For a secondary voltage of 240/416/480, what is the configuration called?

The configuration of 240/416/480 volts typically refers to a system using both delta and high leg connections. In electrical systems, the delta configuration is often used where three wires are connected in a triangular formation, allowing for the use of three-phase voltages. The high leg refers to a specific setup where the system has an unbalanced load, and one phase has a voltage that is higher compared to the others. This is often seen in certain delta configurations, particularly when power is derived to supply single-phase loads.

In contrast, the other configurations listed do not apply. Wye (or star) configurations, while correct for some voltage systems, typically do not describe the mentioned secondary voltages. Similarly, other terms like "ring" do not pertain to standard electrical configurations relevant to the specified voltages. The most common naming for the provided secondary voltage is indeed delta with a high leg, which satisfactorily describes the setup for this voltage context.