Electrical Machines Maximum power developed depends on reactance voltage load angle both 1and 2 reactance voltage load angle both 1and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The teeth in the armature of a DC machines are sometimes skewed. This is done to reduce eddy electric current loss. copper loss. vibrations. hysteresis loss. eddy electric current loss. copper loss. vibrations. hysteresis loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines As compared to DOL starting, a cage induction motor with star-delta starting shall have reduced starting current. more starting time. smoother acceleration. more starting torque. reduced starting current. more starting time. smoother acceleration. more starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a DC compound motor can be reversed by interchanging series field connections. armature connections. armature or field connections. shunt field connections. series field connections. armature connections. armature or field connections. shunt field connections. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The damper windings also called the squirrel cage windings or damper grids are provided on the stator for improving power factor. both (A) and (B). are provided in a synchronous motor to make it self starting. consists of short-circuited copper bars embedded in the field pole faces. are provided on the stator for improving power factor. both (A) and (B). are provided in a synchronous motor to make it self starting. consists of short-circuited copper bars embedded in the field pole faces. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt motor runs at a no-load speed of 1140 rpm. At full load, armature reaction weakens the main flux by 5% whereas the armature circuit voltage drops by 10%. The motor full-load speed in rpm is 1080 1200 1203 1000 1080 1200 1203 1000 ANSWER DOWNLOAD EXAMIANS APP
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