Armature Leakage Reactance in Alternators

Armature Leakage Reactance in Alternators

Q1. The leakage flux in the armature of alternator makes the armature winding

a. Inductive in nature
b. Capacitive in nature
c. Resistive in nature
d. All of these

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Q2. Out of two alternators which are sharing an inductive load equally, if excitation of one alternator is increased then

a. Other alternator will deliver less current
b. Other alternator will deliver more current
c. Both will deliver equal current
d. None of these

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Q3. The effect of armature flux in an alternator depends on

a. Magnitude of current flowing through the armature winding
b. Nature of power factor of the load connected to the alternator
c. Both (a) & (b)
d. None of these

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Q4. If ∅_f is the main flux produced by the field winding of alternator is responsible for producing E_ph, then

a. E_ph leads ∅_f by 90 degree
b. E_ph leads ∅_f by 45 degree
c. E_ph lags ∅_f by 45 degree
d. E_ph lags ∅_f by 90 degree

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