Electrical Machines What is power factor of a 3 - φ induction motor at no load? Equal to 1. Low. Same as full load. High. Equal to 1. Low. Same as full load. High. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If s is the slip and f is the supply frequency of an induction motor, the frequency of rotor current is given by sf / 2. f / s. s2. sf. sf / 2. f / s. s2. sf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A frog leg winding is used in a DC machine to eliminate reactance voltage produced due to communication. the use equalizer in lap winding. the use of compensating winding. the use drum winding. reactance voltage produced due to communication. the use equalizer in lap winding. the use of compensating winding. the use drum winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field current is reduced to zero the maximum power developed by alternator is 5.46 KW. 1.644 KW. 0.9103 KW. 2.73 KW. 5.46 KW. 1.644 KW. 0.9103 KW. 2.73 KW. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the excitation of normally operating unloaded, salient pole synchronous motor suddenly gets disconnected, it continues to run as a DC motor. switched reluctance motor. variable reluctance motor. induction motor. DC motor. switched reluctance motor. variable reluctance motor. induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slip exists in none of above. synchronous motor. induction motor. in both machines. none of above. synchronous motor. induction motor. in both machines. ANSWER DOWNLOAD EXAMIANS APP
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