Under the three-phase symmetrical capacitive load, the armature reaction is a direct-axis reaction, because the phase of the current is 90 degrees ahead of the transmission voltage, and the armature magnetic field generated is on the axis of the magnetic pole, so it is a direct-axis reaction, and its essence is to increase the magnetic field.
Under the three-phase symmetrical inductive load, the armature reaction is a direct-axis reaction, because the phase of the current lags behind the 90-degree potential angle of the transmission voltage, and the armature magnetic field generated is on the axis of the magnetic pole, so it is a direct-axis reaction with degaussing properties.