In three-phase systems, the difference in voltage levels can result from which configurations?

In three-phase systems, the configurations of Wye and Delta connections are fundamental to understanding how voltage levels can differ. In a Wye (Y) connection, each phase is connected to a common neutral point, which allows for line voltages that are √3 times the phase voltages. This configuration is beneficial for providing different voltage levels for different applications while maintaining a balanced load.

Conversely, the Delta (Δ) connection involves connecting the phases in a closed loop. In this arrangement, the line voltage is equal to the phase voltage. The differences in how these connections handle voltage levels can impact both the way power is distributed and the performance of electrical equipment. The choice of configuration also affects the system's ability to handle fault currents and overall efficiency.

Therefore, recognizing the distinctions between Wye and Delta configurations is crucial for understanding voltage behavior in three-phase systems, making this the correct option.