@inproceedings{paperid:1009862, author = {, and Sadeh, Javad}, title = {Considering Failure Probability for Back-up Relay in Determination of the Optimum Routine Test Interval in Protective System Using Markov Model}, booktitle = {2009 IEEE PES General Meeting}, year = {2009}, location = {Calgary}, keywords = {Protection of power systems; Reliability; Routine Test; Self Checking; Back-up relay}, }