Electrical Machines A 3-phase, 50 Hz, 4 pole induction motor is running at 1440 rpm and rotor input power is 2KW. Find the rotor copper loss? 80W 60W 40W 100W 80W 60W 40W 100W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine yoke offers produce working flux mechanical protection to the machine both A and B flux path completion produce working flux mechanical protection to the machine both A and B flux path completion ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the field-flux axis and armature-mmf axis are respectively along direct axis and interpolar axis quadrature axis and direct axis quadrature axis and interpolar axis direct axis and indirect axis direct axis and interpolar axis quadrature axis and direct axis quadrature axis and interpolar axis direct axis and indirect axis ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the frequency of a alternator, if P = number of poles and N = revolution made per second? 120P / N Hz. 120N / P Hz. PN / 2 Hz. 120 / PN Hz. 120P / N Hz. 120N / P Hz. PN / 2 Hz. 120 / PN Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous motor the torque is proportional to 1/P P² Power P 1/P² 1/P P² Power P 1/P² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is minimized by laminating the core of a transformer? Copper loss. Eddy current loss. Stray loss. Hysteresis loss. Copper loss. Eddy current loss. Stray loss. Hysteresis loss. ANSWER DOWNLOAD EXAMIANS APP
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