Electrical Machines Which of the following statement is true for an AC synchronous motor? It is a constant speed motor. It is a variable speed motor. It is a step angled motor. It is a high reluctance motor. It is a constant speed motor. It is a variable speed motor. It is a step angled motor. It is a high reluctance motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If a transformer has turns ratio K, the primary and secondary current are I1 and I2 respectively and magnetizing current and core loss component of no load current Iμ and Iw respectively, then I1 = KI2. I1 = KI2 + Iw + Iμ.ok I1 = KI2 + Iw. I1 = KI2 + Iμ. I1 = KI2. I1 = KI2 + Iw + Iμ.ok I1 = KI2 + Iw. I1 = KI2 + Iμ. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the shunt resistance component equivalent circuit obtained by no load test of an induction motor representative of ? windage and friction loss both 1 and 2 core loss only Copper loss windage and friction loss both 1 and 2 core loss only Copper loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dummy coils are used for increasing efficiency. reducing armature reaction. All of these mechanical balancing. increasing efficiency. reducing armature reaction. All of these mechanical balancing. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, armature reaction refers to what? Effect of armature flux on the main field flux. Effect of field flux on the armature flux. Effect of armature flux on the load. None of these Effect of armature flux on the main field flux. Effect of field flux on the armature flux. Effect of armature flux on the load. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the space distribution of air-gap flux density wave at no load is sinusoidal co- sinusoidal rectangular flat-topped sinusoidal co- sinusoidal rectangular flat-topped ANSWER DOWNLOAD EXAMIANS APP
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