what is field flash

Answer Posted / rakesh ranjan sharma

It is the process by which the reversed polarity of residual magnetism can be corrected by using an external dc source to remagnetise the field poles in correct direction.........

Is This Answer Correct ?    9 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is resistance reading of earth copper rod with grid and without grid?

640


what will happen if synchronous machine rotor fed from single phase ac supply 

1297


what is LSR?

1709


how to calculate the mesh earth network resistance in such substation, is there any recommended resistance values with references , thanks!

1834


Distinguish between nuclear power station with thermal power station for initial cost, starting period, cleanliness, and transportation of fuel

1523






why swityard is necessrry requirement in any bis power distributin systems?

1879


What si the d/f b/w KVA & KWH, kvarh & kvar, kwh & kvar phase voltage & line voltage

5582


how many Classification of fire extinguisher

1663


what is the criteria for selecting fuse rating in 1phase, 2phase & 3phase welding sets?

1342


What the difference between ac and dc inductor an capacitor

1718


what do u understand about FACTS? how they are useful?

1524


what are the ''pitting rings''and how cn they be controlled in a series generator

1363


WHAT IS THE MEANING OF BALANCED / UNBALANCED IN STABILIZER TYPES.

1963


What are the two basic types of transformers?

614


what is the effect of vector group while phase sequence of a generator changes,whether the vector group changes or not

1608