Electrical Machines Hysteresis loss will depends on f² f1.6 f³ f f² f1.6 f³ f ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor when the rotor speed exceeds the synchronous speed during hunting the damper bars develop synchronous motor torque. the damper bars develop induction generator torque. negative sequence currents are generated. the damper bars develop induction motor torque. the damper bars develop synchronous motor torque. the damper bars develop induction generator torque. negative sequence currents are generated. the damper bars develop induction motor torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which DC motor will have least percentage increase of input current, for the same percentage increase in the torque Compound Wound DC Motor Separately Excited DC Motor DC Shunt Motor DC Series Motor Compound Wound DC Motor Separately Excited DC Motor DC Shunt Motor DC Series Motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At stand still condition the value of slip is 0 infinite value finite value 1 0 infinite value finite value 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 240 V dc series motor takes 40 A when giving its rated output at 1500 rpm. Its resistance is 0.3 Ω. The value of resistance which must be added to obtain rated torque at 1000 rpm is 2.2 Ω 6 Ω 1.9 Ω 5.7 Ω 2.2 Ω 6 Ω 1.9 Ω 5.7 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If dimension of all the parts of a synchorous generator and the number of field and armature turns are double, then generated voltage will change by a factor of 8. 4. 2. 1. 8. 4. 2. 1. ANSWER DOWNLOAD EXAMIANS APP
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