GB1186453A - Improvements in or relating to Electric Circuit Interrupting Devices - Google Patents
Improvements in or relating to Electric Circuit Interrupting DevicesInfo
- Publication number
- GB1186453A GB1186453A GB50182/67A GB5018267A GB1186453A GB 1186453 A GB1186453 A GB 1186453A GB 50182/67 A GB50182/67 A GB 50182/67A GB 5018267 A GB5018267 A GB 5018267A GB 1186453 A GB1186453 A GB 1186453A
- Authority
- GB
- United Kingdom
- Prior art keywords
- discharge
- pulse
- anode
- grid
- load
- 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
- H02H7/20—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 electronic equipment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/14—Magnetic means for controlling the discharge
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Lasers (AREA)
Abstract
1,186,453. Protective arrangements. M-O VALVE CO. Ltd., J. GOWAR, and K. G. COOK. 17 Oct., 1968 [3 Nov., 1967], No. 50182/67. Heading H2K. [Also in Division H1] A load 31 is protected from drawing excess current by a device 30 comprising anode 2, cathode 4, grid 3 and baffle 5 which normally permits the passage of an anode/cathode discharge but which obstructs the discharge when a magnetic field produced by coil 27 is present. Anode 2 is connected in series with load 31, a pulse generator 32 and with the power supply. Since grid 3 is normally held negative with respect to the anode the discharge in device 30 may only be started by applying a positive pulse across transformer 43. A pulse is produced from pulse generator 32 when the load current exceeds a predetermined value; this pulse fires a thyratron 35 causing capacitor 39 to discharge through coil 27 which produces a pulse of magnetic field, e.g. having a duration of 60 microseconds and a peak value of 1 kilogauss, sufficient to extinguish the discharge in device 30. The discharge remains extinguished until a positive pulse is once again applied to grid 3.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB50182/67A GB1186453A (en) | 1967-11-03 | 1967-11-03 | Improvements in or relating to Electric Circuit Interrupting Devices |
US770520A US3519882A (en) | 1967-11-03 | 1968-10-25 | Gas discharge tube with magnetic means for extinguishing the discharge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB50182/67A GB1186453A (en) | 1967-11-03 | 1967-11-03 | Improvements in or relating to Electric Circuit Interrupting Devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1186453A true GB1186453A (en) | 1970-04-02 |
Family
ID=10454977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB50182/67A Expired GB1186453A (en) | 1967-11-03 | 1967-11-03 | Improvements in or relating to Electric Circuit Interrupting Devices |
Country Status (2)
Country | Link |
---|---|
US (1) | US3519882A (en) |
GB (1) | GB1186453A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2189342A (en) * | 1986-04-17 | 1987-10-21 | Us Energy | Quenching discharges by using magnetic fields |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4088929A (en) * | 1975-07-26 | 1978-05-09 | English Electric Valve Company Limited | Electric circuit interrupting devices |
GB2065364B (en) * | 1979-12-11 | 1983-09-01 | English Electric Valve Co Ltd | Thyratrons |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2217186A (en) * | 1925-03-05 | 1940-10-08 | Raytheon Mfg Co | High current space discharge device |
US1962158A (en) * | 1930-08-25 | 1934-06-12 | Raytheon Mfg Co | Gaseous discharge device |
US2497911A (en) * | 1945-08-03 | 1950-02-21 | Gerard J Reilly | Hydrogen thyratron |
CH249501A (en) * | 1946-04-04 | 1947-06-30 | Ag Sirco | Mercury vapor discharge vessel. |
US2543227A (en) * | 1948-10-15 | 1951-02-27 | Western Union Telegraph Co | Concentrated arc lamp |
US2951960A (en) * | 1959-03-24 | 1960-09-06 | Tung Sol Electric Inc | Gaseous discharge device |
CH446475A (en) * | 1965-04-15 | 1967-11-15 | Asea Ab | Electrical switchgear |
-
1967
- 1967-11-03 GB GB50182/67A patent/GB1186453A/en not_active Expired
-
1968
- 1968-10-25 US US770520A patent/US3519882A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2189342A (en) * | 1986-04-17 | 1987-10-21 | Us Energy | Quenching discharges by using magnetic fields |
GB2189342B (en) * | 1986-04-17 | 1990-08-29 | Us Energy | Plasma shutter |
Also Published As
Publication number | Publication date |
---|---|
US3519882A (en) | 1970-07-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
PLNP | Patent lapsed through nonpayment of renewal fees |