GB1288741A - - Google Patents
Info
- Publication number
- GB1288741A GB1288741A GB1288741DA GB1288741A GB 1288741 A GB1288741 A GB 1288741A GB 1288741D A GB1288741D A GB 1288741DA GB 1288741 A GB1288741 A GB 1288741A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- voltage
- stabilizing
- network
- converter
- 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
- G05F1/32—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using magnetic devices having a controllable degree of saturation as final control devices
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
- G05F3/02—Regulating voltage or current
- G05F3/04—Regulating voltage or current wherein the variable is ac
- G05F3/06—Regulating voltage or current wherein the variable is ac using combinations of saturated and unsaturated inductive devices, e.g. combined with resonant circuit
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Power Engineering (AREA)
- Control Of Electrical Variables (AREA)
Abstract
1288741 Voltage stabilizing in AC networks GENERAL ELECTRIC CO Ltd 2 Jan 1970 [2 Oct 1968] 46809/68 Heading H2H A system for stabilizing the voltage in an A.C. network includes means for anticipating and counteracting a voltage deviation in the network. In the system shown in Fig. 1, an inductive network NW is connected to a converter R through a circuit breaker CB. Control signals to the converter, which may result in transient effects, also control switches a and b. If a transient surge is likely to occur, the switch a is closed and the meshed secondary windings SS of a saturable reactor circuit PS are short-circuited for one or two cycles, resulting in a voltage reduction. The switch b is normally closed, but an impending voltage dip causes it to open, and a compensating surge is supplied by a circuit F comprising reactors AL, AL1 and capacitor A.C. connected in series with a saturable reactor load L. The switches a, b may be mechanical, or they may be thyratrons or thyristors. In an application of the invention, a circuit of the type shown in Fig. 1 may be used in conjunction with a tap changer connected to a transformer winding. The stabilizing effect of the circuit reduces the number of tap changing operations required, and a closed loop may be incorporated in the system, Fig. 3 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4680968 | 1968-10-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1288741A true GB1288741A (en) | 1972-09-13 |
Family
ID=10442675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1288741D Expired GB1288741A (en) | 1968-10-02 | 1968-10-02 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1288741A (en) |
-
1968
- 1968-10-02 GB GB1288741D patent/GB1288741A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |