Electrical Machines The leakage reactance of a 3-phase alternator is determined by performing short circuit and slip tests. zero power factor and slip tests. open circuit and short circuit tests. open circuit and zero power factor tests. short circuit and slip tests. zero power factor and slip tests. open circuit and short circuit tests. open circuit and zero power factor tests. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A bipolar dc machine with interpoles has a main-pole flux of ф per pole and an interpole flux of Фᵢ per pole. The yoke of the machine is devide into four quadrants by the main-pole axis and The commutation axis. The flux-distribution in the quadrants will be ½ ( ф + фᵢ ) in all the four quadrants ½ ( ф + фᵢ ) in two diametrically opposite quadrants and ½ ( ф - фᵢ ) in the remaining two Quadrants ½ ( ф - фᵢ ) in all the four quadrants ½ ( ф + фᵢ ) in two adjacent quadrants and ½ ( ф - фᵢ ) in the remaining two quadrants ½ ( ф + фᵢ ) in all the four quadrants ½ ( ф + фᵢ ) in two diametrically opposite quadrants and ½ ( ф - фᵢ ) in the remaining two Quadrants ½ ( ф - фᵢ ) in all the four quadrants ½ ( ф + фᵢ ) in two adjacent quadrants and ½ ( ф - фᵢ ) in the remaining two quadrants ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Ward Leonard control provides speed control in both direction. in one direction only. above rated speed. below rated speed. in both direction. in one direction only. above rated speed. below rated speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor, damper windings are provided on pole faces. stator frame. rotor shaft. None of these pole faces. stator frame. rotor shaft. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Reversing the direction of rotation of split phase motors is done by reversing the terminals of main winding. reversing the terminals of starting winding. interchanging the capacitor from starting winding to main winding or vice versa. All of these reversing the terminals of main winding. reversing the terminals of starting winding. interchanging the capacitor from starting winding to main winding or vice versa. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Winding conductors of an electrical power transformer are mainly insulated by rubber insulation. paper insulation. wooden insulation. cotton insulation. rubber insulation. paper insulation. wooden insulation. cotton insulation. ANSWER DOWNLOAD EXAMIANS APP
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