ZA942958B - Power converter device for direct current power supply to an electric arc furnace. - Google Patents
Power converter device for direct current power supply to an electric arc furnace.Info
- Publication number
- ZA942958B ZA942958B ZA942958A ZA942958A ZA942958B ZA 942958 B ZA942958 B ZA 942958B ZA 942958 A ZA942958 A ZA 942958A ZA 942958 A ZA942958 A ZA 942958A ZA 942958 B ZA942958 B ZA 942958B
- Authority
- ZA
- South Africa
- Prior art keywords
- direct current
- electric arc
- arc furnace
- converter device
- power supply
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/52—Manufacture of steel in electric furnaces
- C21C5/5229—Manufacture of steel in electric furnaces in a direct current [DC] electric arc furnace
-
- 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
- H02M7/145—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 using devices of a thyratron or thyristor type requiring extinguishing means
- H02M7/155—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 using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M7/162—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 using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only in a bridge configuration
-
- 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
- H02M7/145—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 using devices of a thyratron or thyristor type requiring extinguishing means
- H02M7/155—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 using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M7/17—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 using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only arranged for operation in parallel
-
- 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
-
- 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
- Y02P10/20—Recycling
-
- 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)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Discharge Heating (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9305183A FR2704709B1 (en) | 1993-04-30 | 1993-04-30 | Power converter device for direct current supply to an electric arc furnace. |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA942958B true ZA942958B (en) | 1995-01-05 |
Family
ID=9446645
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA942958A ZA942958B (en) | 1993-04-30 | 1994-04-28 | Power converter device for direct current power supply to an electric arc furnace. |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2704709B1 (en) |
ZA (1) | ZA942958B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19703440A1 (en) * | 1997-01-30 | 1998-08-06 | Siemens Ag | Device for direct current supply for an electric melting unit |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH614571A5 (en) * | 1976-12-29 | 1979-11-30 | Le Pex Otdel Vgni I Pi | Device for the contactless switching-over of winding sections of a regulating transformer by means of single-phase bridge rectifiers |
FR2588432B1 (en) * | 1985-10-04 | 1987-11-27 | Jeumont Schneider | DEVICE FOR SUPPLYING DIRECT CURRENT TO AT LEAST TWO ELECTRIC CHARGES HAVING A COMMON POLARITY, PARTICULARLY FOR SUPPLYING MULTIPLE ELECTRIC ARCS |
US5138630A (en) * | 1989-11-06 | 1992-08-11 | Nkk Corporation | Direct current electric arc furnace |
CA2085594A1 (en) * | 1990-06-15 | 1991-12-16 | Brian Campbell | Dc arc torch power supply |
DE4118756C2 (en) * | 1991-06-06 | 1995-11-30 | Mannesmann Ag | DC arc furnace |
-
1993
- 1993-04-30 FR FR9305183A patent/FR2704709B1/en not_active Expired - Fee Related
-
1994
- 1994-04-28 ZA ZA942958A patent/ZA942958B/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR2704709B1 (en) | 1995-06-23 |
FR2704709A1 (en) | 1994-11-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB9416872D0 (en) | An electrical power generating arrangement | |
HK1005895A1 (en) | Electrical power supply | |
EP0570976A3 (en) | Electric power supply system | |
EP0632539A3 (en) | Plug-in power supply for electrical devices. | |
EP0557850A3 (en) | Circuit arrangement for limiting the load current of a power mosfet | |
GB2274883B (en) | Electric power generation system | |
GB2332557A9 (en) | Electrical power conducting means | |
GB9302942D0 (en) | Low cost,low current power supply | |
EP0616409A3 (en) | Portable electrical power supply. | |
GB2266417B (en) | System for supplying electric power to induction furnace | |
DE3279774D1 (en) | Power supply for electric arc welding | |
GB2319126B (en) | Power supply apparatus with initial arcing sustaining circuit | |
GB9420860D0 (en) | Electric power switching arrangement | |
GB9726705D0 (en) | Power supply apparatus with DC-arc initiation assisting circuit | |
KR100236482B1 (en) | Electric arc scrap furnace | |
ZA973970B (en) | Direct current electric furnaces. | |
ZA942958B (en) | Power converter device for direct current power supply to an electric arc furnace. | |
EP0632570A3 (en) | Switch mode power supply with shortcircuit current limitation. | |
EP0740386A4 (en) | Power supply voltage supplying circuit | |
GB2303000B (en) | An electric power supply device | |
GB9417630D0 (en) | Electrical power flow controller for solar generator | |
EP0601593A3 (en) | Power supply device with current multiplication. | |
PL319465A1 (en) | Power supply system for steel-smelting electric arc furnaces | |
EP0637827A3 (en) | Rechargeable electric power supply device. | |
ITUD920176A0 (en) | CONTROLLED CURRENT POWER PROCEDURE FOR DIRECT ARC FURNACE |