in alternator how we can give power to rotor ? its power is AC or DC ?

Categories >> Engineering >> Electrical Engineering
Suggest New Category

in alternator how we can give power to rotor ? its power is
AC or DC ?

Question Posted / kumar

5 Answers
7091 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

in alternator how we can give power to rotor ? its power is AC or DC ?..

Answer / raj006

DC excitation is given to the rotor through slip rings.

Is This Answer Correct ?

9 Yes

2 No

in alternator how we can give power to rotor ? its power is AC or DC ?..

Answer / krishnaji

dc.

Is This Answer Correct ?

5 Yes

2 No

in alternator how we can give power to rotor ? its power is AC or DC ?..

Answer / amrish sharma

for this we use the exciter which makes the some ac voltage
and give it to the AVR ( automatic voltage regulater)
electrically,, then it convert it into dc and back to the
field of alternater which produces and helps in producing
magnetic fields,,, and when engine rotates the armature
conducter moves into the magnetic field then it produces
voltage and so on,,,

Is This Answer Correct ?

3 Yes

0 No

in alternator how we can give power to rotor ? its power is AC or DC ?..

Answer / guptar48

Friends,When altenator rotor rotate through Prime mover/
Engine,E.m.f genrates in Exciter rotor due to resudual
magnetism in Exciter stator. then genrate AC voltage in Exc
rotor goes through rectifier (DC Voltage) to Main Rotor and
we gets AC voltage through alternator. AVR only receive
referance voltage from main output and gives voltage to
Exciter stator according to load and also maintain output
voltage as per our set voltage limits.

Is This Answer Correct ?

1 Yes

0 No

in alternator how we can give power to rotor ? its power is AC or DC ?..

Answer / jaru(sati)

friends it should be noted that alternator produces power
,,,,so we need prime mover to rotate it,,,, like steam
turbine or hydro turbines

Is This Answer Correct ?

0 Yes

2 No

Post New Answer

More Electrical Engineering Interview Questions

why we generate 11kv power supply in generating station?

1 Answers DBG, NTPC,

what is MULTIPLYING FACTOR in substations??

2 Answers

Why do we twist copper to make cable?

3 Answers Bhel, Integrated, MR Cables,

IN A HT CABLES i.e. 1.9/3/3 kv, what is the meaning of 1.9 and 3.3.

1 Answers

What different between kw and kva. why maser AC in kva.

3 Answers

how df/dt relay operates & how it works?

1 Answers

What will happen if we give AC supply to DC motor?

4 Answers

how induction generator works?

3 Answers

why does connected a indutor with mnsformeretering core of current transformer ?

0 Answers

Why lose 1 phase voltage in 33kv to 415v stepdown transformer

0 Answers

When will you multiply and devide with derating factors to the actual value while sizing the cable?

0 Answers

As a electrical engineer.. what are the basic norms should follow in transformer oil testing.. 1.What is the Electrode type? 2.How long time you will give for oil testing?

0 Answers NAL,

For more Electrical Engineering Interview Questions Click Here