Electrical Machines During hunting of a synchronous motor negative phase sequence currents are generated. damper bar develops torque. field excitation increases. harmonic are developed in the armature circuit. negative phase sequence currents are generated. damper bar develops torque. field excitation increases. harmonic are developed in the armature circuit. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a practical synchronous motor the pull out torque will occur when the torque angle is nearly equal to 45°. 0°. 75°. 30°. 45°. 0°. 75°. 30°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 100/10, 50 VA double winding transformer is converted to 100/110 V auto transformer. The rating of auto transformer is 550 VA 100 VA 110 VA 500 VA 550 VA 100 VA 110 VA 500 VA ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Thin laminations are used in a machine in order to reduce Hysteresis losses Eddy current losses Copper losses Both 1 and 2 Hysteresis losses Eddy current losses Copper losses Both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Scott connections are used for any of the above. single phase to three phase transformation. three phase to single phase transformation. three phase to two phase transformation. any of the above. single phase to three phase transformation. three phase to single phase transformation. three phase to two phase transformation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The back emf produced in a dc motor depends on P and Z. Z. P. none of these. P and Z. Z. P. none of these. ANSWER DOWNLOAD EXAMIANS APP
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