Interested to Buy Any Domain ? << Click Here >> for more details...
what happen if ac supply is fed to rotor of the alternator
- 2 Answers
- 5495 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
hi frenz,its aswathy.i hve aplied for the hpcl test on feb,pls send the test patern & the placement papers as soon as possible. mail-id :kjaswathy@gmail.com
can any one tell in easy method for circulating current ??
how to identify vector group of three phase transformer by voltage method?
What is the kiosk parts, about them and their functions ? If anybody have some PDFs files or details about this plz send it on tawhidfaisal@Yahoo.com
When color of silica gel will gets change from blue to pink from Top to bottom?
What are the different power system losses and how can it be eliminated?
whether starting current is limited to rated current of motor through soft starting or it exceeds the rated current?
please suggest some good universities with low cost iam in totally full confusion so please help me my profile gre 283 and ielts 5.5
WHAT ARE THE DISADTAGES OF SINGLE-WIRE-EARTH-RETURN SYSTEM USED FOR RURAL ELECTRIFICATION?
two phases with neutral supply can be taken in 3C X 10 sq.mm cable .
in electrical control panel. how can i choose the cable rating. (example - 11kw motor, 18-25A mpcb}
how to wiring it with contactor and timer together
what is the profesional board for electrical engineer what is thepast and during construction for electrical engineering
Define gain margin?
What is the restart inhabit setting in ABB spam150c relay (Motor protection relay)
