BE743637A - - Google Patents
Info
- Publication number
- BE743637A BE743637A BE743637DA BE743637A BE 743637 A BE743637 A BE 743637A BE 743637D A BE743637D A BE 743637DA BE 743637 A BE743637 A BE 743637A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
- Coils Or Transformers For Communication (AREA)
- Transformers For Measuring Instruments (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US78786368A | 1968-12-30 | 1968-12-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE743637A true BE743637A (es) | 1970-05-28 |
Family
ID=25142750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE743637D BE743637A (es) | 1968-12-30 | 1969-12-23 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3509507A (es) |
BE (1) | BE743637A (es) |
ES (1) | ES374678A1 (es) |
FR (1) | FR2027376B1 (es) |
GB (1) | GB1283238A (es) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3624499A (en) * | 1970-09-29 | 1971-11-30 | Westinghouse Electric Corp | Electrical transformer with zero sequence voltage indicator |
US4176333A (en) * | 1978-06-12 | 1979-11-27 | Westinghouse Electric Corp. | Magnetic core for single phase electrical inductive apparatus |
US4493016A (en) * | 1982-10-07 | 1985-01-08 | Westinghouse Electric Corp. | Rectifier transformer |
US5959523A (en) * | 1996-10-15 | 1999-09-28 | Abb Power T&D Company Inc. | Magnetic core structure |
SE525698C2 (sv) * | 2003-06-27 | 2005-04-05 | Forskarpatent I Syd Ab | Transformator med skydd mot likströmsmagnetisering förorsakad av nollföljdsström |
SE527406C2 (sv) * | 2004-05-10 | 2006-02-28 | Forskarpatent I Syd Ab | Förfarande och DC-avledare för skydd av kraftsystem mot geomagnetiskt inducerade strömmar |
US7378754B2 (en) * | 2006-05-09 | 2008-05-27 | Mte Corporation | Three-phase harmonic reduction filter for bidirectional power converters |
TWI320935B (en) * | 2006-11-22 | 2010-02-21 | Delta Electronics Inc | Structure of magnetic device and magnetic core assembly capable of reducing winding loss |
CN101192462B (zh) * | 2006-11-28 | 2011-11-02 | 台达电子工业股份有限公司 | 降低铜损的磁性组件结构及其磁芯组件 |
US7764041B2 (en) * | 2007-01-22 | 2010-07-27 | Johnson Controls Technology Company | System and method to extend synchronous operation of an active converter in a variable speed drive |
GB2493772B (en) * | 2011-08-18 | 2014-01-01 | Gridon Ltd | Fault current limiter |
CN215342259U (zh) * | 2021-07-27 | 2021-12-28 | 吴江变压器有限公司 | 一种带有二次绕组的接地变压器 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191116907A (en) * | 1910-11-29 | 1912-02-22 | Siemens Brothers Dynamo Works | Improvements in or relating to Earthing Devices for Electrical Circuits. |
FR483419A (fr) * | 1915-11-22 | 1917-07-04 | Brown | Transformateur polyphasé ou bobine de réaction polyphasée avec point neutre à la terre |
FR548153A (es) * | 1921-02-17 | 1923-01-09 | ||
FR1499627A (fr) * | 1966-11-05 | 1967-10-27 | Nautchno Izsledovatelski Pk I | Transformateur monophasé à quatre noyaux pour le réglage de la tension |
-
1968
- 1968-12-30 US US787863A patent/US3509507A/en not_active Expired - Lifetime
-
1969
- 1969-12-11 GB GB60449/69A patent/GB1283238A/en not_active Expired
- 1969-12-18 ES ES374678A patent/ES374678A1/es not_active Expired
- 1969-12-23 BE BE743637D patent/BE743637A/xx not_active IP Right Cessation
- 1969-12-30 FR FR6945425A patent/FR2027376B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2027376B1 (es) | 1973-11-16 |
US3509507A (en) | 1970-04-28 |
GB1283238A (en) | 1972-07-26 |
FR2027376A1 (es) | 1970-09-25 |
ES374678A1 (es) | 1972-04-01 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: WESTINGHOUSE ELECTRIC CORP. Effective date: 19871231 |