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? 1450W 1820W 2000W 1920W 1450W 1820W 2000W 1920W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The air gap between stator and the rotor of the 3 - φ induction motor is kept air gap does not matter. as small as possible. as wide as possible. depends on the material of stator and the rotor. air gap does not matter. as small as possible. as wide as possible. depends on the material of stator and the rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following relation is correct? Xd > Xq. Xd = Xq. Xd < Xq. None of these Xd > Xq. Xd = Xq. Xd < Xq. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A simple method of increasing the voltage of a DC generator is to increase the number of turns in field coil. increase the speed of shaft rotation. increase the source frequency. increase the number of turns in armature coil. increase the number of turns in field coil. increase the speed of shaft rotation. increase the source frequency. increase the number of turns in armature coil. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Air core transformer as compared to iron core transformer, has more copper loss. no magnetic core loss. less magnetic core loss. more magnetic core loss. more copper loss. no magnetic core loss. less magnetic core loss. more magnetic core loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Number of slip rings in 3-phase synchronous motor will be 2 1 3 or 4 0 2 1 3 or 4 0 ANSWER DOWNLOAD EXAMIANS APP
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