Notice of RetractionResearch methods on winding hot-point temperature of Oil-immersed transformer

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

This paper based on the heat generation of iron core and windings of transformers, makes a detailed analysis of production costs of iron core and load losses and the influence on top oil temperature and hot-spot temperature of transformers. It also explains clearly the meanings of parameters in winding hot-point temperature equation recommended by GB/T 15164-1994 Loading Guide for Oil-immersed Power Transformers. And adjustments and revisions are made on the winding index and oil and fat item to get more reasonable corresponding physical significance of them. At the end, a comparison is made between the recommended equation calculation results and improved equation in loading guide. Although there is a similar tendency of hot-point temperature of the two and the calculation results are not in great different, a more reliability is in improved equation.