GB841753A - Improvements in electrical polyphase stirring windings - Google Patents
Improvements in electrical polyphase stirring windingsInfo
- Publication number
- GB841753A GB841753A GB36157/58A GB3615758A GB841753A GB 841753 A GB841753 A GB 841753A GB 36157/58 A GB36157/58 A GB 36157/58A GB 3615758 A GB3615758 A GB 3615758A GB 841753 A GB841753 A GB 841753A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coils
- sets
- power
- stirring
- energized
- 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
- H05B7/02—Details
-
- 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
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/34—Arrangements for circulation of melts
-
- 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
- H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
- H05B2213/02—Stirring of melted material in melting furnaces
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Electromagnetism (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Superconductive Dynamoelectric Machines (AREA)
Abstract
841,753. Electromagnetic stirring. ALLMANNA SVENSKA ELEKTRISKA A.B. Nov. 11, 1958 [Nov. 16, 1957], No. 36157/58. Class 86 Coils for stirring molten metal electromagnetically are so arranged that the full power of a 2-phase generator may be delivered to either of two sets of coils, or both may be energized simultaneously with reduced power. In the embodiment of Fig. 1, the switches 4 enable one or both sets of coils 1a, 1b, 2 to be energized, and the coils are tapped so that part may be shunted when both sets are in use simultaneously. Coils 1a, 1b of each set are connected in series with coil 2 of the other set and each system 1a, 1b, 2 is fed from a separate phase of the generator; this arrangement compensates for any difference in voltage between the two phases. In a modification, Fig. 2 (not shown), the coils are untapped. Full power may be applied to one set, or half power to both sets in series by reducing the frequency, e.g. by a Schrage motor, so that the voltage dip over each coil is reduced to half. In another embodiment, Fig. 3 (not shown) the set of coils may be energized at full power or both sets put in parallel by means of switches 5. In this case the frequency is increased in order to obtain maximum stirring power at half current.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE841753X | 1957-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB841753A true GB841753A (en) | 1960-07-20 |
Family
ID=20358381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB36157/58A Expired GB841753A (en) | 1957-11-16 | 1958-11-11 | Improvements in electrical polyphase stirring windings |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE572983A (en) |
| GB (1) | GB841753A (en) |
-
0
- BE BE572983D patent/BE572983A/xx unknown
-
1958
- 1958-11-11 GB GB36157/58A patent/GB841753A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE572983A (en) |
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