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Three-Phase Systems in Power Applications - Engineering

Q1:

In a certain three-wire Y-connected generator, the phase voltages are 2 kV. The magnitudes of the line voltages are

A 2,000 V

B 6,000 V

C 666 V

D 3,464 V

ANS:D - 3,464 V

In star connected systems,
Line voltage is √3 phase voltage .
i.e. = 2000 * √3 .
Hence 3464 is the answer.