AT157904B - Arrangement for arc operation, in particular arc welding, with frequency transformer. - Google Patents

Arrangement for arc operation, in particular arc welding, with frequency transformer.

Info

Publication number
AT157904B
AT157904B AT157904DA AT157904B AT 157904 B AT157904 B AT 157904B AT 157904D A AT157904D A AT 157904DA AT 157904 B AT157904 B AT 157904B
Authority
AT
Austria
Prior art keywords
frequency
ignition
arrangement according
circuit
superimposed
Prior art date
Application number
Other languages
German (de)
Inventor
Alfred Dr Ing Grabner
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 AT157904B publication Critical patent/AT157904B/en

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  • Arc Welding Control (AREA)

Description

  

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    Anordnung   für Lichtbogenbetrieb, insbesondere   Liehtbogensehweissung,   mit Frequenztransformator. 
 EMI1.1 
 

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 zu hindern. Die   Kondensatorspannung muss   daher ein Vielfaches der Lichtbogenspannung betragen : sie wird im normalen Betrieb durch die Spannung an der   Drossel i   kompensiert, so dass an der Lichtbogenstreeke keine   hohe, den Sehweisser   gefährdende Spannung auftritt. Die Drosselspule arbeitet zweckmässig bei   kurzgeschlossener   Lichtbogenstrecke im Bereich magnetischer   Sättigung.   



   PATENT-ANSPRÜCHE :
1. Anordnung für Lichtbogenbetrieb, insbesondere für Lichtbogenschweissung mit Frequenztransformator, dadurch gekennzeichnet, dass   sekundärseitig   eine höhere als die sekundäre Grundfrequenz und mit dieser teilerfremde Frequenz überlagert wird.



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    Arrangement for arc operation, especially light arc welding, with frequency transformer.
 EMI1.1
 

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 to prevent. The capacitor voltage must therefore be a multiple of the arc voltage: in normal operation it is compensated by the voltage at the choke i, so that no high voltage that could endanger the welder occurs in the arc line. The choke coil works appropriately when the arc gap is short-circuited in the area of magnetic saturation.



   PATENT CLAIMS:
1. Arrangement for arc operation, in particular for arc welding with a frequency transformer, characterized in that on the secondary side a higher than the secondary fundamental frequency and with this partially extraneous frequency is superimposed.

Claims (1)

2. Frequenztransformator für die Anordnung nach Anspruch 1, dadurch gekennzeichnet, dass die der sekundären Grundfrequenz ilberlagerte und mit dieser teilerfremde höhere Ziindfrequenz dem Frequenztransformator zweckmässig unter Benutzung von Sättigungsoberwellen entnommen wird. 2. Frequency transformer for the arrangement according to claim 1, characterized in that the higher ignition frequency superimposed on the secondary fundamental frequency and coprime with this higher ignition frequency is expediently taken from the frequency transformer using saturation harmonics. 3. Anordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Ziindkreis für die überlagerte höhere Frequenz als Schwingungskreis mit Kondensator und Drosselspule (i) ausgebildet ist. 3. Arrangement according to claim 1 or 2, characterized in that the ignition circuit for the superimposed higher frequency is designed as an oscillating circuit with capacitor and choke coil (i). 4. Anordnung nach Anspruch 3, dadurch gekennzeichnet, dass Kondensator 'J und Drosselspule (i) des Zündkreises für die überlagerte Zündfrequenz auf Resonanz abgestimmt sind. 4. Arrangement according to claim 3, characterized in that the capacitor J and the choke coil (i) of the ignition circuit for the superimposed ignition frequency are tuned to resonance. 5. Anordnung nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass bei kurzgeschlossener Lichtbogenstrecke die Drosselspule (i) des Resonanzkreises im Bereich magnetischer Sättigung arbeitet. 5. Arrangement according to claim 3 or 4, characterized in that when the arc gap is short-circuited, the choke coil (i) of the resonance circuit operates in the area of magnetic saturation. 6. Anordnung nach Anspruch 3, 4 oder 5, dadurch gekennzeichnet, dass bei kurzgeschlossener Lichtbogenstrecke die Spannung des Resonanzkreiskondensators die notwendige Zündspannung für den der Liehtbogenstrecke überlagerten höherfrequenten Zündstrom erreicht. 6. Arrangement according to claim 3, 4 or 5, characterized in that when the arc gap is short-circuited, the voltage of the resonance circuit capacitor reaches the necessary ignition voltage for the higher-frequency ignition current superimposed on the arc gap. 7. Anordnung nach Anspruch 1 oder einem der folgenden Ansprüche, dadurch gekennzeichnet, dass der Sekundärkreis des Frequenztransformators durch frequenzabhängigen Widerstand [Drosselspule ] gegen die Zündfrequenz gesperrt ist. EMI2.1 7. Arrangement according to claim 1 or one of the following claims, characterized in that the secondary circuit of the frequency transformer is blocked against the ignition frequency by a frequency-dependent resistor [choke coil]. EMI2.1
AT157904D 1938-03-18 1938-03-18 Arrangement for arc operation, in particular arc welding, with frequency transformer. AT157904B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT157904T 1938-03-18

Publications (1)

Publication Number Publication Date
AT157904B true AT157904B (en) 1940-02-10

Family

ID=3649566

Family Applications (1)

Application Number Title Priority Date Filing Date
AT157904D AT157904B (en) 1938-03-18 1938-03-18 Arrangement for arc operation, in particular arc welding, with frequency transformer.

Country Status (1)

Country Link
AT (1) AT157904B (en)

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