SE9400948D0 - Control of three-phase ovens - Google Patents

Control of three-phase ovens

Info

Publication number
SE9400948D0
SE9400948D0 SE9400948A SE9400948A SE9400948D0 SE 9400948 D0 SE9400948 D0 SE 9400948D0 SE 9400948 A SE9400948 A SE 9400948A SE 9400948 A SE9400948 A SE 9400948A SE 9400948 D0 SE9400948 D0 SE 9400948D0
Authority
SE
Sweden
Prior art keywords
phase
control
ovens
values
impedance
Prior art date
Application number
SE9400948A
Other languages
Swedish (sv)
Other versions
SE9400948L (en
Inventor
Roger Selin
Anders Oestrand
Original Assignee
Metallurg Consult Ab
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 Metallurg Consult Ab filed Critical Metallurg Consult Ab
Priority to SE9400948A priority Critical patent/SE9400948L/en
Publication of SE9400948D0 publication Critical patent/SE9400948D0/en
Priority to AU21522/95A priority patent/AU2152295A/en
Priority to PCT/SE1995/000274 priority patent/WO1995026118A1/en
Publication of SE9400948L publication Critical patent/SE9400948L/en

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B7/00—Heating by electric discharge
    • H05B7/02—Details
    • H05B7/144—Power supplies specially adapted for heating by electric discharge; Automatic control of power, e.g. by positioning of electrodes
    • H05B7/148—Automatic control of power
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Discharge Heating (AREA)

Abstract

A method in the control of a three-phase electrode furnace, especially an electric arc furnace, comprises the steps of controlling the electrodes on the basis of impedance or resistance desired values and impedance or resistance actual values, which are determined on the basis of measured current and voltage values, the desired values being controlled in response to the content of harmonic components of the phase currents.
SE9400948A 1994-03-22 1994-03-22 Method of controlling a three-phase electrical furnace SE9400948L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9400948A SE9400948L (en) 1994-03-22 1994-03-22 Method of controlling a three-phase electrical furnace
AU21522/95A AU2152295A (en) 1994-03-22 1995-03-17 Control of three-phase furnaces
PCT/SE1995/000274 WO1995026118A1 (en) 1994-03-22 1995-03-17 Control of three-phase furnaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9400948A SE9400948L (en) 1994-03-22 1994-03-22 Method of controlling a three-phase electrical furnace

Publications (2)

Publication Number Publication Date
SE9400948D0 true SE9400948D0 (en) 1994-03-22
SE9400948L SE9400948L (en) 1995-09-23

Family

ID=20393357

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9400948A SE9400948L (en) 1994-03-22 1994-03-22 Method of controlling a three-phase electrical furnace

Country Status (3)

Country Link
AU (1) AU2152295A (en)
SE (1) SE9400948L (en)
WO (1) WO1995026118A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1295728B1 (en) * 1997-07-31 1999-05-27 Automation Spa Centro POWER CONTROL PROCEDURE FOR ELECTRIC ARC OVEN

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE441411C (en) * 1984-02-21 1987-11-16 Metallurg Consult Ab WAY TO CONTROL AN ELECTROTHERMIC PROCESS

Also Published As

Publication number Publication date
SE9400948L (en) 1995-09-23
WO1995026118A1 (en) 1995-09-28
AU2152295A (en) 1995-10-09

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