Evaluation Method for Winding Performance of Distribution Transformer

In order to ensure the safe and stable operation of a power system, performance evaluation transformer windings after short-circuit test can predict whether are deformed in provide useful reference for maintenance sector. This paper proposes method evaluating improve overall effectiveness winding evaluation. The index data obtained based on impedance method, frequency response oscillation wave used algorithm proposed this paper. First, system is constructed. Second, weight each determined by analytic hierarchy process, then fuzzy comprehensive assessment introduced, matrix established, results calculated using formula. Finally, maximum membership principle determine level results, state obtained. example shows that measured be as “good”. Compared with traditional simplify while maintaining higher accuracy.