IT1259738B - System for controlling the electric arc in a direct- current melting furnace - Google Patents

System for controlling the electric arc in a direct- current melting furnace

Info

Publication number
IT1259738B
IT1259738B ITUD920128A ITUD920128A IT1259738B IT 1259738 B IT1259738 B IT 1259738B IT UD920128 A ITUD920128 A IT UD920128A IT UD920128 A ITUD920128 A IT UD920128A IT 1259738 B IT1259738 B IT 1259738B
Authority
IT
Italy
Prior art keywords
controlling
direct
electric arc
current
melting furnace
Prior art date
Application number
ITUD920128A
Other languages
Italian (it)
Inventor
Gianni Gensini
Giovanni Coassin
Original Assignee
Danieli Off Mecc
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 Danieli Off Mecc filed Critical Danieli Off Mecc
Priority to ITUD920128A priority Critical patent/IT1259738B/en
Publication of ITUD920128A0 publication Critical patent/ITUD920128A0/en
Priority to AT93111269T priority patent/ATE170357T1/en
Priority to ES93111269T priority patent/ES2118859T3/en
Priority to DE69320564T priority patent/DE69320564T2/en
Priority to EP93111269A priority patent/EP0581112B1/en
Priority to US08/094,338 priority patent/US5383218A/en
Priority to CN93109350A priority patent/CN1082701A/en
Publication of ITUD920128A1 publication Critical patent/ITUD920128A1/en
Application granted granted Critical
Publication of IT1259738B publication Critical patent/IT1259738B/en

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Landscapes

  • Discharge Heating (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

System for controlling the electric arc in a direct- current melting furnace, the said furnace 12 comprising a return electrode 13 in its crown and two or more power supply electrodes 11 in its hearth, the system having thyristor rectifier means 17 and means of controlling the voltage 26, current 24 and firing angle 23, each power supply electrode 11 being served by a corresponding power supply line connected to a corresponding transformer 16, a corresponding thyristor rectifier unit 17, associated with corresponding means of controlling the voltage 26, current 24 and firing angle 23, being present after each transformer 16. <IMAGE>
ITUD920128A 1992-07-31 1992-07-31 System for controlling the electric arc in a direct- current melting furnace IT1259738B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
ITUD920128A IT1259738B (en) 1992-07-31 1992-07-31 System for controlling the electric arc in a direct- current melting furnace
AT93111269T ATE170357T1 (en) 1992-07-31 1993-07-14 DC ARC FURNACE WITH ARC DEFLECTION CONTROL
ES93111269T ES2118859T3 (en) 1992-07-31 1993-07-14 DIRECT CURRENT FUSION OVEN WITH CONTROL OF THE DEFECTION OF THE ELECTRIC ARC.
DE69320564T DE69320564T2 (en) 1992-07-31 1993-07-14 DC arc furnace with control of the arc deflection
EP93111269A EP0581112B1 (en) 1992-07-31 1993-07-14 Direct current melting furnace with control of deflection of the electric arc
US08/094,338 US5383218A (en) 1992-07-31 1993-07-20 Direct current melting furnace with control of deflection of the electric age
CN93109350A CN1082701A (en) 1992-07-31 1993-07-30 Direct current melting furnace with arc deflection control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITUD920128A IT1259738B (en) 1992-07-31 1992-07-31 System for controlling the electric arc in a direct- current melting furnace

Publications (3)

Publication Number Publication Date
ITUD920128A0 ITUD920128A0 (en) 1992-07-31
ITUD920128A1 ITUD920128A1 (en) 1994-01-31
IT1259738B true IT1259738B (en) 1996-03-26

Family

ID=11421135

Family Applications (1)

Application Number Title Priority Date Filing Date
ITUD920128A IT1259738B (en) 1992-07-31 1992-07-31 System for controlling the electric arc in a direct- current melting furnace

Country Status (1)

Country Link
IT (1) IT1259738B (en)

Also Published As

Publication number Publication date
ITUD920128A1 (en) 1994-01-31
ITUD920128A0 (en) 1992-07-31

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970724