Answer Posted / sanjeev kumar
transformer works on the principle of mutual induction and
it is immpossible to produce varing flux by dc. hence dc
transformer does not exist.
Is This Answer Correct ? | 27 Yes | 13 No |
Post New Answer View All Answers
Tell me in detail about c.t. And p.t. ?
what is model question rrb junior engineer electrical gr.II
what are the types of electromagnetic forces developed in practical transformer?
what is the acceptable value of TAN DELTA and dissipation factor for 11kV, 1.75HP Motor?.
For a 6.6kV Motor it is recommended to do megger test with 500 V d.c and not more than 5kV d.c but the Hi voltage withstand test should be performed by 12kV AC. Why the dc voltage test should be limited but AC voltage withstand test could be with such a high voltage?
which fault is severe and why?between lll fault and lllg fault which fault is severe and y?
what is advertised hop count
can we find the inductance of a induction motor?
What is the main purpose of c.f.b.c.boiler
working principles of cf lamp,incandescentlamp and f lamp?
What do you mean by Frame 5 Gas Turbine as well as Mark II.
Draw the wave shape of armature current in a generator subjected to a sudden three phase short- circuit at its terminals. Define various reactance of generator from this wave shape.
what is the correct format to create a resume for interview??
Thermal withstand capability under full short circuit conditions, in terms of number of times of occurrence of short circuit and corresponding anticipated percentage reduction in transformer life.
What happened if C.T mount at any cable or Bus bar in wrong direction . C.T going on proper work or not . C,T direction is essential thing to properly work.