split-phase method

inductance start method

capacitance start method

resistance start method

Capacitor-start motor

Universal motor

Shaded pole motor

Reluctance motor

10 to 15 watts

50 to 70 watts

120 to 180 watts

250 to 500 watts

short-circuited main winding

short-circuited starting winding

loose connections in overload relay circuit

loose rotor bars

there is no supply voltage

the supply voltage is more than the capacity of the motor

the brush length is reduced by 10%

there is no load on the motor at the time of starting