Answer / raj006

DC excitation is given to the rotor through slip rings.

Answer / krishnaji

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,,,

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.

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

What is SFU ?

4 Answers  

why we generally use 3.5 core cable or in other word 1/2 core for neutral and also confirm me that in balance conditiob(3 phase)current in neutral will zero

7 Answers   HCIL, Jindal, Siemens,

PLEASE SEND ME NTPC RELATED INFORMATION LIKE WHICH TOPICS HAV MORE SCOPE,BOOKS TO READ,CUT OFF...PLEASE.mail at thiru.1203@gmail.com

0 Answers  

Basic motor transformer generator

0 Answers   eCentric Solutions,

We have studied about many techniques for finding the stability of system, ROOT LOCUS, ROUTH, BODE PLOT, POLER PLOT etc. In these which is used where. what are the difference among them... PLZ tell me.......

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where to use CT and PT?

4 Answers   CEB, Reliance,

how will calculate the winding ohmic value in 3phase motors in h.p wise? ex.10 h.p motor winding value ph to ph ? 5 h.p motor any calculation please send me.

1 Answers   Hyundai,

What is full form of G.O.D in 11kv distribution?

10 Answers   GOD, MSEB, Shyam Indus Power, STL,

i have gear oil pump with single phase motor.some time its motor starts running in reverse direction rather than forward direction...whats the reason behind this issue. 1- either capacitor is week? 2- or winding is week?

0 Answers  

What kind of maintenance is conducted for generator

1 Answers  

9.The material used for coating the electrode is called........

3 Answers   SSC, TELiBrahma,

do we convert single phase line to three phase at minimum cost?

1 Answers