Voltage in phase with direct axis - Blondel’s two reaction theory

Q.  In Blondel’s two reaction theory, if Ia is armature current per phase, Ra is armature resistance, Xd is direct axis synchronous reactance, Xq is quadrature axis synchronous reactance and V is the terminal voltage, then the voltage in phase with direct axis will be
- Published on 29 Oct 15

a. V + IaRa + Ia Xd
b. V + IaRa + IaXq
c. V + IaXd + IaXq
d. V + IaRa + IaXd + IaXq

ANSWER: V + IaRa + Ia Xd

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