GB455844A - Improvements in and relating to means for automatically controlling the voltage of an a.c. circuit - Google Patents
Improvements in and relating to means for automatically controlling the voltage of an a.c. circuitInfo
- Publication number
- GB455844A GB455844A GB7872/36A GB787236A GB455844A GB 455844 A GB455844 A GB 455844A GB 7872/36 A GB7872/36 A GB 7872/36A GB 787236 A GB787236 A GB 787236A GB 455844 A GB455844 A GB 455844A
- Authority
- GB
- United Kingdom
- Prior art keywords
- selector
- motor
- supply
- operating
- voltage
- 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
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
- G05F1/14—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Control Of Multiple Motors (AREA)
Abstract
455,844. Automatic control systems. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. March 16, 1936, No. 7872. Convention date, March 15, 1935. [Class 38 (iv)] Electromotive force. -Comprises a regulating arrangement in which the voltage of an A.C. supply is adjusted in dependence on the variations of the third harmonic voltage obtained from the open-delta secondary of a transformer connected to the supply. In one form the harmonic voltage operates a relay which controls a motor for adjusting a transformer selector switch. In a modification the harmonic voltage is supplied directly to the motor operating the selector, the motor having applied to it a counter torque so that upon difference of the torques the selector is actuated. The counter torque may be supplied by an opposed motor g connected to the supply, the shaft f operating the selector or operating a switch controlling the selector motor. In a further modification the two motors run continuously and are connected through a differential gear.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE455844X | 1935-03-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB455844A true GB455844A (en) | 1936-10-28 |
Family
ID=6539095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7872/36A Expired GB455844A (en) | 1935-03-15 | 1936-03-16 | Improvements in and relating to means for automatically controlling the voltage of an a.c. circuit |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB455844A (en) |
-
1936
- 1936-03-16 GB GB7872/36A patent/GB455844A/en not_active Expired
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