GB518000A - Improvements in and relating to phase changing arrangements - Google Patents
Improvements in and relating to phase changing arrangementsInfo
- Publication number
- GB518000A GB518000A GB2466338A GB2466338A GB518000A GB 518000 A GB518000 A GB 518000A GB 2466338 A GB2466338 A GB 2466338A GB 2466338 A GB2466338 A GB 2466338A GB 518000 A GB518000 A GB 518000A
- Authority
- GB
- United Kingdom
- Prior art keywords
- condensers
- motor
- delta
- windings
- phase changing
- 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
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
- H01F30/12—Two-phase, three-phase or polyphase transformers
- H01F30/14—Two-phase, three-phase or polyphase transformers for changing the number of phases
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
Abstract
518.000. Phase changing; running polyphase motors from single phase supply. BRITISH THOMSON-HOUSTON CO., Ltd., and MAGGS, A. H.' Aug. 22, 1938, No. 24663. [Class 38 (ii)] In a Ferraris-Arno system in which a capacitor motor is employed as pilot motor as described in Specification 441,062, condensers 6, 7, 8 are connected effectively in series with the primary windings 3, 4, 5 of the motor to neutralize the leakage reactance thereof. In an alternative arrangement, Fig. 2, for star-connected windings, the starpoint is opened and a delta-connected arrangement of condensers 13, 14, 15 is inserted. With delta-connected windings, the condensers are inserted in the sides of the delta. In a further arrangement, a single condenser is inserted between one of the phases and the third line of the outgoing three-phase supply. In all arrangements, the condenser or condensers may be connected through a step-up transformer, andresistances may be connected across the condensers for suppressing self-excitation of the motor. Specification 485,495 also is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2466338A GB518000A (en) | 1938-08-22 | 1938-08-22 | Improvements in and relating to phase changing arrangements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2466338A GB518000A (en) | 1938-08-22 | 1938-08-22 | Improvements in and relating to phase changing arrangements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB518000A true GB518000A (en) | 1940-02-14 |
Family
ID=10215267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2466338A Expired GB518000A (en) | 1938-08-22 | 1938-08-22 | Improvements in and relating to phase changing arrangements |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB518000A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2423348A (en) * | 1944-07-12 | 1947-07-01 | Gen Electric | Phase converter |
-
1938
- 1938-08-22 GB GB2466338A patent/GB518000A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2423348A (en) * | 1944-07-12 | 1947-07-01 | Gen Electric | Phase converter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1376210A (en) | Dynamoelectric machine having an excitation system | |
| GB518000A (en) | Improvements in and relating to phase changing arrangements | |
| GB966576A (en) | Improvements in or relating to rotary electric machines | |
| GB453862A (en) | Improvements in and relating to alternating electric current motors | |
| GB549861A (en) | Improvements in and relating to electric transformers | |
| GB438217A (en) | Improvements in and relating to systems of and apparatus for converting electric currents | |
| GB383346A (en) | Improvements in or relating to single phase induction motors | |
| GB562289A (en) | Improvements in and relating to transformer regulating arrangements for polyphase electric supply systems | |
| SU55166A1 (en) | Device for single-phase induction synchronous angle transmission | |
| GB378975A (en) | Improvements in or relating to electric motors | |
| GB503446A (en) | Improvements in electric rectifiers | |
| GB632918A (en) | Improvements relating to the operation of a polyphase electric motor from a single phase source | |
| GB479112A (en) | Supplying a single-phase load from a three-phase supply | |
| GB505301A (en) | Improvements in or relating to arrangements for supplying direct current electric circuits from three-phase alternating current electric circuits | |
| GB428538A (en) | Improvements in and relating to electric motors | |
| GB430875A (en) | Improvements in and relating to arrangements for electric braking of three-phase alternating current electric motors | |
| GB405773A (en) | Improvements in and relating to means for eliminating undesirable harmonics in electrical circuits | |
| GB392953A (en) | Improvements in and relating to means for eliminating undesirable harmonics in electric circuits | |
| GB410090A (en) | Improvements in and relating to electric motor starting systems | |
| GB514943A (en) | Improvements in or relating to means for synchronising single or polyphase alternating current systems | |
| GB392268A (en) | Improvements in and relating to the protection of electrical apparatus | |
| GB1031669A (en) | Two-layer winding for induction machines | |
| GB193879A (en) | Improvements in and relating to electric motors | |
| GB499787A (en) | Improvements in and relating to electric motors | |
| GB422553A (en) | Improvements in and relating to electric motor control systems |