摘要

  The state evaluation of the transmission line has an important role to improve its intelligent operation.A new state-evaluating method of the transmission line based on the self feedback bidirectional Bias network is Proposed, and the mathematical model of the Bias network is established, the ideas and steps of evaluation and the method for conditional probability are introduced, the four probability such as normal, abnormal advertent, and serious of transmission lines and its various parts are obtained.The feasibility of this new method is verified by the examples.

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