why dc supply is given to the field of alternator

Answer Posted / ravikumar.g

For the alternator excitation by using the DC voltage.

For this excitation the field will genarate the residiual
maganetisim in the alternator.

When the alternator start running this excitation voltage
is induce the more voltage.

Is This Answer Correct ?    5 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is ramp signal?

641


How generating electric power export to grid from the generating station ?

1411


What is the Difference between Ac Drives and Dc Drives? According to application, speed, Torque, cost, Reliability, Construction, Motor etc... Thankyou !!!

1674


Can you please explain creepage distance in detail, for a 6.6kV cable head what must the distance be and how do you determine it?

2335


what is the chemical name and formula of refrigarent R-134a.

1780






In all analog voltmeters or ammeter showing some small size symbols. as well as a star and in star 2no. digit, resister symbol,and other. what is that's meaning ?

1582


What is Surge Capacitor? Why it is require in Generator Circuit Breaker,inspite of surge arrester?

2641


10 Mtr Hight of Lighting Arrestar how much area coverd??

2024


r we are using in gas turbine mark (5) frame (6) (made in india Bhel 1997) Ā

1297


Formulae for calculating the transmission line losses for different voltage levels

1618


how many joints are allowed in underground HT cable of 1 KM

1362


what are different types of electrical windings? i know the distributed winding ,concentrated winding etc but i want some detailed information, in what condition we will use distributed,concentrated windings what are the difference between them which is best, how induced emf changes by using different types of windings 20 hours ago - 1 week left to answer

1519


If we need 4c× 50mm sq cable but it's not available so we can pull 4c×25mm sq two cables?

928


I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?

1779


what is high and low cut off voltage of BB and DG at SPS????????

1005