachen Frequenz, welches in der Saugdrossel eine Spannung der dreifachen Frequenz induziert, welche unabhängig von der Belastung des Gleichrichters ist.

   Die in der Saugdrossel induzierte Spannung entspricht der Spannung, welche durch den Gleiehrichterstrom erzeugt wird und welche im Stromkreis des Gleichrichters einen Spannungsabfall darstellt. Diese Spannung ist nun aber unabhängig von der Belastung und daher auch dann vorhanden, wenn der Gleichrichter völlig entlastet ist. Damit wird also der unerwünschte Spannungsanstieg bei Entlastung des Gleichrichters völlig vermieden. 



   Um nun die in dem Hauptpatent angegebene Übereinstimmung der Phase der durch die dritte Harmonische in der Saugdrossel induzierten Spannung mit der Phase der Spannung, die durch den Gleichrichterstrom erzeugt wird, herbeizuführen, wird gemäss der Erfindung die   Primärwicklung   des Trans-   formatons,   dessen Sekund rklemmen der Strom der dritten Harmonischen entnommen wird, nach Art einer Zickzackschaltung ausgeführt, deren einzelne Zweige   veränderlich   sind, so dass bei richtiger Bemessung und Kombination derselben die Phasen der beiden Spannungen die erforderliche Lage zueinander erhalten. 



   Dabei können die Zweige mit Anzapfungen versehen werden, um den Phasenwinkel verändern zu können. Zu diesem Zweck kann ein Anzapf-oder Reguliersehalter verwendet werden.. 



   PATENT-ANSPRÜCHE :
1. Einrichtung zur   Gleichrichterspeisung   über einen Transformator mit Saugdrossel nach PatentNr. 115580, dadurch gekennzeichnet, dass die   Primärwicklung   dieses Transformators nach Art einer Zickzackschaltung ausgeführt ist, deren Zweige so einstellbar sind, dass die Phasen der Spannungen die erforderliche Lage zueinander erhalten. 

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



   <Desc / Clms Page number 1>
 



  Equipment for rectifier supply via transformers with chokes.



   The subject of the main patent is a device for power supply via transformers with suction throttle, in which the magnetizing current of the third harmonic for the suction throttle is generated inductively in an external power source and fed to a winding of the suction throttle. A highly saturated three-phase transformer is specified as an external current source for the third harmonic, the secondary winding of which is connected in an open three-phase winding, the current of the third harmonic being taken directly from the secondary terminals. This current is expediently fed to a special excitation winding of the suction throttle. It generates a field of three times the frequency, which induces a voltage of three times the frequency in the suction throttle, which is independent of the load on the rectifier.

   The voltage induced in the suction throttle corresponds to the voltage which is generated by the rectifier current and which represents a voltage drop in the circuit of the rectifier. However, this voltage is now independent of the load and is therefore also present when the rectifier is completely relieved. The undesired voltage rise when the rectifier is relieved is thus completely avoided.



   In order to bring about the correspondence between the phase of the voltage induced by the third harmonic in the suction throttle and the phase of the voltage generated by the rectifier current, according to the invention, the primary winding of the transformer whose secondary is clamped is the Current of the third harmonic is taken, designed in the manner of a zigzag circuit, the individual branches of which are variable, so that with correct dimensioning and combination of these, the phases of the two voltages get the required position to each other.



   The branches can be provided with taps in order to be able to change the phase angle. A tap or regulating holder can be used for this purpose.



   PATENT CLAIMS:
1. Device for rectifier supply via a transformer with suction throttle according to patent no. 115580, characterized in that the primary winding of this transformer is designed in the manner of a zigzag circuit, the branches of which can be adjusted so that the phases of the voltages are in the required position relative to one another.

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

 

Claims (1)

2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Zweige mit Anzapfungen versehen sind, um den Phasenwinkel verändern zu können. 2. Device according to claim 1, characterized in that the branches are provided with taps in order to be able to change the phase angle. 3. Einrichtungen nach Anspruch 2, dadurch gekennzeichnet, dass für die Verstellung des Phasenwinkels ein Anzapf-oder Regulierschalter dient. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. 3. Devices according to claim 2, characterized in that a tapping or regulating switch is used to adjust the phase angle. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT121206D 1928-08-25 1930-01-16 Device for rectifier supply via transformers with suction chokes. AT121206B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT115580D AT115580B (en) 1927-10-24 1928-08-25 Device for rectifier supply via transformers with suction chokes.
DE121206X 1929-01-18

Publications (1)

Publication Number Publication Date
AT121206B true AT121206B (en) 1931-02-10

Family

ID=25606377

Family Applications (1)

Application Number Title Priority Date Filing Date
AT121206D AT121206B (en) 1928-08-25 1930-01-16 Device for rectifier supply via transformers with suction chokes.

Country Status (1)

Country Link
AT (1) AT121206B (en)

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