Question: A 3 - phase, 4 0 0 V , 5 0 Hz , synchronous motor is operating with a load angle of 2 0 ,

A 3-phase, 400 V,50 Hz, synchronous motor is operating with a load angle of 20, with excitation voltage equal to terminal voltage. The synchronous reactance drop in terms of excitation voltage is ________________%.(Ra is negligible)

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