GB881384A - A current rectifier or inverter installation including means for providing protection against overloads - Google Patents
A current rectifier or inverter installation including means for providing protection against overloadsInfo
- Publication number
- GB881384A GB881384A GB1612/58A GB161258A GB881384A GB 881384 A GB881384 A GB 881384A GB 1612/58 A GB1612/58 A GB 1612/58A GB 161258 A GB161258 A GB 161258A GB 881384 A GB881384 A GB 881384A
- Authority
- GB
- United Kingdom
- Prior art keywords
- current
- elements
- rectifier
- bridge
- contacts
- 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 abstract 2
- 239000004020 conductor Substances 0.000 abstract 5
- 239000003638 chemical reducing agent Substances 0.000 abstract 2
- 230000000694 effects Effects 0.000 abstract 2
- 238000004804 winding Methods 0.000 abstract 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 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
- 230000001681 protective effect Effects 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
- H02H7/1257—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 responsive to short circuit or wrong polarity in output circuit
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
- Protection Of Static Devices (AREA)
Abstract
881,384. Protective cut-out arrangements. SIEMENS - SCIIUCKERTWERKE A.G. Jan. 16, 1958 [Jan. 25, 1957], No. 1612/58. Class 38 (5). In a rectifier or inverter installation having germanium or silicon rectifier or transistor elements, protection is provided by switching means arranged to bridge elements or the conductors supplying them or to place in circuit one or more devices which reduce the current through the elements. In Fig. 3, rectifier elements 3a . . . 3c are protected by tripping means 6 under the control of over-current devices 8a ... 8c and reverse current devices 9a. . . 9c connected in the A.C. supply conductors. In addition, an over-current device 10 and a reverse-current device 11 may be connected in the D.C. supply circuit to the load 4. The switching or tripping means 6 operates contacts 7 to individually short-circuit the elements 3a . . . 3c, to bridge the supply conductors, or to collectively short-circuit the elements and bridge the supply conductors as shown. The tripping means 6 may also actuate contacts 6a to effect the tripping or release of a main switch 12. Figs. 5 to 8 (not shown), illustrate arrangements having similar switching means, but these means are controlled by saturable transformers responsive to overcurrents or reverse-currents. Fig. 9 shows an arrangement in which bridge-connected rectifier elements 3a...3f are protected by a " current reducer" such as those of Specifications 748,532 and 769,752 and comprising a switching member 35 and a current-limiting fusiblemember 36 or a positive temperature coefficient resistor. In Fig. 10 (not shown), such a current reducer is connected in each supply conductor. In Fig. 11 series-connected rectifier elements 38... 43 are short-circuited by contacts 7 of the tripping means 6 on the operation of differential relays 44. . . 46. Each relay is polarized and has two windings each connected across one of the associated pair of rectifier elements. When an element fails, the current in one of the relay windings becomes predominant so that the relay closes its contacts to effect operation of the means 6.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE881384X | 1957-01-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB881384A true GB881384A (en) | 1961-11-01 |
Family
ID=6829557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1612/58A Expired GB881384A (en) | 1957-01-25 | 1958-01-16 | A current rectifier or inverter installation including means for providing protection against overloads |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB881384A (en) |
-
1958
- 1958-01-16 GB GB1612/58A patent/GB881384A/en not_active Expired
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