EP0040395A3 - Electric power supplying device for electrically heating molten material - Google Patents

Electric power supplying device for electrically heating molten material Download PDF

Info

Publication number
EP0040395A3
EP0040395A3 EP81103679A EP81103679A EP0040395A3 EP 0040395 A3 EP0040395 A3 EP 0040395A3 EP 81103679 A EP81103679 A EP 81103679A EP 81103679 A EP81103679 A EP 81103679A EP 0040395 A3 EP0040395 A3 EP 0040395A3
Authority
EP
European Patent Office
Prior art keywords
winding
secondary winding
series
primary
transformers
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.)
Granted
Application number
EP81103679A
Other languages
German (de)
Other versions
EP0040395B1 (en
EP0040395A2 (en
Inventor
Fritz Dipl.-Ing. Germann
Eduard Ing.(Grad.) Kuntz
Reinhold Ing.(Grad.) Muller
Horst Ing.(Grad.) Scholz
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to AT81103679T priority Critical patent/ATE15743T1/en
Publication of EP0040395A2 publication Critical patent/EP0040395A2/en
Publication of EP0040395A3 publication Critical patent/EP0040395A3/en
Application granted granted Critical
Publication of EP0040395B1 publication Critical patent/EP0040395B1/en
Expired legal-status Critical Current

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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/0019—Circuit arrangements
    • H05B3/0023—Circuit arrangements for heating by passing the current directly across the material to be heated

Landscapes

  • Glass Melting And Manufacturing (AREA)
  • Control Of Resistance Heating (AREA)
  • Resistance Heating (AREA)
  • Discharge Heating (AREA)

Abstract

A system for generating in-phase alternating current components which are fed into a medium held in a melting trough and flow in the medium between electrodes and counterelectrodes immersed in the medium to effect resistance heating. One embodiment of the system includes a supply voltage source, and a plurality of transformers each having a primary winding and a secondary winding, with the primary windings being connected together in series and to the source, each secondary winding being connected between a respective electrode and counterelectrode to provide a respective alternating current component, and each winding having a number of turns corresponding to the desired relative amplitudes of the current components. A second embodiment of the system includes a supply voltage source, at least one input transformer having a primary winding connected to the source and at least one secondary winding, and a plurality of additional transformers each having a primary winding and a secondary winding, with the primary windings of the additional transformers being connected together in series and in a closed loop, each secondary winding of the input transformer being connected in series with at least one secondary winding of the additional transformers between a respective electrode and counterelectrode to provide a respective alternating current component, and each winding of the additional transformers having a number of turns corresponding to the desired relative amplitudes of the current components.
EP81103679A 1980-05-20 1981-05-13 Electric power supplying device for electrically heating molten material Expired EP0040395B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81103679T ATE15743T1 (en) 1980-05-20 1981-05-13 POWER SUPPLY DEVICE FOR ELECTRIC HEATING OF A MOLTEN MEDIUM.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3019133 1980-05-20
DE3019133A DE3019133C2 (en) 1980-05-20 1980-05-20 Power supply device for electrically heating a molten medium

Publications (3)

Publication Number Publication Date
EP0040395A2 EP0040395A2 (en) 1981-11-25
EP0040395A3 true EP0040395A3 (en) 1982-06-02
EP0040395B1 EP0040395B1 (en) 1985-09-18

Family

ID=6102805

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81103679A Expired EP0040395B1 (en) 1980-05-20 1981-05-13 Electric power supplying device for electrically heating molten material

Country Status (4)

Country Link
US (1) US4410998A (en)
EP (1) EP0040395B1 (en)
AT (1) ATE15743T1 (en)
DE (1) DE3019133C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4474034A (en) * 1982-09-23 1984-10-02 Avery Jr Richard J Refrigerant accumulator and charging apparatus and method for vapor-compression refrigeration system
DE3423228C2 (en) * 1984-06-21 1986-11-20 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Circuit arrangement for feeding a large number of loads of variable resistance with the same currents
US4569055A (en) * 1984-08-31 1986-02-04 Owens-Corning Fiberglas Corporation Forehearth electrode firing

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1299601A (en) * 1969-10-24 1972-12-13 Plessey Co Ltd Improvements in or relating to alternating current regulator arrangements
DE2248166A1 (en) * 1971-10-08 1973-04-12 Alsthom Cgee CONTROLLED TRANSFORMER
GB1353012A (en) * 1970-02-10 1974-05-15 Hirst Electric Ind Ltd Electrical regulators
DE2538970A1 (en) * 1974-09-06 1976-03-25 Elemelt Ltd METHOD AND DEVICE FOR MELTING GLASS
DE2626798A1 (en) * 1975-06-17 1976-12-23 Nippon Electric Glass Co DEVICE FOR EVEN HEATING OF MOLTEN GLASS

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE841489C (en) * 1943-08-24 1952-06-16 Brown Ag Device for feeding the electrodes of electric glass melting furnaces
DE1161042B (en) * 1961-09-06 1964-01-09 Duisburger Kupferhuette Round three-phase electric furnace with a four-electrode system, in particular a reduction furnace for electrothermal zinc extraction
US3182112A (en) * 1962-07-05 1965-05-04 Owens Illinois Glass Co Current balancing means for multiple electrodes in electrically heated glass meltingunits

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1299601A (en) * 1969-10-24 1972-12-13 Plessey Co Ltd Improvements in or relating to alternating current regulator arrangements
GB1353012A (en) * 1970-02-10 1974-05-15 Hirst Electric Ind Ltd Electrical regulators
DE2248166A1 (en) * 1971-10-08 1973-04-12 Alsthom Cgee CONTROLLED TRANSFORMER
DE2538970A1 (en) * 1974-09-06 1976-03-25 Elemelt Ltd METHOD AND DEVICE FOR MELTING GLASS
DE2626798A1 (en) * 1975-06-17 1976-12-23 Nippon Electric Glass Co DEVICE FOR EVEN HEATING OF MOLTEN GLASS

Also Published As

Publication number Publication date
US4410998A (en) 1983-10-18
EP0040395B1 (en) 1985-09-18
DE3019133A1 (en) 1981-11-26
EP0040395A2 (en) 1981-11-25
DE3019133C2 (en) 1983-12-15
ATE15743T1 (en) 1985-10-15

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