Interested to Buy Any Domain ? << Click Here >> for more details...
Why DC excitation is used for alternators? Why cant it be AC?
- 35 Answers
- 78071 Views
- ABB, Ace Info, Alstom, Shalivahana Power, I also Faced
- E-Mail Answers
Answer Posted / a.kossay
THATS BECAUSE IN GENERATORS THERE IS A TURBINE WICH CAUSE
ROTATION TO THE ROTOR SO WE ALREADY HAVE ROTATING ROTOR SO
THERE IS NO NEED FOR A ROTATING FIELD, AND IF SO IT WILL BE
HARD TO CONTROL THE SPEED OF THE FIELD
| Is This Answer Correct ? | 7 Yes | 33 No |
Post New Answer View All Answers
What is mason's gain formula?
Differentiate between induced emf and self inductance?
distribution is maximum done by a)radial b)network c) parallel d)b & c
HOW TO CALLICULATE RESITENCE,REACTANCE AND IMPEDENCE VOLTGE OF TRANSFORMER 13.33 KVA 144/240 VOLTS 93/56 A WITH FORMULA
Why is the starting current high in dc motor?
how to select electrical equipment such as fuse,dg,transformer,motor,msb,wire,cable as per the connecting load..please mention any books to design,take licence
sourse is 66 KV / 350 MVA, transfarmer is 1000 KVA 6.6 / 0.415 kv, iF fault is 28.75 MVA on 0.415 KV Bus then calculat the Transfarmer Impidance
How can calculate the earthing strip of Copper/GI for rating of 30kV,discharge current 10KA Lightning arrester.
how point on wave controller works.
How to set the relay,,??
WHAT IS counter flux IN CT?
Define peak time.
1.what is difference in maintain Hz again Hz in USA ? 2.how to calculate the battery AH? 3.why are yearly maintained in transformer how many tests in required?
what would happen if reactive power (kvar)is increased (more)or decreased (less)? how much exact reactive power should be maintained? and what should be done for that
