GB1375013A - - Google Patents
Info
- Publication number
- GB1375013A GB1375013A GB4976971A GB4976971A GB1375013A GB 1375013 A GB1375013 A GB 1375013A GB 4976971 A GB4976971 A GB 4976971A GB 4976971 A GB4976971 A GB 4976971A GB 1375013 A GB1375013 A GB 1375013A
- Authority
- GB
- United Kingdom
- Prior art keywords
- power
- balancing
- reactive power
- inductive
- capacitors
- 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
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
- H02J3/1828—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepwise control, the possibility of switching in or out the entire compensating arrangement not being considered as stepwise control
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electrical Variables (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
1375013 Automatic control of reactive power B B C BROWN BOVERI & CO Ltd 26 Oct 1971 [28 Oct 1970] 49769/71 Heading G3R [Also in Division H2] An induction crucible furnace having induction coils R1, X1 &c. and compensation capacitors C1, C4, &c. also incorporates further capacitors C10, C11 selectively shuntable by a switching network S1-S6 across any of the coils, the network being controlled by compensation and load balancing regulators which respond to respective current transformers f1, f4 &c. On the assumption that the compensating reactive power is always greater than the highest balancing reactive power, all the reactive power components can be combined into a capacitor bank which includes capacitors C10, C11 (shown schematically in the figure). It is stated that each capacitor C7-C9 has a power rating which is such as to compensate the maximum inductive power of its coil, and is coupled to transformers fl, f4 &c. in such a way that no compensating action appears to be required and so that the available balancing power therefrom appears to the balancing regulator to be an inductive one. This regulator then causes S1-S6 to switch enough capacitance from C10, C11 to make up the difference between the required balancing power and the apparent inductive reactive power provided by C7 &c.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702052772 DE2052772A1 (en) | 1970-10-28 | 1970-10-28 | Symmetry device for induction furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1375013A true GB1375013A (en) | 1974-11-27 |
Family
ID=5786315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4976971A Expired GB1375013A (en) | 1970-10-28 | 1971-10-26 |
Country Status (5)
| Country | Link |
|---|---|
| CH (1) | CH527540A (en) |
| DE (1) | DE2052772A1 (en) |
| FR (1) | FR2113189A5 (en) |
| GB (1) | GB1375013A (en) |
| SE (1) | SE383470B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2177240A (en) * | 1985-06-24 | 1987-01-14 | Vernitron Corp | Synchro power amplifier and control circuit for automatically tuning an inductive load |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3130233B1 (en) | 2021-12-09 | 2023-11-03 | Psa Automobiles Sa | Method and device for controlling an adaptive speed regulation system of a vehicle |
-
1970
- 1970-10-28 DE DE19702052772 patent/DE2052772A1/en active Pending
-
1971
- 1971-08-23 CH CH1235071A patent/CH527540A/en not_active IP Right Cessation
- 1971-10-25 FR FR7138213A patent/FR2113189A5/fr not_active Expired
- 1971-10-26 GB GB4976971A patent/GB1375013A/en not_active Expired
- 1971-10-26 SE SE1357771A patent/SE383470B/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2177240A (en) * | 1985-06-24 | 1987-01-14 | Vernitron Corp | Synchro power amplifier and control circuit for automatically tuning an inductive load |
| GB2177240B (en) * | 1985-06-24 | 1989-07-12 | Vernitron Corp | Synchro power amplifier and control circuit for automatically tuning an inductive load |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2052772A1 (en) | 1972-05-04 |
| FR2113189A5 (en) | 1972-06-23 |
| SE383470B (en) | 1976-03-08 |
| CH527540A (en) | 1972-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB702892A (en) | Electric railway system | |
| GB319313A (en) | The regulation of the electric potential of long lines | |
| GB1456575A (en) | Reactive power compensator for electrical power transmission systems | |
| GB1375013A (en) | ||
| US1851692A (en) | Electric regulator | |
| GB1509598A (en) | Voltage regulating circuits | |
| GB1484938A (en) | Power factor correcting means | |
| US2429724A (en) | Means for regulating a machine voltage | |
| US1755060A (en) | Automatic voltage-regulating means | |
| US2020796A (en) | Regulation of voltage | |
| US2136248A (en) | Electrical regulation | |
| US2442960A (en) | Regulated rectifying system | |
| US1874240A (en) | Electrical circuit regulator | |
| US3344341A (en) | Regulating transformer system | |
| US3140439A (en) | Magnetic amplifier controlled voltage regulating circuit | |
| US2086421A (en) | Electric transmission system | |
| GB469414A (en) | Improvements relating to apparatus for automatically controlling the current in an alternating current circuit | |
| US1849820A (en) | Combination electrical regulator | |
| US2683857A (en) | Magnetic amplifier of the balanced push-pull type | |
| GB1125439A (en) | Voltage regulated polyphase transformer systems | |
| GB320897A (en) | Improvements in or relating to the automatic regulation of the power factor in electric alternating current systems | |
| GB1126518A (en) | An arrangement for the excitation of synchronous machines | |
| DE685849C (en) | Arrangement for the operation of single- or multi-phase converting devices working with controlled discharge sections, in particular grid-controlled vapor or gas discharge sections | |
| GB436148A (en) | Improvements in and relating to electric supply systems | |
| SU860209A1 (en) | Device for regulating reactive power compensation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |