Electrical Machines In an auto-transformer, power is transferred through conduction process only. None of these both A and B. induction process only. conduction process only. None of these both A and B. induction process only. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Value of specific electric loading of Induction motor is in the range of 40 - 400 ampere conductor / metre. 30000 - 100000 ampere conductor / metre. 5000 - 45000 ampere conductor / metre. 400 - 4000 ampere conductor / metre. 40 - 400 ampere conductor / metre. 30000 - 100000 ampere conductor / metre. 5000 - 45000 ampere conductor / metre. 400 - 4000 ampere conductor / metre. 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 The fall in speed of the DC generator due to increase in load can be corrected by increasing the input to the prime mover. cooling the armature. reducing the load voltage. increasing the excitation. increasing the input to the prime mover. cooling the armature. reducing the load voltage. increasing the excitation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Unbalance 3 - Φ stator currents cause heating of rotor. All of these double frequency currents in the rotor. vibrations. heating of rotor. All of these double frequency currents in the rotor. vibrations. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Swinburne test is conducted under which of the following condition? full load no load any of the above half load full load no load any of the above half load ANSWER DOWNLOAD EXAMIANS APP
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