The swing equation for a synchronous machine is based on
(A) relative motion between load angle and stator magnetic field
(B) maximum power flow possible through a particular point
(C) net torque and angular displacement
(D) relation between excitation voltage and excitation current
(A) relative motion between load angle and stator magnetic field
(B) maximum power flow possible through a particular point
(C) net torque and angular displacement
(D) relation between excitation voltage and excitation current