Electrical Machines In electric locomotives which of the following motor are used ? DC Shunt motor. Synchronous motor. DC series motor. DC compound motor. DC Shunt motor. Synchronous motor. DC series motor. DC compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The volt-ampere euation for a long-shunt compound motor is given by Vt = Ea + Iara+ ILrs Vt= Ea + Iara Vt= Ea– Iara Vt = Ea + Ia(ra + rs) Vt = Ea + Iara+ ILrs Vt= Ea + Iara Vt= Ea– Iara Vt = Ea + Ia(ra + rs) ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature of a DC motor is laminated to reduce hysteresis loss. friction and windage loss. eddy current loss. copper loss. hysteresis loss. friction and windage loss. eddy current loss. copper loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hysteresis loss will depends on f³ f f² f1.6 f³ f f² f1.6 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutator pitches of duplex and simplex lap windings are respectively 4 ang 1 4 and 2 2 and 1 2 and 2 4 ang 1 4 and 2 2 and 1 2 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which transformer, the tertiary winding is used? Star - star Delta - star Delta - delta Star - delta Star - star Delta - star Delta - delta Star - delta ANSWER DOWNLOAD EXAMIANS APP
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