public override bool Equals(object obj)
 {
     if (base.Equals(obj))
     {
         PowerTransformer x = (PowerTransformer)obj;
         return(CompareHelper.CompareLists(x.transformerWindings, this.transformerWindings));
     }
     else
     {
         return(false);
     }
 }
 protected PowerTransformer(PowerTransformer pt) : base(pt)
 {
     TransformerWindings.AddRange(pt.TransformerWindings);
 }