what happen when transformer connect on dc supply.

Answer Posted / prayank gupta

faraday's law states that E=∫(dф/dt)
Hypothetically an ideal transformer would work with direct-
current excitation, with the core flux increasing linearly
with time. In practice, the flux would rise to the point
where magnetic saturation of the core occurs, causing a
huge increase in the magnetizing current and overheating
the transformer. All practical transformers must therefore
operate with alternating (or pulsed) current

Is This Answer Correct ?    4 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is the Earth Voltages in Power Plants, Sub-stations, Industries, Residential & Commercial Buildings.

1658


what is the importance of Partial Dischage test for Electrical Equipments

1467


SIR, GIVE ME OPGW SAG CALCULATION FORMULA I AM DAE ELECTRICAL. THANKS

5974


how we start 40w tube light with 4 diodes,2capacitors,1 choke and without starter.(a product avilable in market which lights burnt tube lights also)

1629


a 100mva,400/200v transformer has leakage impdce of 10% draws a steady state line currentof---------------

1463






Could Please Explain briefly. Why used stabilizing resistance series with High impedance bus differential protection relay.

1278


What is the difference between indoor and outdoor transformer

5224


According to conduit size which size wiring & how many wires can we provide wires in conduit & how can we select conduit size accordingly?

1449


how to ctrl motor by use of ac or dc drive.plz explain evdintly

1486


Load transfer in 11kv double busbar switchgear - operation.

1504


sir i have cleared the apti test of EIL held on 15th march and my interview will be in new delhi on 2nd june.i will be very much helpful if u help me regarding the type of interview questions comes at EIL.(URGENT.........PLZZZZZZZZZZ...............)

1562


before transformer oil dielectric strenght tests are taken the oil should be allowed to settle to remove option 1 air bubbles 2 gasses 3 contamination 4 water

1186


What is the HVDC Transmission System? What are the conditions applicable to lay an HVDC Line?

1865


1))why we run three phase or three different circuit from a single conduit 2)) why not two circuit of different phase run in same conduit?? and why we run same three cicuit of same phae run in single conduit??

1925


Write the force balance equation of ideal spring element.

782