Electrical Machines What is the frequency of rotor current of 50 Hz induction motor operating at 4% slip? 2.5Hz 2HZ 50Hz 1 Hz 2.5Hz 2HZ 50Hz 1 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous motor the torque is proportional to 1/P 1/P² P² Power P 1/P 1/P² P² Power P ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Flashing the field of DC generator means increasing flux density by adding extra turns of winding. creating residual magnetism by a DC source. neutralising residual magnetism. making the magnetic losses forces parallel. increasing flux density by adding extra turns of winding. creating residual magnetism by a DC source. neutralising residual magnetism. making the magnetic losses forces parallel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed regulation of a DC motor is given as NnL/NfL. (NfL − NnL)/NnL. (NnL − NfL)/NfL. NnL − NfL. NnL/NfL. (NfL − NnL)/NnL. (NnL − NfL)/NfL. NnL − NfL. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The frame of an induction motor is made of aluminium. stainless steel. closed grained cast iron. silicon steel. aluminium. stainless steel. closed grained cast iron. silicon steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the function of inter pole in DC generator? To neutralize the distortion of main field flux due to armature reaction. To get a superior commutation. To serve the economical aspects. Both option B and C. To neutralize the distortion of main field flux due to armature reaction. To get a superior commutation. To serve the economical aspects. Both option B and C. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS