Converts A.C. into D.C

Reverses the polarity of D.C

Changes D.C. supply into A.C supply

Reverses the direction of rotation of the generator

Cost is less

More flexible

Less voltage drop

More insulation resistance

Providing double earthing

Reducing the pit depth for earthing

Increasing the length of the electrodes

Decreasing the length of the electrodes

Provide electrostatic shield

Protect the coils in the meter

Reduce the value of current in the meter

Avoid the effect of electrolytic emf interference

It is not having controlling Torque

Provided with air friction damping

The deflecting torque is directly proportional to the current

The deflecting torque is directly proportional to the square of the current