In a three-phase power system, what is the phase difference between the phases?

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Question: In a three-phase power system, what is the phase difference between the phases?

Options:

Correct Answer: 120 degrees

Solution:

In a balanced three-phase system, the phase difference between each of the three phases is 120 degrees.

In a three-phase power system, what is the phase difference between the phases?

In a three-phase power system, what is the phase difference between the phases?

Step 1: Understand that a three-phase power system has three separate electrical currents or voltages.
Step 2: Know that these three phases are usually labeled as Phase A, Phase B, and Phase C.
Step 3: In a balanced three-phase system, the phases are evenly spaced apart.
Step 4: The total circle of 360 degrees is divided by 3 phases.
Step 5: Calculate the phase difference by dividing 360 degrees by 3, which equals 120 degrees.
Step 6: Conclude that the phase difference between each of the three phases is 120 degrees.

Three-Phase Power System – A system that uses three separate conductors to transmit electrical power, with each phase offset by a specific angle.
Phase Difference – The angular separation between the waveforms of different phases in a multi-phase system.
Balanced System – A system where the loads on all phases are equal, resulting in equal phase differences.