11 kV phase to phase voltage, what is the value of phase to ground voltage?

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11 kV phase to phase voltage, what is the value of phase to ground voltage?
In matlab simulink, at primary side of the transformer I am getting arounf 8981V as phase to ground voltage?
What is the formula?
Transformer is star configuration.

Answers (1)

David Goodmanson
David Goodmanson on 29 Nov 2023
Edited: David Goodmanson on 1 Dec 2023
Hi N^2
I believe the result should be Vgnd = 11000/sqrt(3) = 6351 V. However, if the 11000V is RMS, and the voltage to ground is taken to be peak-to-peak, then Vgnd(pk to pk) = 11000/sqrt(3)*sqrt(2) = 8981 V. But of course that is comparing apples and oranges.

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