A First Course on Electrical Drives

3-phase acceleration applied voltage armature circuit armature current braking torque cent circuit resistance connected constant load corresponding cycloconverter dc series motor dc shunt motor determined drive system driving motor duty cycle electric drive energy lost equation field current field resistance flux frequency frequency changer full load torque Hence hoisting increase induced emf induction motor inertia torque inverter kg-m² kinetic energy line shaft load current machine magnetic magnitude maximum torque moment of inertia motion motor driving motor shaft motor torque Newton metres obtained operation output voltage plugging pole quadrant R₁ R₂ ratio reactance rectifier regenerative braking rheostatic braking rotor circuit rotor resistance shown in Fig slip slipring SmaxT speed torque characteristics Speed torque curves starting torque stator stator resistance supply synchronous motor synchronous speed T₁ temperature rise three phase thyristor Tmax torque developed vary voltage zero