Question

In a three-phase balanced system, the phase difference between any two phases is

• A. \(60^\circ\)
• B. \(90^\circ\)
• C. \(120^\circ\)
• D. \(180^\circ\)

Hint:

In a balanced three-phase system, phase displacement is always \(120^\circ\).

Answer 1

The Correct Option is C

Concept: A three-phase balanced system has three sinusoidal voltages or currents of equal magnitude and frequency.

Step 1: One complete cycle corresponds to: \[ 360^\circ \]

Step 2: In a three-phase system, the three phases are equally spaced. \[ \frac{360^\circ}{3}=120^\circ \]

Step 3: Therefore, the phase difference between any two phases is: \[ \boxed{120^\circ} \]