JPS56126072A - Arc welding machine - Google Patents
Arc welding machineInfo
- Publication number
- JPS56126072A JPS56126072A JP2991280A JP2991280A JPS56126072A JP S56126072 A JPS56126072 A JP S56126072A JP 2991280 A JP2991280 A JP 2991280A JP 2991280 A JP2991280 A JP 2991280A JP S56126072 A JPS56126072 A JP S56126072A
- Authority
- JP
- Japan
- Prior art keywords
- turned
- switch
- main transformer
- electromagnetic switch
- thyristors
- 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 eliminae the no-load loss of the main transformer and the power loss due to the cooling fan, by providing the electromagnetic switch having an off delay circuit in the primary side of the main transformer in the arc welding machine of the system where the output is intermitted by the thyristor.
CONSTITUTION: Electromagnetic switch MC is provided in the primary side of the main transformer, and welding torch 20 is connected to the secondary side through thyristors 16aW16f, and trigger switch 24 which turns on thyristors and delay timer TD which is interlocked with switch 24 and is provided with the off delay function to control electromagnetic switch MC are installed. When trigger switch 24 is turned off, thyristors 16aW16f are turned off but electromagnetic switch MC is turned off with the delay of a fixed time; and therefore, if trigger switch 24 is not turned on again after a fixed time, the electromagnetic switch is turned off to eliminate the no-load loss of the main transformer and the power loss of colling fan 28.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2991280A JPS56126072A (en) | 1980-03-10 | 1980-03-10 | Arc welding machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2991280A JPS56126072A (en) | 1980-03-10 | 1980-03-10 | Arc welding machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56126072A true JPS56126072A (en) | 1981-10-02 |
Family
ID=12289194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2991280A Pending JPS56126072A (en) | 1980-03-10 | 1980-03-10 | Arc welding machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56126072A (en) |
-
1980
- 1980-03-10 JP JP2991280A patent/JPS56126072A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS56126072A (en) | Arc welding machine | |
ES8308656A1 (en) | Differential protective device with inherent power supply. | |
JPS5725289A (en) | Arc welding apparatus | |
JPS5650784A (en) | Arc welder | |
JPS54113832A (en) | Inverter device | |
JPS5726176A (en) | Power source device for electric prevention for corrosion provided with switch controlling output current | |
JPS55127879A (en) | Activating system for gate-turn-off control rectifier element | |
JPS5479442A (en) | Starting system of static type reactive power regulating device | |
JPS5419125A (en) | Misoperation preventive circuit for power inverter | |
JPS542954A (en) | Powe source circuit of direct current arc welding equipment | |
JPS5686679A (en) | Direct current arc welding machine | |
JPS5542749A (en) | Electrical discharge machining device | |
JPS51140150A (en) | Safeguard for alternating current-alternating current converter | |
JPS5614319A (en) | Nonelectric arc tap switching control unit | |
JPS53107759A (en) | Microwave oven | |
JPS5391361A (en) | Power supply device | |
JPS53104447A (en) | Power circuit for electronic oven | |
JPS5395562A (en) | Switch | |
JPS56166791A (en) | Motor driving system | |
JPS5312538A (en) | High-frequency heating unit | |
JPS56129581A (en) | Inverter | |
JPS54135315A (en) | Power source stabilizing system | |
JPS5537863A (en) | Auxiliary power feeder for switching | |
JPS5756157A (en) | Alternating current welder | |
JPS55125080A (en) | Controlling method for power conversion unit |