GB279045A - Improvements in metallic vapour rectifiers for alternating currents - Google Patents

Improvements in metallic vapour rectifiers for alternating currents

Info

Publication number
GB279045A
GB279045A GB23296/27A GB2329627A GB279045A GB 279045 A GB279045 A GB 279045A GB 23296/27 A GB23296/27 A GB 23296/27A GB 2329627 A GB2329627 A GB 2329627A GB 279045 A GB279045 A GB 279045A
Authority
GB
United Kingdom
Prior art keywords
grids
anode
anodes
current
ignition
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
GB23296/27A
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 Switzerland
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri AG Switzerland
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 BBC Brown Boveri AG Switzerland, BBC Brown Boveri France SA filed Critical BBC Brown Boveri AG Switzerland
Publication of GB279045A publication Critical patent/GB279045A/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)
  • Particle Accelerators (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

279,045. Akt.-Ges. Brown, Boveri, et Cie. Oct. 18, 1926, [Convention date]. Low-pressure metallic-vapour apparatus. - Each anode of a multi-anode vapour rectifier is associated with a grid or equivalent device so connected and arranged that in the event of back ignition a potential is impressed upon the grids which causes the current in all the anode circuits to be interrupted. As shown in Fig. 1, the grids may be in the form of conducting bands 5, 6 surrounding the limbs 11, 12 of the container in which the anodes 2, 3 are disposed. The anode current is interrupted in the event of back ignition by connecting the grids through switches 8, 9 to the ends of the secondary winding 1 of the supply transformer in reversed relationship to the anode connections so that a potential opposite, in phase to the anode potential is applied to the grids. A modification is described in which the anodes are disposed within insulating shields in a common casing, the grids being in the form of bands surrounding the and connected to the transformer secondary through current-limiting resistances. In another modification, the grids are in the form of a metallic sleeve surrounding the anodes, and auxiliary anodes are arranged in an exciter circuit to ensure re-ignition after the back ignition has been extinguished. In cases where the grids are exposed to the arc, direct passage of current to the grids may be prevented by embedding the grids in insulating material, for example, a coating of enamel.
GB23296/27A 1926-10-18 1927-09-05 Improvements in metallic vapour rectifiers for alternating currents Expired GB279045A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE279045X 1926-10-18

Publications (1)

Publication Number Publication Date
GB279045A true GB279045A (en) 1928-12-05

Family

ID=6028615

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23296/27A Expired GB279045A (en) 1926-10-18 1927-09-05 Improvements in metallic vapour rectifiers for alternating currents

Country Status (1)

Country Link
GB (1) GB279045A (en)

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