JPS5725289A - Arc welding apparatus - Google Patents

Arc welding apparatus

Info

Publication number
JPS5725289A
JPS5725289A JP9891580A JP9891580A JPS5725289A JP S5725289 A JPS5725289 A JP S5725289A JP 9891580 A JP9891580 A JP 9891580A JP 9891580 A JP9891580 A JP 9891580A JP S5725289 A JPS5725289 A JP S5725289A
Authority
JP
Japan
Prior art keywords
closed
timer
controlling
contactor
interrupted
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
Application number
JP9891580A
Other languages
Japanese (ja)
Inventor
Jun Ukai
Koji Mizuno
Taro Kohara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP9891580A priority Critical patent/JPS5725289A/en
Publication of JPS5725289A publication Critical patent/JPS5725289A/en
Pending legal-status Critical Current

Links

Landscapes

  • Arc Welding Control (AREA)

Abstract

PURPOSE: To contrive reduction of power consumption, by auromatically interrupting the power supply to a cooling fan after the primary-side winding electric current is interrupted in a welding apparatus provided with a secondary-side output voltage controlling thyristor of the main transformer.
CONSTITUTION: When a controlling power source switch 4 is closed, a ccooling fan 5 rotates and a controlling voltage is impressed to a sequence circuit composed of a controlling circuit, a contactor 2, a relay 7, timers 8 and 9, etc. Then, when a welding start switch 6 is closed, welding is started because the primary winding of the main transformer 1 is connected to a power source 3, and the contactor 2 is self-supported. When the switch 6 is opened, the excitation of the contactor 2 is released and the electric current from the power source 3 to the primary winding of transformer is interrupted. Then, an always opened contact point 8b of the timer 8 is closed, an instantaneous contact point 9a of the timer 9 is closed, so that the timer 9 is self-supported. Moreover, a set time has passed, an always closed contact point 9b of the timer 9 is opened and the electric current to the fan 5 is interrupted.
COPYRIGHT: (C)1982,JPO&Japio
JP9891580A 1980-07-18 1980-07-18 Arc welding apparatus Pending JPS5725289A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9891580A JPS5725289A (en) 1980-07-18 1980-07-18 Arc welding apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9891580A JPS5725289A (en) 1980-07-18 1980-07-18 Arc welding apparatus

Publications (1)

Publication Number Publication Date
JPS5725289A true JPS5725289A (en) 1982-02-10

Family

ID=14232419

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9891580A Pending JPS5725289A (en) 1980-07-18 1980-07-18 Arc welding apparatus

Country Status (1)

Country Link
JP (1) JPS5725289A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH059764U (en) * 1991-07-24 1993-02-09 澤藤電機株式会社 Welder fan controller
JPH11254135A (en) * 1998-03-10 1999-09-21 Matsushita Electric Ind Co Ltd Ac arc welding machine
JP2002066738A (en) * 2000-08-24 2002-03-05 Daihen Corp Control method and device for fan of arc working welding machine
JP2008000805A (en) * 2006-06-26 2008-01-10 Matsushita Electric Ind Co Ltd Arc welding apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH059764U (en) * 1991-07-24 1993-02-09 澤藤電機株式会社 Welder fan controller
JPH11254135A (en) * 1998-03-10 1999-09-21 Matsushita Electric Ind Co Ltd Ac arc welding machine
JP2002066738A (en) * 2000-08-24 2002-03-05 Daihen Corp Control method and device for fan of arc working welding machine
JP2008000805A (en) * 2006-06-26 2008-01-10 Matsushita Electric Ind Co Ltd Arc welding apparatus

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