How does Line Current relate to Phase Current in a Wye System?

In a Wye (or Star) system, the relationship between line current and phase current is such that they are equal. This is due to the configuration of the Wye connection, where each phase is connected to a common neutral point. As a result, the current flowing through each phase (phase current) is the same as the current flowing through the corresponding line that connects each phase to the power source.

This equality is fundamental to understanding three-phase systems and is essential for analyzing loads and balancing currents. The fact that the line current equals the phase current simplifies calculations and makes it easier to design and troubleshoot three-phase electrical systems.

The other options do not accurately depict the relationship in a Wye system. Understanding this concept is crucial for successfully working with electrical systems, as it helps ensure proper load balancing and system efficiency.