GB852137A - Improvements in or relating to rectifier installations - Google Patents
Improvements in or relating to rectifier installationsInfo
- Publication number
- GB852137A GB852137A GB2376357A GB2376357A GB852137A GB 852137 A GB852137 A GB 852137A GB 2376357 A GB2376357 A GB 2376357A GB 2376357 A GB2376357 A GB 2376357A GB 852137 A GB852137 A GB 852137A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- conductor
- current
- winding
- rectifier
- 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
- 238000009434 installation Methods 0.000 title 1
- 239000004020 conductor Substances 0.000 abstract 5
- 238000004804 winding Methods 0.000 abstract 5
- 230000001681 protective effect Effects 0.000 abstract 3
- 230000000630 rising effect Effects 0.000 abstract 2
- 239000004065 semiconductor Substances 0.000 abstract 2
- 239000003990 capacitor Substances 0.000 abstract 1
- 229910052732 germanium Inorganic materials 0.000 abstract 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 abstract 1
- 230000005389 magnetism Effects 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/125—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for rectifiers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
- Protection Of Static Devices (AREA)
Abstract
852,137. Protective cut-out systems. SIEMENS-SCHUCKERTWERKE A.G. July 26, 1957 [July 26, 1956], No. 23763/57. Class 38 (5). [Also in Group XXXV] A rectifying arrangement with a protective device associated with each rectifier which renders inoperative all rectifier elements when a reverse fault current flow incorporates magnetic cores so disposed that upon flow of reverse current even of magnitude small compared with that of the forward current when the arrangement operates incorrectly, the magnetic state of the core through which the reverse current flows changes in a way which can be subsequently detected. Each rectifier or phase group of rectifiers, which may be mechanically or electromagnetically operated switches such as 1, gas discharge devices or germanium, silicon or other semi-conductor devices, has in series a conductor 4 passing through a saturable core 5 which is normally saturated by the forward current. The core has a magnetic characteristic such that the magnetism reverses when a small reverse current flows, and develops voltage in winding 6 to operate a device 7 which bridges switch 1 and other rectifying switches or disconnects the supply. The short-circuited path includes conductor 4 in core 5, so that its magnetic state is not disturbed if forward current starts before the switch opens. To find where the reverse current has passed the state of each core 5 may be tested by winding 8, or this winding may initiate a continuous signal at the time of reversal. To prevent operation of the protective device upon passage of the pulses of storage current in semi-conductor rectifiers, a relatively thin conductor 12 bridges conductor 10 in core 11, Fig. 2. To steeply rising storage current, conductor 12 exhibits impedance lower than that of path 10, but to the more slowly rising fault current, the impedance ratio is reversed. Alternatively core 11 may carry a winding connected to a capacitor which acts as a shortcircuited secondary winding when steep storage current flows.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES49722A DE1041606B (en) | 1956-07-26 | 1956-07-26 | Rectifier system with reverse current protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB852137A true GB852137A (en) | 1960-10-26 |
Family
ID=7487431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2376357A Expired GB852137A (en) | 1956-07-26 | 1957-07-26 | Improvements in or relating to rectifier installations |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH357108A (en) |
| DE (1) | DE1041606B (en) |
| FR (1) | FR1184633A (en) |
| GB (1) | GB852137A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2162670A (en) * | 1983-08-27 | 1986-02-05 | Hunslet | Monitoring system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1121207B (en) * | 1960-06-03 | 1962-01-04 | Siemens Ag | Rectifier system with several branches connected in parallel with rectifier cells |
| CA924803A (en) * | 1969-05-19 | 1973-04-17 | Rca Corporation | Protection circuit |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE715819C (en) * | 1931-07-04 | 1942-01-07 | Siemens Ag | Backfire protection for power converters, especially mercury vapor rectifiers |
| DE711311C (en) * | 1939-06-07 | 1941-09-29 | Siemens Schuckertwerke Akt Ges | Switching arrangement for alternating current interruption devices, in particular for periodic switching for conversion purposes |
| CH234245A (en) * | 1943-05-15 | 1944-09-15 | Bbc Brown Boveri & Cie | Device to prevent the excitation from breaking off in single and multi-anode valves. |
-
1956
- 1956-07-26 DE DES49722A patent/DE1041606B/en active Pending
-
1957
- 1957-07-22 CH CH357108D patent/CH357108A/en unknown
- 1957-07-25 FR FR1184633D patent/FR1184633A/en not_active Expired
- 1957-07-26 GB GB2376357A patent/GB852137A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2162670A (en) * | 1983-08-27 | 1986-02-05 | Hunslet | Monitoring system |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1184633A (en) | 1959-07-23 |
| DE1041606B (en) | 1958-10-23 |
| CH357108A (en) | 1961-09-30 |
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