Isolation Transformers allow precise devices to operate safely by insulating secondary side from primary voltage. Electrical connections are done via connectors in the selected section by considering maximum current. No frequency change properties. Therefore, input voltage frequency is the same with output voltage frequency.
The tranformers with high input voltage are entitled as lowering, transformers with minor are entitled as strengthening. Besides, it is entitled as auto or isulation transformer with regard to be found the mutual points of bands, They are entitled as distribution transformer, measurement transformer, lighting transformer in accordance with usage place.