What describes delta construction in electrical distribution?

Delta construction in electrical distribution refers to a three-phase system that is connected in such a way that the ends of each phase winding are connected to form a closed loop, without any common neutral wire shared between the phases. This configuration allows for balanced loads, increased reliability, and the ability to handle more power transfer compared to systems that require a neutral connection.

One of the advantages of delta connection is that it supports higher voltage levels for transmission and is often used in industrial applications where heavy machinery requires a three-phase supply. Additionally, delta systems can continue to operate even if one phase fails, although this can lead to unbalanced loads.

The other options reference concepts that either do not accurately represent delta construction or pertain to different electrical configurations that are not relevant to delta connections.