Question: agive the classification of torquespeed characteristic of typical industrial loads...

a)Give the classification of torque-speed characteristic of typical industrial loads,

draw their torque speed characteristic and givr one example for each class.

b)Give the classification of torque-speed characteristic of electric motors

c)Give the speed control methods of AC motors

d)Give the speed control methods of DC motors

e)Can the method of inserting an external resistance to the rotor winding be

applicable to speed control of a squirel cage induction motor