Answer: D 3,464 V
In a certain three-wire Y-connected generator, the phase voltages are 2 kV. The magnitudes of the line voltages are 3,464 V.
Solution:
The detailed solution to the question, in a certain three-wire Y-connected generator, the phase voltages are 2 kV. The magnitudes of the line voltages are provided here.
For a star connection,
Line voltages leads the phase voltages by 30º
ERY= √(E2NR+E2NY+2.ENRENYcos60°)
For a balanced supply
ENR=ENY=ENB=E
ELine= √(E2+E2+2.E.Ecos60°)
Eline=3√Ephase
Eline=3√2000=3464
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