What is Phase Voltage (Vph)?

Phase Voltage (Vph) refers specifically to the voltage measured across a single phase of an electrical system, such as an alternator, motor, or load. In a three-phase system, each phase can be considered separately, and the voltage across any one of these phases is defined as the phase voltage.

Understanding this concept is crucial for analyzing and designing electrical systems, as it helps in determining how much voltage is supplied to each phase and ensuring that equipment operates correctly and efficiently. In three-phase systems, the phase voltage plays a significant role in calculations involving power, current distribution, and voltage drop.

The other options present ideas related to electrical measurements but do not accurately define Phase Voltage. For example, measuring across a capacitor pertains to reactive components in an AC circuit, while the highest voltage recorded and the difference between line voltages relate more to line voltage concepts, not phase voltage directly.