Electrical Machines When the supply terminal of a DC shunt motor are interchanged The direction of rotation will reverse. The motor will run much faster in the same direction. The motor will stop. The motor will run at its normal speed in the same direction as before. The direction of rotation will reverse. The motor will run much faster in the same direction. The motor will stop. The motor will run at its normal speed in the same direction as before. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The volt-ampere euation for a long-shunt compound motor is given by Vt= Ea + Iara Vt = Ea + Ia(ra + rs) Vt = Ea + Iara+ ILrs Vt= Ea– Iara Vt= Ea + Iara Vt = Ea + Ia(ra + rs) Vt = Ea + Iara+ ILrs Vt= Ea– Iara ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slip of an induction motor normally does not depend on rotor speed. shaft torque. core loss component. synchronous speed. rotor speed. shaft torque. core loss component. synchronous speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Torque angle of a synchorous machine operating from a constant voltage bus is usually defined as the space angle between Rotor mmf wave and resultant flux density wave. Stator mmf wave and resultant mmf wave. Rotor mmf wave and stator mmf wave. Stator mmf wave and resultant flux density. Rotor mmf wave and resultant flux density wave. Stator mmf wave and resultant mmf wave. Rotor mmf wave and stator mmf wave. Stator mmf wave and resultant flux density. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Lap winding is prefered for which type of machines? low current and low voltage low current and high voltage high current and high voltage high current and low voltage low current and low voltage low current and high voltage high current and high voltage high current and low voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC shunt generator working on load, the brushes are moved forward in the direction of rotation, as a result of this, commutation will improve and terminal voltage will rise . improve but terminal voltage will fall. worsen and terminal voltage will rise. worsen and terminal voltage will fall improve and terminal voltage will rise . improve but terminal voltage will fall. worsen and terminal voltage will rise. worsen and terminal voltage will fall ANSWER DOWNLOAD EXAMIANS APP
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