GB391614A - Improvements in and relating to excess voltage protection devices for mercury vapourand similar discharge apparatus - Google Patents

Improvements in and relating to excess voltage protection devices for mercury vapourand similar discharge apparatus

Info

Publication number
GB391614A
GB391614A GB13254/32A GB1325432A GB391614A GB 391614 A GB391614 A GB 391614A GB 13254/32 A GB13254/32 A GB 13254/32A GB 1325432 A GB1325432 A GB 1325432A GB 391614 A GB391614 A GB 391614A
Authority
GB
United Kingdom
Prior art keywords
anodes
protective
excess voltage
mercury
vapourand
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
GB13254/32A
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.)
BBC Brown Boveri AG Germany
BBC Brown Boveri France SA
Original Assignee
Brown Boveri und Cie AG Germany
BBC Brown Boveri France SA
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 Brown Boveri und Cie AG Germany, BBC Brown Boveri France SA filed Critical Brown Boveri und Cie AG Germany
Publication of GB391614A publication Critical patent/GB391614A/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
    • H02H7/10—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)
  • Emergency Protection Circuit Devices (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

391,614. Rectifying alternating current. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. May 7, 1932, No. 13254. Convention date, May 13, 1931. [Class 38 (ii).] In vacuum - dis. charge apparatus such as mercury arc rectifiers in which risk of back ignition due tc excess voltage on the anodes 2 is reduced by the association with each main anode of a protective anode 3, the main and protective anodes being fed respectively through in-ductance 4 and resistance 7, continuous ionization of the discharge paths of the protective anodes is ensured by arranging a continuously burning normally directed arc to impinge thereon. This effect may be produced by causing each of a pair of protective anodes to ionize the discharge path of the other, or by associating with the protective anodes an auxiliary electrode 8 or a group of such electrodes fed by a source 9 or from a potential divider in parallel with the load 6. Alternatively, the exciter anodes of the rectifier may be used for causing ionization of the discharge paths of the protective anodes. Specification 388,808 is referred to.
GB13254/32A 1931-05-13 1932-05-07 Improvements in and relating to excess voltage protection devices for mercury vapourand similar discharge apparatus Expired GB391614A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE391614X 1931-05-13

Publications (1)

Publication Number Publication Date
GB391614A true GB391614A (en) 1933-05-04

Family

ID=6380855

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13254/32A Expired GB391614A (en) 1931-05-13 1932-05-07 Improvements in and relating to excess voltage protection devices for mercury vapourand similar discharge apparatus

Country Status (1)

Country Link
GB (1) GB391614A (en)

Similar Documents

Publication Publication Date Title
GB391614A (en) Improvements in and relating to excess voltage protection devices for mercury vapourand similar discharge apparatus
GB430915A (en) Improvements in or relating to electric discharge rectifiers and the like
GB385465A (en) Improvements in or relating to arc rectifiers
GB381685A (en) Improvements in and relating to electric metal vapour vessels
GB475459A (en) Improvements in and relating to devices for protecting rectifiers containing an ionised gas
GB493534A (en) Improvements in and relating to electric discharge devices
GB398528A (en) Improvements in and relating to mercury vapour rectifiers
GB370405A (en) An improved process and apparatus for the protection of rectifiers against excess currents
GB388801A (en) Improvements in and relating to mercury vapour valves
GB287926A (en) Protective means for single or multi-phase rectifiers operating in parallel with other direct-current machines or apparatus
US1845841A (en) Method and apparatus for preventing back-fires in metal vapor rectifiers
GB390914A (en) Improvements in and relating to vapour electric discharge rectifiers
GB463097A (en) Improvements in and relating to induction furnaces
GB375027A (en) Improvements in electric cut-out systems employing metal vapour valves
GB474264A (en) Improvements in electric discharge devices
GB612731A (en) Improvements in or relating to mercury vapour rectifiers
GB474292A (en) Improvements in or relating to alternating current metal vapour arc rectifiers
GB395887A (en) Improvements in and relating to rectifier installations
GB405499A (en) Improvements in and relating to gaseous electric discharge apparatus
GB521920A (en) Improvements in or relating to the protection of direct current electric supply systems
GB380094A (en) Improvements in electrical discharge tubes
GB741966A (en) Improvements in or relating to circuits for two or more gas-filled or vapour-filled electric discharge tubes
GB271024A (en) Improvements in mercury vapour rectifiers
GB563908A (en) Improvements in or relating to expulsion-type excess-voltage protective devices
GB395747A (en) Improvements in or relating to mercury vapour rectifiers