GB256602A - Improvements in and relating to remote control switching systems - Google Patents
Improvements in and relating to remote control switching systemsInfo
- Publication number
- GB256602A GB256602A GB18597/26A GB1859726A GB256602A GB 256602 A GB256602 A GB 256602A GB 18597/26 A GB18597/26 A GB 18597/26A GB 1859726 A GB1859726 A GB 1859726A GB 256602 A GB256602 A GB 256602A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- circuit
- closed
- relay
- impulse
- 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
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Abstract
256,602. British Thomson-Houston Co., Ltd., (Assignees of Bird, L. F.). Aug. 5,1925, [Convention date]. Distant control systems.-An electric circuit is closed or opened from a remote point by impulses of short or long duration respectively. As shown in Fig. 4, a circuit 1 is closed by a switch 2 when the armature 8 is attracted by a relay 6 upon the receipt of a short impulse. The armature 8 enters a recess 4 and allows the member 3 to fall and close the switch 2. Upon cessation of the impulse the armature 8 falls back, under its own weight or the influence of a spring to the right hand side of the recces 4 as shown in Fig. 1 and the circuit is maintained closed. In the " open " and " closed " positions of the switch, an extension 9 of the armature 8 closes contacts 10, 12 to charge a condenser 13 and supply negative bias 14 to the grid of a discharge tube 14 to prevent a current flow through the tube 14 and a relav 7. When it is desired to open the circuit 1, an impulse of relatively long duration is transmitted and the armature 8 is attracted to permit the completion of a discharge circuit for the condenser 13 through the contacts 10, 15 and a resistance 16, and the production of a gradually increasing current through the tube 14 and relay 7. The contacts 10, 15 are maintained closed for a time sufficient to allow the current to reach a predetermined value which causes the relav 7 to attract the armature 18 and raise the member 3. To open the circuit 1 upon the cessation of the long impulse the armature 8 falls back beyond the recess 4 as shown in Fig. 4 since the relay 7 is maintained energized until the contacts 10, 12 are closed to supply negative bias to the grid of the tube 14. In this position the armature 8 engages an extension 5 of the member 3 to hold open the circuit 1. In a modification, Fig. 5, the operation of the relay 7 is controlled by a dashpot 19. The arm 20, controlled by the relay 7, is actuated only upon the receipt of a long impulse. Specification 255,845 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US256602XA | 1925-08-05 | 1925-08-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB256602A true GB256602A (en) | 1927-08-25 |
Family
ID=21827346
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB18597/26A Expired GB256602A (en) | 1925-08-05 | 1926-07-26 | Improvements in and relating to remote control switching systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB256602A (en) |
-
1926
- 1926-07-26 GB GB18597/26A patent/GB256602A/en not_active Expired
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