By shifting the brush-axis

By interchanging the supply terminals

By changing the main winding terminals

By changing the compensating winding terminals

To maintain constant speed

To protect from over loading

To improve the power factor

To reduce the sparks in contacts

Works normally

Reduction in speed

Reduction in torque

Runs with very high speed

By connecting capacitor across centrifugal switch

By connecting capacitor in series with centrifugal switch

By adding compensating winding with armature

By connecting an inductor in series with centrifugal switch