Electrical Machines Transformer cooling and insulating oil must be of high viscosity. low viscosity. low BDV. low resistivity. high viscosity. low viscosity. low BDV. low resistivity. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator, the ripples in the direct emf generated are reduced by employing graphite brushes. equalizer rings. carbon brushes. commutator with large number of segments. graphite brushes. equalizer rings. carbon brushes. commutator with large number of segments. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In above questions, find the power delivered by each of the alternators to a load of impedance 6Ω(resistive) 6000 W, 7000 W. 1000 W, 5040 W. 3190 W, 5040 W. 100 W, 2000 W. 6000 W, 7000 W. 1000 W, 5040 W. 3190 W, 5040 W. 100 W, 2000 W. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At the instant of starting, the per unit slip of 3 - Φ induction motor is 1.0. 0.1. 0.05. 0.5. 1.0. 0.1. 0.05. 0.5. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the field-flux axis and armature-mmf axis are respectively along quadrature axis and direct axis direct axis and interpolar axis quadrature axis and interpolar axis direct axis and indirect axis quadrature axis and direct axis direct axis and interpolar axis quadrature axis and interpolar axis direct axis and indirect axis ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the field system has to be provided on stator unlike synchronous machines Where in it could be on any member, because commutator action is not possible otherwise dc machines are comparatively low rating machines. it reduces field structure iron losses it gives more uniform air-gap flux distribution commutator action is not possible otherwise dc machines are comparatively low rating machines. it reduces field structure iron losses it gives more uniform air-gap flux distribution ANSWER DOWNLOAD EXAMIANS APP
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