Electrical Machines In the 3-phase induction motor, the resultant flux is of a constant nature and is 3 times maximum value of flux due to any phase 1/2 times maximum value of flux due to any phase 3/2 times maximum value of flux due to any phase equal to φm, where φm is the maximum flux due to any phase 3 times maximum value of flux due to any phase 1/2 times maximum value of flux due to any phase 3/2 times maximum value of flux due to any phase equal to φm, where φm is the maximum flux due to any phase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider the following statements : 1. interpole windings are connected in series with armature windings 2. polarity of interpoles must be the same as that of the main poles in advance 3. distortion of the main field under the pole shoes is not affected by the use of interpoles From above, the correct answer is 1 alone 1 and 3 1 and 2 2 and 3 1 alone 1 and 3 1 and 2 2 and 3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of stator rotating magnetic field (RMF) with respect to rotor is Nr Ns S.Ns Zero Nr Ns S.Ns Zero ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which machine is used for battery charging? DC shunt generator. DC series generator. Compounded DC generator. None of these. DC shunt generator. DC series generator. Compounded DC generator. None of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor is expensive for same Kw output rates? Induction motor. Synchronous motor. AC single phase motor. DC Shunt Motor Induction motor. Synchronous motor. AC single phase motor. DC Shunt Motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 220 V DC generator is run at full speed without any excitation. The open circuit voltage will be about 2 V. 220 V. zero. about 50 V. about 2 V. 220 V. zero. about 50 V. ANSWER DOWNLOAD EXAMIANS APP
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