GB287926A - Protective means for single or multi-phase rectifiers operating in parallel with other direct-current machines or apparatus - Google Patents

Protective means for single or multi-phase rectifiers operating in parallel with other direct-current machines or apparatus

Info

Publication number
GB287926A
GB287926A GB8760/28A GB876028A GB287926A GB 287926 A GB287926 A GB 287926A GB 8760/28 A GB8760/28 A GB 8760/28A GB 876028 A GB876028 A GB 876028A GB 287926 A GB287926 A GB 287926A
Authority
GB
United Kingdom
Prior art keywords
grid
cathode
parallel
shield
direct
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
GB8760/28A
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 GB287926A publication Critical patent/GB287926A/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)
  • Cell Electrode Carriers And Collectors (AREA)

Abstract

287,926. Akt.-Ges. Brown, Boveri, et Cie. March 30, 1927, [Convention date]. Low-pressure metallic-vapour apparatus.-A mercury-vapour rectifier 2 operating in parallel with a D.C. machine 8 or battery is protected against reverse arcing from the cathode 4 to the anodes 3 by providing the cathode with a grid 5, the potential of which is, on the occurrence of current reversal, made equal or negative in relation to the anode at fault. The grid may be disposed within the cathode shield 9, which may 'be of metal, or, where the shield is of Insulating material, the grid may encircle the shield. In the case of glass bulb rectifiers, the grid may be in the form of a collar surrounding the cathode.
GB8760/28A 1927-03-30 1928-03-22 Protective means for single or multi-phase rectifiers operating in parallel with other direct-current machines or apparatus Expired GB287926A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE287926X 1927-03-30

Publications (1)

Publication Number Publication Date
GB287926A true GB287926A (en) 1929-01-17

Family

ID=6059433

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8760/28A Expired GB287926A (en) 1927-03-30 1928-03-22 Protective means for single or multi-phase rectifiers operating in parallel with other direct-current machines or apparatus

Country Status (1)

Country Link
GB (1) GB287926A (en)

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