GB509812A - Improvements in and relating to electric transformers - Google Patents
Improvements in and relating to electric transformersInfo
- Publication number
- GB509812A GB509812A GB11224/38A GB1122438A GB509812A GB 509812 A GB509812 A GB 509812A GB 11224/38 A GB11224/38 A GB 11224/38A GB 1122438 A GB1122438 A GB 1122438A GB 509812 A GB509812 A GB 509812A
- Authority
- GB
- United Kingdom
- Prior art keywords
- main winding
- coil
- potential
- regulating
- winding
- 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
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/025—Constructional details of transformers or reactors with tapping on coil or windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
509,812. Transformers. BRITISH THOMSONHOUSTON CO., Ltd. April 12, 1938, No. 11224. Convention date, April 15, 1937. [Class 38 (ii)] In a regulating transformer provided with a main winding 1 which co-operates, through a change-over switch 5, with a regulating coil 2 which can be operated as a series buck or boost connection and is temporarily separated from the main winding during the change over, the regulating coil 2 is provided with a potential surround 6 which is maintained at substantially the potential of the point of the main winding to which the regulating coil is connected. As shown in Fig. 1 the regulating coil 2 is formed as a single layer coil of several conductors arranged as a multiple-helix over a core, the ends of the coil being respectively connected to the contacts 3, 4 of a change-over switch, the movable contact 5 of which is connected to one end of the main winding 1. The potential surround 6 consists of a metal screen which is preferably slit longitudinally and connected by a conductor 7 to one end of the main winding 1. In a modification, part of the main winding is used as a potential surround at both sides of the regulating coil, and the contact arm of the change-over switch is connected to one end of the regulating coil and co-operates with contacts respectively connected to the end of the main winding and to a tapping on the winding, whereby the regulating coil can be connected either in series with the main winding or in parallel with the portion up to the tapping. Fig. 3 shows a further modification, wherein the regulating coil 2 comprises a normally wound tapped cylindrical coil, and the potential surround is formed on one side by a part 8 of the main winding 1 and on the other side by a balancing winding 9 of several parallel connected coils connected to the lower end of the part 8 by a conductor 10. A slit metal cylinder may be used instead of the balancing winding 9.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201734X | 1937-04-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB509812A true GB509812A (en) | 1939-07-21 |
Family
ID=5767761
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB11224/38A Expired GB509812A (en) | 1937-04-15 | 1938-04-12 | Improvements in and relating to electric transformers |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH201734A (en) |
GB (1) | GB509812A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113744981A (en) * | 2021-08-05 | 2021-12-03 | 广东云舜综合能源科技有限公司 | Trip gear voltage regulating transformer |
-
1938
- 1938-03-17 CH CH201734D patent/CH201734A/en unknown
- 1938-04-12 GB GB11224/38A patent/GB509812A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113744981A (en) * | 2021-08-05 | 2021-12-03 | 广东云舜综合能源科技有限公司 | Trip gear voltage regulating transformer |
Also Published As
Publication number | Publication date |
---|---|
CH201734A (en) | 1938-12-15 |
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