GB716596A - Control arrangements for pre-magnetised transformers - Google Patents
Control arrangements for pre-magnetised transformersInfo
- Publication number
- GB716596A GB716596A GB31989/52A GB3198952A GB716596A GB 716596 A GB716596 A GB 716596A GB 31989/52 A GB31989/52 A GB 31989/52A GB 3198952 A GB3198952 A GB 3198952A GB 716596 A GB716596 A GB 716596A
- Authority
- GB
- United Kingdom
- Prior art keywords
- current
- rectifier
- load
- winding
- primary
- 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
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/02—Adaptations of transformers or inductances for specific applications or functions for non-linear operation
- H01F38/04—Adaptations of transformers or inductances for specific applications or functions for non-linear operation for frequency changing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
- H01F2029/143—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias with control winding for generating magnetic bias
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Ac-Ac Conversion (AREA)
Abstract
716,596. Automatic current control systems. LICENTIA PATENT-VERWALTUNGS-GES. Dec. 17,1952 [Dec. 17, 1951; Feb. 21, 1952], No. 31989/52 Class 38(4) The current in a load circuit (particularly a welding circuit) supplied from a frequency multiplying transformer having a Scott connected three-phase primary and a single-phase secondary as disclosed in Specification 714,146, [Group XXXII], is maintained substantially constant by varying the saturation of the transformer core in accordance with either load current or load voltage. In addition to the primary and secondary windings (not shown) the transformer V, Fig. 2, has opposed saturating windings. H, G. The reference winding H is energized over rectifier G1 from the supply mains and the winding G is energized by the amplified resultant of a voltage proportional to load current derived from current transfomer S and rectifier G2 and a reference voltage derived from rectifier G3. Thus any increase in load current reduces the nett saturation to restore the current to the required value. In another embodiment, Fig. 5, the primary and secondary windings are again not shown and the reference winding H is aided by the winding Z which is energized over a rectifier in accordance with the load voltage. A choke Dr operating in its non-leiriear range may be included to improve the accuracy of regulation.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE716596X | 1951-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB716596A true GB716596A (en) | 1954-10-06 |
Family
ID=6626453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31989/52A Expired GB716596A (en) | 1951-12-17 | 1952-12-17 | Control arrangements for pre-magnetised transformers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB716596A (en) |
-
1952
- 1952-12-17 GB GB31989/52A patent/GB716596A/en not_active Expired
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