JPS56148470A - Arc welding equipment - Google Patents
Arc welding equipmentInfo
- Publication number
- JPS56148470A JPS56148470A JP5119980A JP5119980A JPS56148470A JP S56148470 A JPS56148470 A JP S56148470A JP 5119980 A JP5119980 A JP 5119980A JP 5119980 A JP5119980 A JP 5119980A JP S56148470 A JPS56148470 A JP S56148470A
- Authority
- JP
- Japan
- Prior art keywords
- windings
- crater
- hence
- main transformer
- controlling
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Landscapes
- Arc Welding Control (AREA)
Abstract
PURPOSE: To perform crater operation at the end of welding easily by dividing at least one winding of a main transformer to two windings of the same number of windings, and connecting these in parallel by way of a switch.
CONSTITUTION: During steady welding, the contacts 11 of an electromagnetic contactor are held closed; hence, the primary windings 10a, 10a' of a main transformer 10 are connected in parallel with the input and therefore the magnetical coupling of the primary windings 10a, 10a' and the secondary windings 10b, 10b' is closer and the leakage reactance is smaller. During crater controlling, the contacts 11 of the electromagnetic contactor are held opened; hence, only the primary winding 10a of the main transformer 10 is connected to the input and therefore the magnetical coupling between the primary windings 10a, 10a'; and the secondary windings 10b, 10b'; is coarser and the leakage reactance is greater. Hence, crater controlling takes place. Consequently, the crater controlling is accomplished easily without inserting any reactor to the AC side, unlike in the prior art.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5119980A JPS56148470A (en) | 1980-04-17 | 1980-04-17 | Arc welding equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5119980A JPS56148470A (en) | 1980-04-17 | 1980-04-17 | Arc welding equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56148470A true JPS56148470A (en) | 1981-11-17 |
Family
ID=12880214
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5119980A Pending JPS56148470A (en) | 1980-04-17 | 1980-04-17 | Arc welding equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56148470A (en) |
-
1980
- 1980-04-17 JP JP5119980A patent/JPS56148470A/en active Pending
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