Question

List phase angles in positive balanced system (abc type) for phases a, b, and c :

A) Phase a: 0 degrees, Phase b: 120 degrees, Phase c: 240 degrees.
B) Phase a: 0 degrees, Phase b: 60 degrees, Phase c: 120 degrees.
C) Phase a: 0 degrees, Phase b: 180 degrees, Phase c: 360 degrees.
D) Phase a: 0 degrees, Phase b: 90 degrees, Phase c: 180 degrees.

Answer 1

The phase angles for a positive balanced three-phase system are Phase a: 0 degrees, Phase b: 120 degrees, and Phase c: 240 degrees.

Step-by-step explanation:

The listing of phase angles for a positive balanced three-phase system (abc type) is an important concept in electrical engineering, specifically in the study of alternating current (AC) circuits. The correct phase angles, which define the electrical phase displacement among the three phases, are as follows: Phase a at 0 degrees, Phase b at 120 degrees, and Phase c at 240 degrees. This configuration ensures that the phases are equally spaced and the system is balanced, which is essential for the proper functioning of three-phase electrical equipment.

Therefore, the correct answer to the question is:
A) Phase a: 0 degrees, Phase b: 120 degrees, Phase c: 240 degrees.