Andras Istvan  Fazekas, Eva V.  Nagy, 
    Improvement of Lolp Calculation Accuracy with Three-and-More-State Reliability Descriptions,
    International Journal of Electrical and Power Engineering,
    Volume 7,Issue 3,
    2013,
    Pages 60-64,
    ISSN 1990-7958,
    ijepe.2013.60.64,
    (https://makhillpublications.co/view-article.php?doi=ijepe.2013.60.64)
    Abstract: Markov models may be used for three-and-more-state reliability 
  descriptions of power plants. Researchers, demonstrate the potential improvement 
  in system reliability calculation accuracy (such as LOLP) with multi-state power 
  plant reliability descriptions.
    Keywords: Loss-of-load probability calculations;power generation reliability;power system reliability;reliability modelling of power plant units with extraction condensing and back pressure turbine;power plant unit reliability description