As a result of armature reaction, the reduction in the total mutual air gap flux in aD.C. generator is approximately

Related MCQs

• The e.m.f. induced in the armature of a shunt generator is 600 V. The armature resistance is 0.1 ohm. If the armature current is 200 A, the terminal voltage will be
• Two generators A and B have 6-poles each. Generator A has wave wound armature while generator B has lap wound armature. The ratio of the induced e.m.f. is generatorA and B will be
• The e.m.f. generated by a shunt wound D.C. generator isE. Now while pole flux remains constant, if the speed of the generator is doubled, the e.m.f. generated will be
• The demagnetising component of armature reaction in a D.C. generator
• In a separately excited generator supplying rated load the armature reaction ,
• Armature reaction in a generator results in
• In D.C. generators on no-load, the air gap flux distribution in space is
• Which of the following steps is likely to result in reduction of hysteresis loss in a D.C. generator ?
• The armature of D.C. generator is laminated to
• For a D.C. generator when the number of poles and the number of armature conductors is fixed, then which winding will give the higher e.m.f. ?