GB1186453A - Improvements in or relating to Electric Circuit Interrupting Devices - Google Patents

Improvements in or relating to Electric Circuit Interrupting Devices

Info

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
Application number
GB50182/67A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MO Valve Co Ltd
Original Assignee
MO Valve Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MO Valve Co Ltd filed Critical MO Valve Co Ltd
Priority to GB50182/67A priority Critical patent/GB1186453A/en
Priority to US770520A priority patent/US3519882A/en
Publication of GB1186453A publication Critical patent/GB1186453A/en
Expired legal-status Critical Current

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.
GB50182/67A 1967-11-03 1967-11-03 Improvements in or relating to Electric Circuit Interrupting Devices Expired GB1186453A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
GB1308930A (en) Capacitor discharge ignition systems
GB1186453A (en) Improvements in or relating to Electric Circuit Interrupting Devices
GB1239756A (en)
GB1115467A (en) Improvements in or relating to electrical circuit protection devices
GB1130532A (en) Ignition circuit with voltage regulator
GB1131561A (en) Electrical circuits for providing high power pulses
JPS5799272A (en) Plasma ignition device
GB1046728A (en) Power supply circuits
ES8102427A1 (en) Improvements in or Relating to Electronic Trigger Systems
GB1108636A (en) High tension spark ignition apparatus for burner installations
ES451396A1 (en) Earth leakage protective arrangements
ES324531A1 (en) Spark ignition systems
ES278457A1 (en) Spark ignition systems
FR2382703A1 (en) Electrical machine earth fault current detector - uses electroluminescent diode and thyristor controlled capacitor charge discharge circuit
ES351851A1 (en) Power supply for circuit breaker tripping
GB1201877A (en) Earth leakage protection arrangements
SU140484A1 (en) Device for grid control of converter valves with wide grid pulses
JPS576916A (en) Power supply device
GB1337231A (en) Earth leakage devices
GB1018815A (en) An earth leakage protection circuit
SU803099A1 (en) Thyristor control device
GB1181523A (en) Improvements in and relating to Electric Pulse Apparatus.
GB1165326A (en) Improvements in Thyristor Trigger Circuits
GB1024858A (en) Ignition system
SU390669A1 (en) _? LIBRARY

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