Electrical Machines At the instant of starting, the per unit slip of 3 - Φ induction motor is 0.05. 0.5. 0.1. 1.0. 0.05. 0.5. 0.1. 1.0. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Synchronous condensers are used to reduce hunting improve the power factor improve starting torque All of these reduce hunting improve the power factor improve starting torque All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a DC series motor is Inversely proportional to the armature current. Proportional to field current. Proportional to the armature current. Proportional to the square of the armature current. Inversely proportional to the armature current. Proportional to field current. Proportional to the armature current. Proportional to the square of the armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The flux involved in the emf equation of a transformer has rms value. total value. maximum value. average value. rms value. total value. maximum value. average value. 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 + Iw + Iμ.ok I1 = KI2 + Iμ. I1 = KI2. I1 = KI2 + Iw. I1 = KI2 + Iw + Iμ.ok I1 = KI2 + Iμ. I1 = KI2. I1 = KI2 + Iw. 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 2 and 3 1 and 2 1 alone 1 and 3 2 and 3 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
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