Electrical Machines The principal of starting of 3 - Φ IM is similar to repulsion motor type starting. synchronous motor. capacitor run IM. transformer with short-circuited secondary. repulsion motor type starting. synchronous motor. capacitor run IM. transformer with short-circuited secondary. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If Ke is eddy current constant, Kf is form factor, f is supply frequency, Bm maximum flux density in core of transformer, the expression of eddy current loss in transformer, is given by Kef2Kf2Bm2. Kef2Kf2Bm. Kef2KfBm2. KefKf2Bm2. Kef2Kf2Bm2. Kef2Kf2Bm. Kef2KfBm2. KefKf2Bm2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In most condition which frame of motor will be preferred? Drip proof. Totally enclosed fan coiled. Open type. Splash proof. Drip proof. Totally enclosed fan coiled. Open type. Splash proof. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stability of a synchronous motor ---------- with the increase in excitation. decreases remains unaffected increases any of the above decreases remains unaffected increases any of the above ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For successful parallel operation of two single phase transformers, the most essential condition is that their KVA ratings are equal polarities are properly connected percentage impedances are equal turn- ratios are exactly equal KVA ratings are equal polarities are properly connected percentage impedances are equal turn- ratios are exactly equal ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two windings provided on the stator of 1-phase induction motor, one main winding and the other auxiliary winding are connected in series either of these depending on the design of the motor through inductive coupling in parallel in series either of these depending on the design of the motor through inductive coupling in parallel ANSWER DOWNLOAD EXAMIANS APP
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