Electrical Machines Which of the following alternators contain large number of poles? None of these Turbo alternators. Hydro alternators. Aame in both alternators. None of these Turbo alternators. Hydro alternators. Aame in both alternators. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 250 V DC generator in run at rated speed with no excitation. The open circuit voltage will be very small, say about 2 or 3 V. about 100 V. zero. 250 V. very small, say about 2 or 3 V. about 100 V. zero. 250 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Scott connections are used for any of the above. single phase to three phase transformation. three phase to two phase transformation. three phase to single phase transformation. any of the above. single phase to three phase transformation. three phase to two phase transformation. three phase to single phase transformation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A cumulatively compounded dc motor delivers rated load power at rated speed. If the series field is short-circuited, then Ia increases and ωm decreses both decrese both armature current Ia and speed ωm increase Ia remains constant but ωm increase Ia increases and ωm decreses both decrese both armature current Ia and speed ωm increase Ia remains constant but ωm increase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stability of a synchronous motor ---------- with the increase in excitation. decreases increases any of the above remains unaffected decreases increases any of the above remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer, hysteresis and eddy current losses depend upon load current both 2 and 3 maximum flux density supply frequency load current both 2 and 3 maximum flux density supply frequency ANSWER DOWNLOAD EXAMIANS APP
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