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Module 3. Electrical fundamentals

The line voltage of a 3 phase star connected AC generator is

  • equal to the phase voltage.
  • greater than the phase voltage.
  • less than the phase voltage.

Explanation

In a star (Y) connected generator the line voltage is the phase voltage multiplied by root 3 (1.732), so it is always greater than the phase voltage; for example, 115V phase gives 200V line. The two are only equal in a delta connection, never in star.

Jordi asking:

it is less i think the answer is wrong.

Community Comments (2)

C
costasungol Posts: 1 28.09.2024 / 13:18
Vline=root3*phase voltage so the correct answer is gretaer than the phase!
J
Jordi Posts: 198 17.10.2024 / 16:14
thank you i managed to pass it

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