Electrical Machines Two mechanically coupled alternators deliver power at 50 Hz and 60 Hz respectively. The highest speed of the alternators is 3600 rpm. 600 rpm. 3000 rpm. 500 rpm. 3600 rpm. 600 rpm. 3000 rpm. 500 rpm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation of the synchronous generator fails, it acts as a/an synchronous motor. induction motor. induction generator. synchronous generator. synchronous motor. induction motor. induction generator. synchronous generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a single phase capacitor start induction motor which of the following is valid? Direction of rotation cannot be changed. None of these. Rotation can be changed by reversing main winding terminals. Rotation can be changed by interchanging supply terminals. Direction of rotation cannot be changed. None of these. Rotation can be changed by reversing main winding terminals. Rotation can be changed by interchanging supply terminals. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer OC test is conducted on HV side and SC test is conducted on LV side both OC and SC tests are conducted on LV side OC test is conducted on LV side and SC test is conducted on HV side both Oc and SC tests are conducted on HV side OC test is conducted on HV side and SC test is conducted on LV side both OC and SC tests are conducted on LV side OC test is conducted on LV side and SC test is conducted on HV side both Oc and SC tests are conducted on HV side ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A part an alternator winding consist of eight coils in series, each having an emf of 20 V rms induced in it. Coils are placed in successive slots and between each slot and the next, there is an electrical phase displacement of 30°. Find the emf of eight coils in series 56.91 V. 66.91 V. 86.91 V. 76.91 V. 56.91 V. 66.91 V. 86.91 V. 76.91 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Lamination of transformer core is made of silicon steel. cast iron. cast steel. wrought iron. silicon steel. cast iron. cast steel. wrought iron. ANSWER DOWNLOAD EXAMIANS APP
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