Experiences in using IEEE proposed test procedures for the evaluation of systems of insulation for specialty transformers number 259 and electronic power transformers number 266

This paper is concerned with the comparison of two procedures for the evalution of the insulation systems of transformers when using an electronic type power transformer. These procedures are: IEEE No. 259, "Proposed Test Procedure for Evaluation of Systems of Insulation for Specialty Transformers," and IEEE No. 266 "Proposed Test Procedure for the Evaluation of Insulation Systems for Electronics Power Transformers."