3.13 AC Theorey

Question 1

Single phase power

Answer 1

Two wire alternating current power circuit.
Typically has one power wire, one phase wire, and neutral wire

Question 2

Three phase systems

Answer 2

Has three identical coils counted on the same rotor at 120 degree intervals.
The EMF will be sinusidiual and identical but each with a phase displacement of 120 degrees.
Can draw two different voltages - In aircraft 115v or 200v

Question 3

RMS

Answer 3

Root mean square.

Divide the peak value by root 2

Or multiply the peak value by 0.707