GB546836A - Improvements in and relating to electric valve control circuits - Google Patents
Improvements in and relating to electric valve control circuitsInfo
- Publication number
- GB546836A GB546836A GB4283/41A GB428341A GB546836A GB 546836 A GB546836 A GB 546836A GB 4283/41 A GB4283/41 A GB 4283/41A GB 428341 A GB428341 A GB 428341A GB 546836 A GB546836 A GB 546836A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- immersion
- march
- transformer
- network
- 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
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/02—Circuits specially adapted for the generation of grid-control or igniter-control voltages for discharge tubes incorporated in static converters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Generation Of Surge Voltage And Current (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
546,836. Converting. BRITISH THOMSON-HOUSTON CO., Ltd. March 31, 1941, No. 4283. Convention date, March 30, 1940. [Class 38 (ii)] [Also in Group XL] In a converting arrangement in which power is transmitted between an A.C. network 2 and a D.C. network 1 through a transformer 3 and a group of mercury arc discharge devices 7... 12 of the type in which the moment of ignition is adjustably controlled by current supplied to immersion-ignitor electrodes 16, auxiliary electrodes 17 are provided in the ignition circuits to relieve the electrodes 16 of current as soon as a cathodic spot is formed on the mercury pool. The electrodes 16, 17 are both supplied from a source of peaky wave form which comprises transformers 18, 21, 22 of which the two last-mentioned have open-delta secondaries connected so as to inject third harmonic voltages into the star points of the secondaries of the transformer 18. The negative half waves of the control currents are withheld from the immersion-ignitor electrodes 16 by valves 30, 36. Regulation is effected by a phase-shifter 40 in the primary circuits of the transformers 18, 21, 22. Specification 546,439 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US326925A US2248625A (en) | 1940-03-30 | 1940-03-30 | Electric valve control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB546836A true GB546836A (en) | 1942-07-31 |
Family
ID=23274347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4283/41A Expired GB546836A (en) | 1940-03-30 | 1941-03-31 | Improvements in and relating to electric valve control circuits |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2248625A (en) |
| GB (1) | GB546836A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2431903A (en) * | 1940-12-05 | 1947-12-02 | Gen Electric | Electric control circuits |
| BE500823A (en) * | 1950-01-26 | 1900-01-01 |
-
1940
- 1940-03-30 US US326925A patent/US2248625A/en not_active Expired - Lifetime
-
1941
- 1941-03-31 GB GB4283/41A patent/GB546836A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2248625A (en) | 1941-07-08 |
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