TW255008B - - Google Patents

Info

Publication number
TW255008B
TW255008B TW083102184A TW83102184A TW255008B TW 255008 B TW255008 B TW 255008B TW 083102184 A TW083102184 A TW 083102184A TW 83102184 A TW83102184 A TW 83102184A TW 255008 B TW255008 B TW 255008B
Authority
TW
Taiwan
Prior art keywords
pct
arc
furnace
connection
sec
Prior art date
Application number
TW083102184A
Other languages
English (en)
Original Assignee
Asea Brown Boveri
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 Asea Brown Boveri filed Critical Asea Brown Boveri
Application granted granted Critical
Publication of TW255008B publication Critical patent/TW255008B/zh

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B7/00Heating by electric discharge
    • H05B7/02Details
    • H05B7/144Power supplies specially adapted for heating by electric discharge; Automatic control of power, e.g. by positioning of electrodes
    • H05B7/148Automatic control of power
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/08Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces heated electrically, with or without any other source of heat
    • F27B3/085Arc furnaces
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M1/00Details of apparatus for conversion
    • H02M1/08Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Discharge Heating (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Vending Machines For Individual Products (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Control Of Electrical Variables (AREA)
  • Furnace Details (AREA)
  • Arc Welding Control (AREA)
TW083102184A 1993-03-18 1994-03-14 TW255008B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9300897A SE501025C2 (sv) 1993-03-18 1993-03-18 Ugnsutrustning

Publications (1)

Publication Number Publication Date
TW255008B true TW255008B (zh) 1995-08-21

Family

ID=20389269

Family Applications (1)

Application Number Title Priority Date Filing Date
TW083102184A TW255008B (zh) 1993-03-18 1994-03-14

Country Status (9)

Country Link
US (1) US5583883A (zh)
EP (1) EP0691068B1 (zh)
CN (1) CN1056719C (zh)
AT (1) ATE191310T1 (zh)
DE (1) DE69423749T2 (zh)
ES (1) ES2147785T3 (zh)
SE (1) SE501025C2 (zh)
TW (1) TW255008B (zh)
WO (1) WO1994022279A1 (zh)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5991327A (en) * 1995-10-26 1999-11-23 Inverpower Controls Ltd. Smart predictive line controller for AC and DC electric arc furnaces
US6274851B1 (en) 1999-08-31 2001-08-14 Inverpower Controls Ltd. Electric arc furnace controller
ES2172433B1 (es) * 2000-10-19 2003-06-16 Ferroatlantica Sl Equipo multifrecuencia detector del estado de los electrodos en los hornos de arco electrico.
AU1683401A (en) * 1999-11-16 2001-05-30 Centre D'innovation Sur Le Transport D'energie Du Quebec Method and apparatus to facilitate restriking in an arc-furnace
US6687284B1 (en) * 1999-11-16 2004-02-03 Centre d'Innovation sur le Transport d'Energie du Québec Method and apparatus to facilitate restriking in an arc-furnace
EP1375628A3 (en) * 2000-01-21 2004-12-08 Integrated Environmental Technologies, Llc. Methods and apparatus for treating waste
BRPI0515356B1 (pt) 2004-09-01 2017-10-10 Hatch Ltd. "electric oven and method for operating an electric oven"
US20080056327A1 (en) * 2006-08-30 2008-03-06 Hatch Ltd. Method and system for predictive electrode lowering in a furnace
DE102013227190A1 (de) * 2013-12-27 2015-07-02 Siemens Aktiengesellschaft Vorrichtung und Verfahren zur stabilen Lichtbogenerzeugung und insbesondere zur Erhöhung des Wirkleistungseintrags bei einem Elektrolichtbogenofen
CN105259439A (zh) * 2015-10-19 2016-01-20 湖北华宏电力科技有限公司 矿热炉熔池运行电气参数在线检测装置
EP3297403A1 (de) * 2016-09-15 2018-03-21 Primetals Technologies Germany GmbH Umrichtergespeister lichtbogenofen mit kondensatoranordnung im sekundärkreis
CN209844851U (zh) * 2018-02-11 2019-12-24 于文 新型直流冶炼电炉

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2250711C3 (de) * 1972-10-16 1978-06-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen Steuerbare Stromversorgungsanlage für einen Lichtbogen-Schmelzofen
FR2462079A1 (fr) * 1979-07-19 1981-02-06 Cem Comp Electro Mec Procede et dispositif de regulation d'arc sur les fours a arc
US4677643A (en) * 1984-03-09 1987-06-30 Licentia Patent-Verwaltungs-Gmbh Device for feeding one or a plurality of electrodes in an electrothermal furnace
DE3512177C2 (de) * 1985-04-03 1997-01-16 Mannesmann Ag Verfahren zur Symmetrierung elektrischer Größen in Drehstrom-Lichtbogenöfen und Vorrichtung zur Durchführung des Verfahrens
DE3544005A1 (de) * 1985-12-13 1987-06-19 Leybold Heraeus Gmbh & Co Kg Einrichtung zum regeln des abstandes einer schmelzelektrode zur oberflaeche des schmelzguts in einem vakuumlichtbogenofen
CA2030686C (en) * 1989-11-30 1999-10-05 Gianni Gensini Direct-arc electric furnace fed with controlled current and method to feed a direct-arc furnace with controlled current
US5155740A (en) * 1990-10-22 1992-10-13 Nkk Corporation Flicker compensating apparatus for DC arc furnace
DE4309640A1 (de) * 1993-03-25 1994-09-29 Abb Management Ag Gleichstrom-Lichtbogenofenanlage

Also Published As

Publication number Publication date
EP0691068B1 (en) 2000-03-29
CN1056719C (zh) 2000-09-20
SE9300897D0 (sv) 1993-03-18
DE69423749D1 (de) 2000-05-04
SE9300897L (sv) 1994-09-19
US5583883A (en) 1996-12-10
SE501025C2 (sv) 1994-10-24
ATE191310T1 (de) 2000-04-15
WO1994022279A1 (en) 1994-09-29
CN1122180A (zh) 1996-05-08
EP0691068A1 (en) 1996-01-10
DE69423749T2 (de) 2000-11-09
ES2147785T3 (es) 2000-10-01

Similar Documents

Publication Publication Date Title
TW255008B (zh)
EP1013792A4 (en) SUPPLY BLOCK FOR CATHODIC SPRAY DEVICE
MX9606668A (es) Metodo y disposicion del circuito para operar una lampara de descarga de alta presion.
EP0618665A3 (en) Switched-mode switching power supply with a duty cycle limited by feedback.
EP0980133A3 (en) Switched mode power supply and controlling method thereof
AU6608400A (en) High pulse rate pulse power system with fast rise time and low leakage current
EP0746087A3 (en) Low drop-out power supplies
ES8705181A1 (es) Sistema de soldadura o de corte por plasma
MY121118A (en) A portable telephone and a method of switching power on
DE69107705D1 (de) Elektrode zum Gebrauch im Plasmalichtbogenbrenner.
SE9300306D0 (sv) Saett att reglera stroemtillfoersel till en elektrostatisk stoftavskiljare
CA2266900A1 (en) Method and arrangement for controlling functions in a program-controlled circuit arrangement when the operating voltage fails
ES2073342A1 (es) Procedimiento para el afinado de masas fundidas oxidicas.
EP0944154A3 (en) Power supply circuit
EP0598578A3 (en) Symmetrical circuit with bipolar bias current source transistors ensuring a high rate of rejection of supply noise.
EP0652631A3 (en) AC / DC power supply.
DE59401730D1 (de) Gepuffertes gleichspannungsversorgungssystem
EP0519882A3 (en) Equipment for the generation of stabilized high direct voltage, particularly for use in combination with a non-polluting muffler
AU4031489A (en) A circuit for starting and operating a gas discharge lamp
TW343422B (en) Circuit arrangement
KR920018439A (ko) 직류 아크 용해 장치
KR20000031327A (en) Electronic clock
CA2117648A1 (en) Circuitry for superimposing small, low energy signals and large, essentially higher energy signals
HU9503413D0 (en) Burglar-proof glass pane
CA2402740A1 (en) Circuitry for supplying a controlled signal to a drive system