The Application of Bushing Tap Method in the Transformer Winding Deformation Test

Electric power industry standard DL/T911-2004 Frequency Response Analysis Method of Power Transformer Winding Deformation, it is definition of winding deformation: Under the action of mechanical force or electric force, the power transformer windings axial or radial size changes, usually it characterized by winding locally twisted, bulgin or shift characteristics. Under short-circuit current shocked or suffered a collision during transport transformer could happen for the winding deformation phenomenon, it will directly affect the safe operation of the transformer.