The Actual Operation of Transmission Line and Evaluation of the Reclosing Time of Reclosure
2017
In this paper, the actual trip of typical transmission line is analyzed. It includes the trip frequency of transmission lines and the tripping frequency caused by lightning, seasonal distribution characteristics of transmission line trip, and the success rate of reclosing on the transmission line. In this paper, the probability of the occurrence of the trip again is evaluated based on the duration of ground lightning stroke. With the increase of the time of reclosure, the probability of the occurrence of the trip will decrease. By this calculating method, the average probability of tripping of reclosure decreased significantly during a ground lightning stroke process, when the reclosing time t0 is 1s.
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