System voltage is defined as which value of the electrical system?

The definition of system voltage can be understood in the context of how electrical systems are structured and how they operate. In most three-phase power systems, the phase to neutral voltage refers to the voltage measured between one phase conductor and the neutral point in the system. This value is particularly important because it is the voltage at which many electrical devices operate, especially in single-phase systems derived from three-phase sources.

In many cases, especially in distribution systems, the phase to neutral value is used for assessing the nominal voltage of the system. It provides insight into safe operating conditions and is crucial for ensuring compatibility with single-phase loads that are commonly connected to a neutral conductor.

The other choices represent different aspects of voltage in power systems. The phase to phase value is relevant for balancing loads and understanding the voltage across two phases in three-phase systems. Line voltage is typically synonymous with the phase to phase value in a three-phase system. Total system voltage is a broader concept that could encompass nominal voltage levels, but it is not specifically defined in the way that phase to neutral voltage is. Understanding the intricacies of system voltage definitions aids in troubleshooting, designing, and working safely with electrical systems.