Interested to Buy Any Domain ? << Click Here >> for more details...
what happen if ac supply is fed to rotor of the alternator
- 2 Answers
- 5633 Views
- I also Faced
- E-Mail Answers
Answer Posted / raul
When the dc supply is given to the rotor windings, then the
polarity of the north and south poles will be fixed in the
space and time, so a sinusoidal magnetic field/flux will be
set up in the air gap which in turn will cut the stator
conductors and hence as per the lenz's law, there will be
induced emf and consequently induced currents in the stator
conductors.
But if ac supply is provided to the rotor windings, then
the polarity of the north and south poles will not be fixed
and it will keep on varying as per the sinusoidal curve, so
a sinusoidal field/flux will not be created in the air gap,
no flux cutting of the stator conductors and hence no
current in the stator windings. That is why the rotor
windings are not provided with the ac supply.
| Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
What is the minimum value of hfe for the oscillations in transistorized rc phase shift oscillator?
how we decide wire gauge for ac or dc coil and what is the basic diff. B/w these two coil?
WTA used cb?
why we can stote dc? why we cant store ac?
What is the function of NGR for the parallel operation of alternator? whats happen when different rating of alternator are running with parallel?
How to calculate VA rating for CT or PT or Control Transformer?
Will an earth leakage trip be activated if the component or wiring is faulty on low voltage equipment.Example An electrical Cat Scarer placed in the garden and water gets into the wiring.
what are the advantages and disadvantages of oil filled cables over XLPE cables
How energy is generated in hydroelectric power plant?
why all the feeders are designed in a particular manner ... is there any reason for that???
i want to model paper for section engg.
what is the ground fault relay,which purpose it will be use,clearly tell me plz
what is the minimum recommended leakage current of an earthed cable connected to the body or skid of an alternator
What is the most essential condition for the voltage build up for a d.c. Shunt generator?
How to calculate cable rating for 3 phase supply?
