Output voltage is pulsating
Output voltage is above normal
Generator fails to build up voltage
Generator builds up voltage normally
Output voltage increases
Output voltage decreases
Output voltage will become zero
178 V
243 V
357 V
428 V
Using compensating winding
Providing additional inter poles
Increasing brush contact resistance
Adding resistance wires with winding
Field coil resistance increases
Armature resistance increases
Increase the armature reaction
Looses its residual magnetism