What is a dual fed transformer?

A dual fed transformer is specifically designed to receive power from two separate sources, which allows it to provide redundancy and improved reliability in power distribution systems. This design is particularly advantageous in critical applications where uninterrupted power supply is vital, such as in industrial operations, large commercial buildings, and certain utility applications.

By being connected to two sources, a dual fed transformer ensures that if one source fails, the other can continue to supply power, minimizing downtime and potential disruptions. This redundancy is essential for maintaining continuous operation, especially in environments where power reliability is paramount.

The other choices describe features or applications that do not align with the concept of a dual fed transformer. For instance, operating only on single-phase power does not capture the dual source capability; exclusive use in renewable energy systems limits its application scope, and converting AC to DC does not relate to the dual feed characteristic.