Electrical Machines which of the following losses are negligible in blocked rotor test? mechanical loss both A and B iron loss copper loss mechanical loss both A and B iron loss copper loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slip of an induction motor during DC rheostatic braking is s. 2 + s. 1 - s. 2 - s. s. 2 + s. 1 - s. 2 - s. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The power factor of an induction motor operating at no load will have a value around 0.2 lead unity 0.9 lag 0.2 lag 0.2 lead unity 0.9 lag 0.2 lag ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Find the synchronous reactance of alternators in which a given field current of 200 A on short circuit and a generated emf of 50 V on open circuit. Armature resistance is 0.1 ohm 0.5Ω. 0.23Ω. 1Ω. 0.25Ω. 0.5Ω. 0.23Ω. 1Ω. 0.25Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In above questions, find the power delivered by each of the alternators to a load of impedance 6Ω(resistive) 3190 W, 5040 W. 1000 W, 5040 W. 100 W, 2000 W. 6000 W, 7000 W. 3190 W, 5040 W. 1000 W, 5040 W. 100 W, 2000 W. 6000 W, 7000 W. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the applied voltage of a DC motor is 230 V, then back emf, for maximum power developed is 200 V. 230 V. 460 V. 115 V. 200 V. 230 V. 460 V. 115 V. ANSWER DOWNLOAD EXAMIANS APP
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