public override bool Equals(object obj)
 {
     if (base.Equals(obj))
     {
         TransformerWinding x = (TransformerWinding)obj;
         return(x.PowerTransformer == this.PowerTransformer);
     }
     else
     {
         return(false);
     }
 }
 protected TransformerWinding(TransformerWinding tw) : base(tw)
 {
     PowerTransformer = tw.PowerTransformer;
 }