Evaluation Method for Circuit-based Reliability Statistics of Transmission System

Evaluation method of circuit-based reliability statistics can reflect system structure problem in certain extent and together with equipment reliability statistical can make more objective comprehensive on the statistical evaluation of transmission system reliability.Firstly,the definition of the circuit and determination method and the statistical evaluation index system which was based on the circuit and statistical calculation formula of concrete targets were proposed.Finally,the example shows that the statistical evaluation method proposed in this paper can reflect the transmission system grid construct influence of the reliability,thus provide more referential information for the transmission system planning and the operation management departments.