Electrical Machines A 8-pole, DC generator has a simplex wave-wound armature containing 32 coils of 6 turns each. Its flux per pole is 0.06 Wb. The machine is running at 250 rpm. The induced armature voltage is 384 V 768 V 192 V 96 V 384 V 768 V 192 V 96 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Why are capacitors used with large AC induction motor? Improve power level. Improve power factor. Improve voltage level. Improve current level. Improve power level. Improve power factor. Improve voltage level. Improve current level. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the shunt resistance component equivalent circuit obtained by no load test of an induction motor representative of ? both 1 and 2 windage and friction loss core loss only Copper loss both 1 and 2 windage and friction loss core loss only Copper loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous generator, inverted V curve is drawn between field current on X-axis and armature current on Y-axis field current on Y-axis and armature current on X-axis field current on X-axis and power factor on Y-axis field current on Y-axis and power factor on X-axis field current on X-axis and armature current on Y-axis field current on Y-axis and armature current on X-axis field current on X-axis and power factor on Y-axis field current on Y-axis and power factor on X-axis ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The brushes of a DC machine should be placed on the commutator in the inter polar axis. armature midway between poles. armature in the polar axis. commutator in the polar axis. commutator in the inter polar axis. armature midway between poles. armature in the polar axis. commutator in the polar axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 8 pole, 50 Hz single phase induction motor is running at 690 rpm. Its slip with respect to forward field is 0.08 -0.08 -1.92 1.92 0.08 -0.08 -1.92 1.92 ANSWER DOWNLOAD EXAMIANS APP
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