GB375804A - Improvements in a reverse current relay arrangement for use in electric rectifier installations - Google Patents
Improvements in a reverse current relay arrangement for use in electric rectifier installationsInfo
- Publication number
- GB375804A GB375804A GB911031A GB911031A GB375804A GB 375804 A GB375804 A GB 375804A GB 911031 A GB911031 A GB 911031A GB 911031 A GB911031 A GB 911031A GB 375804 A GB375804 A GB 375804A
- Authority
- GB
- United Kingdom
- Prior art keywords
- current
- winding
- relay
- shunt
- circuit
- 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
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/18—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to reversal of direct current
-
- 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
- H02H7/1209—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 converters using only discharge tubes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
375,804. Protective cut-out arrangements. LUTZ, F., 32, Sulgenauweg, Berne, Switzerland. March 25, 1931, No. 9110. [Class 38 (v).] A reverse - current relay arrangement for use with a rectifier has the relay winding in series with a valve connected across a shunt or other portion of the rectifier circuit so that on reversal of current in the rectifier due to back arcing current flows in the relay winding to produce an indicating or switching operation. As shown in Fig. 1, the relay winding B with current in the normal direction in the rectifier circuit, consisting of the anode A, transformer winding T, and shunt S, is fed only by a limited current through a resistance R. On reversal of current in the rectifier circuit, however, a substantial current is shunted to the winding B through the valve V, which current may be utilized to operate an indicator or circuit-breaker. The arrangement may be modified for polyphase circuits, Fig. 3 (not shown), in which the three valve elements may be combined. An alternative arrangement shown in Fig. 2 has the shunt S in the grid circuit of the valve W, the relay winding B being included in the anode circuit. Instead of a shunt, a choking coil, impedance or a tapped portion of the transformer winding, Fig. 4 (not shown), may be utilized for providing the current in the relay arrangement.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE379543D BE379543A (en) | 1931-03-25 | ||
NL33096D NL33096C (en) | 1931-03-25 | ||
DEL75542D DE580770C (en) | 1929-06-27 | 1929-06-27 | Reverse current relay device |
GB911031A GB375804A (en) | 1931-03-25 | 1931-03-25 | Improvements in a reverse current relay arrangement for use in electric rectifier installations |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB911031A GB375804A (en) | 1931-03-25 | 1931-03-25 | Improvements in a reverse current relay arrangement for use in electric rectifier installations |
Publications (1)
Publication Number | Publication Date |
---|---|
GB375804A true GB375804A (en) | 1932-06-27 |
Family
ID=9865546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB911031A Expired GB375804A (en) | 1929-06-27 | 1931-03-25 | Improvements in a reverse current relay arrangement for use in electric rectifier installations |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE379543A (en) |
GB (1) | GB375804A (en) |
NL (1) | NL33096C (en) |
-
0
- BE BE379543D patent/BE379543A/xx unknown
- NL NL33096D patent/NL33096C/xx active
-
1931
- 1931-03-25 GB GB911031A patent/GB375804A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL33096C (en) | |
BE379543A (en) |
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