5ANDERSON P M,AGARWAL S K,ASSOCIATES PM. An improved model for protective system reliability[J].IEEE Transactions on Reliability,1992,(03):422-426.
6ANDERSON P M. An improved reliability model for redundant protective system-Markov models[J].IEEE Transactions on Power Systems,1997,(02):573-578.
7KUMN J J,WEBER M S,HOU D. Predicting the optimum routine test interval for protective relays[J].IEEE Transactions on Power Delivery,1995,(02):659-665.