In order to identify about Isolation Transformers and Ultra Isolation Transformers, you want to understand what a transformer is and what principle it serves. A transformer, basically stated, is a machine that converts 1 volt to another. There are of course several types of transformers.Let’s some transformers have single coil with a range of fixed or movable taping and they are known as auto-transformers. But these kinds of non-isolated transformers are attractive obsolete and their use is now limited to equipments like voltage regulators/voltage stabilizers. Today transformers with 2 coils are the ones rampantly used. These two coils are isolated from every other with lamination materials which are not conductive.