SE9702335D0 - Current limiting device and protection against faults in a current - Google Patents
Current limiting device and protection against faults in a currentInfo
- Publication number
- SE9702335D0 SE9702335D0 SE9702335A SE9702335A SE9702335D0 SE 9702335 D0 SE9702335 D0 SE 9702335D0 SE 9702335 A SE9702335 A SE 9702335A SE 9702335 A SE9702335 A SE 9702335A SE 9702335 D0 SE9702335 D0 SE 9702335D0
- Authority
- SE
- Sweden
- Prior art keywords
- current
- load
- circuit
- protection against
- fault
- Prior art date
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
A device for current limitation and protection against faults in the load current fed to an electrical load, in the form of an electrical apparatus or installation, a fault current limiter. The fault current limiter is electrically connected in series with the load to be protected in a main circuit for power supply of the load. The current limiting element is electrically connected to a circuit for current injection. The circuit for current injection comprises a capacitor connected in series with a switch. A control unit with sensors for monitoring the load current in the main circuit and control means are arranged to control and operate the switch in the circuit for current injection based on changes in the properties of the load current in the main circuit, such that upon detection of a fault the capacitor is discharged through the current limiting element.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9702335A SE9702335D0 (en) | 1997-06-18 | 1997-06-18 | Current limiting device and protection against faults in a current |
PCT/SE1998/001135 WO1998058435A1 (en) | 1997-06-18 | 1998-06-12 | A device for current limitation and protection against faults in a current |
EP98928787A EP0990294A1 (en) | 1997-06-18 | 1998-06-12 | A device for current limitation and protection against faults in a current |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9702335A SE9702335D0 (en) | 1997-06-18 | 1997-06-18 | Current limiting device and protection against faults in a current |
Publications (1)
Publication Number | Publication Date |
---|---|
SE9702335D0 true SE9702335D0 (en) | 1997-06-18 |
Family
ID=20407427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9702335A SE9702335D0 (en) | 1997-06-18 | 1997-06-18 | Current limiting device and protection against faults in a current |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0990294A1 (en) |
SE (1) | SE9702335D0 (en) |
WO (1) | WO1998058435A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7388303B2 (en) * | 2003-12-01 | 2008-06-17 | Conocophillips Company | Stand-alone electrical system for large motor loads |
EP2521228B1 (en) * | 2011-05-05 | 2014-01-01 | ABB Research Ltd. | Device and method for quick closing of an electric circuit and a use of the device |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE136731C1 (en) * | ||||
GB1240035A (en) * | 1968-01-20 | 1971-07-21 | Fuji Electric Co Ltd | Electric circuit breaker |
SE337860B (en) * | 1969-12-16 | 1971-08-23 | Asea Ab | |
US5440441A (en) * | 1984-10-24 | 1995-08-08 | Ahuja; Om | Apparatus for protecting, monitoring, and managing an AC/DC electrical line or a telecommunication line using a microprocessor |
DE4013731C2 (en) * | 1990-04-28 | 1995-07-13 | Sel Alcatel Ag | Circuit arrangement for limiting the inrush current |
AU3394697A (en) * | 1996-06-18 | 1998-01-07 | Littlefuse, Inc. | Electrical apparatus with a variable circuit protection device |
-
1997
- 1997-06-18 SE SE9702335A patent/SE9702335D0/en unknown
-
1998
- 1998-06-12 WO PCT/SE1998/001135 patent/WO1998058435A1/en not_active Application Discontinuation
- 1998-06-12 EP EP98928787A patent/EP0990294A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP0990294A1 (en) | 2000-04-05 |
WO1998058435A1 (en) | 1998-12-23 |
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