Electrical Machines 3rd harmonics are eliminated in induction motor by using delta connection. V connection. zig - zag connection. star connection. delta connection. V connection. zig - zag connection. star connection. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the temperature of armature resistance is increased, the speed of a series motor would None of above. decrease. increase. not change. None of above. decrease. increase. not change. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The volt-ampere euation for a long-shunt compound motor is given by Vt = Ea + Ia(ra + rs) Vt= Ea– Iara Vt= Ea + Iara Vt = Ea + Iara+ ILrs Vt = Ea + Ia(ra + rs) Vt= Ea– Iara Vt= Ea + Iara Vt = Ea + Iara+ ILrs ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An 8 pole DC generator has 500 armature conductors and useful flux per pole of 0.065 Wb. What will be the emf generated if it is lap connected and runs at 1000 rpm. What must be the speed at which it is driven to produce the same emf if it is wave wound? 2166.67V, 230 rpm. 2166.67V, 270 rpm. 541.67V, 250 rpm. 541.67V, 200 rpm. 2166.67V, 230 rpm. 2166.67V, 270 rpm. 541.67V, 250 rpm. 541.67V, 200 rpm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 250 volt dc series motor having an armature resistance of 0.2 Ω takes a load current of 60 A. What will be the torque produced at the shaft of the motor? Consider brush drop of 1V. can not be determined. 234.76 N-m. 133.22 N-m 266.20 N-m. can not be determined. 234.76 N-m. 133.22 N-m 266.20 N-m. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The breakdown torque of a synchronous motor varies as 1/V V² applied voltage V 1/V² 1/V V² applied voltage V 1/V² ANSWER DOWNLOAD EXAMIANS APP
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