GB175489A - Means for and methods of superposing electric currents of different frequencies uponexisting alternating current systems - Google Patents
Means for and methods of superposing electric currents of different frequencies uponexisting alternating current systemsInfo
- Publication number
- GB175489A GB175489A GB3577520A GB3577520A GB175489A GB 175489 A GB175489 A GB 175489A GB 3577520 A GB3577520 A GB 3577520A GB 3577520 A GB3577520 A GB 3577520A GB 175489 A GB175489 A GB 175489A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transformer
- transformers
- limb
- mid
- windings
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/02—Circuit arrangements for ac mains or ac distribution networks using a single network for simultaneous distribution of power at different frequencies; using a single network for simultaneous distribution of ac power and of dc power
Abstract
175,489. Taylor, A. M. Dec. 21, 1920. Polyphase systems; distributing two kinds of current by same conductors; distributing mains, arrangement of; systems depending on the use of static transformers; systems depending on the use of two or more machines. - An alternating current of one frequency is superposed upon an alternating current of a different frequency by the aid of transformers in such a manner that the insulation stress in the cores of the cables is not increased over that due to the normal supply current. The separate or independent secondary windings of a three-phase transformer SUT, Fig. 1, or three single-phase transformers are connected to the cores of two three-core cables in the manner shown, and a generator AG of different frequency is connected to the mid points of the secondary windings of the transformer and has its neutral point earthed. At the receiving end RE, the mid-points of the primary windings of a step-down transformer SDT are connected to the primary windings of an auxiliary transformer AT. Fig. 2 shows an arrangement in which three three-limb transformers are employed and the mid-point of each secondary winding S is connected to the auxiliary generator AG through a coil MC on the middle limb of the transformer. To avoid the use of an auxiliary transformer at the receiving end, a secondary winding is placed on each three-limb transformer such that the windings over the primary coils P, Fig. 3, are reversely wound and connected in series with a winding on the middle limb..In the modification shown in Fig. 5, the auxiliary transformer is dispensed with and the mid-point of the primary winding P is connected through a coil MC to a bus-bar to which a high-frequency generator AG is connected. In a further modification two single-phase transformers are employed. Further, the three-limb transformers may be replaced by a single four-limb transformer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3577520A GB175489A (en) | 1920-12-21 | 1920-12-21 | Means for and methods of superposing electric currents of different frequencies uponexisting alternating current systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3577520A GB175489A (en) | 1920-12-21 | 1920-12-21 | Means for and methods of superposing electric currents of different frequencies uponexisting alternating current systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB175489A true GB175489A (en) | 1922-02-23 |
Family
ID=10381421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3577520A Expired GB175489A (en) | 1920-12-21 | 1920-12-21 | Means for and methods of superposing electric currents of different frequencies uponexisting alternating current systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB175489A (en) |
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-
1920
- 1920-12-21 GB GB3577520A patent/GB175489A/en not_active Expired
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