GB392953A - Improvements in and relating to means for eliminating undesirable harmonics in electric circuits - Google Patents
Improvements in and relating to means for eliminating undesirable harmonics in electric circuitsInfo
- Publication number
- GB392953A GB392953A GB3224931A GB3224931A GB392953A GB 392953 A GB392953 A GB 392953A GB 3224931 A GB3224931 A GB 3224931A GB 3224931 A GB3224931 A GB 3224931A GB 392953 A GB392953 A GB 392953A
- Authority
- GB
- United Kingdom
- Prior art keywords
- driven
- harmonic frequency
- harmonic
- fundamental
- mains
- 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
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/16—Synchronous generators
- H02K19/36—Structural association of synchronous generators with auxiliary electric devices influencing the characteristic of the generator or controlling the generator, e.g. with impedances or switches
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
392,953. Supply systems. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and COE, R. T., Brandeth, Dunchurch Road, Overslade, Rugby. Nov. 20, 1931, No. 32249. [Class 38 (iv).] In order to absorb undesirable harmonics present in an A.C. system a synchronous machine generating a voltage of fundamental frequency and one or more voltages of harmonic frequency is connected to the system. The Figure shows a fundamental frequency generator F coupled to harmonic frequency generators H1, H2, the windings of all being in series and the polepieces of all having squirrel-cage windings to compensate armature reaction. Each machine element has an independent field winding whereby the component voltages may each be varied in amplitude and means such as racking stators are provided for adjusting the phase relationship of each component. The machine may be self-driven and may be coupled to a mechanical load or an auxiliary generator supplying its power to the mains. The harmonic frequency generators may be short-circuited when starting by a switch T. An independently-driven fundamental frequency generator may be connected in series with a motor-driven harmonic frequency generator or a single machine element designed to generate the fundamental and harmonic frequencies may be self-driven or motor -driven from the mains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3224931A GB392953A (en) | 1931-11-20 | 1931-11-20 | Improvements in and relating to means for eliminating undesirable harmonics in electric circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3224931A GB392953A (en) | 1931-11-20 | 1931-11-20 | Improvements in and relating to means for eliminating undesirable harmonics in electric circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB392953A true GB392953A (en) | 1933-05-22 |
Family
ID=10335660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3224931A Expired GB392953A (en) | 1931-11-20 | 1931-11-20 | Improvements in and relating to means for eliminating undesirable harmonics in electric circuits |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB392953A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE749488C (en) * | 1940-05-04 | 1945-01-13 | Arrangement for compensating the harmonics occurring in power networks |
-
1931
- 1931-11-20 GB GB3224931A patent/GB392953A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE749488C (en) * | 1940-05-04 | 1945-01-13 | Arrangement for compensating the harmonics occurring in power networks |
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