NLC Electrical Grid 2 Practice Test

In a Delta electrical system, the voltage is described as which type?

Phase to phase Phase to neutral Line to line Neutral to phase

Correct Answer:

Phase to phase

Explanation:

In a delta arrangement, each winding is connected directly between two lines, so the voltage across a winding—its phase voltage—is the voltage between those two lines. That is why the voltage is described as phase-to-phase (line-to-line). There’s typically no neutral conductor in a delta, so phase-to-neutral descriptions don’t apply here. If you were looking at a wye connection, you’d have line-to-neutral voltages and, between lines, a line-to-line voltage that’s √3 times the phase-to-neutral value.

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