what are different types of excitation in synchronous
generator,what is the difference between them
Answer Posted / qasim ali
there are two types of exitation:
rotary
static
rotary:in it , dc generator is used for excitition, that have the combination of sliprings n carbon brushed,this generator has a moving rotor n static stator..sliprings converts the axial motion of current to radial,and then dc frm this generator is given to poles of ac generator..
static:
here ac supply is taken from reserve power distribution center(rpdc) i.e frm 11kv or smthng else trnsmissin lines n then it is stepdown 400v by excitation trnsfrmr n then this ac passes through rectifier bridge .and then it goes to poles of ac genrator....
Is This Answer Correct ? | 4 Yes | 1 No |
Post New Answer View All Answers
could an induction motor be used for regenerative braking in electric-train control? in this type of application would some scheme have to be devised to obtain low synchronous speeds while braking? would induction-motor drive, therefore, be suitable for passenger service?
What are the characteristics of negative feedback?
what is doubling factor in making current of a breaker?
How to synchronization will be done between two DGs ?
what is the need of starter in tube light and what type of starter is used in that?
Its possible to use 3core 2R of 240 sq.mm cable for 3phases & separely 50sq.mm 3core cable fully for Neutral for connection of PCC to MCC 3ph..4wire system?
Where voltage are high and current to be interrupted is low the breaker preferred is:
why occ characteristics curve in not tracing back when we are bringing back the rhoestat?
What happens if we connect a single phase energy meter in reverse polarity.
what is the transmission loss for electrical supply? specifically a large shopping complex where the grid is half KM away, what will the % of transmission loss? is there any transmission loss for captive unit generation for above set? thanks
describe the constructional features of an auto transformer and its principle operation
HOW TO CALLICULATE RESITENCE,REACTANCE AND IMPEDENCE VOLTGE OF TRANSFORMER 13.33 KVA 144/240 VOLTS 93/56 A WITH FORMULA
what are pilot cells
Where servomechanism is used?
why do we put a transformer on soak before loading it