Electrical Transformers and Rotating Machines
Electrical Transformers and Rotating Machines
4th Edition
ISBN: 9781337264419
Author: Stephen L. Herman
Publisher: Cengage Learning US
Question
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Chapter 7, Problem 1RQ
To determine

The number of degrees by which, the voltages of a three phase system are out of each other.

Expert Solution & Answer
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Explanation of Solution

Given:

The number of phases of the system (n) is 3.

Calculation:

The below figure represents the three phase system.

Electrical Transformers and Rotating Machines, Chapter 7, Problem 1RQ

Figure-(1)

Calculate the number of degrees (θ).

  θ=360°n=360°3=120°

Thus, the number of degrees between the phase with each other of a three phase system is 120°.

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