GB411886A - Improvements in and relating to electric phase-difference responsive devices - Google Patents
Improvements in and relating to electric phase-difference responsive devicesInfo
- Publication number
- GB411886A GB411886A GB31679/32A GB3167932A GB411886A GB 411886 A GB411886 A GB 411886A GB 31679/32 A GB31679/32 A GB 31679/32A GB 3167932 A GB3167932 A GB 3167932A GB 411886 A GB411886 A GB 411886A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- grid
- current
- transformer
- arrangement
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/006—Measuring power factor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Electrical Variables (AREA)
Abstract
411,886. Automatic regulation. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Stone, L. F. ; Congers, New York, U.S.A.) Nov. 9, 1932, No. 31679. Convention date, Nov. 9, 1931. [Class 38 (iv).] An arrangement responsive to the power factor of an A.C. circuit comprises potential and current transformers connected to the circuit, a grid-controlled vapour rectifier, and means responsive to the rectified current, such as a relay 34 controlling power-factor correcting appliances, the anode circuit of the rectifier being excited from the potential transformer and the grid circuit from the current transformer. In the arrangement shown, in which the invention is applied to a three-phase circuit having three conductors 11, 12, 13, a pair of valves 19, 20 is employed, and the potential transformer 14 is connected across two of the conductors 11, 13, while the current transformer 24 is connected in the third conductor. With this arrangement, the grid and anode voltages are displaced 90‹ for unity power factor, and the rectified current increases for leading, and decreases for lagging, power factors. Specification 296,812, [Class 38 (v)], is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US411886XA | 1931-11-09 | 1931-11-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB411886A true GB411886A (en) | 1934-06-11 |
Family
ID=21915213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31679/32A Expired GB411886A (en) | 1931-11-09 | 1932-11-09 | Improvements in and relating to electric phase-difference responsive devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB411886A (en) |
-
1932
- 1932-11-09 GB GB31679/32A patent/GB411886A/en not_active Expired
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