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

Answer Posted / 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



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Determine the BTU size of an aircon for 20 sq metre room

1457


What happens if the series current double?

1006


I COMPLITED MY B.TECH AND 10TH CLASS WITH 70%MARKS BUT 12TH CLASS 55%MARKS..CAN I GET INDIAN RAILWAY RECUREMENT EXAMINATION?

1724


Is there any rule to select the voltage of motor based on KW rating? What is the rating above which lt motor becomes the HT motor?.

1239


Why negative feedback is preferred in the control system?

867






I want to know Electrical Circuit?

1715


How to calculate that clean water supply in one Day from 150 KLD STP?

1564


I am using submission of two ct in one and half scheme for 67/67N protection. Both CTs star point is grounded separately near ct box.Will two point ground give wrong tripping to 67/67N during fault or no matter.

1656


why i can not use thimble on capacitor duty contactor

888


I'm generating a pulse of 3V with frequency 80Hz (12.5ms time period) and pulse duration 0.125ms and feeding it to a transformer since i want the pulse to get amplified around 60V. At the output amplification s happening but the pulse is changed to a spike, can you tell me what could be the reason? (an ordinary transformer 220V-12V stepdown transformer is reverse connected ie. now it is 12V-220V stepup and voltage amplification happens)

1453


What is reactance, reluctance,capistance, pls give answeer in hinglish and be simply Jo asani we smajh m aa jaye

1585


HOW TO DESIGN THE body EARTH cable(Copper Conductor) size for 60KVA UPS?

1571


which type of cabel

1930


how to select rating of HT Panel

935


If mutual flux is 1.2wb & power factor is 0.8 lag , then what is the Useful flux of a transformer?

3969