Electrical Machines What is power factor of a 3 - φ induction motor at no load? High. Low. Same as full load. Equal to 1. High. Low. Same as full load. Equal to 1. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The function of field regulator in a DC compound motor is to vary the armature resistance. limit the armature current. control field current. none of above. vary the armature resistance. limit the armature current. control field current. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Torque developed in the rotor is not dependent on the slip inversely proportional to slip directly proportional to slip either of these not dependent on the slip inversely proportional to slip directly proportional to slip either of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutation in a DC machine may be explained as a process by virtue of which emf is induced in the armature conductors. by which electric current in a coil is reversed. how alternate flux affects the main field flux. in which magnetic field is set up. by virtue of which emf is induced in the armature conductors. by which electric current in a coil is reversed. how alternate flux affects the main field flux. in which magnetic field is set up. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase 6 pole 50 Hz induction motor is running at 5% slip.What is the speed of the motor? 1000 rpm 950 rpm 850 rpm 900 rpm 1000 rpm 950 rpm 850 rpm 900 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a 3 - Φ, 4 pole, 50 Hz IM rotating at full load speed of 1440 rpm, calculate speed of rotor field with respect to rotor structure and stator structure respectively? 1440, 1500. 60, 1500. 50, 1500. 60, 1440. 1440, 1500. 60, 1500. 50, 1500. 60, 1440. ANSWER DOWNLOAD EXAMIANS APP
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