Electrical Machines A 3 - Φ, 4 pole, 50 Hz induction motor 4 % slip, calculate frequency of the rotor emf? 10 Hz. 3 Hz. 2 Hz. 50 Hz. 10 Hz. 3 Hz. 2 Hz. 50 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The principal of starting of 3 - Φ IM is similar to synchronous motor. repulsion motor type starting. capacitor run IM. transformer with short-circuited secondary. synchronous motor. repulsion motor type starting. capacitor run IM. transformer with short-circuited secondary. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If Pi and Pc represent core and full load copper loss respectively, the maximum KVA delivered to load corresponding to maximum efficiency is equal to rated KVA is Pc/Pi Pi/Pc √(Pi/Pc) (Pi/Pc)2 Pc/Pi Pi/Pc √(Pi/Pc) (Pi/Pc)2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The three point starter is used for Shunt motor as well as compound motors. Series motor. Shunt motor. Shunt, compound and series motor. Shunt motor as well as compound motors. Series motor. Shunt motor. Shunt, compound and series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The wattage rating of a ceiling fan motor will be 50 - 150 W. 10 - 20 W. 250 - 500 W. 200 - 250 W. 50 - 150 W. 10 - 20 W. 250 - 500 W. 200 - 250 W. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In the V curve shown in figure below for a synchronous motor, the parameter of Y and X coordinates are, respectively Power factor and field current. Armature current and field current. Torque and field current. Armature current and torque. Power factor and field current. Armature current and field current. Torque and field current. Armature current and torque. ANSWER DOWNLOAD EXAMIANS APP
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