GB775742A - Improvements in voltage regulator devices - Google Patents
Improvements in voltage regulator devicesInfo
- Publication number
- GB775742A GB775742A GB1101254A GB1101254A GB775742A GB 775742 A GB775742 A GB 775742A GB 1101254 A GB1101254 A GB 1101254A GB 1101254 A GB1101254 A GB 1101254A GB 775742 A GB775742 A GB 775742A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- winding
- transformer
- brush
- output circuit
- 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)
- Cosmetics (AREA)
Abstract
775,742. Transformers. FOSTER TRANSFORMERS, Ltd., JENNINGS, R. E., and STEWART, 1. R. MAXWELL-. April 13, 1955 [April 14, 1954], No. 11012/54. Class 38(2). A voltage regulating device incorporating an on-load transformer tap-changing system comprises coarse and fine switches mechanically coupled through a reduction gear, the coarse switch co-operating with tappings on the transformer and the fine switch supplied from a further transformer and arranged to inject a variable voltage into the output circuit. A coarse switch comprises two contacts 18, 19 moving together over studs 11 ... 17 con. nected to tappings on a transformer winding T. The fine switch comprises a movable brush 5 associated with secondary windings 3, 4 of a toroidally wound transformer, the primary winding 2 of which is energized from a further transformer winding 20. The secondary windings 3, 4 are connected to the moving contacts 18, 19 of the coarse switch and the maximum voltage from each secondary winding is made equal to half that which exists between the tappings, or studs, of the main transformer winding T. Assuming an initial zero voltage position with both moving contacts 18, 19 on stud 11, then as the brush 5 is rotated over a winding 3 or 4 the voltage of the output circuit O will be increased up to half an increment when the brush 5 has moved half a revolution. At this point the contact 19 will move to stud 12 but the voltage of the output circuit O will remain at half an increment because the Winding 3 or 4 opposes the voltage derived from the main winding. Further rotation of the brush 5 now decreases the opposing voltage until when the brush 5 has completed one revolution the opposing voltage is zero and the voltage of the output circuit O will be one increment. Continued rotation of the brush 5 will still further increase the voltage of the output circuit. Apparatus according to the invention may be associated with that of Specification 775,741. The toroidally wound transformer 2, 3, 4 is. of circular outer configuration and has a contact moving around it in direct contact with the turns thereof and associated with a further contact co-operating with a slip-ring. Each secondary winding may be in two parts wound alternately one beside the other and each connected to its associated circuit through current limiting resistors. Specifications 607,347, 619,474, [Group XXXVII], 675,615 also are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1101254A GB775742A (en) | 1954-04-14 | 1954-04-14 | Improvements in voltage regulator devices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1101254A GB775742A (en) | 1954-04-14 | 1954-04-14 | Improvements in voltage regulator devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB775742A true GB775742A (en) | 1957-05-29 |
Family
ID=9978428
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1101254A Expired GB775742A (en) | 1954-04-14 | 1954-04-14 | Improvements in voltage regulator devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB775742A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1538018B1 (en) * | 1965-07-28 | 1969-11-13 | Reinhausen Maschf Scheubeck | Step switching device for regulating transformers |
-
1954
- 1954-04-14 GB GB1101254A patent/GB775742A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1538018B1 (en) * | 1965-07-28 | 1969-11-13 | Reinhausen Maschf Scheubeck | Step switching device for regulating transformers |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2201642A (en) | Inductive regulator for coarse and fine regulation | |
US2976476A (en) | Variable voltage transformer | |
GB775742A (en) | Improvements in voltage regulator devices | |
US3614595A (en) | Ac voltage control apparatus | |
US3025442A (en) | Switching transmitter positioning of synchros | |
US3179876A (en) | Electrical systems | |
RU2772263C1 (en) | DEVICE FOR SWITCHING COILS OF WINDING OF TRANSFORMER 6(10)/0.4 kV | |
US3238442A (en) | Remote control variable autotransformer system | |
US3074036A (en) | Variable transformers | |
US3014173A (en) | Electrical control systems | |
GB1221379A (en) | Improvements in or relating to on-load voltage regulators | |
GB190921357A (en) | Improvements in Electric Motor Starting and Speed Controlling Apparatus. | |
GB775741A (en) | Improvements in voltage regulator devices | |
US854829A (en) | Potential-regulator. | |
GB1232614A (en) | ||
GB1241822A (en) | Transformers | |
GB722823A (en) | Improvements in or relating to operating systems for a discharge lamp | |
GB878045A (en) | Improvements relating to voltage controllers | |
GB886432A (en) | Improvements in and relating to on-load transformer tap-changing arrangements | |
GB1122147A (en) | Voltage regulator control device | |
GB942828A (en) | Improvements in voltage regulating transformers | |
SU130369A1 (en) | Device for signaling ground faults in networks with insulated or compensated neutral | |
GB953914A (en) | Improvements relating to apparatus for supplying a d.c. load from an a.c. source | |
JPS57147215A (en) | Single-phase autotransformer | |
GB888822A (en) | Improvements in or relating to high-voltage control of electric locomotives |