GB1123080A - Power supply apparatus for arc producing equipment - Google Patents

Power supply apparatus for arc producing equipment

Info

Publication number
GB1123080A
GB1123080A GB3194967A GB3194967A GB1123080A GB 1123080 A GB1123080 A GB 1123080A GB 3194967 A GB3194967 A GB 3194967A GB 3194967 A GB3194967 A GB 3194967A GB 1123080 A GB1123080 A GB 1123080A
Authority
GB
United Kingdom
Prior art keywords
supply
arc
high frequency
thyristor
energizes
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.)
Expired
Application number
GB3194967A
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.)
Siemens AG
Original Assignee
Siemens AG
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 AG filed Critical Siemens AG
Publication of GB1123080A publication Critical patent/GB1123080A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/20—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for electronic equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/06—Arrangements or circuits for starting the arc, e.g. by generating ignition voltage, or for stabilising the arc
    • B23K9/067—Starting the arc
    • B23K9/0672—Starting the arc without direct contact between electrodes
    • B23K9/0673—Ionisation of the arc gap by means of a tension with a step front (pulses or high frequency tensions)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls

Abstract

1,123,080. Control systems for arc producing apparatus. SIEMENS A.G. 11 July, 1967 [12 July, 1966], No. 31949/67. Heading H2H. Arc producing apparatus 7 fed from a rectified A.C. supply and provided with a high frequency device 8 for initiating the arc is further provided with means for shunting or short-circuiting the input to the device 8 after the arc 7 is struck so as to disable the device, filter circuits 5, 6; 22, 23 being incorporated into the supply circuits to prevent high frequency transients from reaching the supply. Closure of switch 17 energizes the high frequency device 8 to strike the arc 7 and also energizes transformer 11 to supply anode-cathode potential for a thyristor 9. When the are 7 strikes and takes a supply from rectifier 1, a pulse is developed by a transformer 2 which fires the thyristor 9. Firing of thyristor 9 gates a second thrystor 10 whereupon a shunt circuit is developed across the input to the high frequency device 8 so as to reduce its applied voltage thus to terminate the functions of the device. When the current in the arc 7 is sufficient the potential across a resistor 3 energizes relay 15 to remove the supply to the high frequency device 8. A thermal switch 16 is provided in the supply to the device 8 for protective purposes. The rectifier bridge 18 and thyristor 10 may be replaced by a pair of back-to-back thryistors.
GB3194967A 1966-07-12 1967-07-11 Power supply apparatus for arc producing equipment Expired GB1123080A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES0104752 1966-07-12

Publications (1)

Publication Number Publication Date
GB1123080A true GB1123080A (en) 1968-08-14

Family

ID=7526078

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3194967A Expired GB1123080A (en) 1966-07-12 1967-07-11 Power supply apparatus for arc producing equipment

Country Status (3)

Country Link
CH (1) CH463617A (en)
DE (1) DE1565820A1 (en)
GB (1) GB1123080A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2349388A1 (en) * 1976-04-28 1977-11-25 Svetsia Ab ARC WELDING PLANT

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56134069A (en) * 1980-03-19 1981-10-20 Mitsubishi Electric Corp Arc generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2349388A1 (en) * 1976-04-28 1977-11-25 Svetsia Ab ARC WELDING PLANT

Also Published As

Publication number Publication date
CH463617A (en) 1968-10-15
DE1565820A1 (en) 1970-05-14

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