Electrical Machines When maximum flux density is constant, the eddy current losses are proportional to f V2 V f2 f V2 V f2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a 3 - Φ induction motor is clockwise when it is supplied with 3 - Φ sinusoidal voltage having phase sequence A - B - C. For counterclockwise rotation of motor, the phase sequence of the supply should be C - A - B. B - C - A or C - A - B. A - C - B. B - C - A. C - A - B. B - C - A or C - A - B. A - C - B. B - C - A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In salient pole synchronous machine, if direct axis reactance and quadrature axis reactance is equal, then power developed due to reluctance is maximum any of the above infinite value zero maximum any of the above infinite value zero ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two mechanically coupled alternators deliver power at 50 Hz and 60 Hz respectively. The highest speed of the alternators is 600 rpm. 3000 rpm. 500 rpm. 3600 rpm. 600 rpm. 3000 rpm. 500 rpm. 3600 rpm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A synchronous motor will deliver maximum power when load angle is 0°. load angle is equal to internal angle θ. load angle is 45°. input power factor is unity. load angle is 0°. load angle is equal to internal angle θ. load angle is 45°. input power factor is unity. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A commutator in dc machine provide ----------------- rectification? half wave full wave controlled full wave half wave controlled half wave full wave controlled full wave half wave controlled ANSWER DOWNLOAD EXAMIANS APP
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