VTU Updates CIRCULAR – Postponement of VTU Eligibility test for Research
CIRCULAR – Postponement of VTU Eligibility test for Research (VTU- ETR – 2021 )
Category vtu updates
VTU Updates Today – Research Scholars registered during 2018
VTU Updates NOTIFICATION – Research Scholars registered during 2018 for Ph.D./ M.Sc. (Engg ) by Research Program.
To operate the transformer in maximum efficiency always derive at what condition this can be achieved.
6 c] To operate the transformer in maximum efficiency always derive at what condition this can be achieved.
Calculate the full load speed of the motor.
6 b] A 4-pole, 500V, shunt motor has 720 wave-connected conductors on its armature.The full-load armature current is 60 A, and the flux per pole 0.03 Weber’s. Thearmature resistance is…
A dc motor running with a speed of N rpm obtain an expression for EMF induced in the armature winding.
6 a] A dc motor running with a speed of N rpm obtain an expression for EMF induced in the armature winding. Solution : When the Armature of D C…
For the single phase transformer obtain an expression for EMF induced in either primary side or secondary side
5 c]For the single phase transformer obtain an expression for EMF induced in either primary side or secondary side. Solution : N1 – be the no. of turns of the…
Calculate the speed of the machine running
5 b] A shunt generator delivers 50 KW at 250 V and 400 rpm. The armature and shunt field resistances are 0.02 Ω and 50 Ω respectively. Calculate the speed…
With a neat diagram explain the constructional details of DC generator.
5 a] With a neat diagram explain the constructional details of DC generator. Construction of DC Machine. Salient parts of a D.C.Machine are:(i)Yokeii) Field system (poles)(iii) Armature(iv) Commutator(v)Brushes Yoke:It is…
When a three phase supply given is given to the three phase induction motor explain how a rotating magnetic field produces in the airgap of the machine.
8 c]When a three phase supply given is given to the three phase induction motor explain how a rotating magnetic field produces in the airgap of the machine.
An alternator running at N rpm induces an emf in the armature conductors of the machine and obtain an expression of induced emf.
8 a] An alternator running at N rpm induces an emf in the armature conductors of the machine and obtain an expression of induced emf. Solution :