what will be happen if we apply D.C supply to the
transformer

Answer Posted / atul sharma

as we know that it works on electro magnetic induction. when we applied d.c voltage across the primary winding a flux of constant magnitude will be set up in the core. hence there will be not be any self induced e.m.f in the primary winding to oppose the applied voltage.so it will draw more current as compare 2 a.c as a result it will burn the primary winding and damage the transformer this is bec d.c flow in a straight line so their is no rate of change of flux linkages as in a.c

Is This Answer Correct ?    1 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Can the output voltage of a rectifier be greater than the input AC voltage without the use of any voltage multiplier in the circuit??please provide the explanation too..

1641


how to find out cable size if load is 2800 watts, 230 volts AC supply and load distance is 1800 meters

1087


What is the estimated total hydropower potential of india?

623


Which Class insulation is prefered for the sandwich Busducts ? Why?

1554


What is MSL designation of a motor and same may be provided in details.

1220






i want to put single phase load on scott connected transformer,eventhough how to balance the transformer.

1410


why in an industry; machine having rated 200 h.p stopped after power factor is maintained above 0.97 lag by control panel in view-of energy saving

1589


What is cross over distortion? How it can be eliminated?

775


how to select electronic timer(Star-Delta) setting for diff. rating motors

1454


What will happen if the d.c. Machine is operated below rated speed?

684


What is warm / cold start of HT motors. How many warm start & cold start are possible in a day?

1566


What is the formuala to calculate the rating of motor protection circuit breaker

1719


define reflection method?

1492


What are the effects of adding a zero to a system?

673


what & how to check the lightning arrester

1452