Electrical Machines A 3-phase, 50Hz, 4 pole induction motor is running at 1440 rpm and rotor input power is 2KW. Find the rotor output power? 2000W 1450W 1920W 1820W 2000W 1450W 1920W 1820W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If a transformer has turns ratio K, the primary and secondary current are I1 and I2 respectively and magnetizing current and core loss component of no load current Iμ and Iw respectively, then I1 = KI2 + Iw + Iμ.ok I1 = KI2. I1 = KI2 + Iw. I1 = KI2 + Iμ. I1 = KI2 + Iw + Iμ.ok I1 = KI2. I1 = KI2 + Iw. I1 = KI2 + Iμ. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Semi closed slots or totally closed slots are used in induction motors, essentially to reduce magnetising current and improve power factor increase pull out torque decrease starting torque improve starting torque reduce magnetising current and improve power factor increase pull out torque decrease starting torque improve starting torque ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature of DC motor is laminated to reduce the inductor. to reduce the mass. to reduce the eddy current loss. to reduce the hysteresis loss. to reduce the inductor. to reduce the mass. to reduce the eddy current loss. to reduce the hysteresis loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Variation in speed by ward-Leonard control of DC motors occurs due to variation in Supply voltage. Field excitaion. Armature current. Armature voltage. Supply voltage. Field excitaion. Armature current. Armature voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Tappings of a transformer are provided at the phase end of hv side at the middle of hv side at the phase end of lv side at the neutral side end of hv side at the phase end of hv side at the middle of hv side at the phase end of lv side at the neutral side end of hv side ANSWER DOWNLOAD EXAMIANS APP
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