GB1377690A - Power supplies for plasma arc systems - Google Patents

Power supplies for plasma arc systems

Info

Publication number
GB1377690A
GB1377690A GB4779672A GB4779672A GB1377690A GB 1377690 A GB1377690 A GB 1377690A GB 4779672 A GB4779672 A GB 4779672A GB 4779672 A GB4779672 A GB 4779672A GB 1377690 A GB1377690 A GB 1377690A
Authority
GB
United Kingdom
Prior art keywords
arc
current
capacitor
plasma arc
circuit
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
GB4779672A
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.)
Institut Elektrosvarki Imeni E O Patona Akademii Nauk Ukrainskoi Ssr
Original Assignee
Institut Elektrosvarki Imeni E O Patona Akademii Nauk Ukrainskoi Ssr
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 Institut Elektrosvarki Imeni E O Patona Akademii Nauk Ukrainskoi Ssr filed Critical Institut Elektrosvarki Imeni E O Patona Akademii Nauk Ukrainskoi Ssr
Priority to GB4779672A priority Critical patent/GB1377690A/en
Priority to FR7237607A priority patent/FR2204098B1/fr
Priority to DE19722253828 priority patent/DE2253828C3/en
Publication of GB1377690A publication Critical patent/GB1377690A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/125—Avoiding or suppressing excessive transient voltages or currents
    • 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
    • B23K10/00—Welding or cutting by means of a plasma
    • B23K10/006—Control circuits therefor
    • 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
    • B23K9/1006—Power supply
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
    • G05F3/02—Regulating voltage or current
    • G05F3/04—Regulating voltage or current wherein the variable is ac
    • G05F3/06—Regulating voltage or current wherein the variable is ac using combinations of saturated and unsaturated inductive devices, e.g. combined with resonant circuit
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H05H1/36—Circuit arrangements

Abstract

1377690 Power supplies for plasma arc systems INSTITUT ELEKTROSVARKI IMENT E O PATONA AKADEMII NAUK UKRAINSKOI SSR 17 Oct 1972 47796/72 Heading H2H A power supply for a plasma arc system comprises a transformer 4 having secondary windings 5 connected to a rectifier circuit 7 for supplying current to an arc between an electrode 8 and a workpiece 9, and secondary windings 6 connected to a capacitor 11 via a rectifier circuit 10 so that the arc current increases smoothly as the capacitor becomes charged. The primary windings 3 of the transformer are connected to a three-phase inductivecapacitive current stabilizer 1. Initially contacts 2 are closed, a contact 13 is opened and a circuit 15, comprising a low power D.C. source and an oscillator, strikes an ionizing arc between the electrode 8 and a nozzle 14. Since the total current is stabilized by the circuit 1, the gradual decrease of the charging current for the capacitor 11 ensures a gradual increase in the arc current supplied by the windings 5.
GB4779672A 1972-10-17 1972-10-17 Power supplies for plasma arc systems Expired GB1377690A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB4779672A GB1377690A (en) 1972-10-17 1972-10-17 Power supplies for plasma arc systems
FR7237607A FR2204098B1 (en) 1972-10-17 1972-10-24
DE19722253828 DE2253828C3 (en) 1972-11-03 Supply source of a plasma torch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4779672A GB1377690A (en) 1972-10-17 1972-10-17 Power supplies for plasma arc systems

Publications (1)

Publication Number Publication Date
GB1377690A true GB1377690A (en) 1974-12-18

Family

ID=10446280

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4779672A Expired GB1377690A (en) 1972-10-17 1972-10-17 Power supplies for plasma arc systems

Country Status (2)

Country Link
FR (1) FR2204098B1 (en)
GB (1) GB1377690A (en)

Also Published As

Publication number Publication date
FR2204098B1 (en) 1978-02-03
FR2204098A1 (en) 1974-05-17
DE2253828B2 (en) 1976-06-24
DE2253828A1 (en) 1974-05-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee