Single Phase BIS Certified Distribution Transformers are often employed by low voltage gadgets like household devices.They act as an electrical device that produces single-phase AC from a single-phase AC input. They are used in the distribution of electricity in non-urban areas since the costs and total demand are less than for 3-phase transformers.Single Phase BIS Certified Distribution Transformers are easy to install as well as simple to use. Although a three-phase power source may produce single-phase electricity, a transformer cannot change one kind of power into another.