GB516517A - Arrangement for commutating current in rectifiers of the space discharge type - Google Patents
Arrangement for commutating current in rectifiers of the space discharge typeInfo
- Publication number
- GB516517A GB516517A GB10017/38A GB1001738A GB516517A GB 516517 A GB516517 A GB 516517A GB 10017/38 A GB10017/38 A GB 10017/38A GB 1001738 A GB1001738 A GB 1001738A GB 516517 A GB516517 A GB 516517A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anode
- voltage
- star point
- discharge type
- anodes
- 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
- 230000007704 transition Effects 0.000 abstract 2
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
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
- H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
- H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
- H02M7/06—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Lasers (AREA)
Abstract
516,517. Converting. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. April 1, 1938, No. 10017. Convention date, April 2, 1937. [Class 38 (ii)] The transition anode described in Specification 407,589 is employed to obtain a reduction of the D.C. voltage of a space-discharge type rectifier in relation to the A.C. voltage without any substantial phase displacement on the'A.C. side. In the form shown in Fig. 1 at some point before the end of the half cycle determined by grid control of the anode 12, 13, 14 the arc is transferred .by means of the transition anode 13 from one of the main anodes 12 to the star point anode 13 which conducts the current until the next main anode 12 commences to conduct. By this means a wave form of primary current somewhat as shown in Fig. 2 can be obtained, this giving a high power factor on the A.C. side at low loads. In a modification the arc is transferred to low voltage anodes instead of to a star point anode. In a polyphase arrangement having a star point anode the control is such that alternate main anodes do not conduct.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE516517X | 1937-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB516517A true GB516517A (en) | 1940-01-04 |
Family
ID=20311099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10017/38A Expired GB516517A (en) | 1937-04-02 | 1938-04-01 | Arrangement for commutating current in rectifiers of the space discharge type |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB516517A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8750454B2 (en) | 2010-02-25 | 2014-06-10 | Rapiscan Systems, Inc. | High-energy X-ray-spectroscopy-based inspection system and methods to determine the atomic number of materials |
| US9218933B2 (en) | 2011-06-09 | 2015-12-22 | Rapidscan Systems, Inc. | Low-dose radiographic imaging system |
| US9224573B2 (en) | 2011-06-09 | 2015-12-29 | Rapiscan Systems, Inc. | System and method for X-ray source weight reduction |
| US9223049B2 (en) | 2002-07-23 | 2015-12-29 | Rapiscan Systems, Inc. | Cargo scanning system with boom structure |
| US9557427B2 (en) | 2014-01-08 | 2017-01-31 | Rapiscan Systems, Inc. | Thin gap chamber neutron detectors |
| US9625606B2 (en) | 2009-05-16 | 2017-04-18 | Rapiscan Systems, Inc. | Systems and methods for high-Z threat alarm resolution |
| US12385854B2 (en) | 2022-07-26 | 2025-08-12 | Rapiscan Holdings, Inc. | Methods and systems for performing on-the-fly automatic calibration adjustments of X-ray inspection systems |
-
1938
- 1938-04-01 GB GB10017/38A patent/GB516517A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9223049B2 (en) | 2002-07-23 | 2015-12-29 | Rapiscan Systems, Inc. | Cargo scanning system with boom structure |
| US9625606B2 (en) | 2009-05-16 | 2017-04-18 | Rapiscan Systems, Inc. | Systems and methods for high-Z threat alarm resolution |
| US8750454B2 (en) | 2010-02-25 | 2014-06-10 | Rapiscan Systems, Inc. | High-energy X-ray-spectroscopy-based inspection system and methods to determine the atomic number of materials |
| US9218933B2 (en) | 2011-06-09 | 2015-12-22 | Rapidscan Systems, Inc. | Low-dose radiographic imaging system |
| US9224573B2 (en) | 2011-06-09 | 2015-12-29 | Rapiscan Systems, Inc. | System and method for X-ray source weight reduction |
| US9557427B2 (en) | 2014-01-08 | 2017-01-31 | Rapiscan Systems, Inc. | Thin gap chamber neutron detectors |
| US12385854B2 (en) | 2022-07-26 | 2025-08-12 | Rapiscan Holdings, Inc. | Methods and systems for performing on-the-fly automatic calibration adjustments of X-ray inspection systems |
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