• DocumentCode
    1097284
  • Title

    Protection of thyristors against overvoltage with breakover diodes

  • Author

    Lawatsch, Herbert M. ; Vitins, Janis

  • Author_Institution
    BBC Brown Boveri Ltd., Baden, Switzerland
  • Volume
    24
  • Issue
    3
  • fYear
    1988
  • Firstpage
    444
  • Lastpage
    448
  • Abstract
    Overvoltage protection is achieved by connecting the breakover diode (BOD) between anode and gate of a thyristor in such a way that it is turned on when excessive voltage occurs. The turn-on delay time of the thyristor is dependent on the magnitude of the supplied BOD current. The delay time can be less than 0.3 μs, so that protection against steep transient is possible. The BOD is, in many cases, indispensable for thyristor strings when the load conditions are unpredictable
  • Keywords
    overvoltage protection; semiconductor diodes; thyristor applications; BOD; breakover diodes; overvoltage protection; steep transient; thyristor protection; Anodes; Board of Directors; Breakdown voltage; Delay effects; Industry Applications Society; Plasma applications; Semiconductor diodes; Surge protection; Thyristors; Voltage control;
  • fLanguage
    English
  • Journal_Title
    Industry Applications, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0093-9994
  • Type

    jour

  • DOI
    10.1109/28.2894
  • Filename
    2894
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1097284