Can anyone give me the torque equations for AC synchronous motor and generator
Your question is somewhat complicated but adding a load will lessen pace. The intention of a process is to run loaded on the preferred speed. One factor concerning the vehicle alternator or some other synchronous generator is that a excitation present is required so within the case of the auto alternator, it wants to be linked to a battery to work. Also in lots of instances the ignition lamp is also a part of the circuit and must be linked for it to work.
Torque=Kt*I, where Kt is the torque constant and I is the current. It's that simple.