GB378062A - Improvements in and relating to the transmission of electric power - Google Patents
Improvements in and relating to the transmission of electric powerInfo
- Publication number
- GB378062A GB378062A GB12299/31A GB1229931A GB378062A GB 378062 A GB378062 A GB 378062A GB 12299/31 A GB12299/31 A GB 12299/31A GB 1229931 A GB1229931 A GB 1229931A GB 378062 A GB378062 A GB 378062A
- Authority
- GB
- United Kingdom
- Prior art keywords
- condenser
- transformer
- current
- grid
- valves
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/445—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F6/00—Air-humidification, e.g. cooling by humidification
- F24F6/12—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Dispersion Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ac-Ac Conversion (AREA)
Abstract
378,062. Converting. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Bedford, B. D. ; 329, Germania Avenue, Schenectady, New York, U.S.A.) April 25, 1931, No. 12299. Convention date, April 25, 1930. [Class 38 (ii).] In an arrangement for supplying an A.C. load circuit 11 with current derived from a D.C. source 10 through an inductive winding 12 and a pair of metal vapour discharge devices 13, 14 associated with means such as a condenser 21 for eflecting commutation of current therein, provision is made for subjecting the grid of each of the valves 13, 14 to a transient of negative potential immediately upon interruption of current in the corresponding valve in order to effect rapid deionization thereof. In the arrangement shown, the grid circuits comprise a transformer 25 and a condenser 28 across which is impressed an alternating potential derived from a transformer 29, of sufficient magnitude to render the valves conducting in turn and thus determine frequency of the inverter. The primary of the transformer 25 is connected across a resistance 22 connected in series with a condenser 23 across the terminals of the winding 12. The arrangement is such that discharge of the condenser 23 consequent on starting of current in either of the valves causes such a potential to be developed in the secondary of transformer 25 as to apply a negative voltage impulse to the grid of the other valve in which current has been interrupted by the action of the commutating condenser 21. Modifications are described with reference to arrangements in which the grid circuits are in self-exciting connection, the auxiliary source feeding transformer 29 and condenser 28 being dispensed with. In one such modification, Fig. 4 (not shown), the condenser 23 also is dispensed with, the transient of negative potential whereby the valves are deionized being produced by reversal of current in the primary of the grid transformer on discharge of the commutating condenser 21.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US378062XA | 1906-05-23 | 1906-05-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB378062A true GB378062A (en) | 1932-07-25 |
Family
ID=21896446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12299/31A Expired GB378062A (en) | 1930-04-25 | 1931-04-25 | Improvements in and relating to the transmission of electric power |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR378062A (en) |
GB (1) | GB378062A (en) |
-
1907
- 1907-05-23 FR FR378062D patent/FR378062A/en not_active Expired
-
1931
- 1931-04-25 GB GB12299/31A patent/GB378062A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR378062A (en) | 1907-09-23 |
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