Star Delta is a leader in Manufacturing Isolation Transformers (Single Phase and Three Phase). Star Delta delivers and supplies all over the worlds in all major countries.
Use of the Isolation Transformer for reducing electrical noise. Isolation transformers are also used for the power supply of devices not on ground potential as one option.
Basically Isolation transformers provide galvanic isolation and are used to protect against electric shock, to suppress electrical noise in sensitive devices, or to transfer power between two circuits which must not be connected.