NEIEP Mechanics Practice Exam

In a Wye Stator connection, what is present for all three phases?

1. Common ground

2. Neutral or common

3. Single phase

4. Phase shift

The correct answer is: Neutral or common

In a Wye (Y) Stator connection, the configuration consists of three coils connected at a single point, known as the neutral point, which is common to all three phases. This setup inherently allows for the presence of a neutral or common point where the three phases converge. The neutral point can be utilized in various applications, including providing a return path for unbalanced loads or stabilizing the system voltage. The presence of a neutral or common point is significant because it allows for the balancing of the phases and can help in grounding, reducing the risk of equipment damage during faults. Additionally, this neutral point can also be connected to ground for safety measures. The other options listed are distinct concepts that do not specifically address what is universally present for all three phases in a Wye connection. Common ground pertains to a grounding method and isn’t always necessary in a Wye setup, while single-phase and phase shift refer to different electrical characteristics not directly related to the Wye's configuration itself.