GB433402A - Improvements in protective circuits for gas or vapour filled electric discharge vessels provided with a plurality of discharge gaps - Google Patents
Improvements in protective circuits for gas or vapour filled electric discharge vessels provided with a plurality of discharge gapsInfo
- Publication number
- GB433402A GB433402A GB21517/34A GB2151734A GB433402A GB 433402 A GB433402 A GB 433402A GB 21517/34 A GB21517/34 A GB 21517/34A GB 2151734 A GB2151734 A GB 2151734A GB 433402 A GB433402 A GB 433402A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- relay
- fault
- resistances
- gas
- 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
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
- H02H7/127—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 having auxiliary control electrode to which blocking control voltages or currents are applied in case of emergency
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Generation Of Surge Voltage And Current (AREA)
Abstract
433,402. Converting. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. July 23, 1934, No. 21517. Convention date, Oct. 20, 1933. [Class 38 (ii)] In an arrangement comprising a vapour discharge device having grids supplied from a distributer 6 which periodically raises the grid potential from a negative value momentarily to a positive value to effect ignition, an overriding negative bias is applied in the event of fault by the resistances 11 being short circuited. These are bridged by a multi-anode valve 12 in series with a relay 17 which operates in response to fault conditions to complete the short circuit across the resistances through the valve 12. The valve 12 may be of the high vacuum, gas or vapour filled types or may be formed by static contact rectifiers. The winding of the relay 17 may be energized from a current transformer. In a modification the valve 12 is grid controlled, the relay 17 being in the grid circuit and operating in the event of fault to remove a negative bias so that the valve becomes conductive to short circuit the resistances. In this modification the relay 17 may be replaced by an auxiliary valve, normally conducting but which becomes nonconducting on the occurrence of a fault.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE433402X | 1933-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB433402A true GB433402A (en) | 1935-08-14 |
Family
ID=6499513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21517/34A Expired GB433402A (en) | 1933-10-20 | 1934-07-23 | Improvements in protective circuits for gas or vapour filled electric discharge vessels provided with a plurality of discharge gaps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB433402A (en) |
-
1934
- 1934-07-23 GB GB21517/34A patent/GB433402A/en not_active Expired
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