Electrical Machines In DC machine shape of main field flux distribution is? peaky in nature triangular saddle shape flat tapped or trapezoidal peaky in nature triangular saddle shape flat tapped or trapezoidal ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction depends on which of the following? power factor of load magnitude of load current None of these both 1 and 2 power factor of load magnitude of load current None of these both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of rotation of 5th harmonic component in the stator of an induction motor is 0.5 times the synchronous speed. (1 / 15) times the synchronous speed. (1 / 5) times the synchronous speed. 5 times the synchronous speed. 0.5 times the synchronous speed. (1 / 15) times the synchronous speed. (1 / 5) times the synchronous speed. 5 times the synchronous speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Unbalanced supply voltage given to a 3 - φ, delta connected induction motor will cause less heating of the rotor. negative sequence current. less heating of the rotor. all of these. less heating of the rotor. negative sequence current. less heating of the rotor. all of these. 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
Electrical Machines In DC generator, full form of MNA is what? Magnetic no-load axis. Magnetically no-load armature co-ordinate. Magnetic neutral axis. Magnetic neutral armature co-ordinate. Magnetic no-load axis. Magnetically no-load armature co-ordinate. Magnetic neutral axis. Magnetic neutral armature co-ordinate. ANSWER DOWNLOAD EXAMIANS APP
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