Final answer:
Engineers can choose from three different primary voltage designations: Phase-to-phase, Phase-to-ground, or Phase-to-neutral.
Step-by-step explanation:
Engineers can choose from three different primary voltage designations: Phase-to-phase, Phase-to-ground, or Phase-to-neutral (also known as Line-to-neutral or Line-to-ground).
In electrical systems, phase-to-neutral voltage refers to the voltage between a live/hot wire and the neutral wire. This voltage is commonly used in residential and commercial electrical systems, where the neutral wire serves as the return path for the current.
Phase-to-neutral voltage is typically lower than phase-to-phase voltage, which is the voltage between two live/hot wires. The phase-to-phase voltage is commonly used in industrial and high-power applications.