GB733963A - Improvements in electrical furnaces - Google Patents
Improvements in electrical furnacesInfo
- Publication number
- GB733963A GB733963A GB2200653A GB2200653A GB733963A GB 733963 A GB733963 A GB 733963A GB 2200653 A GB2200653 A GB 2200653A GB 2200653 A GB2200653 A GB 2200653A GB 733963 A GB733963 A GB 733963A
- Authority
- GB
- United Kingdom
- Prior art keywords
- windings
- current
- winding
- inductance
- series
- 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.)
- Expired
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
- H05B7/005—Electrical diagrams
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Discharge Heating (AREA)
Abstract
733,963. Automatic current control systems; control systems for consumption apparatus; inductors. BLELOCH, W. Aug. 10, 1953, No. 22006/53. Classes 38 (2) and 38 (4). In Fig. 1 an electric arc furnace 2 is supplied with alternating current through a transformer 4 in series with a saturable reactor 3. The output of a current transformer 11 is rectified and controls a bucking field 7 of a D.C. generator 6 energizing the control winding of reactor 3 so as to maintain constant furnace current. A suitable saturable reactor comprises a threelegged core 12, Fig. 2, of ferro-magnetic material carrying a D.C. winding 16 and A.C. windings 17 connected so that no alternating potential is induced in winding 16. The necessary small inductance is obtained by forming windings 17 of a number of conducting strips or a slotted pipe 19 to be equivalent to a fraction of a turn. The angle of the slots which determines the inductance may be adjustable if the strips are flexible. The A.C. windings may be connected in series by a strap 18 as shown or in parallel. The Specification also refers to three phase arrangements, manual control of saturating current, power factor' correction, and A.C. windings of low inductance formed by a largely non- inductive winding or by a straight conductor embraced by a shaped core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2200653A GB733963A (en) | 1953-08-10 | 1953-08-10 | Improvements in electrical furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2200653A GB733963A (en) | 1953-08-10 | 1953-08-10 | Improvements in electrical furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB733963A true GB733963A (en) | 1955-07-20 |
Family
ID=10172417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2200653A Expired GB733963A (en) | 1953-08-10 | 1953-08-10 | Improvements in electrical furnaces |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB733963A (en) |
-
1953
- 1953-08-10 GB GB2200653A patent/GB733963A/en not_active Expired
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