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Of course!

The line voltage is 36.225 kV;Â **With the external circuit:**

(This last graph is the max amplitude of the flux density B on sections of core legs)

**Without the external circuit:**

The excitation on the widings is the following (AT1 and AT2 are in parallel):

AT1_a=36225*sqrt(2)*cos(2*pi*60*time)

AT1_b=36225*sqrt(2)*cos(2*pi*60*time+120deg)

AT1_c=36225*sqrt(2)*cos(2*pi*60*time+240deg)

AT2_a=36225*sqrt(2)*cos(2*pi*60*time)

AT2_b=36225*sqrt(2)*cos(2*pi*60*time+120deg)

AT2_c=36225*sqrt(2)*cos(2*pi*60*time+240deg)

Here the flux density is almost exactly of the project (1,73 T)

As i can see, the excitation is exactly the same with or without the external circuit, but the simulation does't work with the circuit.