Electrical Machines What is power factor of a 3 - φ induction motor at no load? High. Equal to 1. Low. Same as full load. High. Equal to 1. Low. Same as full load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines From no load to full load the slip will not change. slightly increase. None of these slightly decrease. not change. slightly increase. None of these slightly decrease. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power developed depends on load angle reactance voltage both 1and 2 load angle reactance voltage both 1and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor has the highest power factor at full load? Shaded pole Capacitor start Capacitor run Resistance split phase Shaded pole Capacitor start Capacitor run Resistance split phase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The low voltage winding of a 400/230 V single phase 50 Hz transformer is to be connected to keep the magnetization current at the same level in both the cases the voltage at 25 Hz should be 230 V 460 V 115 V 65 V 230 V 460 V 115 V 65 V 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
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