In a Synchronous generator, Can AC voltage be used instead
of DC voltage in field winding of rotor to produce AC power?
- 10 Answers
- 16658 Views
- NTPC, Windia, I also Faced
- E-Mail Answers
Answer Posted / vino kumar
In case of synchronous machines we have to maintain a
constant frequency.to maintain constant frequency the rotor
of syn.machine should be rotate with same speed of stator
rmf.so finally to achieve magnetic locking between stator
rmf and rotor ,the poles on the rotor should not be vary ,it
should be constant .the ac voltage changes the poles for
every half cycle.
so to maintain fixed polarity poles on rotor and to achieve
magnetic locking the rotor should be excited by dc supply only.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
How many types of faults are there in 3 phase power system?
mccb service sittings be done?
what is the voltage between earth & neutral in 3 phase electrical connection.
I HAVE BEEN SELECTED FOR APGENCO A.E(ELECTRICAL) 2008.HOW MUCH WEIGHTAGE FOR INTERVIEW AND WRITTEN TEST.HOW I HAVE TO PREPARE. PLEASE GIVE INFORMATION IF U KNOW.WHAT ABT G.D THIS TIME.CALL RATIO 1:2
Describe the colour rendering properties of i) tungsten filament lamps ii) tubular fluorescent lamp
Q) Write VBscript code along with QTPscript code in QTP tool for below scenario 1. Launch yahoo site(i know) 2. Do loogin(i know) 3.Click inbox link(i know) 4.Go to every page of mail box and count no.of read mails and no.of unread mails(i know) 5.Store page numbers, read mail count and unread mail count in a new excel file sheet 6.Create 10 types of graphs on that data 7.Do logout and close site(i know) 8.Save new excel files with graph
we specify current in case of feeder but in case of distributor voltage, why?
description with working of all parts of a Diesel generator???????
can we conduct the swineburne's test on a dc series motor? why?
how can we select the appropriate VCB ?
Earth has zero potential then what would be the neutral potential ?
block diagram of 2 ups system connected in parallel mode?
I need to connect a synchronous generator to the grid using automatic synchronization and two circuit breakers (one for synchronization, one for end connection to the grid), how to determinate the required diameter of the cables?
What is the Load Capacity of Panther conductor (0.2) and dog conductor (0.2)
What are the classifications of heating element?
