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? 1820W 1450W 2000W 1920W 1820W 1450W 2000W 1920W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum allowable moisture content of power transformer insulating oil is generally taken as 25 ppm. 20 ppm. 45 ppm. 35 ppm. 25 ppm. 20 ppm. 45 ppm. 35 ppm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Direction of rotation of DC motor is reversed by Interchanging armature and field connection. Adding resistance to field circuit. Reversing supply connection. Reversing armature connection or field connection. Interchanging armature and field connection. Adding resistance to field circuit. Reversing supply connection. Reversing armature connection or field connection. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which transformer, the tertiary winding is used? Delta - star Star - star Delta - delta Star - delta Delta - star Star - star Delta - delta Star - delta ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Lap winding is prefered for which type of machines? high current and high voltage low current and low voltage high current and low voltage low current and high voltage high current and high voltage low current and low voltage high current and low voltage low current and high voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer maximum flux density is not constant, the eddy current loss varies as V² f² f V V² f² f V ANSWER DOWNLOAD EXAMIANS APP
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