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Questions and Answers
What is the main difference between single-phase and 3-phase power?
What is the main difference between single-phase and 3-phase power?
- Single-phase power has a phase wire and a ground wire
- Single-phase power has current flowing between one power wire and one neutral wire
- 3-phase power requires more conductor material
- 3-phase power has three separate voltages present (correct)
How are the phase AC signals in a 3-phase power circuit spaced?
How are the phase AC signals in a 3-phase power circuit spaced?
- 120 electrical degrees apart (correct)
- 60 electrical degrees apart
- 180 electrical degrees apart
- 90 electrical degrees apart
Why is less conductor material required in 3-phase power compared to single-phase power?
Why is less conductor material required in 3-phase power compared to single-phase power?
- 3-phase power is 1.73 times more than single-phase voltage (correct)
- 3-phase power uses thicker wires
- 3-phase power has a lower power factor
- 3-phase power has a higher risk of voltage drop
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