Electrical Machines When the rotor of a 3 phase induction motor is blocked then the slip is 1. 0.3. 0.54. 0.7. 1. 0.3. 0.54. 0.7. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In shaded pole induction motors, the flux moves from ------------- region to ----------------- region respectively? shaded, unshaded shaded, shaded unshaded, shaded unshaded, unshaded shaded, unshaded shaded, shaded unshaded, shaded unshaded, unshaded ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 230 V, 50 Hz, 4 pole single phase induction motor is rotating in the clockwise ( forward ) direction at a speed of 1425 rpm. If the rotor resistance at standstill is 7.8 Ω. Then the effective rotor resistance in the backward branch of the equivalent circuit will be 2 Ω. 4 Ω. 8 Ω. 10 Ω. 2 Ω. 4 Ω. 8 Ω. 10 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load test on induction motor is conducted to find which of the following losses? Rotational loss Stator copper loss Stator core loss All of these Rotational loss Stator copper loss Stator core loss All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a stepper motor the detente torque means maximum of the static torque with the phase winding unexcited. minimum of the static torque with the phase winding excited. minimum of the static torque with the phase winding unexcited. maximum of the static torque with the phase winding excited. maximum of the static torque with the phase winding unexcited. minimum of the static torque with the phase winding excited. minimum of the static torque with the phase winding unexcited. maximum of the static torque with the phase winding excited. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To increase starting torque of a 3-phase slip ring induction motor, preferred method is to increase None of these supply voltage rotor resistance supply frequency None of these supply voltage rotor resistance supply frequency ANSWER DOWNLOAD EXAMIANS APP
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